Quote:
Originally Posted by kevinlevrone
Did they say that of the 550Nm, 400Nm are readily available from 3900RPM, like I read on another site about this story ? This sounds a bit strange knowing that the N54 and N55 have the 400Nm available from 1300 and 1200RPM respectively. This may be because they couldn't maintain 400Nm from low RPMs and still make the engine reliable enough for track racing, so torque limiting at lower RPMs was necessary (not that it would matter on the track but it does matter on the street). Or maybe the larger turbos cannot provide the necessary pressure at lower RPMs.
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400N-m at 3900 RPM is the S65 rating...