adjustable koni shocks!

INTRODUCTION & SALES POLICY

CATALOG INTRODUCTION AND POLICYTRUECHOICE,Inc.openedin1987asanationwideandinternationaldistributorofmotorsportsequipmentandtechnology.Pricecompetitiveness,productquality,productavailability,customertechnicalsupportandproductinnovationarethekeymarketingconceptsthatenabledustoestablishandmaintainourphilosophy.WecurrentlyoperateasTruechoiceRacingServicesinafacilitylocatedneartheheartofracinginAmerica.Ourlocation,philosophy,andproductrangeiscomplementedbyastaffofprofessionalswithover70yearscombinedracingexperience.You,thecustomer,arethekeytoourbusiness.Weareconstantlyseekingwaystoimproveourserviceandwewelcomeyourinputandideasregardingourproductsandservices.VisitourshowroominHilliard,Ohio,lookthroughourcatalogCD-ROMorcheckoutourwebsiteforavisualizationofourproductrange.YoursinMotorsports,

TRUECHOICERACINGSERVICES

ABOUT THIS CATALOGTheTruechoiceRacingServicescatalogfeaturessuspensionproductsfromworld-renownedmanufacturersandsuppliers.Ourenhancedmailorderandcomputersystemsprovideforanincreasedlevelofservice.Specificandin-depthtechnicalinformationregardingsuspensionsisourspeciality.

IMPORTANT INFORMATION

Truechoice Racing Services

4683 Northwest Parkway

Hilliard, OH 43026 USA

Toll-free Phone

1-888-566-4722

intheUSAandCanada.

Phone: 614-876-3483

Fax: 614-876-9292

Hours: 8 am to 5 pm Mon-Fri (EST)

ORDERING INFORMATIONCallustoll-free.ContactusthroughE-mail(Seeinformationbelow).Useoursecureonlineorderformthroughourworldwidewebsite.Faxinyourorder.Mailusyourorder.

SHIPPING INFORMATIONOrdersreceivedby4:00pmESTwillshipthesameday(allin-stockitems)viaUPSGround,3rdday,2ndday,orNextDay.Largerandheavyshipmentsarearrangedviamotorfreightandspecialistcarriersatfavorablerates.PostalServiceavailable,ratesvary.

HANDLING & C.O.D. CHARGESThereisa$6.35handlingchargeaddedtoallorderstocovercostsofpackagingandprocessing.A$9.00chargeisaddedbyUPStoallC.O.D.shipmentsforprocessing.

PAYMENT WeacceptAmericanExpress,VISA,Mastercard,Discover,cashorcertifiedchecks.Personalorcompanychecksareacceptedbypriorarrange-ment.Openaccountstatusisavailable,subjecttomeetingcreditcriteria.WealsoshipUPSCOD.BankTransfersareacceptedwitha$30.00transactionfee.Pleasecontactusforbankinginformationtosetupbanktransfers.

SPECIAL ORDERS AND RETURNSIfyouhaveaproblem,pleasecallus.Ifwehavemadeamistake,wewillbehappytorectifyit.Pleasehaveyourinvoicenumberavailable.SpecialOrderPartscannotbereturned.

CONTACT & ORDER FROM TRUECHOICE KONI RACING SERVICES THROUGH THE INTERNETYoucanreachTruechoiceRacingServicesviatheInternetbytypingtheURLwww.truechoicekonirac-ingservices.comOnceyouarriveatourWebpages,youwillfindanonlinepartscatalogandstore.Ifyouprefer,youmayE-mailusat“[email protected]”.

Worldwide Web On-Line Ordering 24 Hours a Day!

Noreturnswillbeacceptedwithoutproperreturnauthorization.Returnswillbeacceptedonlyifthepartsarereturnedwithin15daysofreceiptandareinnewcondition,includingoriginalpackagingandpackingsliporinvoice.OurRGA#(ReturnedGoodsAuthorization)mustbedisplayedonallreturnedpackages.

ReturnsoutsideofthesespecificationsmaybesentbacktoyouatTruechoiceRacingServices’discretion.

DAMAGED GOODS AllgoodsleaveTruechoiceRacingServicesingoodcondition.Goodsdamagedin-transitaretheresponsibilityofthecarrier.Openallpackagesuponreceipt.Youshouldnotifythecarrierimmediatelyofanydamageandshouldretainallthepackingmaterialsandpaperworkforinspection.

WARRANTY Allgoodsorservicessoldareforracingandoff-roaduse.Thereare“NO”warranties,writtenororal,expressedorimplied,madetothepurchaser.Weassumenoliabilityorresponsibilityforequipmentfailureorthesuitabilityofanyproductorserviceprovided.

PRICING Allpricingisracernet.Dealerinquiriesarewelcome.

TruechoiceRacingServiceswilldoitsutmosttoholdpricingthroughthelifeofthiscatalog.However,duetocircumstancesbeyondourcontrolpricesaresubjecttochangewithoutnotice.

BumpStops........................................................11Coil-OverKit...........................................11,14-22CoilSpringTesting..............................................12ConicalSpringSeat............................................11DampingInformation........................................1-23DragRacingShocks.........................................9-10GassingTools....................................................5-6HypercoilSprings..........................................25-27HydraulicSpringPerches.....................................28Koni28SeriesRaceDampers.............................2-5Koni30SeriesRaceDampers................................6Koni82SeriesRaceDampers................................7Koni86SeriesStruts.............................................7KoniDragRacingDampers...............................9-10KoniOvalTrackRacingDampers............................6KoniProducts............................................1-23,28KoniThreadedSuspensionkits..............................22OvalTrackShocks................................................6PDQMountingEye................................................6PhaseKits.....................................................14-21RevalveService..................................................12

Shocks............................................................1-22ShockBuildSheet...............................................13ShockDyno........................................................12ShockEyeBearings.............................................11ShockService/Repair.....................................12-13ShockServiceTools......................................5-6,24ShockTestingService....................................12,13ShockTopEyes...........................................5,6,11ShopServices.....................................................12SpannerWrench...........................................11,24SpringConversionKit....................................11,23SpringInformation.........................................22-29Springs...................................................23,25-27SpringPerches..........................................5,11,28SpringSpacers...................................................11SpringSeats.................................................11,28Struts..............................................7,8,10,14-22SuspensionSolutions......................................14-21TaylorShockWrench............................................24TopHatBushing..................................................11UpperSpringPerch.............................................11

QUICK INDEX - QUICK INDEX - QUICK INDEX - QUICK INDEX

WEB SITE - WEB SITE - WEB SITE - WEB SITE - WEB SITE

KONI QUALITY AND TECHNOLOGY ARE THE KEYS TO THE PERFORMANCE OF YOUR CAR’S SUSPENSION

REBOUND DAMPINGTheprimaryfunctionofrebounddampingistocontrolorslowdowntheundesirableoscil-lationsofthespringortorquetube.Rebounddampingcontrolsthetransitionalrollorleanasthevehicleentersacorner.

Itshouldnotbeusedtotryandcontainthetotalrollofthevehicle,butitwillcontrolhowfastthisrolloccurs.Remember,springrates,swaybars,rollcentersandrideheightsarealldeterminingfactorsinrollcontrol.

Reboundadjustmentisaveryeffectivetooltooptimizethecar’sbalancefronttorear.Itshouldbenotedthattoomuchreboundcontroloneitherendofthevehiclewillcauseaninitiallossoflateralacceleration(corneringgrip)resultingintoomuchundersteeroroversteerwhenenteringtheturn.

Wehopeyoufindthesetipsusefulatthetrack.Remember,thereisalwaysplentyofhorsepowerlurkinginthechassis,anditdoesnotnecessarilycomefromtheengine.Seemoretuningtipsonpage19.

TRUECHOICEispleasedtohelpwithyourKoniShockAbsorberneeds,whetheritbenewshocks,rebuilds,restorationoradviceonhowtogetthemostfromyourcar’ssuspension.Callustodayatthetoll-freenumberlistedbelow.

KONIshockabsorbershaveareputationforhighperformance.Inordertomain-tainthatreputation,Konireliesonquality,inbothtechnologicaldesignandmanu-facture,toassuretheirshocksachieveandmaintaintheirperformance.AllthroughtheKONImanufacturingprocessisevidenceofquality;producedfromthefinestmaterials,surfacesaremachinedtothenarrowesttolerances,strictquality-controlstandardsareincorporatedinallproductionsteps,attheendoftheproductionlineeverysingledamperis100%dyno-testedtoassureoptimumperformance.

KONI SHOCKS - SUSPENSION

TRUECHOICE builds KONI shocks for all types of racing cars.

At the top of the page is a beautiful 1982 Tyrrell 011/4 vintage F1, utilizing special Koni 3012 racing shocks built and serviced by TRUECHOICE. (Photo by David Hutson)

Middle of the Page: Unitech Racing’s beautiful new Nissan 350Z GT cars campaign on specially designed KONI 2822 4-way adjustable shocks.

(Photos here and elsewhere furnished by Melinda Stewart - Unitech Racing.)

All of the Indy Pro Series cars use Koni 2812 racing shocks, many of which are serviced by TRUECHOICE. TRUECHOICE provides technical sup-port to the IPS series.TRUECHOICE would like to give special thanks to the Indianapolis Motor Speedway for providing the photos of the Indy Pro Series Cars.

1

THE IMPORTANCE OF CORRECT DAMPING...KONI’SANSWER IS ADVANCED TECHNOLOGYShockabsorbersaretheheartofanycar’ssuspension.Theyareoftenthemostneglectedcomponentwhenitcomestoperformancetuning.KONIrecognizesthateveryvehiclehasuniquedampingneeds,andforthatreasontheyoffershockswiththreedifferenttechnologiesinordertoofferasystemthatistheperfectsolutiontoanindividualracingapplication.

Itisvitalthatthedampingrateoftheshockabsorberbeinhar-monywiththespringrateandunsprungmassofthevehicleandthentunedtothecurrenttrackconditions.

EveryKONIisadjustableforultimateperformancebenefits,andtheadjustabilityfeatureofKonishocksmakesthisvitaltuningasimpleprocedureifafewsimpleguidelinesarefol-lowed.

BUMP DAMPINGThebumpdampingcontrolstheunsprungweightofthevehicle(wheels,axles,hubcarriers,etc.).Itcontrolstheupwardmove-mentofthesuspensionwhenhittingabumpinthetrackorunderbraking.Itshouldnotbeusedtocontrolthedownwardmovementofthevehiclewhenitencountersdips(thisisafunc-tionofthespring).

Also,bumpdampingshouldnotbeusedtocontrolrollorbottoming.Generally,theidealbumpsettingisachievedwhenwalkingorsidehopinacornerisataminimumandtractionandridefeelthebest.

2

SUSPENSION - KONI SHOCKS

NEW GENERATION4-WAY ADJUSTABLE

KONI 2822

Thefour-wayadjustable2822seriesisauniqueKONIshockabsorber,especiallyde-velopedforthetopendinmotorracing.Indevelopingthisnewproduct,Koniengineersbenefittedfrommanyyearsofknowhowandexperienceinmotorracing.Eversince1954,Konihasheldaprominentpositionintheracingworld.Manyvictoriesandcham-pionshipsinFormula1,IndyCar,Champcar,IRLandmanyothertouring,sportsandformulacarserieshaveproventhesuccessandconfidenceamongsttheracingteams.TheNewGeneration2822seriesshockisbasedontheproventechnologyofthe2812seriestwo-wayadjustabledamperhavingbeenusedbymanyraceteamsduringthemanyyearsofit’sexistence.

DAMPER TYPEThe2822seriesshockisadouble-walled,high-pressuregas,hydraulicshockabsorber.Specificallydesignedforcompetitionpurposes,itisfullyadjustablewhilemountedonthecar.Itcontainstwoadjustersinbump(compression)andtwoinrebound(extension),bothhavinganindependentlow-speed,aswellashigh-speedadjustment.Itsprecisionadjust-mentmechanismallowsthemaximumcontrolpossibleoverthedampingforcesgenerated.

LOW SPEEDOnmodernracingcars,themeanpistonspeedsthedampersarerunningatareverylow.Asaresult,precisecontroloverthedampingforcesatlowspeedsisveryimportant.Thisinturnmeansthatverysmallflowsofoilhavetobecontrolled.Inmanyracingshockdesigns,aneedlevalveisusedtotryandachievethisfunction.Suchasimplemechanismhasmanydrawbacks.ForKONI,repeatability,consistencyandeaseofuseareamustforanyqualityracingshockabsorber.Toachieveit,the2822seriesusesuperiorandad-vancedadjustmentcartridgesthatcontroltheopeningandclosingofvalve-loadedports.Thesetwocartridgesarecontainedinthepiston,oneforbumpandoneforrebound,operatingtotallyindependentofeachother.Bothofthesecartridgeshaveeightpositionadjustmentsavailable,generatingatotalof64predefineddampingcurves.Distinctstops(clicks)assurethateachportcanbeeitheropenorclosed.Thus,totalrepeatabilityofperformanceisengineeredintothedamper,withnoneedforanytypeofcalibration.Auniquefeatureisthatthelow-speeddampingiscreatedintwostages,onebypredefinedbleedholesandtheotherbyports.

HIGH SPEEDWithbiggermovementsoccurring,suchasdrivingoverrumblestrips,thehigh-speeddampingbecomesimportant.Thesuspensionneedstobeabletomoveinsteadofbecom-ingsolidduetotoomuchdamping.Twocartridgesfittedintotheoutercylindercontrolthehigh-speeddampingandadjustment.Theyallowthedampingtohaveanadjustableblow-offforce.Also,thesecartridgesoperatetotallyindependentofeachotherandfea-tureeightpositions,allbeingpredefinedandhavingdistinctstops.Theadjustmentrangeofallfourcartridgesiswideanddividedinequalsteps.Figure1showstheadjustmentstepsinreboundwiththelowspeedadjustersettopositiononeandad-high-speedadjustersettopositioneightandadjustingtheeightstepsinlowspeed.

Due to the many configurations available, Length and Stroke information will be provided by a Truechoice Representative.

Part # KON2822 - $2200.00FullTechnicalManualavailableonrequest.

3

Forces in Bump and Rebound generated by piston area, not effected by rod displacement

Thisisindeedauniquefeature!Othershockabsorbermanufacturersmakeuseoftheroddisplacementtogeneratethebumpforces.Theoilflowinthatcaseisalwayssmallerthantheoilflowcreatedbythepistonringarea.Manyofthesetypeofshockstakealargerdiameterpistonrodtogetagreaterandbetter-controllableflow.Thenegativesideeffectsofalargerrod,however,arenotmentioned.Tonameafew:

•agreatertravelofthefloatingpiston(whichdividesthegasfromthe oil)andconsequentlycausesashorterlifespan.

•bulkyreservoirstoaccommodatethegreaterflowofoil

•smallerringareaonthepistonforproperrebound

•higherhydraulicpressuresneededtoreachanequivalentreboundforce thanwiththeuseofsmallerrods,ortheneedforbiggerpistons.

KONIhasdesignedthedampertoavoidthesenegativesideeffects.Theroddis-placementhasnoeffectwhatsoeverandallforcesaregeneratedbythebestpossibleoilflow.

Negligible phase lag

Alargepistonringarea,combinedwithasmalldiameterpistonrodandhighgaspressure,givesnegligiblephaselag(hysteresis).Or,insimpleterms,anegligibledelayindampingresponsetimeagainstdampermovement.Whenusingaremotereservoirthisphaselagonlyincreases,asmoreoilcanbecompressed(andsometimesthetubebetweenthecylinderandremotereservoirisslightlyflexingaswell).KONIusesthebestpossiblecombinationtogiveaslittlephaselagaspossible.

Low Speed damping in 2 stages (bleed holes and ports), no needle valves

Manymanufacturersonlyusethenumberorsizeofbleedholestoadjustthelowspeeddamping.Sev-eralalsodothisthroughatapered-shapedneedle.Suchaconfigurationisnotconsistentenoughandverysensitivetotoler-ancesandtemperatures.KONIusesfixedbleedholesincombinationwithvalve-loadedports.Eachportcanevenbecombinedwithaspe-cificbleedholediameter.Theseportsareeither

openedorclosedwhenadjustingandthusensuretotalrepeatabilityandconsistencyineachadjustmentposition.

Wide adjustment range in equal steps

Throughthegreatflexibilityandconfigurationofboththehigh-speedaswellasthelow-speedadjustmentcartridges,awideadjustmentinequalstepscanbedesigned.Thiswiderangediminishesthenecessityofhavingdifferentshocksfordifferenttracks.

Factory assembled and calibrated adjustment cartridges

Allshimstackassemblies,whichdeterminethefinaldampingcharacteristics,arefactoryassembledaswellascalibrated,toensurethecorrectgraphafterassemblyofthedamper.Althoughtheassemblyofthedamperisajobtobedonebycertifiedpersonnelonly,itmakestheoutcomeofthecharacteristicfoolproofandtheneedforcalibrationonashockdynoiseliminated.

Low-speed adjustment in both Bump and Rebound independently

Theconfigurationofthedamperenablesadjustingtherebounddampinginlowspeedwithoutanyimpactwhatsoeveronthebumpcharacteristicsandviceversa.Thismakessuspensiontestsallthemoreclearandeasytogettheoptimuminhandling.

High-speed adjustment in both Bump and Rebound independently

Aswiththelow-speeddamping,alsothehigh-speedworkstotallyindependentinbumpandrebound,havingallofthesameadvantages(seelow-speedadjustmentabove).

8 repeatable positions in each adjuster with positive-lock detents

Whensettingupthesuspensionofthecar,itisamusttohaveaclearknowledgeofwhichpositionisbeingusedandwhattheresultsare.Having20ormoreclicksdoesnothelptogetaclearview,especiallywhentheoutcomeofeachclickdifferseachtime.KONIdampers,therefore,onlyhave8verydistinctpositions,withpositive-lockdetentsdesignedtoalwaysgivethesameoutcomeperposition.

No need for external reservoir

Manydamperconfigura-tionsmakeuseofaremotereservoiramustasthebumpforcesareadjustedbychokingtheoilflowpassingthroughonitswaytothereservoir.Externalreservoirsbecomesuperfluous,asonlytheringareacreatesallforc-es.Needlesstosaythatthismakesthedamperlighterandresultsinasimpleandcleaninstallation.

Adjustable spring platform

Adjustablespringplatformsareamusttosetupthecorrectrideheightand/orspringpreload.KONIusesatrapezium-shapedthreadtohaveabiggerthreadsurfaceandconsequentlyasmallerloadonthethreadandlessforcetoadjusttheplatform.Witheachfullturn,theplatformheightchangesby2mm(0.08”).

Matches 2” and 2 1/4” springs

Thelayoutofthedamperandthespringplatformsmakeitpossibletofit2”or21/4”internaldiametersprings.Incasethespringisbeingfittedontopofthehousing,likeontheDallarafrontdampers,thespringdiameterdecreasesto1.4”ID.

Works in any position

Althoughthe2822isadouble-walldamper,thedesignisbasedonapurehigh-pressuremonotubelayout,knowingthatoilisseparatedfromgasbyafloatingpiston,whichenablesthedampertobeusedinanyposition.

Light weight

Notonlytheabsenceofaremotereservoir,butalsothechoiceofconstructionmaterialsmakesitalightweightdamper.Comparedtodamperswitharemotereservoir,thedif-

ferenceinweightcouldbeashighas30%.Hard anodized parts

Allthepartsthatareeitherpronetoeasilygettingdamagedorarevitalimportancefordu-rability,havebeenhardanodized.Althoughmoreexpensive,anodizingcriticalpartsresultsinadamperthatlasts.Tailor made and indi-vidually tested

Racedampersdoneedthatextrabitmoreofattentionandprecisionastheyarebeingusedunderextremeconditionsandalwaysrequiredtogivetheoptimumperformance.Therefore,allKONIraceshocksaretailor-madetocustomerrequirementsandindividuallyas-sembledandtested,thuslivinguptotheexpectationsdemandedofKONIshocksoverthelastcentury.Highest quality standards

Alloftheabove,aswellasthenameandfameofKONIproducts,canonlybesecuredbyusingthehighestqualitystandardsavailableinthemarketofautomotiveshockab-sorberproduction.StandardssuchasISO9001,QS9000,ISO14001,FordQS1andnumerousqualitycertificatesaremetandkeptwithintheKONIorganization.


High Speed Adjustment

Low Speed Adjustment


4

WHY THE 2812? HERE ARE 10 GOOD REASONS FROM SOME OF OUR CUSTOMERS:• Better Driver Feel • Easy to Use• Wide Range of Adjustment• No “Hateful” Bump Canister• Excellent Reliability and Repeatability• More Stability

Inmodernracingapplicationsdampersensitivity,reliability,repeatabilityandeaseofuseareamust.Thedesignandoperationofthe28seriesracingdampersisuniqueproofofKoni’sreputationastheleaderinthefieldofdampertechnology.The2812seriesarespecificallydesignedforthesepurposesandhaveproventrackrecordsinFormulaOne,IndyCar,Sportscars,VintageCarsandmanyothers.Theyarespecificallydesignedforcompetitionpurposesandofferfulladjustabilitywhilefittedtothecar.Theirprecisionadjustmentmechanismsallowformaximumcontrolpos-sibleoverthedampingforcesgenerated.

The28seriesdamperachievesthisbyutilizinganadvanceddesigncar-tridgethatcontrolstheopeningandclosingofvalveloadedports.Posi-tivelockdetentsassurethatthateachportcanonlybeopenorclosed.Theresultisthecartridgeswillalwaysaccuratelyreproduceasetofeightpre-determineddampingcurves.Variousbumpandreboundcartridgesareavailable,eachwiththeirowncharacteristics.

Apairofcartridgesishousedinthemainpiston,oneforbump,oneforrebound.Togethertheycanmodifyanygivenbasicvalvingin64differentways.Byhavingallforcesgeneratedbythepistonassembly,thecontrolofthedamperoverthesuspensionisinstantandprecise,decisiveandsmooth.Aseparatebulkyreservoirisnotneededandtheinstallationcanbekeptsimple,compact,lightweightandclean.

Driverslikethe28seriesbecausetheyfeelarealdifferencebetweenadjustmentsteps.Mechanicsandraceengineersappreciatetheuserfriendlinessandapparent“simplicity”ofthedampersthatmakethemsoeasytoworkwith.

KONI 28 SERIES SHOCKS

Lengths Available (eye to eye) in 5mm (.2”) increments

Max Lengths — 8.42”(214mm) to 15.5” (394mm)

Min Lengths — 7.28” (185mm) to 11.0” (280mm)

Stroke Lengths — 1.14’” (29mm) to 4.5” (1144mm)

Part # KON2812MK2 - $1,195.00 each Full technical manual available on request.

2812 MK II RACING DAMPERNeveracompanytoleavewellenoughalone,Koniintroducedthelatestmemberofits28Seriesfamilyofracingdampers,the2812MKII,aftersensingthatitalreadyhadagooddesignintheoriginal2812package.Koniwentlookingforwaystomakeincrementalimprovementsontheoriginalandthreedesignareaswereattacked—weight,friction,andpreci-sion.Theresultsshowthegoalwasmet!Lighterweightmaterialswereusedthroughouttheshockwithdurabilitymaintained.Thefrictionchallengewasmetbyusingstate-of-the-artcompositematerialsinkeyinternalcomponents.Precisionwasimprovedthroughsplined,ratherthankeyed,mechanisms.Inall,amuch-improvedstepforwardfromthealreadygreat2812.

FEATURES• Teflon® coated cylinder wall

• Reduced friction • Reduced weight

• Improved adjustment mechanism

• New appearance

• Independently adjustable bump and rebound.

• 8 bump and rebound repeatable positions

• No needle valve

• Consistent performance

• Engineering excellence

• Hard anodized aluminum body

• No external reservoir • Compact design

• Excellent Low-Speed Damping• At Last, A User-Serviceable Koni Shock• Out-Prices the Competition• More Control Over Bumps

2812 SHOCK SERVICE TOOLSSincetheKoni2812Seriesofshocksareeasilyservicedbythecus-tomer,Truechoicecarriestoolsandotheritemsyouwillneed.

•Flatbottomgassingtool-$225.00 • Adjustmenttool-$8.95•Gassingtool-$215.00 • Topeyeremovaltool-$45.00•Pistonclamp-$95.00 • Technicalmanual-$5.00•1gallonofshockoil-$22.50

2817 GASSING TOOL - $145.00

2816 & 2817 SERIES RACING STRUT CARTRIDGE

Lengths Availablein20mm(.79”)incrementsMax Lengths—11.02”(280mm)-20.47(520mm)Min Lengths—10.23”(260mm)-13.39”(340mm)Stroke Lengths—4.685’”(119mm)-7.835”(199mm)

Part # KON2816 - $1350.00 eachPart # KON2817 - $1700.00(w/housing)

KONI CHALLENGE MUSTANG FRONT$1900.00 Each

Developedspecificallyforproduction-basedracecarswithstruttypesuspensions,the2816and2817sharesitsinternalcomponentswiththeverysuccessful2812racingdamper.The2816istheuniversaltoolfortheprofessionalO.E.M.customerwhowishesto(re)designaMcPhersonsuspensionfromscratch.Asabareinsert,itoffersmaximumfreedomtothesuspensiondesigner.Availablewitheitherapinoreyeupperattachmentandastrokerangingfrom119(4.685”)to199(7.835”)mm.The2817isthecost-effectivestrutsolutionfortheprofessionalorclubracer.The2817isasemi-finishedaluminumMcPhersonstrutwithoutbrackets,containinga2816typeinsert.Italsooffersstrokerangesfrom119to199mm.Steelbracketscanbeweldedontothehousingbythecustomer.Thedamperbodyhasa3/4”(19mm)pinattachmenttoconnectittotheuppersuspensionbearing.Thepistonrodend,containingtheadjustmentdiscsconnectstothebottomofthesuspensionstrutcasing.Thiscombinesthestiffestassemblypossiblewithlowfriction.Thestrokelengthsandvalvingcharacteristicswillbecustom-builttosuitthespecificapplication.FulltechnicaldetailsandinstallationdimensionsareavailablefromTRUECHOICE.

2812 SERIES LONG BODYRACING DAMPER2812 TECHNOLOGY EXTENDED!Thesamedesign,featuresandoperationofthestandard2812inalongbodyconfiguration—theseextendedversionsofthe2812allowforapplicationsthatwerepreviouslyunobtainable.Thenewlongbody2812isproventechnologyandisacompetitiondamper,fullyadjustablewhileonthecar.Thelongbody2812hasprovenitselfinawiderangeofapplicationsincluding:TouringCars,GTCars,andPro-StockDragCars.Whentheextralengthisrequiredinafull-blownracingshock,choosethe2812longbody!

Sample lengths available:Max15.62”(397mm)-24.29”(617mm)Min11.14”(283mm)-15.47”(393mm)Stroke4.48”(114mm)-8.81”(224mm)Lengthscanvarydependingonmountingeyeconfigurationandlength.Pleasecallforyourspecificapplication.Part # KON2812 Long Body - $1095.00 each

2812 LIGHTWEIGHT UPGRADE KITTruechoiceofferslight-weight,lowfriction2812upgradekitsforyour2812MarkIdampers.Prices start at - $300.00

2812 REBUILD/VALVING KITAllrebuild/valvingcomponentsmaybepurchasedfromTruechoice.

Truechoice can supply a wide variety of attachment options and spring hardware configurations for the 2812 Series of racing dampers. Pictured above are various pieces of 2812 Series special hardware.

Pictured to the right is a 2812 (MK I) with a slimline spring

mounted onto the top of the shock’s body with special top eye/adjustable

spring perch hardware. Call for Pricing.


PORSCHE GT3R 2817 STRUT KITDesignedasanextremelyridgidstrutwithverylowfrictionandtheexcellentlow-velocitycontrolfeaturesoftheKONI2812Seriesdouble-adjustableshock.Part # KONGT3FR - $1700.00 eachTherearofthePorscheGT3RcanbecontrolledbyKONI’slatest4-wayadjustable2822seriesshock.

Part # KON2822 - $2200.00 each

5

28 Series Screw-on Upper Spring PerchAnalternativetopeyeassemblywithascrew-onupperspringseat,offeredinbothon-axisandoff-axislayouts.Kitiscompletewithtopeye,bearing,springseatandeyelocknut.

Part # KON71.52.07.055.0 (off-axis) - $295.00

Part # KON71.52.07.054.0 (on-axis) - $295.00


6

3012 &11 SERIES RACING DAMPER3012 SeriesTheKONI3012shockabsorberisperformanceprovenbywinningconsistentlyatalllevelssince1986,includingtheIndy500.The3012isanaluminum-bodied,externallydouble-adjustable,high-pressuregas,coil-overdamper.Itspatentedmonotubedesignallowsforindependentchangestothereboundandbumpdamping.Theextremelylightweight(only3lbs.,includingspringretainers),hard-anodizedbodyaccepts2.25”I.D.or2.50”I.D.springs.The3012isespeciallysuitedtoapplicationswithhigherpistonspeeds,wheremoreprogressivedampingisrequired.The3012hasapproximatelyfourtosixtimestheadjustmentrangeinanygivenvalvingthanitscompetitors,thuseliminatingconstantrevalvingproceduresfromtracktotrack.The3012seriesisavailablewithavarietyofvalvingstomeetyourspecificdampingrequirements.Duetotheuniquevalvinganddampingcharacteristicsavailable,itisrecommendedthatyoudiscussyourneedswithoursalesstaffpriortoordering.Availableinahugerangeofdampingcharacteristics,anduptoa9”stroke,the3012isaveryversatileperformerfromclubracertoIndy,andfromstreettoNASCAR.

3011 SeriesThisshocksystemisalsoavailablewithasteelbodycoil-overornoncoil-over,asthe3011serieswithawiderangeofcustommountingarrangements.Lengths Available(eyetoeye)in5mm(.2”)incrementsMax Lengths—10.39”(264mm) to22.25”(565mm)Min Lengths—8.23”(209mm)to16.25”(412mm)Stroke Lengths—2.16’”(55mm) to8.00”(200mm)Part # KON3012 SERIES - $600.00 EachPart # KON3011 SERIESCoil-over - $500.00 EachNon Coil-over - $450.00

PDQ MOUNTING EYE - FOR THE 3012/11 SERIESThePDQeyeisanalternatefixingdevicemadeforthe3012/11rangeofdamper.WiththeadventofthePDQeye,itisnolongernecessarytoremovethedamperfromthecartoadjustbumpdamping.Inthisdesign,thepistonroddoesnotthreaddirectlyintotheeyethewayitnormallydoes;ratheritisthreadedintoadiskwhichisabletorotatefreelywithinthebodyoftheeye.Thisoptionisavailableforallnew3012dampersandcanberetrofittedontoanyexisting3012alreadyinservice.Anessentialadd-onforquickbumpadjustments.Idealforshortpracticesessionstogetthemostoutofthehandling.Part # KONPDQ - $175.00 Each

30 SERIES For Asphalt & Dirt!KONI’S mono-tube, high-pressure gas damping solution for Oval Track racingTheKoni30Seriesshockisasingle-adjustable,mono-tubedesign,thathasfourdistinctreboundadjustmentsthatallowyoutoadjusttheshocktosuityourneeds,chassissetupandtrackconditions.Itislightweight,veryconsistentandveryaffordable!

Prices starting at $141.25 each

3014 SERIES Oval Track ShockKONI’S aluminum mono-tube, threaded-body, externally adjustable solution for Oval Track racingThenewKoni3014Seriesshockisthepremierreboundadjustabledamperintheindustry.The3014canbeadjustedwithoutremovinganythingfromthecar,justturntheadjusterwheeltothedesiredpositiontoset.Thislow-gas-pressure,mono-tubeshockhasaninestopreboundvalveandcanbeorderedwithtwocompressionvalues.

Prices starting at $450.00 each without spring hardware

5” STEEL SHOCK Part Bump Rebound Min. Max. Number Valving Valving Length Length KON30-5325 3 2-5 10.75” 15.75” KON30-5436 4 3-6 10.75” 15.75” 6” STEEL SHOCK Part Bump Rebound Min. Max. Number Valving Valving Length Length KON30-6325 3 2-5 12.25” 18.25” KON30-6436 4 3-6 12.25” 18.25” 7” STEEL SHOCK Part Bump Rebound Min. Max. Number Valving Valving Length Length KON30-7325 3 2-5 12.75” 19.75” KON30-7436 4 3-6 12.75” 19.75” KON30-7514 5 1-4 12.75” 19.75” KON30-7647 6 4-7 12.75” 19.75” 8” STEEL SHOCK Part Bump Rebound Min. Max. Number Valving Valving Length Length KON30-8325 3 2-5 14.25” 22.25” KON30-8436 4 3-6 14.25” 22.25” KON30-8414 4 1-4 14.25” 22.25” KON30-8525 5 2-5 14.25” 22.25” 9” STEEL SHOCK Part Bump Rebound Min. Max. Number Valving Valving Length Length KON30-9325 3 2-5 14.75” 23.75” KON30-9436 4 3-6 14.75” 23.75” KON30-9414 4 1-4 14.75” 23.75” KON30-9425 4 2-5 14.75” 23.75” KON30-9525 5 2-5 14.75” 23.75”

5” ALUMINUM SHOCK Part Bump Rebound Min. Max. Number Valving Valving Length Length KON3014-5319 3 1-9 10.75 15.75 KON3014-5519 5 1-9 10.75 15.75 6” ALUMINUM SHOCK Part Bump Rebound Min. Max. Number Valving Valving Length Length KON3014-6319 3 1-9 12.25” 18.25” KON3014-6519 5 1-9 12.25” 18.25” 7” ALUMINUM SHOCK Part Bump Rebound Min. Max. Number Valving Valving Length Length KON3014-7319 3 1-9 12.75” 19.75” KON3014-7519 5 1-9 12.75” 19.75” 8” ALUMINUM SHOCK Part Bump Rebound Min. Max. Number Valving Valving Length Length KON3014-8319 3 1-9 14.25” 22.25” KON3014-8519 5 1-9 14.25” 22.25” 9” ALUMINUM SHOCK Part Bump Rebound Min. Max. Number Valving Valving Length Length KON3014-9319 3 1-9 14.75” 23.75” KON3014-9519 5 1-9 14.75” 23.75”

2822 & 3012 GASSING TOOL$350.00 Each

8216 SERIESThiseconomicalalloy-bodiedshockfeaturesexternalreboundadjustmentandwillaccept2.25”and2.50”I.D.springs.Thetwin-tubehydraulicdesignisagreatnon-gasalternativetothe30seriesanditcanbeconfiguredforawiderangeofapplicationsanddampingchar-acteristics.The8216isfullyrebuildableandcomescompletewithspringhardwareand1/2”I.D.sphericalbearings.

Lengths Available(eyetoeye) in10mm(.2”)increments

Max Lengths—11.22”(285mm) to19.09”(485mm)Min Lengths—8.58”(218mm)to 12.52”(318mm)

Stroke Lengths—25/8”to65/8”

Part # KON8126 Price - $500.00

8212 SERIESTWIN TUBE HYDRAULICThisisanaluminum-bodied,externallydouble-adjustable,coil-overdamperwhichhasbeenusedonWorldChampionFormula1,Can-Amandvirtuallyeverytypeofracecarevermade.

Bumpandrebounddampingcanbeadjustedindependentlywithoutremovingtheshockfromthecar.Adjustablespringseatsaccepteither2.25”or2.50”I.D.springs.

Theseshocksarefullyrebuildableandthevalvingcanbeadaptedtoawiderangeofapplica-tions.Recentlyupdatedtoincludeadvancesinmaterialsandmanufacturingtechniques,thisclas-sicshockdesignisthepremiumshockabsorberforvintageracecarsandrestorations,aswellastheultimatenon-gasalternativeformanynewracecarapplications.

8211 SERIES TWIN TUBE HYDRAULICThe8211seriesisidenticaltothe8212,exceptithasanickel-platedsteelbody,whichaddsalittleweight,butoffersidenticalperformance.IdealforvintageFormulaFordapplicationsorwherespecialmountingsarerequiredandweightisnotaconcern.

8212 & 8211 PRICINGLengths Available(eyetoeye) in10mm(.39”)incrementsMax Lengths—11.0”(264mm)to17.0”(499mm)Min Lengths—8.0”(209mm)to11.0”(339mm)Stroke Lengths—3.14’”(80mm)to 6.10”(155mm)

Part # KON8212 - $600.00

Part # KON8211 - $600.00


8610-1436 & 1437 RACE STRUT INSERTThisrace-valvedKONIinsertwilladapttoawiderangeofstruthousingsandisideallysuitedtostreet/raceapplications.“Ourmostpopularstrutconversion,”itisexternallyadjustableforrebounddampingandisbothrebuildableandrevalvable.Abumprubberisfittedasstandard.Themaxi-mumstrokeis5.94”

Part #KON8610-1436 or KON8610-1437 - $198.75Wewilladaptan8610toyourstruthousing—Quotedpricebasedonapplication.

8611IMPROVEDTOURINGSTRUTThisexternally,double-adjustablestrutinsertcanbemadetofitmanypopularMcPhersonstrutapplica-tions.Readmoreaboutthisunitonpage20,intheSuspensionSolu-tionssection.$335.00 (Unit Only)Wewilladaptan8611toyourstruthous-ing—Quotedpricebasedonapplication.

7


8

DOUBLE EXTERNALLY ADJUSTABLE McPHERSON STRUTAdjust Compression and ReboundCAMARO, MUSTANG, PORSCHE, BMW, HONDA, TALON, TOYOTA, NISSAN, ETC.Thebiggestproblemwithstrut-typeapplicationsforperformanceorracingisthedifficultyinadaptingthemtoasuitabledampingcharacteristicandthelackofadjustability.TRUECHOICEcanconvertmostKONI-basedMcPhersonstrutstodouble-externaladjustmentandconfiguretothespecificapplication.TRUECHOICEcanbuildaKONI“Double-adjustableWetKit”intomostotherstruthousings,allowingustodevelopawiderangeofspecialistapplications.Vehiclesequippedwiththisfeaturecanbetunedtowidely-varyingtrackandroadcondi-tionsveryquickly.

Features: • Valvingforracing/street-sport. •10-wayseparate,externaladjustmentsforbumpandrebound.•Low-pressuregasoption.•Coil-overconversion.•Rebuildable/Revalvable.Due to the wide range of custom requirements, we prefer to quote for your specific needs.Conversion prices start as low as $425.00 EachSee Suspension Solutions Pages 15-21

KONI CONVERSIONS FOR BOGE & BILSTEIN PORSCHE 911 FRONT STRUTSExternally Double-adjustable Front Strut Conversion for 1974-1989 Porsche 911 ModelsTRUECHOICEcanconvertBogeorBilsteinPorschefrontstrutstoKONIexternallydouble-adjustablestrutsgiving1974-1989Porsche911ownersabet-terhandlingsuspensionpackage.This911frontstrutconversionallowsKONI’s10positionbumpandreboundadjustabilityexternallyanddifferentvalvingforsport,streetandracinguses.Oncetheconver-sioniscomplete,thestrutunitsarerebuildableandrevalvablebyTRUECHOICE’sKONIshopservices.Otheroptionsfortheseconversionsincludealow-pressuregasoptionandacoiloverconversion.

Boge Strut Conversion $525.00 Each Bilstein Strut Conversion $650.00 Each

PORSCHE 911 REAR SHOCKSKONIPorscherearcoil-over,monotubeortwin-tubehydraulicshocksareexternallysingle-ordouble-ad-justable,andtheycompletetheKONIshockpackagefor1974-1989Porsche911suspensions.Likethefrontstrutconversion,allofKONI’sadjustabilityandvalvingisavailablefortherearPorsche911shocks.

$120.00 - $550.00 Each (depending on the desired configuration)

PORSCHE 911 DRIVERS -ADJUST TO AN UPGRADE...KONI

Attention Vintage Mustang Owners!!!YoucanonceagainpurchasenewKonidoubleadjustabledampersforyourprizeracingmachine.Truechoiceisnowofferingthisexceptionaldamper,whichlooksoriginalandisawinningperformer.Thesedamperscanberebuiltandrevalvedtoyourrequirements.Pleasecallaboutyouapplication.

Starting at $625.00 Each Complete

Ford GT 40 Type ShockBuilttofactoryspecs.Manyothertypesofapplications-

$725.00

KONI LAMBORGHINI SHOCK CONVERSIONS

FERRARI LOAD-LEVELER CONVERSIONSTheoriginalKONILoad-Leveler’sarenotfactoryrebuildableandareobsolete.ThisCoil-Overdesignisasolutionthat providesmuch-improvedride,adjustablerebounddampingandrideheight,alongwitheasychangingofspringrates. Abolt-inconversion.Part # KONFERRARILEVEL$795.00 each

ReplacesOEMshockabsorberwithareboundandrideheightadjustabledamper.Allowsforeasychangingofspringrates.Internalorexternalreboundadjustment.

Part # KONLAMBOINT (InternalAdjustment) $750.00Part # KONLAMBOEXT (ExternalAdjustment) $1000.00

8212 SERIES ALUMINUM BODIED SPA1 DRAG RACING SHOCKDouble Adjustable Coil Over ShockDuetoitsuniquevalvingandwiderangeofadjustmentsinbothreboundandcompression,thisseriesofKONIdragracingdampersisadaptabletosatisfymanysuspensionrequirements.Thisadjustableplatformacceptsa21/4”I.D.spring,orwhenusedwithnylonadapters,itacceptsa21/2”spring.Itissuppliedwitha23/16”bumprubber.

ELECTRIC DRAG SHOCK ABSORBERElectric Adjustable Coil Over ShockAdriver-activatedremoteswitchinstantlyincreasesordecreasesrebounddampingforces.Connec-tionismadeviaamicroprocessortoanelectricservomotor,builtintothepistonrod.Theadjustablespringplatformaccepts,a21/4”I.D.spring,orwhenusedwiththenylonadaptersacceptsa21/2”spring.Itissuppliedwitha25/32”(19/16”for8216-2027)thickbumprubber.

Max Length—191/4” Min Length—125/8” Stroke Length—65/8”Part # KON12-9000SPA11 - $2677.00 per kit.

KONI SPA1 TECHNOLOGY FOR THE DRAG RACERTheKONIDragRacingShockAbsorberSeriesSPA1haslongbeenthemainstayontheprofessionalcircuitduetotheiruniquetechnologyinbothsingle-anddouble-adjustabledampertechnology.

KONI surpasses the old 90/10 theory.

TheKONISPA1seriesofdrag-racing-onlyshockabsorbersisacompletedeparturefromtheold“90/10”theorywhichisnolongervalidtothemoderndragracingcompetitor.Theoldthinkingwastohavethevehicle’sfrontendrisequicklyandstaytheretopromoteasmuchweighttransferaspossibletotherearwheels.Thiswasachievedbyvirtuallynodamperreboundforces(10)andagreatdealofbumpforce(90).Thetheorywastoholdthefrontsuspensionuptomaintainthat“bite”tothereartires.Problemwas,thehighfrontenddestroyedanyattemptatproperaerodynamicsandE.T.’ssufferedasaresult.

TheKONISPA1seriesofdragracingshocksre-writetheoldtheoryinseveralways.First,thereisvirtuallynobump(compression)damping,allow-ingthefrontendtosettlequickerandrestoringthepropernose-downattitudethatisessentialforcleanairflowoverthecar.Second,therebound(extension)forcesaremadevelocitysensitive,meaningtheforcesincreaseataratedirectlyproportionatetotheshock’spistonspeed.

Onadrysurfacewithgoodhookup,theamountofliftgeneratedbyinitiallaunchisverysuddenandquiteviolent.ThevelocitysensitiveKONISPA1reactsinstantlytodampenthislift,avoidingboggingcausedbytoomuchweighttransfer.Itisallaccomplishedbygoodshockdesign,propertuningandKONI’sfreshlookatoldtheories.

Inanothercondition,aslicksurfacewouldprovidelessliftandtireshock,sotheSPA1thenallowsmoremovementofthefrontendsincethelackofinitialtractiondoesnotliftthechassisasviolently.ThisgentleimpulsedoesnotactivatethehigherspeedcircuitoftheSPA1valving,andallowsmorefronttorearweighttransferresultinginbetterbite.SPA1dragshockshavefivesettingsthatenableyoutotuneyourchassisforthebestfronttorearweighttransfer.

ForKONIrearSPA1shocksthenewtechnologyhasbroughtaboutabigdifference.Therearshocknowhasnearlyzerobump(compression)damping,buttherebounddampingisnowdigressive.Thismeanstheyaredesignedtode-gress,or“blowoff,”athighpistonspeeds.Thispreventsthepossibilityofgrosslyover-dampeningtherearsuspensiononinitiallaunchwhichwouldpickuptherearwheelscausingalossoftraction.TherearSPA1KONIwill“blowoff”andthenallowproperunwindingoftherearsuspension.

8212-1121 157/8”Max103/4”Min51/8”Stroke8212-1123 191/2”Max121/2”Min7”Stroke8212-1126 171/2”Max111/2”Min6”Stroke

These are drag racing shocks only.Part # KON8212SPA - $435.00 Each

2812 SERIES LONG BODY DRAG RACING SHOCKNowavailable—theadvancedcontroloftheKoni28Seriesofshocks!Thisshockfeaturesexcellentreliabilityandrepeatabilityinitsfunctions-nowwithspecialvalvingforthedragracer.Seemoreontheshocksspecificationsonpage6ofthiscatalog.Callandfindoutmoreaboutthedragraceversion.Part # KON2812SPA - $1050.00 each.


9

SUSPENSION - KONI SHOCK SERVICE

10

A TRUECHOICE shock service specialist revalves a KONI SPA1 shock to the specifications required by a particular customer. Special valving of KONI drag shocks translates to better on-track performance.

8216 SPA1 ALUMINUM- BODIED DRAG RACING SHOCKExternally Adjustable Coil Over ShockDesignedforusewithcoilsprings,thisreboundadjustabledamperincludesanadjustablespringplatformwhichacceptsa21/2”insidediameterspring,orwhenusedwithnylonadaptersitwillaccept21/2”I.D.springs.Itissuppliedwitha25/32”(19/16”for8216-2027)thickbumprubber.

Part # KON8216-1906 151/2”Max 103/4”Min 43/4”Stroke




These are drag racing shocks only.

$323.00

KONI factory-trained technicians provide a wide range of special services to the drag racer.

Professional Drag RacingKONI’sDragRacingcoil-overshocksarespeciallycalibratedforprofessionaldragracing.Itisrecommendedthatyousendintheseshockseveryseasontodetermineifanyadjustmentsarerequired.

Bracket RacingIfanSPA1shockisnotreadilyavailable,TRUECHOICEcanconvertanexistingKONIshocktoSPA1dragracingvalving.TIP:Remember,ALLtrailermilesaddweartoyourshockabsorbers,andmaycostvaluableelapsedtimeonthetrack.Shocksshouldbeservicedregularly.Checkoutpages14and15inthiscatalogforacompletelistofTRUECHOICEservicesandservicepricesforallKONIshocks.

SUPER STOCK SHOCKCONVERT YOUR “F” BODY CAMARO, FIREBIRD OR MUSTANG TO KONI SPA1 DOUBLE-EXTERNALLY ADJUSTABLE FRONT•IMPROVEDWEIGHT TRANSFERFOR BETTERLAUNCH CONTROL•CANBEREBUILT ANDREVALVED•CUSTOMIZEDTO YOURREQUIREMENTSCarsequippedwiththisconversionfeatureandcoupledwithKoniSPA1rearshockscanbeeasilytunedtosuitalltrackconditions.

Starting at $625.00 Each - Complete

80-2650 SPA1 DRAG RACING SHOCKSingle Adjustable Coil Over ShockDesignedforusewithcoilsprings,thisreboundadjustabledamperincludesanadjustablespringplatformwhichacceptsa21/2”insidediameterspring.Silentblocsarefittedintotheeyeattachments.Theinsideboreofthebushingssuppliedis1/2”I.D.Max Length—157/8” Min Length—1011/16” Stroke Length—53/16”

$200.00 Joseph Lo Cicero runs Koni Strut conversions on his Camaro. Photo: Team Photo Finish.

BUMP STOPSSinceracingdampersareusuallyrequiredtolimitthetravelofthesuspension,allKoniracingdamperscomesuppliedwithaspecially-designedcellularpolyurethanebumpstop.Thisprovidessafeandcontrolledbottomingofthesuspensionaswellaspreventinginternaldamagewithinthedamperfrommetal-to-metalcontact.Betweenracesitisgoodpracticetoinspectthebumprubbers.Iftheyshowsignsofdeterioration,theyshouldbereplaced.

Bump Stop Graph A = load at damper mount when car bottoms without a bump stop

B = force required to keep car from bottoming

C = point of contact at the bump stop

D = point of bottoming

COIL-OVERSPRINGCONVERSIONKITSManydifferenttypesofcoil-overset-upscanbeacheivedbyusingthevari-etyofhardwareTruechoicehasavailable.

BUMP RUBBERS & PACKERSSUSPENSION TUNING KITAnotheroften-overlooked,buteasytoutilize,suspensiontuningoptioncombinesKonibumprubbersandpolyurethanepackers.Whenusedeffectively,theywillpreventthecarfrombottomingwithouthavingtoincreasethespringrateand:

• Help limit roll • Provide stability under braking • Hold turn-in • Easy-to-install • Fits all shock shaft sizes

SPHERICAL EYE BEARING UPGRADEThestandardKONIsphericaleyebearingisatwopiecemetal-to-metalbearingwhichhasquiteanamountofnor-malplay“evenwhennew.”Athree-piecelinedbearingwillincreaselifeofthebearing,reduceharshnessandimproverepeatabilityoftheshockperformance.7/8”O.D.-1/2”I.D. $30.00 each1”O.D.-1/2”I.D. $32.00 each Staked bearings also available.

Left: Top hat bushing. Right: Spherical eye bearings

CONICAL SPRING SEATMadeof6061MachinedAluminumanddesignedtomovespring1.25”furtherfromtopeyeforclearance.Fits21/4”or21/2”(withadapter)springs.Part # KONConical Spring SeatPrice $75.00 each

Standard

Deluxe

SPRING SEAT SPACER!”deepspringspacer,fits2.25”or2.5”I.D.springs.Madeof6061machinedaluminum.

Part # KONSeat Spacer Price $45.00 each

SPANNER WRENCHESStandardWrench.Makesadjusting coiloverseasy.Workswithmost coiloversetups.Part # KONZ902-$9.95DeluxeCoil-overshockadjustingtool.Workswithanycoil-overshocksthatuseuptoa31/4”diameteradjust-ingnut.CaststeelHandle.Makesbetween-roundadjustmentsasnap.Part # KONC2760-$24.75

PART NUMBER DESCRIPTION PRICEKON70.34.05.000.0 45mmLongLinearSoftfor12mmRod $34.70KON15.34.20.000.0 55mmLongProgressiveSoftfor12mmRod $21.90KON72.34.48.000.0 25mmLongLinearSoftfor14mmRod $20.50KON71.34.42.000.0 40mmLongProgressiveHardfor14mmRod $17.15KON71.34.80.000.0 10mmLongProgressiveHardfor2812series $14.40KON71.34.92.000.0 40mmLongProgressiveHardfor2816/17series $29.35KON70.34.54.000.0 40mmLongProgressiveSoftfor16-20mmRod $26.49KON70.34.53.000.0 55mmLongProgressiveSoftfor16-20mmRod $21.90KON70.34.95.000.0 55mmLongProgressiveSoftfor22-24mmRod $22.70KON15.34.62.000.0 .125”ThickPlasticPackerKitof10 (Splitforeaseofinstallation) $26.50KON15.29.04.003.0 Nylon2.25”to2.5”SpringAdapter $2.95

50mmIDSteelSleevew/55mmx2ODThreads Part # KONMO55x2x150 $80.00 55mmIDSteelSleevew/60mmx1.25ODThreads Part # KONMO60x1.25x150 $101.00 55mmSteelSpringSeatfor2.25”Springs Part # KON3012.29.128 $16.95 55mmLockRing Part # KON71.29.13.008.0 $22.70 55mmAluminumLockRing Part # KON71.29.13.011 $45.00 55mmAluminumSpringSeatfor2.25”Springs Part # KON71.29.11.043.0 $60.90 55mmAnodizedSilverSpringSeatfor2.5”Springs Part # KON8212.29.129 $25.95 55mmAnodizedSilverThickLockRing Part # KON8212.29.001 $25.95 60mmSteelSpringSeatfor2.5”Springs Part # KON70.29.11.153.0 $55.00 60mmSteelLockRing Part # KON70.29.13.012.0 $37.60 UpperSeat-2.5”Flat Part # KON70.29.01.119.0 $57.90 UpperSeat-2.25”Flat Part # KON70.29.01.121.0 $41.00

50mmCoilOverKitincludingbelow4items Part # KON30.0000 $75.00 50mmIDAluminumSleeve2.5”SpringsOnly Part # KON30.0000.0005 $28.00 LowerSpringPerchwithLockingSetScrew Part # KON30.0000.0006 $23.45 UpperConicalSpringSeat2.5”Springs Part # KON30.0000.0010 $22.00 SnapRingforUpperPerch Part # KON30.0000.0009 $2.50

42mmIDCoilOverKitIncludingSleeve,LowerSpringPerchwithLockingSetScrewand25mmTall UpperSpringPerchfor2.25”Springs Part # KON80.0000.1 $76.50

42mmIDCoilOverKitIncludingSleeve,LowerSpringPerchwithLockingSetScrewand40mmTall UpperSpringPerchfor2.25”Springs Part # KON80.0000.2 $76.50

42mmIDaluminumSleeve Part# KON80.0000.0005 $27.65 25mmTallUpperSpringPerchfor2.25”Springs Part# KON80.0000.0007 $22.50 40mmTallUpperSpringPerchfor2.25” Part# KON80.0000.0008 $22.50 LowerSpringPerchwithSet-screw Part# KON80.0000.0006 $24.25

2.0”SpringSeatBearing Part # KONSSB200 Each $16.00 2.0”SpringSeatWasher Part # KONSSW200 Each $6.00 2.25”SpringSeatBearing Part # KONSSB225 Each $16.00 2.25”SpringSeatWasher Part # KONSSW225 Each $6.00 2.50”SpringSeatBearing Part # KONSSB250 Each $16.00 2.50”SpringSeatWasher Part # KONSSW250 Each $6.00

SHOCK EYE BEARING “TOP HAT BUSH”Semi-finishedinmildsteel.Bore(B”)andflange(F”)mustbemachinedtosuitapplication-$2.45 eaFinishedtosuityourapplication=$5.25 ea.

Custom bushings are available - P.O.A.


11

KONI SHOCK SERVICE - SUSPENSION

12

Spring Testing ServiceAllspringsshouldbetestedonaregularbasistochecktheirintegrity.TRUECHOICEwillperformthisserviceusingourmoderntestingequipment.

Dyno TestingWeoperateashockabsorberdynamometertomeasureandevaluateanumberofperformanceparameters.Theonlywayyoucangaugetheconditionofyourshockabsorbersistodynotest.

A TRUECHOICE KONI shock service technician will place your shock on our KONI Shock dynamometer, testing the bump and rebound. The machine plots out the shock’s response on a graph (above) to have a visual record of the shock’s performance. This graph is of a 2812 double-adjust-able shock and illustrates the range of adjustment in both bump and rebound.

NEW KONI SHOCK ABSORBERSTRUECHOICEcanserviceorcustomizeshockabsorberstoyourspecifications.Generally,wecanassessyourrequirementsbydiscussingafewsimplepointswithyouoverthephoneorbyFAX.Weurgeyoutocallanddiscussallofyourrequirementswithourtechnicians,whetherfornewcarapplications,restorations,updates,orreplacements.

RESTORATIONSVintagestreetandracingshockscanberefurbishedtolike-newconditions,includingpaintanddecals.Completecareistakentorestoretheseshockstotheiroriginalspecifications.

SHOWROOM STOCK RACINGWecanconvertmostKONIshockstoSPSS(showroomstock)valving.InadditionwecanconvertKONIstrutstobedoubleadjustable—externallyadjustableinbothcompressionandrebound.

KONI SHOCKS FOR MANY ONE OFF CONVERSIONS, CUSTOM PROTOTYPES AND OTHER SPECIAL APPLICATIONS• Custom Housings, Mountings and Configurations — Bushing Eye, Pin Top, Spherical Bearings, etc.• Special Valving — Double and Single adjustment, Monotube High-pressure Gas & Twin-tube Hydraulic.• Coil-over Conversions & Springs

ServiceKONIShockAbsorbers,inmostcases,arefullyrebuildable.Likeanycomponentwithmovingparts,thereisamaintenancefactorinvolved.Allshockabsorbersshouldbecheckedandservicedifnecessaryonaregularbasistoensureoptimumperformancethroughoutanevent.TRUECHOICEstocksallofthenecessarypartsandequipmenttokeepyourKONIShockAbsorbersinwinningcondition.

Revalve ServiceItisvitalthatthedampingrateoftheshockabsorberbeinharmonywiththespringrateandunsprungmassofthevehicleonwhatevertrackyouareracing.TRUECHOICEwillrecommendsettingsandrevalveyourshockabsorberstosuitallapplications(notavailableonallseriesofshockabsorbers).

TRUECHOICE is an authorized KONI racing distributor and service center. Our KONI factory-trained technicians are able to provide a wide range of services, including:

COMPLETE KONISERVICE DEPARTMENT

Suspension Engineering ServicesShockabsorbersaretheheartofanyracecar’ssuspensionsystem!Truechoice/KONIRacingServicesisanengineeringservicedesignedtohelpassistyouingettingthemostoutofyourinvestmentinKONIracingshockabsorbers.Wecantailoraspecialprogramtoencompassracecarsetup,testingandanalysis.KONIracingshockdevelopment,racecarengineeringanddataanalysisservicesandavailableequipmentwillvarybasedongeographicallocation.Pleasecalltodiscussyourspecificneedforspeed.Remember,thereisalwaysalotofhorsepowerhidinginchassisdevelopment!

Rebuild or Series Revalve (ea)

2822,2816,2817 $170.00

2812, $140.00

30SP8 $140.00

3011,3012 $140.00

30 $140.00

8010 $140.00

8040,8240 $140.00

8042 $170.00

8041,8241 $140.00

82 $140.00

8210,8211,8212 $170.00

8216 $140.00

8246(ElectricDragShock) $170.00

86 $140.00

8610,8611 $170.00

87 $170.00

8741 $170.00

8742 $170.00

ServiceOther Shock Services Price

MechanicalDyno $30.00ComputerDyno $45.00RecalibrateDouble Adjustable $40.00Restoration $200.00RebuildWetKit $155.00FabricateWetKit P.O.A.ConverttoExternal ReboundAdj. P.O.A. Convert8741to DoubleAdj.(NEW) P.O.A.Convert8741todbl.adj. -includesrevalving P.O.A.RemoveorRefitSpring $30.00TestSpring (removedfromshock) $20.00Labor(PerHour) $95.00Allpricesincludepainting.Pricesdonotincludereplacementparts.Pleaseshipshockswithouthardware.

(P.O.A. Price based on application)

FRONT REAR

Style A - B* - C* - D*

Coil-Over or Non Coil-Over (CO/NCO)

Single or Double Adjustable (SA/DA)

Gas or Non-Gas (G/NG)

Body Material - Steel or Aluminum (ST/AL)

Max Suspension Length - Eye to Eye

Min Suspension Length - Eye to Eye

Body Length

Spring I.D. (1.88” - 2.0” - 2.25” - 2.5”)

Motion Ratio

Spring Rate Range To To

Bump Adjuster Position - NA on 3011/12 (See Fig. 1&2)

Rebound Window Position (See Fig 3&4)

Car Make Model Year

* When selecting styles B, C, or D, please provide detailed dimensions for mounting pin(s).

ATTENTION:PREP SHOPS,

JOBBERS,INSTALLERS,

TUNERS,SPEED SHOPSTRUECHOICEispleasedtoofferourtradecustomersaspecialprogramfortheresaleofKoniRacingShocks.Thisprogram,alongwithourtechnicalassistanceprogram,willprovideaprofitableperformancegainforyourbusiness.

Pleasenote,thecustomermustsignoffonthisspecificationsheetbeforeTruechoicewillbuildormodifyanyshockabsorbers.Anychangesmadebythecustomer,Truechoicewillrecognizeasthecustomersrequesteddimensions.,andbuildormodifytheshockabsorbertothelisteddimensions.Thecustomerwillberesponsibleforthedimensionsoncetheyhavesignedoffonthisspecificationsheet.Pleasecalluswithanyquestions.1-800-388-8783

NAME SIGNATURE DATE

KONI SHOCK PARTS - SUSPENSION

13

Combining technology from the world’s leading manufacturers of suspension components, along with years of racing-bred suspension knowledge, Truechoice has developed a Suspension Solution for all phases of street, sport and competition driving. What racing background? How about the hot GrandAm Koni Challenge Series as our ultimate proving ground, and a host of happy winners contesting many SCCA and vintage race car competitions, with cars utilizing Truechoice, Koni shock and Eibach spring technology. We do stand by our performance record!

Therearemanyconsiderationstoevaluatewhenchoosingaperformancepackageforastreet-basedcar.Tohelpyourdecisionofhowradicalasuspensionmodificationyoushouldmakebaseduponwhattypeofdrivingandorracingyouwillbeperforming,TruechoiceSuspensionSolutionsarebrokendownintodifferentphases.Eachphaseisbasedonthebestcomponentsforthatlevelofperformanceandactsasastartingpointfromwhichyoucanbuildintothenextphaseifdesired.

StandardKoniSportshocksarebackedbyKoni’sFactorywarranty.Inmostcases,KoniSportshockscanberebuiltandrevalvedatTruechoice.Ourfactory-trainedtechniciansandsuspensionspecialistshavetheknowledgeandtheexpertisetoensurethatyouarriveatthebestsolutionforthelevelofperformanceyouareseekingforyourcar.

KoniSportShocksaredesignedforaggressivedrivingwhilecontinuingtoofferdrivingcomfort.TheKoniSportShocksaremanufacturedtoactasanupgradeunitformanystockapplications.AlloftheKoniSportShocksofferadjustabilityinreboundandsomemodelsofferadjustabilityinbothbumpcompressionandrebound.

EibachPro-KitandSportlineperformancespringsaredesignedtoimprovethelooksandhandlingofproductioncars.Pro-Kitspringsaredesignedtolowercarsanywherefrom.75”to1.5”,toprovidetheultimatebalanceofcomfortandhandling.Sportlinespringsofferanincreaseddropfrom1.5”to2”,oraslowasyoucansafelygoonastreetcar,addinganaggressivelevelofridecomfortandhandling.FormoreinformationonEibachPro-KitsandSportlinesprings,seetheEibachproductpagesinthiscatalog.

PERFORMANCE SUSPENSION KITS

14

Top Photo:ThehotHondaCivichatchbackisequippedwithaSuspensionSolu-tionsPhase2kit,allowingaggressivestreetdrivingandfunatdrivingschools..Middle Photo:ThisbeautifulRX7isequippedwithaTRUECHOICESuspensionSolutionsPhase3kit.Thedouble-adjustabilityallowsthedrivertotuneforalleventsandconditions.Bottom Photo:ThetechnologyforyourPhaseKitstartswiththetechnologyTruechoicelearnsattheracetrack.ReadmoreabouttheUnitechRacingNissan350ZcarsonthemainKoniShockproductsintroductionpageatthefrontofthiscatalog.


Photo Guide to Suspension SolutionsAsaguidethroughthedifferentphasesofourSuspensionSolutions,wehaveselectedtwopopularstreetcarsfordemonstrationpurposes—AnAudiA4andaHondaCivic(applicabletoseveralmodelsandyearsofCivics).Thephotographsoverthenextfourpageswillillustratethechangesthefourdifferentphasesmaketotheshock/springpackages.

ThephotosonatthetopofthispagearethePhase 1 Audi A4 Kit.(Fromlefttoright):Koni’sAudiA4frontsportshock,AudiA4Konirearsportshocks,andAudiA4EibachPro-Kitsprings.

ThephotosbelowareofthePhase 1 Honda Civic Kit.(Fromlefttoright)HondaCivicKonirearsportshocks,HondaCivicKonifrontsportshocks,andHondaCivicEibachPro-Kitsprings.

Improved Street PerformanceUtilizingKoniSportShocksand EibachPro-KitorSportlineSprings.

Phase One Features:

• Lowersvehicle.75”to2”(dependingon EibachProKitorSportlinesprings)— improvingcar’slooksandperformance. YougetaTouringCarlook“outofabox”.

• Lowercenterofgravityreduces“body roll”inturns,“squat”underacceleration and“dive”underbraking.

•Doesnotcompromisefactory“ride” qualitywhenusingEibachPro-Kit progressivespringsandKoniSportShock technology.EibachSportlinesprings createamoreaggressiveridequality.

•KoniSportShockadjustablerebound allowsdrivertotuneshockforvarying drivingconditions.See Page 21 for Suspension Solutions Pricing.

15

Street Performance, Autocross & DragUtilizingKoniSportShockwithCoil-overKitandEibachERSSpringSystem.

Phase Two Features:

•Adjustablerideheightimproveslooks andperformance.

•Adjustablecornerweightsallowsdriver tooptimizechassisbalance.

•AdjustableSportShockvalvingcanbe tunedforstreetorcompetitionand varyingspringrates.

•Multiplespringsavailableforstreet andcompetitioninbothlinearand progressivetypes.

•Lowercenterofgravityreduces“body roll”inturns,“squat”underacceleration and“dive”underbraking.

• Reductionofaerodynamicdragand improvedfueleconomy.

See Page 21 for Suspension Solutions Pricing.

Phase Two+ShockAbsorberShorteningSolutionformaximumloweringwithoutcompromisingshockabsorbertravel.Ifyouplanonloweringyourvehicleinexcessoftwoinchesfromstockrideheightthisisanessentialmodificationtopreventshockabsorberbottomingandsuspensiondamage.PicturedareanAudiA4frontshock(farleft)andaHondafrontshock(right).

Price-Phase2+$165.00 per shockwhichincludesacompetitionbumprubber.

Photo Guide to Suspension SolutionsThephotosaboveareTRUECHOICESuspension Solution Phase 2 kits.FromlefttorightareAudiA4frontshock,AudiA4rearshock,HondaCivicfrontshockandaHondaCivicrearshock.


16


Photo Guide to Suspension SolutionsThephotosontheleftsideofthispageareTRUECHOICESuspension Solution Phase 3 kits.FromlefttorightareAudiA4frontshock,AudiA4rearshock,HondaCivicfrontshockandaHondaCivicrearshock.

Competition & StreetUtilizingKoniExternallyDouble-adjustableSportShockswithCoil-overKit andEibachERSSpringSystem.

Phase Three Features:

•AllfeaturesofPhaseTwosolution

Plus:

•Independentadjustmentforboth compressionandrebounddamping.

•Thewiderangeofshockdamping adjustabilityisidealfortuningtoalltypes oftrackconditions—orfromstreettotrack withtheturnofascrewdriver.

• Shocksarerebuildableandrevalvablefor allapplications.

See Page 21 for Suspension Solutions Pricing.

17

NEW! Nissan 350 Z Phase 3 Solutions Kit.

Competition OnlyFeaturingspeciallyshortenedandmodifiedKoniExternallyDouble-adjustableShockswithracevalving,Coil-overKitandEibachERSandTenderspringcombination.

Phase Four Features: • AllofthefeaturesofPhaseTwoandThreesolutionPlus: •Optionalmultipleprogressiveandlinearspringrates*for allconditions•KoniRaceDampertechnology,speciallyshortenedfor ultimatechassistuning.•SpecialKoniDamperconstructionforultimatelow rideheight.•Adaptedtocompetitioncamberplatesandspring mountinghardware.*At an additional cost. See Page 21 for Pricing.

Phase 5?!WhathappenswhenyouwantsomethingbeyondaTruechoicePhase4SuspensionSolution.Well,this!Theultimatecompetitionpackage!AViperGTSPhase5SolutionutilizingKoni2812RacingShockTechnolo-gyandspeciallyfabricatedshockmountinghardware.Yourmindandcheckbookareouronlylimits.Anotherexample,thebeautifulHondaCivicPhase5kitbelow,minustheEibachspringsset.


18

Photo Guide to Suspension SolutionsThephotosontheleftsideofthispageareTRUECHOICESuspension Solution Phase 4 kits.FromlefttorightareAudiA4frontshock,AudiA4rearshock,HondaCivicfrontshockandaHondaCivicrearshock.

THE ULIMATE CIVIC SHOCK!TherealworkingsofthisPhase5Civickitarethesebeautifulshocks!SoheretheyarebeforeweloadedtheEibachSpringSet.

19

Nissan 350Z Phase 4 Suspension SolutionThistracktestedpackageincludesspeciallyvalvedandshortenedKonidoubleexternallyadjustableshockswithmatchedspringstosuitallstreetandtrackconditions.Therideheightisalsofully adjustablefrontandrear.

Complete Kit $3250.00

SUGGESTED ADJUSTMENT PROCEDURE FOR ROAD COURSE USEADJUSTING THE BUMP DAMPING CONTROLBumpdamping controls the unsprungweight of the vehicle (wheels, axles, etc.) It controls the upwardmovementofthesuspensionaswhenhittingabumpinthetrack.Itshouldnotbeusedtocontroldownwardmovementofthevehiclewhenitencountersdips.Also,itshouldnotbeusedtocontrolrollorbottoming.Dependingonthevehicle,theidealbumpsettingcanoccuratanypointwithintheadjustmentrange.Thisset-tingwillbereachedwhen“side-hop”or“walking”inabumpyturnisminimalandtherideisnotuncomfortablyharsh.Atanypointotherthanthisidealsetting,the‘side-hopping’conditionwillbemorepronouncedandtheridemaybetooharsh.STEP1:Setallfourdampersonminimumbumpandminimumreboundsettings.STEP2:Driveoneortwolapstogetthefeelofthecar.NOTE:Whendrivingthecarduringthebumpadjustmentphase,disregardbodyleanorrollandconcentratesolelyonhowthecarfeelsoverbumps.Also,trytonoticeifthecar“walks”or“side-hops”onaroughturn.STEP3:Increasebumpadjustmentclockwise3clicksonallfourdampers.Drivethecaroneortwolaps.RepeatStep3untilapointisreachedwherethecarstartstofeelhardoverbumpysurfaces.STEP4:Backoffthebumpadjustmenttwoclicks.Thebumpcontrolisnowset.NOTE:Thebackoffpointwillprobablybereachedsoonerononeendofthevehiclethantheother.Ifthisoccurs,keepincreasingthebumponthesoftenduntilit,too,feelshard.Thenbackitoff2clicks.Thebumpcontrolisnowset.ADJUSTING THE REBOUND DAMPING CONTROLOnceyouhavefoundwhatyoufeeltobethebestbumpsettingonallfourwheels,youarenowreadytoproceedwithadjustingtherebound.Theprimaryfunctionofrebounddampingistocontrolorslowdowntheundesir-ableoscillationsofthespringortorquetube.Therebounddampingcontrolsthetransitionalroll(lean)aswhenenteringaturn.Itshouldbenotedthattoomuchreboundoneitherendofthevehiclewillcauseaninitiallossoflateralaccelera-tion(corneringpower)atthatendwhichwillcausethevehicletooversteerorundersteerexcessivelywhenenter-ingaturn.Itdoesnotlimitthetotalamountofroll;itdoeslimithowfastthistotalrollangleisachieved.Howmuchthevehicleactuallyleansisdeterminedbyotherthingssuchasspringrate,swaybars,rollcenterheights,etc.Toomuchreboundcontrolinrelationtospringratewillcauseaconditionknownas“jackingdown.”Thisisaconditionwhere,afterhittingabumpandcompressingthespring,thedamperdoesnotallowthespringtoreturntoaneutralpositionbeforethenextbumpisencountered.Thisrepeatswitheachsubsequentbumpuntilthecarisactuallyloweredontothebumpstops.Contactwiththebumpstopscausesadrasticincreaseinrollstiffness.Ifthisconditionoccursonthefront,thecarwillundersteer;ifitoccursontherear,thecarwilloversteer.STEP1:Withthereboundsetonfullsoftandthebumpcontrolsetfromyourtesting,drivethecaroneortwolaps.Payingattentiontohowthecarrollswhenenteringaturn.STEP2:Increaserebounddampingthreesweepsonallfourdampersanddrivethecaroneortwolaps.RepeatStep2untilthecarenterstheturnssmoothly(nodrasticattitudechanges)andwithoutleaningexcessively.Anyincreaseinthereboundstiffnessbeyondthispointisunnecessaryandmayinfactbedetrimental.EXCEPTION:Itmaybedesirabletohaveacarthatassumesanoversteeringorundersteeringattitudewhenenter-ingaturn.Thispreference,ofcourse,willvaryfromonedrivertoanotherdependingonindividualdrivingstyle.

PERFORMANCE SUSPENSION KITSSHOCK SETUP TECH TIP SHOCK SETUP TECH TIP SHOCK SETUP

ROAD RACING/AUTOCROSS SHOCK ADJUSTMENT TROUBLE SHOOTING GUIDEThefollowingisaguidetotrytofixhandlingproblemsAFTERthecar’sinitialsetuphasalreadybeenfound.FRONT:REBOUNDSettingistoofirm-Cancausethecarto“jackdown”whichcancausethedrivertothinkthecaristoofirmincompression.Canalsocausealackingripfromthetirenotseparatingfromthechassisfastenoughandcausethecartoundersteer.Settingistoosoft-Thoughasoftre-boundsettingwillallowbettercompliancewiththeroad,thecarmayfeelfloatyorexcessivelyoscillateafterhittingbumps.FRONT:COMPRESSIONSettingistoofirm-Cancausethecartofeelskittishandlosegripoverroughsectionsofpavement.Cancauseoutsidetiretobeloadedtooquickly.Thecarwon’tstabilizeinaturn.SettingistoSoft-Cancauseacornerentryundersteer.Canpossiblycauseexcessivesuspensionmovement.REAR:REBOUNDSettingistoofirm-Cancauseasnapoversteeroncornerentryfromrear tires losingcontactonbumps.Canalsocause thecar to“jackdown”intherearandlosegrip.Settingistoosoft-Cancauseacor-nerentryoversteerandcornerexitoversteer.Vehiclemayfeelfloatyorexcessivelyoscillateafterhittingbumps.REAR:COMPRESSIONSettingistoofirm-Cancausethecartohaveasnapoversteer,espe-ciallyonmid-cornerbumps.Carwon’tfeelstableinturnandskittishonroughpavement.Settingistoosoft-Cancausecornerexitundersteerandpossibleexcessivesuspensionmovement.

SHOCK ADJUSTMENT TROUBLE SHOOTING GUIDE NOTES:1.When changing to firmer springs, theshocksusuallyneedtobesetfirmerforre-boundandsofterforcompressiondamping2. On rainy or slick tracks, softening thecompressiondampingwillhelptodelayini-tialloadingonthetirewhichincreasesgrip.This is a guide for Shock Setup only. Other factors such as the spring rates, sway bars, alignement and tire pressures will also have an af-fect on thr handling of the vehicle.

SPHERICAL BEARING-MOUNTING AND CAMBER PLATE GUIDEFor applications that use an upper spherical bearing mount or cam-ber plate, please check the follow-ing points for adequate clearance through the entire range of sus-pension travel.• Make certain that the mounting hard-waredoesnotcontact theouterbearingraceorthehousingthatretainsthebear-ing.Themountinghardwareincludesanynut, washer or spacers that are used tolocatethemountingpininthebearing.•Makecertain that theretainingclipforthebearingdoesnotcontactthepistonrodshoulderormountinghardware.


Price $325.00each(unitonly)Truechoicecaninstallthisinsertinyourstruthousingfromaslittleas$75.00ea.Pleasecallforspecificpricingforyourapplicationandcoiloverconversions.Popularapplications:MazdaRX7-generation2on,VWGolf,Jetta,andScirocco,Porsche944andlate911,DodgeNeon,LotusElanetc.Truechoicecanadaptthisunittomoststruthousingsprovidedthattheinsidetubediameterisatleast44mmandthebottomofthestrutassemblyisaccessiblewhenfittedinthevehicle.Pleaserefertothemeasurementtableonthispage.

“IT” Improved Touring External, Double-Adjustable Solution.

MAX MIN “A” BODY “D” Part Number LENGTH LENGTH LENGTH DIAMETER

KON8611-1256 Race 20.47 14.96 12.09 1.79

KON8611-1257 Race 19.69 14.06 11.42 1.77

KON8611-1258 Race 24.21 17.99 15.32 1.77

Factory OEM Double- Adjustable KONI Shocks!Koniexternally,double-adjustablefactoryOEMreplacementshocksandstruts.IdealforstreetandracingclassesthatrequireOEMtypeshocks.Chevrolet Camaro 93-98Front Part # KON8242-1005 SP1 $475.00 ea.Rear Part # KON8242-1006 SP1 $365.00 ea.Ford Mustang 94-98Front Part # KON8742-1122 Sport $370.00 ea.Rear Part # KON8042-1134 Sport $330.00 ea.Ford Mustang 87-93Exc.CobraRFront Part # KON8742-1121 Sport $370.00 ea.Rear Part # KON8042-1026 Sport $350.00 ea.Pontiac Firebird 93-98 Front Part # KON8242-1005 SP1 $475.00 ea.

20

TheabovegraphillustratestheenhancedridecontrolandadjustmentrangeavailableonlywithTRUECHOICE/KONISuspensionSolutions—allowingonepackagetobetunedforalldrivingconditions.

8041RACE SeriesBolt-in Applications

Part # Body Part # Body Application Year Front Shortened Rear Shortened

AccuraIntegra 94-01 8041 1152 RACE 26mm 8041 1153 Race 16mm

HondaCivic* 88-91 8041 1166 RACE 25mm 8041 1153 Race 16mm

HondaCivic 92-95 8041 1152 RACE 26mm 8041 1153 Race 16mm

HondaCivic 96-00 8041 1152 RACE 26mm 8041 1213 Race 15mm

HondaCRX 88-91 8041 1166 RACE 25mm 8041 1153 Race 16mm

HondaDelSol 92-95 8041 1152 RACE 26mm 8041 1153 Race 16mm

MazdaMiata 89-97 8041 1203 RACE 26mm 8041 1204 Race 16mm

TheRACEseriesdampersaredesignedasabolt-inapplicationforthoserunningeitherinhighperformancedrivingevents,roadracingorautocross.Theyareexternallyadjustableinrebounddampingandcanbeadjustedonthecar.Theyaredesignedtoworkwiththeextremehigh-performancespringratesupto1000lbs.withcoil-oversleevesetups.TheseshockscomewithfactorystyleperchesbutwillalsoworkwithKonicoil-oversleevesystemsseenelsewhereinthiscatalog.

Also,theseshockshavebeenshortenedtogiveadditionaltravelinthesuspensiontoworkwiththeloweredrideheights.Thisgivesthedampersadditionaltravelandkeepsthecarfrombottomingout.Themeasurementgiveninthetablebelowistheamounttheshocksaremadecomparedwiththefactorylengthdampers.

All 8041 RACE Series Shocks - $250.00 Each

21

PLEASE NOTE:PhaseFourpricedoesnotincludetendersprings.Add$70.00perlinear,$94.00perpro-gressiveand$24.00perspacer,foreachcornerofcar.Pricealsodoesnotincludehelperspring.Add$40.00percorner,ifapplicable.

TRUECHOICE understands that Suspension Solutions is a serious investment in your car’s performance. TRUECHOICEtechnicianswillbehappytodiscussspringratesandshockvalvingalongwiththecompletepackageforeachspecificapplication.

Allinstallationsmustbedonebyaqualifiedprofessional.

Acomprehensivewheelalignmentmustbeperformedafterallinstallations.

WARRANTY.Therearenowarranties,writtenororal,expressedorimplied,madetothepurchaser.Weassumenoliabilityorresponsibilityforequipmentfailureorthesuitabilityofanyproductorserviceprovided.


ACURA Integra 94-01 PhaseI $980.00 PhaseII $1286.00 PhaseIII $2146.00 PhaseIV $2466.00

ACURA Integra 90-93 PhaseI $1008.00 PhaseII $1314.00 PhaseIII $2175.00 PhaseIV $2495.00

ACURA Integra Type R 97-01 PhaseI $917.00 PhaseII $1223.00 PhaseIII $2942.00 PhaseIV $3263.00

AUDI A4 FWD 95-01 PhaseI $847.00** PhaseII $1900.00*** PhaseIII $2856.00* PhaseIV $3226.00* *Rearuppercontrolarmswillneed modified.Pricecanbequotedwith newcontrolarms. **Compresstoadjustshocksfront andrear.

AUDI A4 A4 AWD 95-01 PhaseI $1030.00** PhaseII $2050.00*** PhaseIII $3013.00* PhaseIV $3382.00* *Rearuppercontrolarmswillneed modified.Pricecanbequotedwith newcontrolarms. **Frontshocksarecompresstoadjust.

BMW 325/328 92-01 PhaseI $1018.00 PhaseII $1123.00* PhaseIII $1633.00* PhaseIV $1848.00* *PhaseII-IVislistedasfrontsonly. Forrearapplicationspleasecallfor aquote.

CHEVROLET Camaro 93-01 PhaseI $1207.00 PhaseII $1794.00 PhaseIII $2645.00 PhaseIV $2820.00

CHEVROLET Camaro 82-92 PhaseI $986.00 PhaseII $1206.00* PhaseIII $1818.00* PhaseIV $2126.00* *Frontsonly,rearshockscanbeadded atacostof$101.43ea.Rearshocks cannotbemadetocoilover.

DODGENeon 95-01 PhaseI $1147.00 PhaseII $1878.00 PhaseIII $2806.00 PhaseIV $2990.00

FORDContour (Incl. SVT) 98-01 PhaseI $1064.00 PhaseII $1929.00 PhaseIII $2858.00 PhaseIV $3043.00

FORD Focus 99-01 PhaseI $1042.00 PhaseII $1617.00 PhaseIII $2557.00 PhaseIV $2779.00

FORD Mustang 94-01 (ExclIRS) PhaseI $1172.00 PhaseII $1798.00 PhaseIII $2720.00 PhaseIV $2957.00

FORD Mustang 87-93 8 cyl. (Excl.CobraR) PhaseI $1172.00 PhaseII $1798.00 PhaseIII $2720.00 PhaseIV $2957.00

HONDAAccord 90-97 PhaseI $967.00 PhaseII $1285.00 PhaseIII $2209.00 PhaseIV $2394.00

HONDA Civic 01-02 PhaseI $995.00 PhaseII N/A PhaseIII N/A PhaseIV N/A

HONDA Civic 96-00 PhaseI $995.00 PhaseII $1285.00 PhaseIII $2209.00 PhaseIV $2394.00



HONDA Prelude 97-00 PhaseI $995.00 PhaseII $1312.00 PhaseIII $2237.00 PhaseIV $2393.00

HONDA S-2000 00-01 PhaseI $1082.00 PhaseII $1359.00 PhaseIII $2286.00 PhaseIV $2606.00

HONDA Prelude 92-96 PhaseI $995.00 PhaseII $1285.00 PhaseIII $2209.00 PhaseIV $2394.00

MINI Cooper, S 2003 > PhaseI $1030.00 PhaseII $1344.00 PhaseIII $2078.00 PhaseIV $2576.00

MAZDAMiata 98-01 PhaseI $995.00 PhaseII $1382.00 PhaseIII $2286.00 PhaseIV $2458.00

MAZDA Miata 89-97 PhaseI $842.00 PhaseII $1511.00 PhaseIII $2445.00 PhaseIV $2697.00

MAZDA RX-7 93-96 PhaseI $996.00 PhaseII $1511.00 PhaseIII $2445.00 PhaseIV $2697.00

NISSAN 200SX/SER 95-99 PhaseI $794.00 PhaseII $1882.00 PhaseIII $2834.00 PhaseIV $3456.00

Nissan 350Z 2003 > PhaseI $1204.00 PhaseII $1792.00 PhaseIII $2576.00 PhaseIV $3250.00

MITSUBISHI Eclipse 95-99 FWD & AWD PhaseI $972.00 PhaseII $1558.00 PhaseIII $2430.00 PhaseIV $2751.00

PONTIACFirebird 93-01 PhaseI $1207.00 PhaseII $1794.00 PhaseIII $2645.00 PhaseIV $2820.00

Subaru WRX 2002 > PhaseI $1064.00 PhaseII $1568.00 PhaseIII $2688.00 PhaseIV $2912.00

TOYOTA Celica GT/GTS 00-01 PhaseI $971.00 PhaseII $1947.00 PhaseIII $2902.00 PhaseIV $3395.00 PhaseVCompetitionkitavailable

TOYOTA MR-2 Spyder 01 PhaseI $971.00 PhaseII $1999.00 PhaseIII $2957.00 PhaseIV $3450.00

TOYOTASupra 93-98 PhaseI $968.00 PhaseII $1471.00 PhaseIII N/A PhaseIV N/APhase5Competitionkitavailable.Callforquote.

VOLKSWAGEN Golf III & Jetta III 93-98 4cyl. & VR6 PhaseI $1002.00 PhaseII $1588.00 PhaseIII $2434.00 PhaseIV $2619.00

VOLKSWAGEN Golf & Jetta 90-92 PhaseI $992.00 PhaseII $1579.00 PhaseIII $2424.00 PhaseIV $2608.00

VOLKSWAGEN New Golf, Jetta, Beetle IV 99-00 PhaseI $983.00 PhaseII $1623.00 PhaseIII $2647.00 PhaseIV $2831.00

KONI Threaded Suspension Kits include four KONI Sport-valved struts and/or shocks featuring threaded, adjustable, lower spring perches (where applicable) and progressive rate, lowering springs designed for per-formance street driving. The kits are engineered in a joint effort with KONI divisions in Holland, Germany, and North America. Testing of the kits was done on the famed, high-speed German Autobahns.These kits were designed to give the vehicle a preferred ride height of 1.5” to 2.0” below stock, but the threading range allows the owner to make the ride height considerably higher or lower. Additionally, the car can be run low in the summer and then raised for winter driving. It is always recommended that the kits be installed with bump rubbers because the threaded range of perch adjustment may allow the vehicle to sit low enough (for show or display purposes) to risk bottoming the shock’s internal parts without them. Also, care should be taken in setting ride height so as to not allow oversized rims and tires to rub on the car’s inner fender, etc.


ACURA Integra(exc.TypeR) 1994-01 H,E,G H,E,G KON1150-5006-1 $1,043.70

AUDI A4FWD&Quattro 2002-04 H,G H,G KON1150-5061 $1,043.70 A4FWD4&6cyl. 1995-6/00 H H, KON1150-5020 $1,043.70 A4Quattro4&6cyl. 1995-01 H H,E KON1150-5019 $1,043.70 A6FWD4cyl. 1998-04 H G KON1150-5015 $1,043.70 A6FWD6cyl. 1998-04 H G KON1150-5016 $1,043.70 TTFWD 2000-04 H,E H KON1150-5058 $1,117.20 TTQuattro 2001-04 H,E H KON1150-5057 $1,190.70

BMW 318Ti(E36) 1994-99 H,E G KON1150-5025 $1,271.55 325i,328i,E36coupe&sedan 1990-99 H,E H,G KON1150-5069 $1,271.55 325i,328i,330i,E46coupe&sedan(Exc.Xi) 2000-04 H,E H,G KON1150-5045 $1,271.55 M3(E36) 1995-99 H,E G KON1150-5023 $1,271.55 Z3(Exc.MSeries) 1996-02 H,E G KON1150-5029 $1,271.55

FORD FocusSedan/Hatchback 1998-04 H,E,G H,G KON1150-5077 $1,043.70 FocusWagon 1998-04 H,E,G H,G KON1150-5078 $1,043.70

HONDA Civic 1996-00 H,E,G, H,E,G KON1150-5010 $1,043.70 Civic 1992-95 H,E,G H,E,G KON1150-5006-1 $1,043.70 DelSol 1991-97 H,E,G H,E,G KON1150-5006-1 $1,043.70

MAZDA Miata 1999-04 H,E,G H,E,G KON1150-5062 $1,043.70 Miata 1989-97 H,E,G H,E,G KON1150-5031 $1,043.70

MINI Cooper,Cooper“S”(anti-rollbarattached) 2002-04 H,E,G H,G KON1150-5079 $1,043.70

SATURN LSeries 2000-01 H,E H KON1150-5032 $1,271.55

VOLKSWAGEN Beetle4cyl.(Exc.AWD) 1999-04 H,E H KON1150-5048 $1,043.70 Cabrio 1993-00 H,E H,E,G KON1150-5001-1 $1,271.55 Corrado 1990-95 H,E H,E,G KON1150-5001-1 $1,271.55 GolfII&JettaII 1985-92 H,E H,E,G KON1150-5001-1 $1,271.55 GolfIII,JettaIII 1993-98 H,E H,E,G KON1150-5001-1 $1,043.70 GolfIV,JettaIV,VR6(Exc.AWD) 1999-04 H,E H KON1150-5048-1 $1,043.70 Passat4&6cyl.(ExcAWD) 1998-03 H G KON1150-5011 $1,043.70

Key: H-RideHeightAdjustable,E-ExternallyAdjustable,G-GasChargedDampers

Make/ Features Kit Model Year Front Rear Number Price

22

23

SUSPENSION - SPORT SUSPENSION

SPORT SUSPENSIONSPRING KITS

ACURA Integra(Exc.TypeR) 94-01 1130-1000 E,G E,G 1020-6500 40mm Legend 91-97 1130-1001 G,1 G 1020-6501 30mm RSX 02-04 1130-1002 E,5 E 1020-6502 40mm AUDI A4,4Cyl.(exc.Quattro&AudiSPortSuspension) 00-01 1130-1103 1020-6006 35mm A4,Sedan,6Cyl.(Exc.2.5TDi,Quattro&AudiSportSuspension) 00-01 1130-1105 1020-6007 35mm A4,Sedan&Avant,4Cyl. 02-06 1130-1106 G G 1020-6010 35mm A4,Sedan&Avant,6Cyl. 02-06 1130-1107 G G 1020-6011 35mm BMW E36-318i,318iS,Sedan,Coupe(Exc.M-Technik) 10/91-99 1130-1200 E,G G 1020-6020 40/20mm E36-325i,328i,Sedan,Coupe(Exc.M-Technik) 5/92-99 1130-1201 E,G G 1020-6021 40/25mm NOTE:For1992ModlesOnlywith80mmplasticcover onstrutuppermount(insideenginecompartment). E46-3-SeriesSedan&Coupe,6Cyl.(ExcXimodels) 98-05 1130-1203 E,G G 1020-6026 35mm CHEVROLET Cavalier 95-05 1130-1300 E,G,5 E,G 1020-6503 25/45mm FORD Contour,4Cyl. 98-01 1130-1602 E E 1020-6056 40mm Contour,6Cyl. 98-01 1130-1603 E E 1020-6057 40mm Focus,Sedan&Hatchback 98-05 1130-1651 E,G E,G 1020-6053 40mm Muatang,V8(Exc.Convertible) 87-93 1130-1700 E,G E,G 1020-6504 30mm Mustang,V8(Exc.IRSandConvertible) 94-04 1130-1701 E,G E,G 1020-6505 35mm HONDA Civic(Front:OEStruts55mmbodyonly) 01-05 1130-1002 E,G E,G 1020-6056 35mm Civic(Front:OEStruts50mmbodyonly) 01-05 1130-1052 E,G E,G 1020-6056 35mm MAZDA Miata 89-97 1130-2000 E E 1020-6073 35mm Miata 98-05 1130-2001 E E 1020-6072 35mm MINI Cooper,CooperS(Anti-rollbarattachedtostruttube)(ExcCabriolet) 02-06 1130-1900 E,G E,G 1020-6085 30mm MERCEDES-BENZ CSeries,4CylModels,Sedan(Exc.SportSuspension) 93-00 1130-2100 G G 1020-6075 40/25mm CSeries,5/6CylModels,Sedan(Exc.SportSuspension) 93-00 1130-2101 G G 1020-6076 35mm PONTIAC Sunfire 95-05 1130-1300 E,G,5 E,G 1020-6503 25/45mm SAAB 9-3(exc.Viggen&Aero) 99-02 1130-2600 E,G E,G 1020-6122 30mm VOLKSWAGEN Rabbit,Jetta(Exc.Diesel&Automatic) 74-84 1130-2903 E,G E,G 1020-6152 30mm GolfiiandJettaiiwithnon-sealedstruts(ExcSyncro&Dieel) 85-90 1130-2954 E,G E,G 1020-6153 40mm Golfiii,1.8T,2.0,TDi,GT,GTi-16V&VR6(ExcSyncro,Variant) 93-98 1130-2958 E,G E,G 1020-6153 40mm GolfIV,1.8T,2.0,1.9TDi(Exc.4-Motion) 99-06 1130-2910 E,G E,G 1020-6158 40mm JettaIV,1.8T,2.0,1.9TDi(Exc.4-Motion&Wagon 99-05 1130-2917 E,G E,G 1020-6140 40mm JettaV(Exc.4-Motion&Wagon) 05-06 1130-1113 E,G E,G 1020-6004 30/45mm NewBeetle,1.8T,2.0,1.9TDi(Exc.4-Motion) 99-06 1130-2962 E,G E,G 40mm PassatSedan(Exc.4-Motion) 98-05 1130-2915 1020-6168 35mm CODE:1-Usesfactory(OE)lowerspringseat.5-SpecialMcPhersonstrutinsertboltedintoOEhousingaftercuttingtopandremovinginternalparts.E-Externally rebounddampingadjustable(allothersstandardadjustable).G-GasChargedDnmpers.

Pricing - KONI 1130 Sport Kits range from $565.00 to $810.00 KONI 1020 Spring Sets range from $155.00 to $210.00

Make Year Sport Kit Features Features Spring Kit Approx. /Model Part # Front Rear Part # Lowering

SUSPENSION WORKSHEET

24

SHOCK SETUP TECH TIP SHOCK SETUP TECH TIP SHOCK SETUP TECH TIP SHOCK SETUP TECH TIP

Suspension WorksheetInordertodetermineabasicspringsetup,twoimportantinputsarerequired:WHEEL RATEandSUSPENSION FREQUENCY.

InordertodetermineWHEEL RATEandSUSPENSION FREQUENCY,youmustfirstdetermineMOTION RATIO.Adifferentformulaisneededforthetypeofsuspensionyourracevehicleutilizes,A-armorBeamaxle.SeeStep1.PleasetakeintoconsiderationtheANGLE CORRECTION FACTOR(showninstep1)inyourcomputation.

WHEEL RATEistheactualrateofaspringactingatthetirecontactpatch.Thisvalueismeasuredinlbs./in.,justasspringrateisdeterminedbyusingtheformulabelow.SeeStep2.

SUSPENSION FREQUENCYreferstothenumberofciliationsor“cycles”ofthesuspensionoverafixedtimeperiodwhenaloadisappliedtoavehicle.Seestep3.

Step 1: Motion Ratio

Step 2: Wheel Rate (Non-beam)

A-arm Suspension(SeeDiagram1)MRMotionRationd1 Distancefromspringcenterlineto controlarminnerpivotcenter(in.)d2 Distancefromouterballjointtocontrol arminnerpivotcenter(in.)

Beam Axle Suspension(SeeDiagram2)MRMotionRationd3 Distancebetweenspringcenterlines(in.)d2 Distancebetweentirecenterlines(in.)

Angle Correction FactorACFAngleCorrectionFactorA Springanglefrom vertical(SeeDiagram1)C SpringRate(lbs./in.

Wheel RateWR WheelRate(lbs./in.)C SpringRate(lbs./in.)MR MotionRationACF AngleCorrectionFactor

Step 3: Suspension Frequency

Suspension FrequencySF SuspensionFrequency(cpm)WRWheelRate(lbs./in.)SprungVehiclecornerweight Weightlessunsprungweight

Tip 1: Calculation of Wheel Rate for a Given Frequency

WR WheelRate(lbs./in.)(SeeStep2.)SF SuspensionFrequency(cpm) (SeeStep3.)Sprung Vehiclecornerweight Weight lessunsprungweight

Tip 2: Calculation of Spring Rate Needed for a Given Wheel Rate

C SpringRate(lbs./in.)WR WheelRate(lbs./in.)MR MotionRationACFAngleCorrectionFactor

Diagram 1 (A-arm Suspension)ThemotionRatioisaleverarmeffectofthecontrolarmactingonthespring.Ifthespringismountedatanangle,thereducedmotionofthespringmustalsobetakenintoaccount.

Diagram 2 (Beam Axle Suspension)ThemotionRatioofaliveaxlesetupisshownhere.Overtwo-wheelbumps,themotionratiois1:1.Oversingle-wheelbumpsandduringbodyroll,themotionratioisasshowninStep1.Themotionratioisonlyusedforcalculatingrollresistance,notforsuspensionfrequencies.

25

SUSPENSION - RACING SPRINGS

HYPERCO SPRINGS - EXPERIENCE THE PERFORMANCE ADVANTAGEFromFormulaFordtoF1,latemodeltoNASCAR—HYPERCOprovidesaPerformanceAdvantage.That’swhyHYPERCOsuspensioncoilsaretherecognizedleaderamongraceteams...Worldwide.WINSTON CUPFORMULA ONEINDIANAPOLIS 500INDY RACING LEAGUEINDYCAR WORLD SERIESUSAC SILVER CROWNDAYTONA 500SCCA TRANS-AMALL JAPAN F-3000USAC MIDGETJAPAN GTCS BUSCHEAST COAST DIRT MODIFIEDDAYTONA 24 HOURSSEBRING 12 HOURSCRAFTSMAN SUPER TRUCKSTARSUMPSHOW ME “100”F-2000LE MANS 24 HOURSMONACO GRAND PRIXNAMARS MIDGETAMA FORMULA ATLANTICFIA RALLEYWORLD 100ELDORA “DREAM”IMCA...Let’sstartwithsuspensioncoilsonthewinningcarateveryIndianapolis500—since1964.Beyondthat,championsofFormulaOne,CART,IRL,NASCAR,EnduranceSportsCars,Off-Road,GrassRootsOvalTrack(dirtandasphalt),alongwithawidevarietyofothers,havebenefitedfromtheprovenPerformanceAdvan-tagefoundineveryHypercoproduct.

Withtoday’sracingenvironmentmoredemandingthaneverbefore,noonecomponentcanbelessthanper-fect.Thedemandsonsuspensioncoilshavereachedapeakwithtoday’smodernsuspensiontechnology.Hy-percoistheonemanufacturer,knownaroundtheworld,asthecompanythatdevotesthenecessaryresourcesandtheone-to-onecustomerserviceneededtoproducetheoptimumsuspensioncoilsthatwillmeetthehighestdemandsoftoday’swinningraceteams.

Properly engineered and manufactured suspension coils will not lose free length or installed height under normal racing conditions. AtHyperco,ourfocusisalwaysoninnovation.Alwaysresearching.Alwaysdeveloping.Testingnewwaystoimproveperformance.Infact,we’renotjustcoilingsprings,we’reengineeringsuspensioncoils,alongwithothercomponentsthatultimatelyofferracersourPerformanceAdvantage.

Whileothercompaniesofferspringsasapartoftheirexpandingproductline,Hyperco’sfocusisonhighperformancesuspensioncoils.Werecognizethatthebalanceandthehandlingofanyracecarmustbeatitsoptimumforwinningresults.That’swhywe’rededicatedtobeingthesource,worldwide,forhighperformancesuspensioncoils.Customerscanbeassuredwearenotdistractedbyotherproducts;tryingtobeallthingstoallpeople.Ourteamofspecialistscontinu-allyworktorealizeacomponentthatisatitsabsolutestate-of-the-artpotentialforeveryapplicationandenvironment.Wecontinuetocombinethefinestengineersandcraftsmenwiththelatestmanufacturingtechnologyintheindustry.Weutilizethelatestindesignandperformancesimulationsoftware,alongwithmultiaxisrateandloadtestingequipmenttomeasureoveralldynamicperformance.

What’smore,Hypercomanufacturesfrommaterialsthatarenotfoundinamill’sstandardinventory.Thisallowsourengineerstodesignsuspensioncoilstooptimumspecificationswiththelargestvarietyofwirediametersavailabletoday.Wealsomanufacturefromawidevarietyofmaterialsincludingultrahightensilechromesilicon,microalloys,titanium,alloysteelsandstainless.Multiplemagnafluxinspections,beforeandaftercoiling,areusedtoensurethewireisfreefromsurfaceimperfectionswhich,undetected,couldleadtospringfailure.

Collectively,thiscombinationofprofessionalsandresourcesaffordsHypercoaversatile,innovativefacilityand,mostimportantly,it’searnedustheabilitytooffertheracingworldconsistentperformance,exclusivetechnologicaladvance-mentsandreliability.What’smore,fromcoil-overandconventionalstospecialtyandcustom,Hypercoalsoworkswithraceteamsone-to-one,todevelopcustomandproprietaryproducts.Asaresult,moreandmoreteamsarebenefitingfromthePerformanceAdvantagefoundonlywithHypercosuspensioncoils.

That’s why Hyperco is the world wide leader in high performance suspension coils and related components.

26


2.25” SPRINGS 4A0300 $95.00 4A0350 $95.00 4A0400 $95.00 4A0450 $95.00 4A0500 $95.00 4A0550 $95.00 4A0600 $95.00 4A0650 $95.00 4A0700 $95.00 4A0750 $95.00 4A0800 $95.00 4A0850 $95.00 4A0900 $95.00 4A0950 $95.00 4A1000 $95.00 4A1050 $95.00 4A1100 $95.00 4A1150 $95.00 4A1200 $95.00 4A1250 $95.00 4A1300 $95.00 4A1350 $95.00 4A1400 $95.00 4A1450 $95.00 4A1500 $95.00 4A1600 $95.00 4A1700 $95.00 4A1800 $95.00 4A1900 $95.00 4A2000 $95.00 4A2100 $95.00 4A2200 $95.00 4A2300 $95.00 4A2400 $95.00 4A2500 $95.00 4A2600 $95.00 4A2700 $95.00 4A2800 $95.00 4A2900 $95.00 4A3000 $95.00 4A3200 $95.00 4A3400 $95.00

5A0300 $81.00 5A0350 $81.00 5A0400 $81.00 5A0450 $81.00 5A0500 $81.00 5A0550 $81.00 5A0600 $81.00 5A0650 $81.00 5A0700 $81.00 5A0750 $81.00 5A0800 $81.00 5A0850 $81.00 5A0900 $81.00 5A0950 $81.00 5A1000 $95.00 5A1050 $95.00 5A1100 $95.00 5A1150 $95.00 5A1200 $95.00 5A1250 $95.00 5A1300 $95.00 5A1350 $95.00 5A1400 $95.00 5A1450 $95.00 5A1500 $95.00 5A1550 $95.00 5A1600 $95.00 5A1650 $95.00 5A1700 $95.00 5A1750 $95.00 5A1800 $95.00 5A1850 $95.00 5A1900 $95.00 5A1950 $95.00 5A2000 $95.00 5A2050 $95.00 5A2100 $95.00 5A2150 $95.00 5A2200 $95.00 5A2250 $95.00 5A2300 $95.00 5A2400 $95.00 5A2500 $95.00 5A2600 $95.00 5A2700 $195.00 5A2800 $195.00 5A2900 $195.00 5A3000 $195.00 5A3800 $195.00

6A0200 $81.00 6A0225 $81.00 6A0250 $81.00 6A0275 $81.00 6A0300 $81.00 6A0325 $81.00 6A0350 $81.00

6A0375 $81.00 6A0400 $81.00 6A0425 $81.00 6A0450 $81.00 6A0475 $81.00 6A0500 $81.00 6A0550 $81.00 6A0600 $81.00 6A0650 $81.00 6A0700 $81.00 6A0750 $81.00 6A0800 $81.00 6A0850 $81.00 6A0900 $81.00 6A0950 $81.00 6A1000 $85.00 6A1050 $85.00 6A1100 $85.00 6A1150 $85.00 6A1200 $85.00 6A1250 $85.00 6A1300 $85.00 6A1400 $85.00 6A1500 $85.00 6A1600 $85.00 6A1700 $85.00 6A1800 $85.00 6A1900 $85.00 6A2000 $85.00 6A2200 $195.00 6A2500 $195.00

7A0250 $81.00 7A0275 $81.00 7A0300 $81.00 7A0325 $81.00 7A0350 $81.00 7A0375 $81.00 7A0400 $81.00 7A0425 $81.00 7A0450 $81.00 7A0475 $81.00 7A0500 $81.00 7A0525 $81.00 7A0550 $81.00 7A0600 $81.00 7A0650 $81.00 7A0700 $81.00 7A0750 $81.00 7A0800 $81.00 7A0850 $81.00 7A0900 $81.00 7A0950 $81.00 7A1000 $81.00 7A1100 $85.00 7A1200 $85.00 7A1300 $85.00

7A1400 $85.00 7A1500 $85.00 7A1600 $85.00

8A0150 $81.00 8A0165 $81.00 8A0175 $81.00 8A0185 $81.00 8A0200 $81.00 8A0225 $81.00 8A0250 $81.00 8A0275 $81.00 8A0300 $81.00 8A0325 $81.00 8A0350 $81.00 8A0375 $81.00 8A0400 $81.00 8A0425 $81.00 8A0450 $81.00 8A0475 $81.00 8A0500 $81.00 8A0525 $81.00 8A0550 $81.00 8A0575 $81.00 8A0600 $81.00 8A0650 $81.00 8A0700 $81.00 8A0750 $81.00 8A0800 $81.00 8A0900 $81.00 8A1000 $85.00 8A1100 $85.00 8A1200 $85.00

9A0150 $81.00 9A0165 $81.00 9A0175 $81.00 9A0185 $81.00 9A0200 $81.00 9A0225 $81.00 9A0250 $81.00 9A0275 $81.00 9A0300 $81.00 9A0325 $81.00 9A0350 $81.00 9A0375 $81.00 9A0400 $81.00 9A0425 $81.00 9A0450 $81.00 9A0475 $81.00 9A0500 $81.00 9A0525 $81.00 9A0550 $81.00 9A0575 $81.00 9A0600 $81.00 9A0750 $81.00

Part#6A0400

FreeLength/2.25"I.D./Rate


27

2.0” SPRINGS 4C0700 $95.00 4C0750 $95.00 4C0800 $95.00 4C0850 $95.00 4C0900 $95.00 4C0950 $95.00 4C1000 $95.00 4C1050 $95.00 4C1100 $95.00 4C1150 $95.00 4C1200 $95.00 4C1250 $95.00 4C1300 $95.00 4C1350 $95.00 4C1400 $95.00 4C1500 $95.00 4C1600 $95.00 4C1700 $95.00 4C1800 $95.00 4C1900 $95.00 4C2000 $95.00 4C2100 $95.00 4C2200 $95.00 4C2300 $95.00 4C2400 $95.00

4C2500 $95.00 4C2600 $95.00 4C2700 $95.00 4C2800 $95.00 4C2900 $95.00 4C3000 $95.00 4C3200 $95.00 4C3400 $95.00 4C3600 $95.00

5C0250 $95.00 5C0300 $95.00 5C0350 $95.00 5C0400 $95.00 5C0450 $95.00 5C0500 $95.00 5C0550 $95.00 5C0600 $95.00 5C0650 $95.00 5C0700 $95.00 5C0750 $95.00 5C0800 $95.00 5C0850 $95.00 5C0900 $95.00 5C0950 $95.00

5C1000 $95.00 5C1050 $95.00 5C1100 $95.00 5C1150 $95.00 5C1200 $95.00 5C1250 $95.00 5C1300 $95.00 5C1350 $95.00 5C1400 $95.00 5C1450 $95.00 5C1500 $95.00 5C1550 $95.00 5C1600 $95.00 5C1700 $95.00 5C1800 $95.00 5C1900 $95.00 5C2000 $95.00 5C2100 $95.00 5C2200 $95.00 5C2300 $95.00 5C2400 $95.00 5C2500 $95.00 5C2600 $95.00 5C2700 $95.00 5C2800 $95.00

5C3000 $95.00

6C0400 $95.00 6C0450 $95.00 6C0500 $95.00 6C0550 $95.00 6C0600 $95.00 6C0650 $95.00 6C0700 $95.00 6C0750 $95.00 6C0800 $95.00 6C0850 $95.00 6C0900 $95.00 6C1000 $95.00 6C1100 $95.00 6C1200 $95.00 6C1300 $95.00 6C1400 $95.00 6C1500 $95.00 6C1600 $95.00 6C1700 $95.00 6C1800 $95.00 6C1900 $95.00 6C2000 $95.00

Part#5C0400

FreeLength/2.0"I.D./Rate

4B0350 $75.00 4B0400 $75.00 4B0450 $75.00 4B0500 $75.00 4B0600 $75.00

7B0175 $75.00 7B0200 $75.00 7B0350 $75.00 7B0400 $75.00 7B0450 $75.00

8B0200 $75.00 8B0225 $75.00 8B0250 $75.00 8B0275 $75.00 8B0300 $75.00 8B0325 $75.00 8B0350 $75.00 8B0375 $75.00 8B0400 $75.00 8B0425 $75.00 8B0450 $75.00 8B0475 $75.00 8B0500 $75.00 8B0525 $75.00 8B0550 $75.00 8B0575 $75.00 8B0600 $75.00 8B0650 $75.00 8B0700 $75.00

8B0750 $75.00 8B0800 $75.00 8B0850 $75.00 8B0900 $75.00 8B0950 $75.00 8B1000 $75.00

10B095 $75.00 10B0110 $75.00 10B0125 $75.00 10B0150 $75.00 10B0162 $75.00 10B0175 $75.00 10B0175/500**$75.00 10B0200 $75.00 10B0200/500**$75.00 10B0225 $75.00 10B0250 $75.00 10B0275 $75.00 10B0300 $75.00 10B0325 $75.00 10B0350 $75.00 10B0375 $75.00 10B0400 $75.00 10B0425 $75.00 10B0450 $75.00 10B0475 $75.00 10B0500 $75.00 10B0525 $75.00 10B0550 $75.00 10B0575 $75.00

10B0600 $75.00 10B0625 $75.00 10B0650 $75.00 10B0675 $75.00 10B0700 $75.00 10B0725 $75.00 10B0750 $75.00 10B0800 $75.00 10B0850 $75.00 10B0900 $75.00

12B085 $75.00 12B095 $75.00 12B0110 $75.00 12B0125 $75.00 12B0150 $75.00 12B0162 $75.00 12B0175 $75.00 12B0185 $75.00 12B0200 $75.00 12B0225 $75.00 12B0250 $75.00 12B0275 $75.00 12B0300 $75.00 12B0325 $75.00 12B0350 $75.00 12B0375 $75.00 12B0400 $75.00 12B0425 $75.00 12B0450 $75.00 12B0475 $75.00

12B0500 $75.00 12B0550 $75.00 12B0600 $75.00 12B0650 $75.00 12B0700 $75.00 12B0750 $75.00 12B0800 $75.00 12B0850 $75.00 14B085 $75.00 14B0100 $75.00 14B0110 $75.00 14B0125 $75.00 14B0138 $75.00 14B0150 $75.00 14B0160 $75.00 14B0175 $75.00 14B0185 $75.00 14B0200 $75.00 14B0225 $75.00 14B0250 $75.00 14B0275 $75.00 14B0300 $75.00 14B0325 $75.00 14B0350 $75.00 14B0375 $75.00 14B0400 $75.00

** NOTE: FifthCoil-2.5”IDx10”IDFreeLength-175/500&200/500(ProgressiveRate)

Part#8B0400

FreeLength/2.5"I.D./Rate 2.5” SPRINGS

RACING SPRINGS - SUSPENSION

28

HYPERCO HYDRAULIC LEVELERS, ETC.HYDRAULIC LOAD CENTERING SPRING PERCH HARDWARE

Part # Racer $HHPERCH-1.875 180.00/ea.HHPERCH-2.00 180.00/ea.HHPERCH-2.25 180.00/ea.HHPERCH-2.50 180.00/ea.

ADD ON/SLIDE PERCH

AUTHORIZED KONI RACE SHOCK SUSPENSION SALES & SERVICE CENTERCall for info on the shocks we can build for cars competing in the always exciting Continental Tire Sports Car Challenge series sanctioned by the GrandAmerican Racing Series.(Photos courtesy of Grand-Am/Brian Cleary)

29

SUSPENSION - CUSTOM SHOCKS

CUSTOM SHOCK PHOTO GALLERY

A A2 B E1

A1 C1 E2

B1 C F

F1

D E

N N1

G H I J K L M O1

O

GALLERYKEY.A-Custom2817Strut.B-28SeriesPorsche911Strut.C-28SeriesStrutInsert,Porsche.D-2811CustomCama-ro.E-2812RearShock,BMW.F-CustomLotusElan80Series,G-28SeriesCustomVW.H-8211Insertin‘05Mustang.I-82SeriesCustomCoil-Over.J-EarlyMustangDouble-AdjustableConversion.K-EarlyCorvetteConversion.L-DaytonaPrototype2822.M-CustomMotorcycle2812.N-8210CustomCobraShock.O-Custom8610Double-AdjustableShockAbsorber.

adjustable koni shocks!

Documents