Ozy190

Looking for a second set for track tires (cup 2s or re888s) - was thinking about whether I should keep the staggered setup.
Anyone here running same diameter wheels for performance driving?

Any issues with the nannies going nuts?

Wondering if there's a general view on this.

thigos

Outer tire diameter should be the only thing that would effect gearing, traction control. Can't see how wheel diameter effects this as long as you have clearance.

Porsche mentioned something about the staggered set allowing tires to heat more evenly and maintain temp more evenly. Sounds like marketing-speak too me. I would imagine limited tire options at 21"

For what it's worth, here is a 992 running 20/20 and looking phenomenal.

Ozy190

Question is does the computer recognize that 20's are on vs. 21s and there's no longer an inch difference between front and rear?

Given that nannies are so active on the car - just wondering if that upsets something.

thigos

I understood the question -No. The outer diameter of the tire is what is important