Quote:
Originally Posted by pbonsalb
Some of these same dynos that are supposedly the fault for the surprisingly low readings seen from the M3 are probably ones that would also give surprisingly high readings for the 335i. The M3 seems to typically make slightly less than BMW specifies when using the common drivetrain loss factor of 15%, while the 335i seems to make slightly more than BMW specifies when using the same 15% factor. One car may be overrated by BMW and one car may be underrated.
|
We test as many 335's on our dyno as M3's. That's alot of cars tested.
The quoted different in HP of the two different cars is 108HP.
What do we actually see? Around 100-110hp difference on average.
That's the important fact for us.
I am aware that in the US, 335i's make nearly the same power at the wheels as the manufacturer suggests should be at the flywheel.
However......... we don't see this and quite frankly none of the european tuners see this.
Something is up with the testing of 335's in the US.
Even still, it still doesn't matter. The dyno is used to show a difference.