Quote:
Originally Posted by chief1richard
I have a set of 18" Apex 9.5" ET 28 square set up with 255/35 tires for track days. I would like to get back to a staggered set by getting 2- 10.5", or 2- 11" Apex wheels so I can run 275 or 285 wide in the rear. Which would be better for the track in your experience. I would use my 18" 255 wide for the front. Also, would it be OK to run 30's in the back, and 35's in the front?
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For the front, you should be able to fit 265s on those 9.5” Apex’s with no prob.
For the rear, I’d go as wide as you can fit so you can put maximum power down out of the corner. That means 285-305 depending on wheel offset and suspension setup.
F/R series differences doesn’t really matter. The general rule is you want a tire in the rear that has a slightly larger diameter and sidewall measurement. That way, the DSC doesn’t get upset. If you run with DSC off you can run whatever sizes you want, but I’d still try to stick to that rule so handling balance doesn’t get too out of whack.
As an example, when I run R7s or 71Rs, I get a 265/35/19 for the front and 295 or 305/30 for the rear. The 305/30 has almost the same heights as the 265/35, but the 295/30 is a little too short. It works fine tho, bc I run with DSC off.