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      08-04-2019, 01:22 PM   #20
darkrom
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Drives: 135i
Join Date: Feb 2011
Location: North Shore MA

iTrader: (5)

Quote:
Originally Posted by The Wind Breezes View Post
N54 is overrated. N55 has more reliable fueling and wastegate and doesn't build up intake deposits to the point where there is an issue. Both motors need stock turbo(s) swapped for "serious" power. Both motors can make gigantic power limited by fueling and tune with upgraded turbo(s).

N55 also comes with dual clutch which is good for hard driving with corners.
Quote:
Originally Posted by The Wind Breezes View Post
N54 is overrated. N55 has more reliable fueling and wastegate and doesn't build up intake deposits to the point where there is an issue. Both motors need stock turbo(s) swapped for "serious" power. Both motors can make gigantic power limited by fueling and tune with upgraded turbo(s).

N55 also comes with dual clutch which is good for hard driving with corners.
Not sure I agree the n54 is overrated. I have an n54 135i and an n55 x1. N55 is a great motor but I'm more worried about the N55 long term and it would take a turbo swap at the minimum to get it to where my stock turbos n54 is.
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