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CC Advertisers
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07-31-2008, 11:36 PM
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Senior Club Cobra Member
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Join Date: Feb 2006
Location: Melbourne,
VIC
Cobra Make, Engine: RMC, carb 347 TopLoader and Jag running gear ~ so old school I time it with an hour-glass :D
Posts: 1,293
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Not Ranked
Recommended Camber Setting
I am going to modify my front end for improved performance at the track
(recently discovered that the left front camber was positive and cant be made negative without some surgery) and was hoping that someone could give me some general purpose track settings for camber - so I know how much to take out of the frame.
ta
LoBelly
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08-01-2008, 05:54 AM
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CC Member
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Join Date: May 2004
Location: centralia,
IL
Cobra Make, Engine: B&B cobra (sold), Hurricane HMS1002 (sold), Kirkham 289 FIA, (sold) RCR GT 40(sold) SPF GT40 2122(sold) Hurricane HMS2002, (sold) RCR SLC (sold) GTR on the way!
Posts: 1,288
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Not Ranked
I would shoot for between -1 and -2 degrees. There are a lot of variables and your tire tempurature readings at the track will help you determine what is right for your car.
__________________
High Maintenance Racing Team
Run & Gun 2003 - 2013 
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08-03-2008, 10:50 PM
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Senior Club Cobra Member
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Join Date: Feb 2006
Location: Melbourne,
VIC
Cobra Make, Engine: RMC, carb 347 TopLoader and Jag running gear ~ so old school I time it with an hour-glass :D
Posts: 1,293
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Not Ranked
Thankyou  |
08-04-2008, 12:52 AM
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CC Member
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Join Date: May 2002
Location: Brisbane Australia,
QLD
Cobra Make, Engine: RMC under re-construction, GenIV with tremec 600, Jag 3.31 L/S diff
Posts: 3,318
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Not Ranked
LoBelly, Do you need much on the left to go negative?.
Going back a way some RMC owners machined off the inside face of the upper arm pivot shaft. (the one with two bolts attaching it to the chassis plate).
The bolt thru part of the shaft is thicker than the part the upper arm bushes pivot on....It's not much....but may help.
Cheers
__________________
It's impossible to soar like an eagle when you're surrounded by turkeys.
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08-04-2008, 05:35 AM
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Senior Club Cobra Member
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Join Date: Feb 2006
Location: Melbourne,
VIC
Cobra Make, Engine: RMC, carb 347 TopLoader and Jag running gear ~ so old school I time it with an hour-glass :D
Posts: 1,293
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Not Ranked
Thanks for the suggestion Les
My last trip under the car on Saturday was to pull the diff - only spent a small amount of time looking at the upper arms.
Considering adjustable upper arms a-la factory five but that requires planning - whereas access to a nice slab of steel, a cut off wheel and a mig does not (not much anyway)
Would anyone like to check my maths for how far inward I would have to move my upper arm mounts.
I think that if I wanted (say) -3deg and the wheel is currently at 0deg and the upper arm is 196mm (8in) above the centre point of the front wheel I would have to move the top mount in by the result 196mm x cosine of 87 deg (0.0523) = 10.2508mm
Am I looking at this the right way?
(kinda makes my brain hurt - my have to consult my local New Zealander).
LoBelly
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08-04-2008, 05:48 AM
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CC Member
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Join Date: May 2002
Location: Brisbane Australia,
QLD
Cobra Make, Engine: RMC under re-construction, GenIV with tremec 600, Jag 3.31 L/S diff
Posts: 3,318
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Not Ranked
57-65-05 of my trusty Jag manual says:
bla, bla bla, and a change of 1/16" (1.6mm) in shims will alter camber angle by approx. 1/4 deg.
But.......
we don't really know if the RMC has the same pick up points do we?.
You're welcome
__________________
It's impossible to soar like an eagle when you're surrounded by turkeys.
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08-04-2008, 06:12 AM
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CC Member
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Join Date: May 2002
Location: Brisbane Australia,
QLD
Cobra Make, Engine: RMC under re-construction, GenIV with tremec 600, Jag 3.31 L/S diff
Posts: 3,318
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Not Ranked
There is one fella up here that would be able to guide you and that is...
OzVenom ..... He might not tell you his secrets for RMC front ends but he sure knows how to make em work.
Cheers
Les
__________________
It's impossible to soar like an eagle when you're surrounded by turkeys.
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