After reading this mail, I dashed out to my driveway to see what my speedo read. Mine is a kilometer speedo, tops at 180 and the litle number was 1000. Of course, that is over 1000 meters, not 1609 meters(1 mile). Btw, the fastest I've ran my car so far is 140 kmh (88 Syncro, 112hp) Per Lindgren
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 |
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