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Bill Verburg Bill Verburg is offline
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Join Date: Dec 2000
Posts: 23,335
Originally Posted by GaryR View Post
Bill, I was only referring to the gearing change (in my case) going from an 18" wheel to a 15" wheel on Hoosier R7s, which was substantial. I know you printed out the gearing and accel charts for me back then, I was amazed at the difference on paper and on track.

18" 275/35 R18 -25.5" diameter, 80.2" circumfrence
15" 275/35 R15 - 23" diameter, 72.2" circumfrence
I know, but there is sooo much more involved I just have to interject when given an opening, Are you still in Europe?
Bill Verburg
'76 Carrera 3.6RS(nee C3/hotrod), '95 993RS/CS(clone)
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