Odometer Measurement Miscalculation?

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Feb 11, 2008 | 05:55 PM

#26

swoope

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From: orlando, fl

takahashi j

the tire you have in 245/40/18 is 25.7 inches in dia..

the correct dia for the car is 25.9.

you will find that the 225/45/18 is 25.9 inches in dia..

that would be your difference right there...

beers

Last edited by swoope; Feb 11, 2008 at 09:33 PM.

Feb 11, 2008 | 09:28 PM

#27

kersh4w

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From: DC Area

i didnt have my t1rs yet.

but i was using my ws-50s. 225/50/17. and they are slightly larger than the stockers.

Feb 11, 2008 | 09:32 PM

#28

swoope

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From: orlando, fl

Quote:

Originally Posted by kersh4w

i didnt have my t1rs yet.

but i was using my ws-50s. 225/50/17. and they are slightly larger than the stockers.

sorry that was aimed at the op.. as he has his size and brand listed in sig..

i will fix it..

beers

Feb 11, 2008 | 10:28 PM

#29

mike73737

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In post 3 he says he is 100% stock at the time the post was made. He probably changed the sig later.

Feb 11, 2008 | 10:31 PM

#30

Razz1

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From: Cali

Quote:

Originally Posted by ken-x8

If the odo is off by the same as the speedo, they're cheating me out of 5% of my warranty.

FWIW, the speedometer on my wife's Camry is right on, compared with GPS.

Ken

Oh my God... I think I'm gonna

Feb 11, 2008 | 10:32 PM

#31

alz0rz

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From: NYC

4 year old thread!!

Feb 12, 2008 | 07:42 AM

#32

r0tor

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From: PA

this thread fails in so many ways...

the most obvious being the speed thats shown on your speedo is 2mph less then the speed you get if you directly read the OBD-II system...

from there you can calculate almost a 5% change in tire circumference just from the tire going from 11/32" thread depth to the standard 5/32" when you throw them away...