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Kirkham Motorsports

 
 
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  #14 (permalink)  
Old 10-24-2007, 10:07 PM
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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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Here is my take on the RMC...and to a certain extent the G-force for a start point for a stable road car.

Front toe...total 1/16 to 1/8" in.
Front Caster...as much as your muscles will allow at parking lot speeds. 6 degree common but achievable only with series 1 uppers.
Front camber 1/4 to 3/4 positive.

Rear toe total 1/8 in.
Rear Camber 0- 1/4 to 3/4 positive.

Rear camber doesn't change much with suspension travel but try to set the rear with the drive shafts near horizontal. The lower arms will still incline slightly upwards to the diff and will cause negative camber with body roll.

Dial in both the rear toe and camber by making your own shims. Because of the shortened rear shafts the standard Jag shims may not be quite right. Purchase some Champion 316 stainless shims sheet and make your own shims. ( comes in a pack with a 100x100mm sheet of .002,003,005,012.).

The standard jag camber shims are .020 so the .12 stainless shim will give you a half thickness shim approx.

The thinner champion shims are great for dialling in the toe.

I think it is unwise to "pull" toe by loading the drag arms.

Cheers
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