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  #1  
Old 05-19-2007, 03:42 PM
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Calibrating speedometer?

Question: If you get new rims, how do you calibrate the speedometer? Thinking of a nice pair of 17's to fill out the wheel well
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Old 05-19-2007, 03:45 PM
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Re: Calibrating speedometer?

Or I'll just get a new pair of neat-looking 16's Black rims = awesome!!!
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Old 05-19-2007, 05:09 PM
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Re: Calibrating speedometer?

Your Speedo will have to be calibrated Via the ODB port/PCM.
Most wheel shops can do this, if not question why and find another place

unless your oredring them on the internet, then just find a shoppe' that can change this. Pretty easy.
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Old 05-20-2007, 07:11 PM
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Re: Calibrating speedometer?

Quote:
Originally Posted by Vipey1337
Or I'll just get a new pair of neat-looking 16's Black rims = awesome!!!
Hey man,

Most of the wheels that fit Grand Ams end up being the same diameter as the stocks just with a different tire size. What I'm getting to is that you will most likely have no need to recalibrate the speedo.
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Old 05-20-2007, 08:01 PM
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Re: Calibrating speedometer?

Yea I know what you are saying boug0752.

The total tire hight on your OEM tires would be the same as a bigger rim with a low profile tire, same total hight.

When you get up to 18" and bigger then thats where you would need a recalibration.
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Old 05-20-2007, 09:36 PM
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Re: Calibrating speedometer?

Quote:
Originally Posted by xeroinfinity
Yea I know what you are saying boug0752.

The total tire hight on your OEM tires would be the same as a bigger rim with a low profile tire, same total hight.

When you get up to 18" and bigger then thats where you would need a recalibration.
I know with my 18's I'm only about a mph or two off.
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Old 05-20-2007, 11:10 PM
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Re: Calibrating speedometer?

Yea 1-2 mph isnt bad, but some places that'll still get you pulled over
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