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Old 10-03-2012, 06:49 AM
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Fast Bob Fast Bob is offline
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Join Date: Jun 2004
Posts: 35,218
Mein Auto: 2004 330Ci ZHP 3 pedals
Quote:
Originally Posted by TerraPhantm View Post
Not necessarily. 0-30 for example may be faster, since that'll still be within 1st gear. 0-60 may be slower because 60 requires an extra shift with a 3.46. 0-100 may also be a bit slower since the ZHP just barely gets to 100 in 3rd w/ a 3.07 iirc.

Averaged out, 0 - top speed should occur in roughly the same amount of time. With a 3.07, a ZHP could hit its top gear in 5th gear. A 3.46 will require you to shift to 6th to hit 155. So it'll likely end up being the same amount of time.
IMHO, the main reason for switching to a 3.46 would be to expand the engine`s torque range in the middle of it`s band, making around-town driving and back-road corner scratching more enjoyable. The shorter diff *might* shave a tenth or two from the 1/4 mile time, but the difference would not be earth-shaking....
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