Robert A. Alexander wrote:
>
> Kay,
>
> Just under the "MPH" on my '85 GL is "805".  It's supposed to be the
> number of revolutions the speedo-cable makes per mile traveled.
> 5280'/805revs=6.56'/rev or 78.71"/rev.  A tire with a circumference of
> 78.71", or a diameter of 25" (diameter=circumference/pi) should give an
> accurate indication of speed.  My 195R75x14 Dunlops measure 24.375".  I
> figure I'm indicating around 3% faster than actual speed.
>
> Does anyone out their have a different number on their speedos?
>
> Bob - WA4RRN
> '85GL
Sir,
You have  sent this message to the wrong address.  I couldn't answer
your question in a million years:)