View Single Post
      09-06-2012, 09:39 AM   #31
ATX78703
Major
75
Rep
1,037
Posts

Drives: 2014 335i
Join Date: Jul 2011
Location: Austin, TX

iTrader: (0)

Quote:
Originally Posted by aus View Post
More efficient by how much???
And how would they make these improvements?




What correction factor are you using?
I've always seen people use 1.21 on BMW's??

E9x M3's typically dyno around 330-340, which works out perfectly.
BMW blown engines are WAY underrated. The N54's seem to be pushing 350 crank HP and the 1M even more. The N55 seem to be putting out a little less than the N54's, but still more than the 300 HP it's listed at.

This engine is CRAZY underrated!! But the torque definitely drops off as the revs go up.
.
.
I'm sure the drivetrain is a little bit more efficient AND the engine is underrated, but one thing's for sure.... If the M6GC comes out with a token "power bump" of 20-30 hp, it will probably be no different than this M5 engine.
__________________
2014 335i RWD: ZMM, ZDA, ZDH, ZPP, ZTP, 2NH, 2TB, 5DL; Z4A MPPK; AW ext / VB int
Appreciate 0