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~ Gear Shift Calculator ~

A little utility to work out your Gearbox Ratios

I've put together this utility when I was trying to work out what was the best ratio to go for on my BGH gearbox.

You can right click and download it and play with ratios to your hearts content, it will also show you at what point your revs will drop to when shifting up/down

Gear Ratio Calculator  (Click this link)

As a matter of interest, these are what I used


Vauxhall XE 2.0 16v (approx 200bhp


Sierra 3.92


  • 1st - 2.66
  • 2nd - 1.75
  • 3rd - 1.26
  • 4th - 1.1
  • 5th - 0.84