My track car setup, which is very fast on most of the track around here.
500whp fyi, understeer on exit is not an issue.
Front:
kw v3 revalved, 950lb/in springs or around 17kg/mm
Whiteline front sway bar and end links.
Kinetix upper arm w/-3.1* camber, around 7* caster, 0 toe
SPL compliance bushing and lower arm bushing.
REAR:
KW V3 revalved, 750lb/in or 13k
Stock sway bar
SPL knuckle bushings
-1.75* camber/ 1/8-1/4 total toe in (depends on how fast the track is)
315 toyo r888 fron and rear is the usual tire.
So you need any of this? NO, but this amount of roll stiffness is what it takes to make a fast car. It sucks on the street even valved properly. Most of the issues with this car revolve around keeping it cool, not suspension setup.
Zack
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