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09-25-2013, 03:33 PM | #23 |
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09-25-2013, 03:36 PM | #24 |
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Me either! I surmise that the M division went with the N54 in the 1M because it was the more tunable motor and it better accomplished the M division's objectives, especially considering the overboost feature the 1M has for short bursts of extra power. Too bad the M division just didn't give it more power all the time. Of course 1M owners can always purchase an aftermarket tune like many of the rest of us N54 1 owners have.
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09-25-2013, 03:58 PM | #25 | |
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09-25-2013, 04:11 PM | #26 |
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If a frog had wings it wouldn't bump its ass when it hopped. LOL!
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09-25-2013, 09:57 PM | #27 |
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? What did they develop? A flywheel? It's the same engine. There was a lot of talk early on that the turbos were bigger and it had beefed up engine parts but from what I read that was incorrect. The engine is tuned differently. I would think if M wanted to use the N55 there is adequate talent to develop a tune for it.
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09-26-2013, 04:04 AM | #28 | |
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aaaand tuned. |
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10-28-2016, 10:38 AM | #29 |
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N55 or N54
Hello, new to BMW. Just bought a 2012 135i, not sure which engine it has. N55 or N54? Can one tell by just looking at the engine? Also I am curious about the JB4 tune. Anybody with info would be appreciated.
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10-28-2016, 10:57 AM | #30 |
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11-05-2016, 02:06 PM | #32 |
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The engine internals are the same except the N54 has a forged crank. You'll notice the M235/240 & M2 all have a forged crank.
You can read about the difference between a single scroll and twin here: http://dsportmag.com/the-tech/twin-s...-great-divide/ How much difference does the twin in the N54 make over the N55? Good luck in figuring that one out. |
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11-05-2016, 04:40 PM | #33 | |
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