Re: speedo is out...mph to rpm calculations

[Greg Meboe <meboe@wsuaix.csc.wsu.edu>]

On Tue, 27 Sep 1994, Chris Kantarjiev wrote:

>       In a non-O/D GT6, you can double the number on the tach and get 
>       approximate mph.
> 
> This is true of every Triumph that I've driven (as long as it has the
> original ratio and tire diameter). That is - in top (overdrive top for
> cars that came with overdrive) the car takes about 1000 rpm/20mph, and
> the gauges are usually arranged so that the needles are parallel.

Hmmm...   
        This must be another one of those constants of nature.  I'm sure 
of it.                  
                Greg Meboe