Quote:
Originally Posted by stockysnail
I doubt I will ever go BBK. Are you saying more grip because of a wider tire is possible with 17" (if I go 17x8) compared to 16x7 or 16x8? I'm considering keeping my current 18x8 17.8lbs forged, going with 17x9 like RPF1, 17x7 Kosei, or 16x7 or 16x8. I'd be running Bridgestone RE-11 in all the examples. I have ~250hp (supercharged) to the wheels and don't plan on any more in the near or maybe even no more ever. I only lose grip currently when the tires are cold (from sitting) and I floor it (when dry out). I'd expect 16x7 with 205 or 215 width running RE-11 to perform smilarly to the 18x8 225 width I'm running currently. I'm leaning towards 1 because of weight and tire cost. A few track days and autox are my only thing planned aside from daily driving.
CSG David or other CSG, could you rate them or something in order of best performance based on my above use? I'm trying to get someone to help me lean one direction or another.
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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.