Quote:
Originally Posted by CanAutM3
In the South African magazine article in the other thread, it is mentioned that the F8X will use the same DCT gear ratios as the F10 M5/6 but with a shorter final drive for shorter overall gearing.
http://f80.bimmerpost.com/forums/sho...d.php?t=915648
However, the spacing between gears is much greater on the new DCT (only the 6th to 5th ratio is smaller). I guess with the broad power plateau of the S55, the tight ratios are not as beneficial as they were with the S65's peaky power curve. On the other hand, the larger spacing between the gears implies a greater RPM drop with each shift, sort of defeats the point of having 7 gears IMO. |
Understand what you mean, but with a 6 speed the spacing would have to be even larger to achieve the same 1st gear ratio for take off and tall top gear for good fuel economy.
With a 7 speed you can have better spacing between gears for both acceleration and fuel economy, right?