Quote:
Originally Posted by mmsharp
I know that there are several variations of the n55 that we're used for different applications. For example, I know my f30 pre-LCI 335i uses the n55b30m0 and is advertised as having ~300hp but has been shown to make 270-285whp on a dyno.
I was curious about the other variations such as the n55b30o0 and the n55b30t0 that are used in the m235i and the M2 as well as any others out there.
What are their advertised numbers and what have they put down on the dyno in stock form?
What physical parts change between them and what is changed on the stock maps?
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N55 M2 - has forged internals
thats about all i know about it but they all make the same Crank HP