N54 is vamoose. N55 takes over
#1
N54 is vamoose. N55 takes over
Just read this official type document, sounds like we can kiss the N54 goodbye. Boy racers who claim their 335i is faster then an M3 beware!
http://www.e90post.com/forums/showthread.php?t=338908
http://www.e90post.com/forums/showthread.php?t=338908
#4
was just about to say what 503alex said...i wonder how more reliable the n55 engine will be in comparison to the n54...will we still get the same headaches or have they learned from their lessons?
#7
Correct.
We'll have to see about the N55. I have no idea how the flow capacity of the new single turbo compares with the N54 twin setup.
We'll have to see about the N55. I have no idea how the flow capacity of the new single turbo compares with the N54 twin setup.
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#9
From what I am told and what I know it should be better but the bigest reason for going to a single turbo was cost. The twin turbo motor cost a lot more money to produce than any of the estimates BMW was originally working with.
#11
what about all the carbon issues for knock faults and injectors causing mass misfires? N54's have been anything but a good engine so far... at least here in the southwest.
#12
Hopefully. BMS has a 135i due in March with the new engine so he'll have his work cut out for him.
#13
Dunno I owned two 335's never had a problem.. both tuned and 1 had over 54k when I got the other one. To me the N54 is one of the best engines ever made. Hence the awards.
#15
The N55 was introduced to lower heat output, increase reliability, and also as an effort to stifle the tuners from getting into it as fast as they did with the N54. By going single turbo, BMW can lock down the engine more securely which should make things more difficult for after-market suppliers to supply products/tuning.
Pretty smart move on their part.
Pretty smart move on their part.