stephenahood Posted January 12, 2007 Share Posted January 12, 2007 I've always felt my speedo read a little high, I recently changed from 215/45 to 225/45 tires (slightly taller), anyone know what the error correction at say 80 MPH would be? Link to comment Share on other sites More sharing options...
Brady Posted January 12, 2007 Share Posted January 12, 2007 Here, try this. http://burnedimage.afraid.org/temp/Tire_Calculator.xls Link to comment Share on other sites More sharing options...
Xenonk Posted January 12, 2007 Share Posted January 12, 2007 very little actually. Keefe Link to comment Share on other sites More sharing options...
SubiGT Posted January 12, 2007 Share Posted January 12, 2007 When I have my handeld GPS in the car for a roadtrip, I notice that(with the stock re92's)the GPS groundspeed is always a little above the speedo indicated speed. When I put on my 18's(225/40-18), the error went to almost zero. Many Shuvs and Zuuls knew what it was to be roasted in the depths of the Slor that day, I can tell you! Link to comment Share on other sites More sharing options...
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