Quote:
Originally Posted by jmitro
cool project.
you've obviously got a lot of experience, but 235/285 seems to be a huge difference in stagger. why not closer to a square setup and dial the handling with suspension tweaks? are you limited by class rules?
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In SCCA C Street rules you have to run the stock wheel width, and I have the staggered 18x7.5/18x9 optional wheels. With the lack of spring force and front camber I will be lacking in the mechanical grip and tunability needed to run a square setup and really will need to just maximize tire contact patch at the detriment to everything else. Really good autocross setups are terrible on a road course and visa versa.
I did some testing last season in my CAM class Cobra with staggered wheels (17x9/17x10.5) and found that it performed better with a staggered 245/275 setup than with a square 275 setup (or a staggered 275/305 setup for that matter). Sidewall deflection started to make itself known. That's why I'm leaning towards the 235/265 over the 265/285 for now.
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