Quote:
Originally Posted by CSG David
With the Innovate kit, you will benefit with a 225 tire on a bigger track and 245 tire on a smaller track. For competitive autocross, I'm sure you'll attempt to fit some massive 275s on a 7" width tire or something just to get every ounce of grip possible. The issue is making sure you can get sufficient heat in the tire for your intended application. Even with boost, the 245 tire may not get sufficient heat for optimal grip. In this case, I would generally recommend a 245/40/17 tire, however, based on your setup, I see that a 225 is an okay tire to run. Running less, however, you're just limiting your grip potential. For best acceleration, Mickey Thompsons on 16s would be great right?
If you can, run a 17x8 +42 TWS T66-F with a 225/45/17 or a 17x9 +35 Wedsport TC105N with 245/40/17 tires. Both setups are fine and fairly dependent on application and desires. Tire selection on 17s is much greater. Everybody has preference, but I recommend RE11A for DD cars and RS3s for track setup. NT01, RC1, or RA1 are great tires if you like running with R-comps. With a grippier tire, you don't need to run as wide of a tire, however, having a fat sidewall also means slightly less response.
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What about 245/45R16 on 16x8 et25 20lbs Enkei Compe wheel wrapped in Bridgestone RE-11. It would poke just a teenie bit.
OR
245/40R17 on 17x8 et35 Kosei K4R 15.8lbs wheel wrapped in Bridgestone RE-11a?
Neither seem like they would rub stock suspension lowered .8" with -1.1 camber. since the offset is further from the car. I run on small tracks and autox and daily drive so according to what you mentioned earlier wider would be better in that case.