Thread: More N55 info
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      02-01-2010, 12:33 PM   #15
NYC6
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Drives: '10 135i PPKI/06 C6 Z51 Vette
Join Date: Aug 2009
Location: LI/NY

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Quote:
Originally Posted by BrokenVert View Post
Thats the thing, there is no point in taking an N54 to redline. The power drops off at just above 5K. Even on a full throttle acceleration I shift at about 6K.

That being said, I dont see anything wrong with the N55, heck, its even minus 1 cat in the DPs, so it might be a bit faster due to less back pressure...maybe
Thats another thing. They give you peak TQ damn near off idle and claim thats the best thing since sliced bread and then dont do anything to let the car breathe better at higher revs! Every dyno I see(even chipped with exhaust) has the engine falling flat close to 5K rpm! Yeah that flat TQ curve is great but for an engine that wants to run with the big dogs it needs to make power all the way up to redline. Im guess those small turbos are the cause. They spool up real fast with very little lag for the TQ at 1200 but run out of breathing higher up. Wish we could have both.
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