Tom DiCicco Posted March 2, 2020 Report Share Posted March 2, 2020 I'm getting ready to replace tires on my GT/SC with factory 18"x8.5" rims. Stock tires are 235/50/ZR18 and I would like to try to increase to 255/50/ZR18. Has anyone been successful with this size without any tire rub? Link to comment Share on other sites More sharing options...
BlackSGT Posted March 3, 2020 Report Share Posted March 3, 2020 I have 295's on 10" deep-dish bullitts, no rub. I know of others with 305's but that's pushing it on a 10" and they poke a little beyond the well opening. Traction can be problem on an SC, hence the even wider tires (that still cut loose). I believe 255's fit an 8.5" wheel, but that's it. Also tire width/traction depends on what type of SC you have. A paxton kicks in at higher rev's (less initial wheel spin) whereas a KB or Whipple is immediate. Welcome to the "does it ever end" paradox. Add more power and other things need to be changed for better performance. Link to comment Share on other sites More sharing options...
KOBRA2848 Posted April 11, 2020 Report Share Posted April 11, 2020 I have been running Michelin Pilot Sport AS/3's in size 255/45/18's since 2015 with no issues. I think they look better than the factory originals and no issues rubbing. Mark Link to comment Share on other sites More sharing options...
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