Rim width for autocross. 225/45/15 (f) 275/35/15 (r)
#2
Happy Squirter
Join Date: Feb 2004
Location: Lyman, SC
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According to Tire rack, on a 15" rim, 8" and 10" respectively.
http://www.tirerack.com/tires/Spec.j...irePageLocQty=
http://www.tirerack.com/tires/Spec.j...irePageLocQty=
#4
Speaking in auto-x terms, for the 225 an 8" rim would be great but you could easily go up to a 9" (Hoosiers run much wider than their marketing dimensions suggest). Most folks are running that 275/35 on a 10" rim, but a 10.5" or 11" would maximize the tire width.
#6
Lives on the Forum
Actually it was 285's and 295's. They suggested that it was the better gearing from the shorter tire and better transitional response that made the 245's faster, as they did have slightly less grip.
They were doing this for stock class. For any other class where you're allowed any width wheel you should go for a wider wheel as it'll improve responses and put more rubber on the road for more grip.
They were doing this for stock class. For any other class where you're allowed any width wheel you should go for a wider wheel as it'll improve responses and put more rubber on the road for more grip.
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NickNac113
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10-01-15 09:25 PM