15" Konig Heliums+tire weight info

[largeorangefont]

Originally Posted by Nimble

That's also not 100% correct. Too narrow (within reason) will almost always perform better than too wide. A 275 on a 8" wheel will deflect a lot in turns, whereas a 225, a bit too narrow won't budge in a turn.

While I see that you like to try and correct me. I have owned and raced 7 BMW's and a few were ///M cars, I understand handling and tires more than I could type in a paragraph. I used to do the rolling diameter calculations just for the heck of it with the formula memorized. Sure a 245 Kumho MX or Bridgestone S-03 will run wider than say a Dunlop SP Sport 9000 or Kumho Exsta Supra 712, but my above recommendations are damn close to spot on.

I realize you're a domestic owner at heart, and I...well...hate the damn cars, barring the Vettes, a car that can actually perform ALL AROUND well, and not be built like poo. But there's no need to argue with me on common sense things. A 245 tire will always perform better than a 265 on a 8" wheel, it fits the wheel correctly giving more precise handling. And no, I don't run euro stretched tires, just CORRECT for the wheel, that's all.

Russelt3hpirate is absolutely correct. There is no "absolute" answer here. Saying a 245 will always perform better than a 265 is just incorrect. I have seen and experienced many times that wider is generally better within acceptable limits. There is a correct range of tire for a given rim.

Your sizing list is accurate, but by no means is it the end all be all when performance is concerned. You can go wider with success if you have the ability to do so. Do you need go to the absolute limit on a Yaris for maximum performance? Probably not.

What you have owned and raced are irrelevant to this topic as are rollout calculations you have memorized. No offense, but just because you have driven a BMW around a track dosen't mean you are any good at it, or that you are some supreme source of automotive knowledge. If you are wrong, you are wrong.

Ashley