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ETF 5 SPEED vs STANDARD 4 SPEED JAGUAR GEARBOX CALCULATOR.

Select your vehicles rear differential / axle ratio:
What is your general motorway cruising speed:
Which 5th gear ratio would you like fitted:

Driving at your selected cruising speed with your old 4 speed gearbox, your engine would be revving at: (1:1 4th gear ratio)
RPM

Driving at your selected cruising speed with our E-Type Fabs 5 speed gearbox - fitted with your choice of 5th gear ratio, your engine would now be reving at just:
RPM

That means that by fitting our gearbox and driving at your selected cruising speed in 5th gear, your engine revs will drop by:
RPM

     Calculator COPYRIGHT (C)2010 Thomas Jones E-Type Fabs Limited, All Rights Reserved 2010. Results shown are approximate values only.