2011 335 gets N55 Twin Scroll Single Turbo this Spring per Bimmerfile
 

http://www.bimmerfile.com/2010/01/10...nt=Yahoo!+Mail

i think they should just keep the N54 motor

N54 won't meet emissions in the future and the N55 is cheaper due to the single turbo. Higher power too!

I wonder if this will fix the fuel pump issues?

oh i thought that the N54 was a good engine

I was told it's a new design of HDP, but still relies on the same premise. There has been constant changes to the current HDP's and Piezo injectors. undoubtably still bad parts being installed on vehicles though.

The engine is good.. the HPFP is sh*t.
________
Tipo 500

I thought the new 335is was keeping the N54? Or at least a revised version of it.

http://www.autoblog.com/2010/01/23/o...335is-w-video/

dave the 335is is keeping the N54 the 135/335i will get the new N55 motor single turbo

Yeah, that's what I understood the situation to be...the thread made it sound like the N54 wasn't being used anymore.

The N54 is a better motor for mods...

the n55 motor is the ****. it actually drives reallly well. sounds better then the n54 also. just drove one for the first time today.

the n55 will have a fair amount of mods soon. the n54 was created with a long list of mod options when revealed.

nice information dude ...... thanks