Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: Stev0 on 10 July 2021, 17:46:50

Title: Omega 6-speed manual ratios
Post by: Stev0 on 10 July 2021, 17:46:50

Good day all,

The early manual omega's had a 6-speed getrag box - I think it was designated the R26..

Does anyone know the exact gear ratio's and possibly the final drive ratio on those cars?
I can't seem to find the info anywhere.

Thanks in advance

Title: Re: Omega 6-speed manual ratios
Post by: Nick W on 10 July 2021, 18:14:44

It's a five-speed gearbox.
The R25 and R26 designations are for essentially the same gearbox and are directly interchangeable as complete units; the R26 has a few slightly stronger components to cope with the larger, torquier engine.

Title: Re: Omega 6-speed manual ratios
Post by: VXL V6 on 10 July 2021, 20:52:17

The only vehicle in the Omega range with a 6 speed manual box was the Lotus Carlton / Omega which had the gearbox out of a Corvette ZR1

Title: Re: Omega 6-speed manual ratios
Post by: Stev0 on 13 July 2021, 09:16:52

Thanks for the clarification.. what was the ratios on the R28 gearbox?

Title: Re: Omega 6-speed manual ratios
Post by: Enceladus on 14 July 2021, 14:38:02

R28 =
1st 3.81:1
2nd 2.11:1
3rd 1.34:1
4th 1.00:1
5th 0.81:1
Reverse 3.40:1
Differential 3.70:1