Thread: speedo accuracy
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Old 05-13-2005, 02:27 PM
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Join Date: Sep 2003
Location: San Jose, Ca
Cobra Make, Engine: SPF #1436 514
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I have the 17" wheels with 315/45 tires the rear of my SPF. Mine is off by 5 mph. When I am doing 60, it is 65. I just used my little hand held GPS to verify. I tried it in my pickup and wifes car first to make sure it was accurate.
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