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Justin Cook
TryHard
QLD
JZZ30 TT

Posts: 484
Reg: 07-2005

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 Saturday, July 15, 2006 - 02:37 pm, by:  Justin Cook (Justin) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)
I don't know much about suspension, tires etc. I got sick of calculating tire rolling sizes all the time (what tires would effect speedo etc). So I made an excel sheet to do it. Just put in the three variables on the left (in blue) and it will do the rest. Do not touch the top line its the stock settings.

application/vnd.ms-excelTire Rolling Diameter Calculator
Justin Tire Calc.xls (17.4 k)


Also I have a set of 18" by 8" inch wheels, 35 offset all round. It has 265x35 rears and 235x40 fronts and drives fantastic!

I put a set of 19" by 8.5" front (245x40) and 9.5" rears (265x30) awesome wheels look great lower speeds they are great but as you speed up they tramline terribly! 35 offset fronts and 38 offset rears.

Why do the 19" tramline, or just drive terribly when the offsets are the same (better on the rears in the 19")?

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