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      09-30-2016, 07:43 PM   #14
crawlin
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Drives: BMW Z4 M
Join Date: Apr 2016
Location: Illinois

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Quote:
Originally Posted by seank View Post
Oddly enough, i never heard about the lower center of gravity mentioned which might be the best aspect of running 17's and a smaller diameter tire. Regarding tire diameter, most guys i know run a smaller tire diameter than stock. Regarding width, as Hack has said, only consistent testing will answer that question.
You could probably lower the car about as much as the 17's would save you. On our cars I think a wider would help out quite a bit, m coupes aren't under powered like a miata may be when putting on a bigger tire. I can get near the end of traction on my M coupe pretty fast a little bit of extra grip would go a long way I think.

I wont get my car on the track till next year after some fresh tires and few things I want to do till I get it out there. I think swapping out for a 3.91 or 4.10 rear diff. may be the answer for a little extra acceleration and coming out of corners a little quicker. I think turner offers them as direct bolt ins.
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