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      09-05-2012, 09:13 PM   #15
FactorX81
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Drives: 2010 135i, 2014 Ford Escape Ti
Join Date: Nov 2009
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Quote:
Originally Posted by smw356 View Post
This is really just a by product of the small stock turbos / tunes on both the N54 and N55 running out of boost at around 6kish, a bigger turbo would lag a bit but let you pull harder higher up.
+1 torque drops quite rapidly up in the rpm band of the turbo motors which makes them feel like they run out of steam, but they still make more power than the NA motor in that rev range if you look at the dyno charts. It just peaks sooner while the NA motor climbs almost all the way to redline.
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