Quote:
Originally Posted by ZM2
For the 275/35 front on the 18x9.5 ET28 FL-5, even an RE-71R is too wide with -2.7 camber? Tirerack shows the section width of the RE-71R to be slightly wider than the R7 on a 9.5" rim. I've run the 265/35 on ET30, but not the 275 on ET28.
For the rear, the only 285, 295, or 305 35-series track tires I can find are A052's or R888's--not the best tires.
Overall, I'm trying to get the most rubber as possible under the car with a typical track setup for the guys here (lowered 3/4", -2.7 front, -2.0 rear).
I was thinking I could go with a 265/35(F) & 285/30(R) setup for RE-71R, but it sounds the rear would be too short. And, 275/35(F) & 295/30(R) R7 setup, but the front sounds too wide and the rear too short.
What is Apex's wheel and tire fitment recommendation to get the most rubber possible (in a good track tire) on the M2?
Thanks.
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We would recommend the 18x9.5 ET28 square with a 275/35-18. There are a wide variety of tires available in this size that are suitable for track use. You will need close to -2.7˚ for this fitment up front. You might need additional camber for a RE71R or an R7.
This is the preferred track fitment as it allows for rotation of tires, extending their life and more balanced handling at the limit.
The 18x10.5 ET40 rear can work with the 295/30-18 but it is not ideal. You are losing -1.335 inches in overall diameter in the rear over the stock 19x10 ET40 OEM M2 wheel with the 265/35-19. This is a -5.3% change, which is not ideal.
Tire selections are more ideal in this 295/30-18 but keep in mind that the lower overall diameter can cause issues with your speedometer accuracy and your traction control effectiveness.
- Max