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      04-22-2014, 05:23 PM   #39
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Drives: '23 X3 M40i
Join Date: Sep 2012
Location: FL

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Quote:
Originally Posted by Sir Loin
With this power curve chart, I thought it is kind of weird that it has a flat top between 5500 RPM to 7200 RPM. Unless BMW somehow clip the engine output, the HP should peak at 460 or higher at around 6500 RPM if you ignore that flat top and hand draw a curve between the two end points on that flat line.

Is this how BMW under-rates their engines?

I can only think of two things-

a) the turbos r too small to hold more boost up top
b) the car is detuned

I would be willing to bet it's a combo of both but definitely leaning towards A.
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