Quote:
Originally Posted by Boss330
Awesome car 
But 830hp from a BMS piggyback, catted downpipes and a Akrapovic exhaust... ????
The most powerful S63TU M5/M6 engines so far has both a ECU flash tune (the so called "press tune") and a external boost controller. Those cars have been dynoed at a maximum of 645whp which translates to a bit over 700hp at the flywheel (approximately 700-730hp).
And on the BMS site the tune for the M6 is stated to have 631WHP.
To end up at 830hp the drivetrain losses would need to be at 24%... |
BMS tested m6 with stock parts, and got 631WHP, Akra + AMS dp's give 40-45 whp (as I was told), and Gruppe m intake gives about 12-15 whp... Approximately 691whp = 822hp considering 19% drivetrain loss.
http://bit.ly/1ffR8fA (F10 M5 N63tu twin-turbo-V8-dyno-sheet-MAHA-dyno-shows-573.7-BHP-and-19-drivetrain-loss)
Looking forward to install BMS stage 2 from Terry, apparently it will do another 40whp
Tell you what, I'll wait 1-2 months for my new parts to adapt, then I will dyno test my car, and post my results here
