[TR] Toyota 5 speed and spedo calibration

Irv Korey emanteno at gmail.com
Tue Feb 23 21:22:31 MST 2010


On Tue, Feb 23, 2010 at 6:50 PM, Frank Fisher <yellowtr3 at yahoo.com> wrote:

> i recently took my TR3 out on the freeway with my tomtom GPS. i have a
> Toyota 5 speed installed and was curious to see how far off my speedometer
> was. i was delighted to see that it was consistently just 3 mph faster than
> actual (GPS) speed. this was true for speeds 40/60 and 80 mph.
> i seem to recall some suggestions that the calibration could be up to 10%
> off.
> I'm just curious about the findings of others with the Toyota conversion.


Mine runs about 8% low. I also checked mine using a GPS. I'm sure a part of
that error is due to the 205/55x16 tires I run.

Irv Korey
74 TR6 CF22767U
Highland Park, IL


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