Speedometer Correction for larger wheels? - TCCoA Forums
 
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post #1 of 8 (permalink) Old 05-15-2007, 08:36 AM Thread Starter
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Speedometer Correction for larger wheels?

so i know the speedometer is soposed to be off, How do you fix the speedometer?

I would like it to show the accurate speed, also, does anyone know if you are running 245/35/20 tires, and your speedometer reads 60, how fast are you really going?

Matt Musto

Last edited by musto; 05-15-2007 at 08:52 AM.
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post #2 of 8 (permalink) Old 05-15-2007, 08:41 AM
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Use the Tire size cacluclator HERE to answer your question.

I think you can correct the speed for different size tires with the SCT-X Calibrator II.

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post #3 of 8 (permalink) Old 05-15-2007, 08:55 AM
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You can also corrent your speedo with a Speedcal.
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post #4 of 8 (permalink) Old 05-15-2007, 09:01 AM Thread Starter
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Quote:
Originally Posted by Aaron K. View Post
You can also corrent your speedo with a Speedcal.
what does that consist of?
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post #5 of 8 (permalink) Old 05-15-2007, 09:11 AM
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what does that consist of?
http://www.dallasmustang.com/page/speedcal.php
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post #6 of 8 (permalink) Old 05-15-2007, 09:18 AM
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245/35/20 are close enough to the diameter as stock tires, that they shouldn't cause more than 1 or 2% speedo error.


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Ed N.

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post #7 of 8 (permalink) Old 05-15-2007, 11:05 AM
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Quote:
Originally Posted by Trunk Monkey View Post
Use the Tire size cacluclator HERE to answer your question.

I think you can correct the speed for different size tires with the SCT-X Calibrator II.
only on vehicles with a magnetic pickup VSS.....ours is gear driven.




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post #8 of 8 (permalink) Old 05-16-2007, 09:24 PM
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Ed is right, your size is close enough. You shouldnt be having problems.

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