Hi guys,
I'm in the process of choosing a gearbox for my manual conversion and I have decided to go down the BMW route.
The two options I am considering are the e46 M3 6sp getrag and the 330d gearbox.
Ideally, I want to get as close to the OE 6sp gearbox on the Supra, but before I commit to buy anything, I'd just like to run it by the gurus as I'm not too versed in ratios.
6 Speed (V160) / (V161)
3.827 / 3.724
2.360 / 2.246
1.685 / 1.541
1.312 / 1.205
1.000 / 1.000
0.793 / 0.818
3.280 / 3.192
3.266(all TT)
Looking at the comparisons, I think the obvious choice would be the M3 6sp as the ratios are quite similar, but am I right in thinking the final drive ratio on the 330d would be geared too high, making it quite difficult to make power lower down the rev range?