On Thu, 1 Jun 1995, Dave Kautz wrote: > Hi Gerry, o lucky GNATT participant, Yeah! > Saw your post on regarding speedometer error and the first thing I thought > of was tire size. What are you using? Speedometers are usually a little > optimistic but not to the degree you noted. However, using 185/75-14 > tires <which are much more available then the 185-14C that the speedo > gearing is expecting> may account for most of your observed error. The 185/75 > -14 tires are just over 6% smaller in diameter and therefore rotate more per > distance travelled, etc....you already know all this stuff. I posted a little after my first note that I have measured my odometer error (yes I'm running 185/75-14 tires) as 2%. Are they really 6% smaller? That's a lot. Even if they were, though, that would bring a 65mph measure down to 61.1, not 57. My real question is whether I should replace the cable or tear apart the speedometer.....
Thanks! -- Gerry Gerald Skerbitz <gsker@med.umn.edu> U of MN Med School Admin 6-5379
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