>From what I have been told - if I have the 3.9 diff gear ratio I simply
>double the first to digits of the RPM - so 3,000 equals 60 mph, and 4,000
>equals 80.
That is correct. My college TR3's speedo never worked, my our
neighbor who had a TR3 told be the trick. Now that I have a speedo
that works, I can also verify it.
BTW, when I received my latest TR3, I had the same behavior in the
speedo. When I adjusted the trip meter it started to work. So you
may want to play with that adjustment a little to see if that changes
anything. My felt like it was stuck in the adjust position.
John
John A. Wise, Ph.D., CPE
5483 W Potter Dr
Glendale, AZ 85308
(+1)(623)376-9632
Wise@erau.edu
http://home.earthlink.net/~johnwise/TR3A.html
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