Brian Carpenter wrote:
> According to Chris McGovern's book "The Classic Sunbeam"
> "... the 3.89 ratio gives gearing at 18.7 MPH per 1,000 RPM in top, and a
> genuine 100 MPH might be possible without over-revving." That is 75 MPH
> at 4000 RPM or 56 MPH at 3000. Seattle
> P.S. one more factor on the RPM/MPH is tyre [do you like that?] size. I
> need a full set. Now have 175/75 R13. Any comments on size selection
> would be appreciated
I think my tyres (its catching!) are 175/70 R13, so the lower profile
may be enough to make a difference - but my S.V is revving at about 5500
mph at about 65mph. I don't know what current ratios are in my car but
it seems low.
Thanks for the tip.
Siegfried
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