Originally Posted by midlife
over the last year, it has been reported by many - including terry at BMS -
that the auto tranny is approx 2 tenths of a second faster (2 car lengths) in the 1/4 mile than the manual.
most if not all of the fastest N54 1/4 track times are with autos.
...also note that the rear differential in the automatic has a 342 final ratio and the auto has something like a 315 final ratio:
hence: many people swapping out for aftermarket LSDs are opting for the automatic final differentila ratio.
sorry to disappoint, but nothing but the facts...
3.08 in the MN6, 3.46 in the Auto I believe. Part of the reason the Autos are faster.