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      02-12-2019, 06:27 PM   #64
CSBM5
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Drives: 2019 M2 Comp, 2011 M3, etc
Join Date: Nov 2005
Location: Greenville, SC

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Quote:
Originally Posted by Io View Post
...combined to a castrated engine delivering its maximum power at 5250 rpm (M2: 6500 rpm). Yes, the M2C's engine can rotate up to 7500rpm, but what the point if the power remains constant from 5250rpm?
I almost thought you were joking here. Yes the M2C is rated at 405hp @ 5230–7000rpms (USA spec), and the point is completely about the "area under the hp vs rpm curve"...it's massive throughout the 5200-7000 range and results in the car pulling like a wild beast well past 7000rpms. Peak hp quotes are actually not all that important since what really matters is the area under the hp vs rpm curve and of course proper gearing. Case in point my E90 M3 is rated at 414hp at 8300rpms...the M3 screams like a banshee from 6000-8400 and hits a peak at 8300, but it has a lot less area under that hp versus rpm curve vs the M2C even though it technically reaches a higher peak hp.

TLDR -- one would much rather have a large area under the curve with constant HP output from 5200-7000rpms than some motor that reaches a similar but spiked peak HP value -- the former will always be significantly faster.
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Current Stable:
2019 F87 M2 Competition 6MT, LBB, slicktop, exec pkg
2011.5 E90 M3 6MT Silverstone II, slicktop, Dinan/Eibach, Apex 9.5/10.5x19 with PS4S
2007 E91 328i Silver, slushbox, Eibach fr/E93 M3 rear sway bars, 219Ms
1975 CanAm 125MX2, stock, original owner