Thread: DCT tranny
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      12-02-2012, 07:07 PM   #29
Major General

Drives: 340i M-sport AT
Join Date: Mar 2006
Location: Chicago

iTrader: (1)

Originally Posted by Elk View Post
Yes, we know what the marketing literature states. But is there anything that demonstrates the ZF can/will do a direct eight to two shift as installed in an F30?
I tried it a few times to see what it can do, and why one would need a 6 gear change.
It works on accel.

If you're in "comfort" auto mode, the trans will shift to 8th by around 40-45mph. Staying at that speed while crusing it's in 8th.
Then, stomp the throttle pedal past into the kick down resistance point, and the trans will down shift to 2nd, and it feels like one shift.
However, that one shift does seem to take just a smidge longer than any single down shift.

I think this capability is for fastest accel if one really needs it.
Still it does do what ZF claims it will do.
Very cool, and very fast.