Quote:
Originally Posted by kyleb350
Can you get an 8k redline with 420 HP and 395 ft. lbs? Seems a bit high.
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If they're making 420 horsepower at 8,000RPM then torque will be at 275lb/ft at redline. 420 horsepower at 7,500RPM translates to about 295lb/ft at that same RPM. If the horsepower and torque figures we've been hearing turn out to be correct, then this motor will be losing power quickly as you approach redline (like the current N54/N55 but I expect an M motor to have a better power curve). If you compare that to the power curves for the current S63tü, it makes almost 80% of its peak torque at redline while these rumored power figures would mean the S55 in the new M3 will barely make 70% of peak torque at redline so I still believe the real horsepower figure will be higher than 420, despite the rumors. We'll see.