Quote:
Originally Posted by Thud
Seems like all BMW motors are underrated these days. The new N57 probably puts out 330hp or so at the crank.
The big question is whether the HP ratings will be the same in the US version. Today's US-spec 335d has lower peak power than the Euro version, though the torque is identical.
I wonder if that has to do with more restrictive exhaust, or maybe the motor is detuned slightly to work with the lowest common denominator of 40 cetane diesel in the US (whereas Europe is 51 minimum I think). From what I've read, Chevron diesel is consistently 47 or above so it's close to europe's fuel.
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Personally, I've always been skeptical about the difference in power between the US and EU 335d's. The only difference is the urea exhaust injection, which isn't the sort of thing that should cost any horsepower. From the dynos I've seen they're all making right around 300 at the crank.