When I bought my 84 the PO told me the speedo was about 10mph faster than
actual. When I check speed using my Magellan GPS I find that 90mph on the
speedo is 73 mph on the GPS and a tach of about 3800. I have read that a GPS
reading isn't an entirely accurate measure of a fast moving vehicle. I will
check this against a moving car later and post the results.

90 mph actual in an 84 Westy? Yikes you are a brave soul. I can't get over
that sensation of feeling like I am strapped to a brick being thrown with
great force.

Owen

> If you have a friend with GPS  about 15 mins is all it would take to get a
> fix on the accuracy.
> I have an '84 Westy and with 205/70 x 14 tires my speedo is less than 2
mph
> optimistic at 75 mph.    I even checked it at 90 mph and its 2 mph off at
> that speed.

> cheers,  Steve
>