changing tire size

Joe Capri85 · 03-20-2011, 10:22 AM

Hey guys I need new slicks and thought I would go a little bigger. Changing from a 28" tall to a 29.5 tall. good or bad choice and how much rpm do you think it will loose? Low hp car, 2910lbs track weight, dyno at 503 goes through at a 10.60 121 @ 6800rpm with a 4.11. I bracket and have been running a lot of 11.00 index, have been giving some thought to doing some 1/8th sst racing. The car is pretty consistant, but I figure a lil more tire wouldn't hurt. I also have a new 4.56 in the shop I could swap out but want to keep the rpm's around 6800. Thanks for any thought you all may have. Thanks Joe

03-20-2011, 10:22 AM	#1
Joe Capri85 Junior Member Join Date: Mar 2008 Location: Detroit area Posts: 14 Likes: 0 Liked 0 Times in 0 Posts	changing tire size Hey guys I need new slicks and thought I would go a little bigger. Changing from a 28" tall to a 29.5 tall. good or bad choice and how much rpm do you think it will loose? Low hp car, 2910lbs track weight, dyno at 503 goes through at a 10.60 121 @ 6800rpm with a 4.11. I bracket and have been running a lot of 11.00 index, have been giving some thought to doing some 1/8th sst racing. The car is pretty consistant, but I figure a lil more tire wouldn't hurt. I also have a new 4.56 in the shop I could swap out but want to keep the rpm's around 6800. Thanks for any thought you all may have. Thanks Joe