/

-, ,..;/'

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Issued by:

BRITISH LEYLAND SPECIAL TUN I NG DEPARTMENT ABINGDON-ON-THAMES • BERKSHIRE· ENGLAND

C-AKD 5122

SPECIAL TUNING DATA

Issued by: BRITISH LEYlAND SPECIAL TUNING DEPARTMENT

ABINGDON-ON-THAMES • BERKSHIRE· ENGLAND

Model AUSTD/~\iORR.IS 1800 & VJOLSELEY 18/85'

DESCRIPTIVE I NDEX

Sheet Ga - 1 Issue

D~s;::dption Part No . Qty/Ca~ Sheet ~o .

BODY1J.JORK G1assfibre door, bonr,et & boot p a nels Petrol T~ ~k Shield Competi:ic~ Sump Shield Gearbox P ~o tecto r Plate ' Monza ' He~dlamp Cowl Kit Bonnet Si:~ep Set Auxilia~y 4-1amp bar 3" TachclT.eter

BRAKES DS11 Brake Pad Set ( Not 1800 'S') VG95/l Brake-Shoes VG95/l (Linings c/w rivets)

CA JVtSHAFT ETC. Competition cem 50

0, 80° , 75°, 45

0

Distributor (for above cam) Camshaft Gear - Steel

CARBURETTE~

Single 2" SU Installction Kit (2" SU)

Twin I i " su Installcticn Kit Fl a re Pipe (li" SU) Flare Pipe (2" SU)

CLUTCH Cover assembly - heavy duty Driven Plate - heavy duty

CRANKSHAFT, BEARINGS AND FLYWHEEL Nitrided Crankshaft Bearing set - main Bearing set - connecting rod Lightened Flywhe el

. CYLINDER HEAD Stage I kit complete (Mk.I only) Polished head comp l ete ( ~& .I)

Competition head gasket EXHAUST

or

Competition 3 branch manifold/Front pipe assy. Competition exhaust pipe Silencer Tail Pipe Clips Clip

C-AHT 175 C-AHT 186 C-AHT 187 C-AJJ 3335 C-AJ'] 3381 C-AJJ 3336 C-37H 2889

C-llH 1898 C-llH 1899 C-llH 1928

C-AEH 770 C-BHA 4415 C-AEH 771

C-AUD 308 C-AJJ 3358A C-AJJ 3358 C-AUD 229 C-AJJ 3374 C-AHH 720 9 C-AHT 1 45

C-12H 2711 C-1 2H 2712

C-1 2H 2968 C-18G 8103 C-18G 8022 C-AHT 179

C-AJJ 3341 C-AHT 100 C-AEH 768

C-1 2H 2710 C-AHT 1 53 C-AHT 104 C-AHT 105 C-AHT 106 C-AHT 97

1 1 1 1 1 1 1 1

1 2 1

1 1 1

1 1 1 1 1 2 1

1 1

1 1 1 1

1 1 1

1 1 1 1 2 1

IMPORTANT: Tunin, of the kind described on this sheet is expreuly excluded by the terms of the Warranty of the vehicle manufacturer.

lrTHOGIUPHED IN ENGLAND

G-6' G-: G-: G-5 G-2 G-3 G-3 G-2

G-6 G-6 G-6

G-4 G-4 G-4

G-2 G-2

G-4 G-4 G-4 G-4

G-3 G-3

G-3 G-3 G-4 G-3

G-l

G-4

G-4 G-4 G-4 G-4 G-4 G-4

:

~rtLIJ..\L I U I~ II'J lJ UAIA

Issued by: BRITISH LEYLAND SPECIAL TUNING DEPARTMENT

ABINGDON-ON-THAMES • BERKSHIRE • ENGLAND

Model AUSTII':/MORRIS 1800 & WOLSELEY 18/85 ·

DESCRIPTIVE Index (Continued)

Sheet Ga - 2 Issue 2

Description

GEP..RBOX Uprated 2nd speed gear Uprated laygear

LITERATURE Tuning Booklet

Mk.I only

British Leyland Special Tuning Emblems British Leyland Special Tuning Lapel Badge British Leyland Special Tuning Woven Badge

OIL COOLER, ETC. Oil Cooler Kit Oil Cooler cover

PISTONS Flat top - standard Flat top - +.020" Flat top - +·040" Flat top - +.080" (set of 4 lightweight) SUSPENSIO~

Bottom arm bush set Heavy duty bump stops - front Supplementary bump stops - rear Rear anti-roll bar

VALVE GEAR Valve guides, inlet (Hidural) Valve guides, exhaust (Hidural) Valve inlet (Nimonic alloy) Valve inlet (Nimonic alloy) large Valve exhaust (Nimonic alloy) Valve exhaust (Nimonic alloy) large Valve spring top cup ) F V collets )

or Nimonic valves alve spring

Valve spring bottom cup Double valve springs - inner Double valve springs - outer Tappet adjusting screw Special rocker bracket - front Special rocker bracket - rear Rocker shaft spacer - short Rocker shaft spacer - long Push-rod - short (for AEC 264 tappet)

WHEELS 51" x 13" steel 51" x 13" magnesium Installation kit (magnesium wheels )

SUNDRIES Engine Ti e -ro d kit

Part No.

C-22H 1298 C-22H 1243

C-AKD 5122 C-AKD 5125 C-AHT 200 C-AHT 333

C-AJJ 3337 C-AHT 181

C-AEH 085300 C-AEH 085320 C-AEH 085340 C-AJJ 3375

C-AJJ 3369 C-AJJ 3354 C-AJJ 3355 C-AJJ 3376

C-AEH 755 C-AEH 756 C-AEH 757 C-AEH 860 C-AEH 758 C-AEH 861 C-AEH 760 C-AEH 761 C-AE:-i 801 C-AHH 7265 C-AHH 7264 C-AEH 766 C-AEH 762 C-AEH 763 C-AEH 765 C-AEH 764 C-AEH 767

C-llH 1865 C-llH lE56 C-AJJ 3359

C-AJJ 3372

Qty/Car

1 1

1 pro

1 1

4 4 4 1

1 1 1 1

4 4 4 4 4 4 8 8 8 8 8 8 1 1 2 1 8

5 5 1

1

IMPORTANT: Tunin, of the kind described on this sheet is expressly excluded by the terms of the Warranty of the vehicle manufacturer.

LrTHOGIU.'HED IN ENGLAND

Shept Nc .

G-3 G-3

G-2 G-?

G-4

G-4

G-5 G-5 G-5 G-5

G-4 G-4 G-4

G-3 G-3 G-3

\:litLIHL I U I~ II~ lJ UI-\IA

Issued by :B R IT ISH LE Yl A N 0 SPECIAL TUNING DEPARTMENT ABINGDON-ON-THAMES • BERKSHIRE ENGLAND

Model AU,STHJ/Il'lORRIS H~'JO & WOLSELEY 18/85 Sheet G - 1 Issue 4

STAGE I TUNHIG

Impr ovi:'d acceleration on the Mk ·.I 1800 range with transverse engines c a r. be obl.ained by fitting a British Leyland Stage I Tuning Kit, Part No. C-AJJ 3341, I.h '.ch i::. su i table for cars with either manual or automatic gearboxes •.

Th e k i l contains a polished cylinder head, completely assembled with valves ar.d s pr:ing!;, ma tching inle t/exhaust manifold, complete exhaust system, sparking pllgS, studs, identifying label, and all necessary joints and fitting instruc­ti ::;;;, :.;.

On Mk.II cars Performance Kit C-AJJ 3391 can be fitted. This kit contains cr,e addi tional carburetter , inlet manifold, exhaust manifold and front pipe assprrbly with nece ssary sundry par ts.

The existing ne' .. ! car Warranty \"ill NOT be invalidated when these kits alone are fitted, but any b..;ning beyond this stage WILL invalidate the Warranty. Any queries concerning Warranty matters should be referred to BMC Service Technical Div ision, Cowley, Oxford.

Engines modified by the fitting of these kits may be identified by the dis~inctive rocker cover label in blue and silver shown below. Correspondence in connection \vith Wattanty must include the number stamped on the Stage I cylinder head at the rear i.e. opposite end to the thermostat housing.

This engine Is moditted to works

STAGE I Ensure correct replacement parts are fitted

SPECIAl TUNING DEPT. ABINGDON. BERKSHIRE

A full list of contents is contained in each kit to enable the correct replacement parts to be obtained, but the original cylinder head c a n be retained by the oltme r for refitment when disposing of ' the car.

IMPORTANT: Tunin& of the kind described on this sheet is upr",l)' excluded b), the terms of the Wunnt)' o( the vehicle mlnuf1cturer .

Issued by: BRITISH LEYlAND SPECIAL TUNING OEPARTMENT ABINGOON-ON-THAMES • BERKSHIRE ENGLAND

Medel AUSTIN & r-xJRRIS lSOO, WOLSELEY lS/85 Sheet G - 2 Issue 5

The output of the standard Mk.I engines \-,hen fitted with a Stage I Kit C-AJJ 3341, on Mk.II engines when fitted with Perfor;nance Kit C-AJJ 3391, is the maximum permitted -under the terms of the Warranty, but further power can be cbtained for competition use, in conjunction with other modifications to improve the performance of the whole car.

Full information on carrying out work on these cars is contained in Workshop Manual AKD 4138. Mechanical Parts List AKD 5040 and Body Parts List AKD 50~1 can also be obtained by special order"and these show exploded vie ... ;s of ail the part?

HSS Carburetter

A 2" SU HSS carburetter C-AUD 30S is available for fitting to the polished inlet manifold supplied with the Stage I Tuning Kit. Installation Kit C-AJJ 335S is also required and the gasket supplied in this kit should be used to mark out the 2" (50.~) bore, and then grind out the manifold flange and throttle abutment plate to this size. Fit Exhaust SystelT! C-AHT 10.2 at the same time.

Camshaft & Distributor

For normal fast road use and rallying, use the latest standard camshaft l2H 2435, which was fitted from Engine Nos. lSAMW-U-H 101631, lSWB-Sb-U-H 3064 and lSWB-Sb-A-H 3937. The Mk.II camshaft l2H 2436 has identical timing, but has a cam for the fuel pump drive on ISH engines.

These camshafts should be run with ·015 in (. 3~) rocker clearance, and the standard distributor should be set 100 B.T.D.C. static~

Tachometer

In order to ensure that this important instrument is as near as possible tc the line of vision, a tachometer (rev-counter) C-37H 2SS9 is now available for mounting on the scuttle above the dashboard. It is only 3" (7~) diameter and is complete -within its own cowl and mounting.

Oil Coole!:"

A 13 row oil cooler, together with all necessary pipes, brackets, bolts etc., is contained in oil cooler kit C-AJJ 3337A, which is now suitable for Austin, Morris and Wolseley versions. This cooler should be blanked off for normal winter use with Cover C-AHT lSI, but is desirable for high speed motoring and competition use, or when towing a caravano,

'Monza' HeadJ.amp Cowls

Perspex headlamp cowls are available as a kit under P~rt No. C-AJJ 3335. This kit contains the necessary bracket for mounting the pair of cowls py t wo quick-release screws, and will protect the light units from stone damage.

IMftORTANT: Tunln, of the kind described on this sheet is expressly excluded by the terms of the Warnnty of the vehicle manufacturer.

g '

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Issued by: BRITISH LEYlAND SPECIAL TUNING DEPARTMENT

ABINGDDN-ON-THAMES· BERKSHIRE ENGLAND

Model AJSTIN & MORRIS 1800, WOLSELEY 18/85 Sheet G - 3 Issue "

:o~pc tj _ tion Crankshaft

Whp~ this en~ine is beinq tuned for maximum power and/or r '~ liahil jty ~ "cry stro:,-] crank.shaft C-AEH 82,( is avai12ble for fitting to tht 'se f'r, .!i.n('~;.

1 ~ shm.:ld ~,: c '3refully balanced separately frorr. the flywheel cr,.:1 clutch . v.'ll I :11 : ~ !lO\.,ld then all be balanced 2S a uni t. It is essential to us e only BeCit 11:;.\

5 ~ t C-lEG Ql03 with this crankshaft.

Fly\·:h c el

A lightened flywheel C-AET 179 is avai12ble, which should be ba12ncr d 3S detail£d above.

Competition Clutch

For competition use, it is advisable to use ~ more powerful unit. Cuver Asse~bly C-l2H 2711 and Driven Plate C-12H 2712 are recommended to h andle incn~a:sEd power from these engines.

Gearbox

Laygear C-22H 1243 and 2nd Speed Gear C-22H 1298 are aV2ilable to alter the 2nd Speed gear ratio on early cars from 2·205:1 to 2·05:1. Engines with pcefix l RH already have this new ratio incorporated. '

Final Drive Ratio

,- , .'

Prior to Engine No. 18AMW-U-H 27523 cars were fitted with a 4·187:1 (16/6 7) final drive ratio. This can be fitted to later cars built with the 3·882:1 (17/66) ratio, by fitting Pinion 22H 752 and Wheel 22H 751. ' The speedometer wi 11 also need to be changed, 'or recalibrated if used with non-standard tyres. A n e',v car can be ordered with either ratio,

Oil Surge

The risk of oil surge during competition use may be recuced by fitting the latest oil straine r 22H 1152 in place of the existing part. The original special strainer C-AHT 170 should not now be used.

Wide Rim Wheels

13" x 51''' (140%) steel road wheels are nO\>l available Part No. C-IIH 1865 which should be used with the standard wheel nuts, at the correct torque.

13" magnesium alloy wheels with 51''' (14C1;lS) rims are also available Part No. C-IIH IB66 (5 off) which require special wheel nuts contained in installation kit· C-AJJ 3359. DO NOT EXCEED the correct wheel nut torque of 60 Ib.ft. (8·3 kg.m).

tvIk.II cars are fitted Itfith 14" x 4t" wheels, and should be converted b~ck to 13" wheels if rally tyres such as 175 Dunlop SP44 are to be fitted, otherwise they

will foul the body.

Auxiliary Lamps

A special 4 lamp bar Part No. C-AJJ 3336 is now available in a kit for fittin( to the 1800 front bumper. Mounted on three pillars, it can, be easily detached without upsetting the focussing.

Bonnet Steaps

Leather securing straps are available as a set, Part No. C-AJJ -3381 to r edUCE the possibility of the bonnet flying open during competitive 'even ts.

IMPORTANT: Tunin& of the kind described on this sheet is expressly excluded by the terms of the Wuranty of the vehicle manufacturer,

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•

Q SPECIAL TUr~ING DATA Issued by: BRITISH LEYLAND SPECIAL TUNING OEPARTMENT

ABINGOON-ON-THAMES • BERKSHIRE • ENGLAND

Model AUSTIN , MORRIS 1800 & WOLSELEY 18/85 Sheet G - 4 Issue 4 High Compression Pistons

Further power can be obtained by fitting MSB competition pist6ns C-AEH 853 (4 off) to the standard connecting rods. The rods should. be balanced end-for~end, and connecting rod bearing set C-18G 8022 should be used.

For maximum power ·080" oversize competition lightweight forged pistons are available in this size only (3·2390" bore) as a set of 4 Part No. C-AJJ 3375.

Cylinder head gasket C-AEH 768 is the only one suitable for a tuned engine.

Twin Carburetters Single carburetter versions can be converted to twin by fitting kit .C-AJJ 3391

which contains one additional carburetter, inlet manifold, exhaust manifold and front pipe assembly with necessary sundry parts. On Mk.I cars the inlet manifold should be matched to cylinder head C-AHT 100 and polished throughout. There is no polished head for Mk.II cars with l8H engine number prefix but similar polishing ant matching should be undertaken before fitting twin carburetters.

For maximum top end performance twin 2" carburetters C-AUD 279 can be fitted using Kit C-AJJ 3374 which contains new inlet manifold and necessary additional par

Carburetter flare pipes C-AHT 145 will fit these carburetters and C-ZHH 7209 f It" carburetters to reduce blow back of the mixture with high lift camshafts.

Competition Exhaust Manifold Three branch manifold C-12H 2710 must be used with the twin carburetters. If t

car has already been fitted with a Stage I conversion, only· exhaust front pipe C-AH 153 will be required. Otherwise, fit silencer C-AHT 104 and tail pipe C-AHT 105 to­gether with clips C-AHT 106 (2 off) and C-AHT 97 (1 off) to complete the system.

Competition Camshaft For maximum power, fit competition camshaft C-AEH 770 (See Data Sheet 2-4), bt

the bottom end torque will be reduced. Use the steel timing chain wheels C-AEH 771 12H 244 with this camshaft. On Mk.II cars it will be necessary to fit an electric fuel pump such as AUF 400 as the competition camshafts do not have the pump drive (

With this high lift camshaft, the exhaust valves will foul the cylinder block unless it is machined. Use a flat cutter 1·531" (38.9%) dia. with a 1/16" (1.6%) radius. Machine the block by hand .14" (3.~) deep, using the exhaust valve guide : a head as the location for the cutter.

Distributor Use competition distributor C-BHA 4415 which has no vacuum advance, but has t

correct automatic advance curve. Set this 80 B.T.D.C. static.

Tappet Screws Stronger adjusting screws C-AEH 766 (8 off) are available which have no oil

drilling, but the ball will be satisfactory splash-fed.

Valve Springs The Stage I cylinder head C-AHT 100 is fitted with Inner valve springs IH 72~

and outer springs C-AHH 7264. These will reach valve bounce at about 6400 rpm witt the standard camshaft or 6700 with the competition camshaft. If even higher revolt tions are required, inner springs C-AHH 7265 may be fitted, bpt the whOE valve trc will then be subject to greater strain.

It is essential to use Crankshaft C-12H 2928 (nitrided) or C-AEH 822 (nitridE and cross-drilled) at this stage of tune.

IMPORTANTI Tunln, of the kind des~rtbed on thlJ sheet II expreul7 excluded b7 the term. of the Wurlnt7 of the Ylhlcll manuf"turer. . .

... .. . ' . " .: ~ .... . -.; . ' :':, ~. '.~ .'

SPECIAL ' 'TUNfNG

oj ,

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•

,(" "

DATA Issued by: BRITISH LEYLAND SPECIAL TUNING DEPARTMENT

ABINGDON-ON-THAMES • BERKSHIRE ENGLAND

Model AUSTIN, MORRIS 1800 & WOLSELEY 18/85 Sheet G - 5 Issue 3

Suspension Pressures

For normal use, the suspension pressure is set to pr~vide the correct trim height + til (+ 6%) and is about 245 Ib/sq.in. (17·2 kg/cm ). This is also satisfactory for competition use, but may be increased slightly during a rally to compensate for any settling t~at may occur. On no account should the pressure exceed 275 Ib/sq.in. (19.4 kg/cm ).

Bottom Arm Bushes

If the front suspension settles following severe use, the most likely cause is failure of the original bottom arm bushes. Four Special bushes are now available in a Bottom Bush Set C-AJJ 3369, which should be fitted for any competition use.

Supplementary Bump stops - Rear

When the rear of the car is very heavily laden, a~ditional support for the rear suspension can be obtained by fitting Rear Bump Kit C-AJJ 3355. This kit is particularly desirable for severe rally conditions when the car may leave the ground when heavily laden. It is necessary to drill and tap the rear radius arm to mount these, but the kit contains the necessary instructions.

Heavy Duty Bump stops - Front

Front suspension movement can b,e additionally controlled by fitting Front Bump Rubber Kit C-AJJ 3354 in place of the existing bump stops. These may make the suspension rather harsh for normal use, but' are desirable to absorb some of the shock loadings of rally use.

Rear Anti-roll Bar

To increase roll resistance and decrease understeer fit anti-roll bar kit C-AJJ 3376 between rear suspension arms. Full fitting instructions are supplied With kit.

Sump Protection

A full width Sump Shield C-AHT 186 is available to protect the power unit for normal rally use. For particularly severe events when the full weight of the car may drop onto boulders, it is recommended that an additional Gearbox Protector Plate C-AHT 187 is' fitted to spread the load of abnormal i mpacts. A rubber sandwich plate is provided to act as a further cushion. The resultant effectiveness was proved in the London - Sydney Marathon; but obviously the car must be fitted with an oil cooler to counteract loss 6f airflow over the gearbox casing.

Petrol Tank Shield

The standard petrol tank can be protected from damage by fitting Petrol Tank Shield C-AHT 175. Besides preventing damage by flying stones, this will also stand a lot of abrasion when driving ttie car on rutted tracks •

, ,

IMPORTANT: Tunln, of the kind described on this sheet is expressly excluded by the terms of the Warranty of the vehicle manufacturer.

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SPECIAL TUNING DATA , " "" "

• Issued by: B~ITISH LEYlAND SPECIAL TUNING DEPART~ENT

ABINGDON-ON-THAMES • BERKSHIRE ENGLAND

Model AUSTIN, MORRIS 1800 & WOLSELEY 18/85 Sheet G - 6 Issue 3

Brake Pads and Linings (NOT FOR 1800'S')

DSll brake pads are available Part No. C-llH 1898 (1 off), which should be used in conjunction with VG95/1 brake shoes C-llH 1899 (2 off). VG95/l lining sets are also available, Part No. C-1IH 1928 (1 off).

Fly-off Handbrake Mk.I only

The existing handbrake under the facia panel can easily be converted to fly-off by rotating the fork end of the cable 1800 clockwise as shown from underneath the engine compartment. Check that the handbrake operation is free and apply a good release agent such as Rocket WD-40 to all moving parts.

The handbrake handle should theri be used in a vertical position in the car, and can be locked on by twisting , clockwise to the horizontal position. Leave the locating pin in position· otherwise the cable will be 6ver­twisted to breaking point.

Ligh"tweight Panels and Perspex Windows '; .1

. Glassfibre doors, bonnet ,'" boot and p~rspex windows are now available to special order under the following part numbers.

Doors R.H.F. C-AHT 294 Windows L.H.F. C-AHT 296 R.H.R. C-AHT 298

·L.H.R. C-AHT 300

R.H.F. C-AHT L.H.F. C-AHT R.H.R. C .... AHT L.H.R. C-AHT Rear C-AHT

295 297 299 301 331

Bonnet t-AHT 328 Boot C-AHT 329

~ . With the complete set fitted there is a total weight saving of app~oxima~ely

150 lbs. ~

, I

NOTE: These bare door panels are 'design~d to accept the original trim' ~nd fittings ·or as much of it as is required • . " . They are verY tough and were made available specially for entrants in the London-Mexico . World Cup Rally. .1 .

IMrORTANT, Tunln, of thl kind dllcrlbld on ,hlJ shll' II Ixprualy Ixcludld by 'hi tlrl'lll of thl Warranty of thl vlhlcll manufacturlr.

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~~tLIAL I U I'J 11'J b UAIA

Issued by: BRITISH LEYlAND SPECIAL TUNING DEPARTMENT

ABINGDON-DN-THAMES • BERKSHIRE • ENGLAND

STAGE I TUNING KITS Sheet Y - 1 Issue 3

GREATER FLEXIBILITY AND ECONOMY WITH FULL WARRANTY BACKING

Stage I Tuning Kits are now available for the SINGLE CARBURETTER front-wheel­drive range of BMC cars. These conversions, which use mainly standard parts, are offered on the 850 and 998cc Mini, 1100 and 1300, and early 1800 models, (not Mk.II) whether with automatic or manual transmission and are backed by full BHC Service Warranty.

INCREASED POWER WITH IMPROVED FLEXIBILITY AND ECONOMY

The object of these conversions is to provide greater power throughout engine-speed range thus giving better flexibility and response to the throttle. This makes the cars more pleasant to drive and, by giving increased power where it is most needed, improves their already renowned safety qualities.

Performance tests indicate that there is a general increase ~n power varying between 16 and 21 per cent, depending upon the model concerned. This extra power throughout the speed range means that there is from 20 to 25 per cent more power available for acceleration - a most important factor in the overcrowded ccnditions which exist on most roads today.

The increased flexibility with the stage I conversions, in conjunction with the 9i to 1 compression ratios, can also give an improvement in overall fuel consumptions. This improvement, under comparative cruising conditions, will be in the order of 12 to 15 per cent.

HOW IT'S DONE

Cylinder heads are prepared by hand to give perfect combustion shape, balancing together porting form and finish to give the best possible flow. The kits are then carefully packed by British Leyland Special Tuning Department who supply them via the Distributor/Dealer network to order, who are responsible for fitting them. New cars cannot be converted at the Factory.

All the kits contain a polished manifold and cylinder head, fully assembled with valves, springs, studs, joints, plugs, and detailed fitting instructions. With the exception of the Mini range, the kits are supplied with a new complete exhaust system, designed to minimise power loss whilst giving ample silencing. The 998cc Mini Kits are supplied with just a new silencer assembly. Slight variations for the Traveller and Countryman are catered for by adding Suffix A to Part Number when ordering.

DESCRIPTION AND PART NUMBERS

850cc Mini Manual Stage I Kit

850cc Mini Automatic Stage I Kit

• 998cc Mini Manual Stage I Kit

998cc Mini Automatic Stage I Kit

• 1100cc Manual Stage I Kit

1100cc Automatic Stage I Kit

• 1300 Manual & Automatic Stage I Kit

1800 (Mk.I only) Manual & Automatic Stage I

• NOT SUITABLE FOR TWIN CARBURETTER VERSIONS

UTHOG~PHED IN ENGLAND

C-AJJ

C-AJJ

C-AJJ

C-AJJ

C-AJJ

C-AJJ

C-AJJ

Kit C-AJJ

3343

3347

3346

3345

3342

3;348

3344

3341

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SPECI AL TU NING DATA Issued by: BRITISH LEYlA ND SPECIAL TUNING DEPARTMENT

ABINGDON-ON - THA MES • BER KSHIRE· ENGLAND

STAGE I TUNING KITS Sheet y - 2

STAGE I PERFORMANCE FIGURES

Comparison between Standard Production and Stag e I

by kind permission of 'Motor'

ACCELERATION THROUGH GEARS FROM REST (MANUAL GEARBOX)

*850-c.c.

Std.

M.P.H. Km.P.H. Secs. 0-30 0-48 7·4 0-40 0-64 12·9 0-50 0-80 19·6 0-60 0-96 33·8 0-70 0-113 0-80 0-129

MAXIMUM TOP SPEED

M.P.H. Km.P.H.

72

116

Mini

Stage I

Secs. 5·4 9·0

13·9 22·5

78

125

*998-c.c . Mini

·Std.

Secs. 5 ·9 8 ·9

14·6 22·7

74

119

Stage I

Secs 4 ·8 7·7

11 ·5 17'5

78

125

ACCELERATION IN TOP GEAR (MANUAL GEARBOX)

*850-c.c. Mini *998-c.c. Mini

Std . . Stage I Std. Stage I

M.P.H. Km.P.H . Secs. Secs. Secs. Secs.

20-40 32-64 15·7 13·7 11'97 10·9

30-50 48-80 16·6 14'85 13·6 12·0

40-60 64-96 23·0 20'12 17·0 14'5

50-70 80-113

60-80 96-129

1100

Std.

Secs. 6·3 9·7

15·2 21 ·7 39·8

77-5 125

1100

Std.

Secs.

12·1

13·0

16·8

26'9

range

Stage r

Secs. 5 ·9 8 '65

13·05 19·75 32·75

82

132

range

Stage I

Secs.

12·82

12·6

15·75

21·7

*1300

Std.

Secs. 5 ·1 8 ·0

11·4 17·5 27·1

86·8

140

*1300

Std.

Secs.

12'5 . 13·0

16·8

24·4

range

Stage I

Secs. 4 ·27 6'92 9·55

13'8 19·82 31 ·67

91

146

range

Stage I . Secs.

11 '75

11·12

12·85 I

14'55

21 ·85

Issue 3

*1800 Mk I range

Std.

Secs. 5·07 7·77

11 '67 16·67 22·1 33 ·43

91 ·8

148

Stage I

Secs. 4 ·25 7·15 9·97

15·25 21 ·82 27·62

97·0

156

"1800 Mk I range

Std. Stage I

Secs. Secs.

11 ·3 10·1

12·2 10·85

12·9 11·65

14'5 12·5

19·6 15'15

N .S. Kit C-AJJ 3341 is not .uitable tor Mk J 1800 c:a~ with engine no. prefix 18H onward • • for wh ich a new ki t C-AJJ 3391 is bei ng prepared.

* Fig'ures by kind pormisslon o f 'Motor'

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Issued by: BRITISH LEYLAND SPECI AL TU NIN G OEPART MENT ABINGDON-DN-THAMES • BERKS HI RE ENGLA ND

ModelALL HYDROLASTIC CARS Sheet y ~ 5 Issue 1 AIDS TO TOWING

Stability with Hydrolastic Comfort Special progressive Rear Bump Stop Kits were originally designed for the

severe stresses of international car rallies~ The Mini ones were used on the Monte Carlo Rally winners, and 1800's in the London-Mexico World Cup Rally were similarly fitted with the same parts as listed here. They should not be con­fused with certain other assistors currently on the market.

They will support the extra weight on the rear when towing or carrying heavy loads, yet be unobtrusive when driving without the weight.

Model 1800 range 1100 & 1300 range Mini, Mini Cooper, Cooper'S', l275GT

& Clubman (Hydrolastic only) Austin Maxi

Adequate Cooling

Part No. C-AJJ 3355 C-AJJ 3386

C-AJJ ·3313 C-AJJ 4024

Your car radiator will be able to cope with the additional load if main­tained in good condition, but to keep your oil temperature at the best level an oil cooler is strongly recommended. Once again these have been fully tested under extreme conditions of car rallying and will ensure that your oil will withstand the increased loading. '

Model 1800 Morris, Wo1se1ey & Austin

. 1100 & 1300 range Mini, Mini Cooper & 'S' , Mini Clubman & 1275 GT Austin Maxi

More Pulling Power without Affecting the Warranty

Part No. C-AJJ 3337 C-AJJ 3384 C-AJJ 3309 C-AJJ 4032 C-AJJ 4021

Single carburetter models do not give such high speed perfoFIDance as twin carburetter models, but their low speed pulling power can be made much better by fitting BLMC Stage I Tuning Kits" These consist of a polished fully assembled cylinder head, and in most cases a complete new free flow exhaust system. Note that certain Automatic Transmission versions are different.

The performance kits below consist of twin carburetter conversions for the models listed, and again the new car warranty is NOT a~f~cted.

Stage I Kits Model 850cc Mini, Manual Gearbox 850cc Mini, Automatic Gearbox 998cc Mini & Clubman Manual Gearbox 998cc Mini & C1ubman Automatic Gearbox 1100cc Manual Gearbox 1100cc Automatic Gearbox 1275 & GT Mini 1300 cc Manual & Automatic Gearbox 1800cc Manual & Automatic Gearbox Mk.I

. Performance Kits

1800cc Manual Mk.II version only Austin Maxi

only

Part No. C-AJJ 3343 C-AJJ 3347 C-AJJ 3346· C-AJJ 3345 C-AJJ 3342 C-AJJ 3348 C-AJJ 3394 C-AJJ 3344 C-AJJ 3341

C-AJJ 3391 C-AJJ 4025

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S PEe I AL TU N I NG DATA Issued by: BRITISH LEYLAND SPECIAL TUNING DEPARTMENT

ABINGDDN-ON-THAMES • BERKSHIRE· ENGLAND

ModelGENERAL Sheet z - 1 Issue 4

The following information is issued in order to facilitate the choice of a suitable final drive ratio for any particular application.

The table indicates the wheel revolutions per mile for the tyre size commonly used on British Leyland vehicles. From this the vehicle speed per 1000 engine revolutions per minute can be calculated using the formula.

/ 000 60,000 K P H /1000 RPM _ 96,560 M.P.H. 1 R.P.M. = A x B or • • • • •• - A x B

where A B

= Final Drive Ratio = Wheel revolutions per mile

This formula gives the speed in direct top gear only but the equivalent road speed in any intermediate gear can be calculated by dividing this by ,the gearbox gear ratio.

Tyre Size & Type Wheel revs Tyre Size & Type Wheel revs (Dunlop) per mile @ 30 MPH (Dunlop) per mile @ 30 MPH

520 x 10 C41 1058 145 x 13 SP 934 145 x 10 SP 1095 165 x 13 SP 892 520 x 10 CW44 1060 175 x 13 SP 874 500 x LIO R7 1053 • 145 x 10 SP44 1080 520 x 14 C41 865 550 x 12 C41 960 550 x L14 °R7 807 • 145 x 12 SP 980 560 x 14 C41 853 155 x 12 SP 960 590 x 14 RS5 842 550 x 12 CW44 955 590 x 14 C41 831 145 x 12 SP44 974 145 x 14 SP 892 520 x 13 RS5 914 155 x 14 SP 873 520 x 13 C41 917 165 x 14 SP 854 560 x 13 C41 884 185 x 14 SP 821 550 x L13 R7 840 • 550 x L15 R7 775 • 590 x 13 RS5 871 560 x 15 C41 814 590 x 13 C41 867 590 x 15 ' RS5 807 600 x L13 R7 807 • 590 x 15 C41 . ' 803

600 x L15 R7 747 • 165 x 15 SP 820

• Wheel revs @ 100 M.P.H.

For further information contact the tyre manufacturers direct.

N.B. Any change in final drive ratio or tyre size will affect the accuracy of the speedometer and odometer. This should be recalibrated by the manufacturer's agents.

IMPORTANT: Tunin, of the kind described on this sheet Is expressly excluded by the terms of the Warranty of the vehicle manufacturer. ' " " ,

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Issued by: BRITISH LEYLAND SPECIAL TUNING DEPARTMENT ABINGDON - ON-THAMES • BERKSHI RE ENGLAND

Model GENERAL Sheet z - 4 Issue 2

The following chart shows details of the various Factory camshafts produced for 'B' series in-line and transverse engines.

! Part Nos. to Order 480 184 N.L ..... 12H 2435 N.L.A. 88G 252(t) C-UH 714 C-AEM 770 C-AD, 863 C-ADi 862 (u .. 12M 2436(c) (Use BSG 303 or

480 184) 12M .2435} 12H 2746(c)

Other Part NOI. 12H 76(t) 1H 603 12M 1294 1M 1435(t) 12H 34 lG 2591 lH 729(t)

1H 1066 12M 1647 12H 1656

Standard use Early 1800 Rihy 1.5 1800 Early M.G .... , .. Tour1nll Rac1nll Sprint Super .. · 4/68 1800 M.G.B. Sprint

Inlet opens B'l'DC 00 S° S° S° 160 240 50° 60° 60° closes ABOC 50° 45° 45° 45° 56° 64° 70° 80° 800

Ex. opens BBOC 35° 40° 40° 51° 51° 59° 75° 75° 85° clos .. ATOC 15° 10° 100 21° 21° 29° 45° 45° 55°

Cam. Lift .220" .220" .250" • 250" • 250" • 252,i .315" .315" • 315"

Valve I Lift • 312" • 312" • 355" • 353" • 355" • 358" .445" .4'45" .445"

Runnin9 .015" .015" .015" .018" .015" .015" .018" .015" . 015" clearance .38 " ·38 " ·38 " .46 " .38 " ."38 " .46 " .30 " . 38 "

N.B. (t) Indicates tachometer drive gear can be fitted

(c) Indicates c amshaft has drive cam for S.U. mechanical petrol pump

·N.L.A. p'art no l onger available from the Factory

When checking the camshaft timing, a different valve clearance may be require~, but re~ember to revert to. correct running clearanc~ afterwards •

. If a high'er lift camshaft has been .fitted, check that each valve has 1/16" (1.5 %> clearance from cylinder block or piston when valve is fully open.

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IMPORTANT: Tunln, of the kind ducribed on thlJ sheet is expressly excluded by the terms of th:.e ... ... f .·.·. ,":". ::~.:.\~ ;., •. ".:.:.; ..• ~ .. { .• '.: . .'~.'.'.~ .~, ~.:.;~.;".· ~.~f.;.:,.;.L.·.· ... :.f .i.:.;, Warranty of the vehicle manufacturer. ~ •.. . ' , ' .. .... .... ···>:··Z:: ~': ',:;,: ... ':<>.:..... .: . . , ... - .