> To add one more data point to the TR3/4 speedometer thread, I have a
> TR4 with a speedometer calibration number of 1184. For what it's worth,
> it is spot-on accurate at 35 mph, according to those radar feedback
> signs that the police occasionally place on our roads. I'm using 165/15
> Cooper SportMaster tires but can't say, offhand, what axle ratio I have.
Got to be the standard 3.7 ratio then.
Might be worth commenting that your radar sign won't display the difference
between 1180 and 1200 at 35 mph. To make even a 1 mph difference, you'd have to
be doing 60 mph.
Randall
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