ramp grinding
DESCRIPTION
Ramp Grinding. Desired Outcome. Blackjack Racing 2012. Ski-doo clutch operation. Typical Practice Day x 10?. Typical Practice Day Results. Typical available parts to choose from. Picture of parts to choose. Problem. Don’t have a perfect part. Grind our own ramps. How to grind it?. - PowerPoint PPT PresentationTRANSCRIPT
Ramp
Grinding
Desired Outcome
Blackjack Racing 2012
1 2 Lane 3 4
Hauck M Laundry Name M Rempel M Thies
18 66 Entry 196 223
0.510 0.456 Rt. 0.504 0.455
1.428 0.000 60 ft. 1.441 1.456
5.705 8.956 Et. 5.767 5.832
1st 4th Place 2nd 3rd
0.000 -3.187 Mov. 0.056 0.072
Ski-doo clutch operation
Typical Practice Day x 10?
Typical Practice Day Results
Typical available parts to choose
from Picture of parts to choose
ProblemDon’t
have a perfect
part
Grind our own rampsHOW TO GRIND IT?
WHERE AND HOW MUCH TO GRIND?
What tool to use Very limited
resources on line Some of the
information is secretive
“You will screw it up”
“You will ruin a lot of sets”
Resources Tool: Stefans Project ConsultingJunk store in Grand ForksMyrdal Orthepedic TechnologiesEcono AbrasivesWhere to grindSki-doo race manuals Garth Race tech from Blair Morgan race teamBranko Hotrod sled shopDean Klatt –Ski-doo racerFAST training video on Ski-doo clutchingGils Engineering
Spindle sander
Where to grind
End result
Two main goals
Modify the engagement
Modify how hard we load the motor during part of the shift
Major clutch components
Engagement Modification
Modification of part of the ramp
Progress Will be able to grind a engagement notch
Will be able to tell where the roller sits on the ramp
Can grind a nice smooth profile
May finish one or two sets
Will modify some one small step a time
Reflection
Not happy with sanding discs available
Sort of need a track dyno
Can’t tell till we get on the track
Research is never finished
Final Reflection