[E-Type] Top speed / axle ratio

E-Type
1

I’m changing my final drive unit from a 3.07 to a 3.54 for vintage racing.
A friend of mine has a 3.77 available. Does somebody know the top speed for
these ratios (with a 3,8l) ?

Thanks,

Fabien Piriou
63 FHC

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2

Fabien,
The formula is:

MPH = RPM x overall tire diameter divided by gear ratio x 336.

Al

Fabien Piriou wrote:

I’m changing my final drive unit from a 3.07 to a 3.54 for vintage racing.
A friend of mine has a 3.77 available. Does somebody know the top speed for
these ratios (with a 3,8l) ?

Thanks,

Fabien Piriou
63 FHC

To subscribe / unsubscribe, go to http://www.jag-lovers.org/cgi-bin/majordomo

To subscribe / unsubscribe, go to http://www.jag-lovers.org/cgi-bin/majordomo

3

Hi Fabien,

as an approximation: (max rpm*60/1000 * tyre circumference)/axle ratio

e.g. 600060/10002,1/3,77 = 200 km/h

Best regards
Mark 63 OTS (just changing from 3.07 to 3.31)_________________________________________________________________________
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