[T Bone]

Gear Ratios

E60 M5 6MT

1st: 4.06
2nd: 2.40
3rd: 1.58
4th: 1.19
5th: 1.00
6th: 0.87
Final: 3.62

E60 M5 7SMG

1st: 3.99
2nd: 2.65
3rd: 1.81
4th: 1.39
5th: 1.16
6th: 1.00
7th: 0.83
Final: 3.62

 

[T Bone]

Are you sure? The BMW website and the M5 brochure that I have both show that the rear end of the 6-speed as 2.93?

Came from Car & Driver

http://www.caranddriver.com/assets/download/0702_bullet_powertrain_ss.pdf

 

[T Bone]

The 5-speed wasn't deemed unnecessary on the 930, it was not up to the task of the new turboed engines torque. Later versions of the 930 came with a 5 speed tranny, I believe in 1985 or 1986.

1989 was the first 5 speed 930 and +1 on your explanation.

 

[T Bone]

That is good information. With a little math now we have the axle ratios of both the SMG and the 6 speed, or very close.

Thanks all.

http://www.csgnetwork.com/multirpmcalc.html

Lots of calculators on line....