Quote:
Originally Posted by Jockey
WHP (wheel horsepower) takes into account drivetrain losses (~10-15%) over crank hp (which is the number BMW states).
So if BMW says crank HP is 425 and we are seeing 425 WHP, you can do the math.
edit: and @stressdoc beat me to the punch
PS: Correct me if I'm wrong but is crank HP and BHP interchangeable? I'm fairly certain the mean the same thing.
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The 3.0-litre M TwinPower Turbo straight six-cylinder engine offers drivers the best of both worlds: high rev characteristics with up to 7,600rpm and superior power with a maximum of 550Nm torque. The 431 hp M engine accelerates from 0 to 62 mph in just 4.1 seconds. Bi-Turbo direct fuel injection and typical M fine-tuning ensure that the engine responds directly to the slightest touch of the accelerator with tremendous boost and excellent torque. With its motorsport-suitable cooling concept and additional oil sump cover and oil drain pump, the M engine is ready to take on any challenge. Numerous innovations like sleeveless construction and a lighter, forged crankshaft continue the intelligent lightweight concept, improve dynamics and acceleration, lower fuel consumption and enable an optimal weight distribution of almost 50:50. The reward: unprecedentedly agile driving underscored by the unmistakeable sound of the M engine.
CO2 emissions in g/km 204.0 [194.0] [1]
Combined (ltr/100km)
Combined (mpg) 8.8 [8.3]
32.1 [34.0] [1]
Cylinders/valves per cylinder 6/4
Capacity (cc)
Capacity (cinch) 2979
182.00
Stroke/Bore (mm)
Stroke/Bore (inch) 89.6/84.0
3.50/3.30
Max output (kW/hp/rpm)
317 (431)/5500-7300 [2]
Max torque (Nm/rpm)
550/1850-5500
Compression ratio : 1
10.2
I dunno... Looks like you guys get the shaft w HP again...lol...
If we take the above figure from BMW site and extrapolate your dyne run, it comes to ~ 482bhp on 97-101 octane in UK. It felt immensely faster than the e92 M3 I used to drive to the dealer before the test drive...