Quote:
Originally Posted by auf Deutsch
12% is a popular consensus for drivetrain loss
368 WHP x 1.12 = 412 crank...very respectable and thus, a C43/450 and B9 S4 killer
About 60 more WHP than a 335/435 MPPK
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Quote:
Originally Posted by Bee Pee
Both dyno lines looks like max rpm is beyond 7k rpm. My understanding is B58 rev limiter kicks in 7k rpm.
MPPSK dyno line looks like rev limit is raised by ~ 250rpm, which is contrary to oem tech specs that show no change in rev limit.
A chap on FB had his stock m140i dyno'd
361/380 power/torque at the crank which aligns with your findings given that BMW rate B58m, used in M140i/M240i, at 335/369 crank power/torque. His euphoria was short-lived however as on closer inspection, dyno shows rev limit is circa 7300rpm which hints at dyno calibrations being out hence numbers are optimistic.
BP |
Sorry, but for me those results are TOO MUCH optimistic to be real... According to me, the dyno results are already corrected for the drivetrain losses and they show power&torque at the crank.
It is almost impossible to think about a B58 with PK with a maximum power of 433hp at the crank!!!
Even the revs at max power are very very strange...
