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Old 04-05-2007, 11:18 PM   #6
palsar
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Join Date: Oct 2006
Location: Pittsfield, MA
Posts: 161
Re: Site for tire sizes and spedometers

According to that site, my new 315/35-17's will not change my speedometer reading from my stock 245/45-17's.

It gives the stock Revs/mile as 785.0 for both. Tirerack.com, where I bought my tires, give the Revs/mile as 808.0 for the 315's and the 245/45-17 as 811.

Anybody have an idea which is correct?
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2003 TR IUP Auto - 60K Miles, 4:10s, MagnaFlow Cat-Bac, 31 spline Axles, SCT Tuner, JLT CAI, CircleD TQ, Mickey Thompson DR, 12.72 @ 105.67, 1.76 60'
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