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      09-20-2019, 10:40 AM   #3
GreyAggie
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Drives: BMW M2 Comp
Join Date: Feb 2019
Location: Austin

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Quote:
Originally Posted by PilotxERAU View Post
Quote:
Originally Posted by GreyAggie View Post
I think I remember reading somewhere that the rear tire total diameter had to be slightly larger than the front for the car to not think the traction is slipping. Does anyone know what that ratio needs to be? I'm looking at a setup that is 26.2" in the rear and 26" in the front.

Would that work?
There is a chart with all the math in one of these threads. I saved a screenshot somewhere. 275/30 295/30 matches rolling diameter of stock setup.
I'm not trying to match the overall diameter. I'm trying to duplicate the diameter difference ratio. If the tires fit, they're good. But if the ratio is off and the car thinks it's losing traction during normal driving, that's a problem.

I'd love to see that chart if you find it.
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