Quote:
Originally Posted by CSG David
More usable grip with the 17s and the possibility to expand with a BBK is there as well. On top of that, there is a much larger selection of tires available for your application. The downside is the weight is not as formidable as 16x7...which is REALLY light. 
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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.