crx mph
08-28-2003, 12:35 AM
#2
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The rim size and tire size are the issue here. If they are not a match to the stock overall size you will be out of calibration. So far as I can tell there is no way to recalibrate since Honda does not offer optional speedo gears.
08-28-2003, 01:25 PM
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you would have to have at least 205 60 17s on your car to offset your speedo that much are you sure its 10 mph off. I've had a few different combos on my car and I've never seen a 10 mph difference. What profile tires are you running.
08-28-2003, 02:25 PM
#5
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If you know your stock tire size, you can find a close 17" tire size on the miata.net size calculator. The closer of a match you can get, the more accurate your speedo will be:
http://www.miata.net/garage/tirecalc.html
http://www.miata.net/garage/tirecalc.html