The BMW N54 engine was shipped off at the Geneva Auto Show in 2006 and first found in the E92 335i before long. It has now been displaced by the N55 straight-six unit, which you will know from the M2, M3, and the M4 (given the last two get the redesigned S55 variety).
In any case, by no means whatsoever, can the N54 be called an out-of-date engine. There are a lot of BMWs running the plant making the rounds (counting our own 1M) and it is maybe the most needed motors for tuning aficionados. As Carbuzz communicates: “Like the Nissan’s RB26DETT, the N54 can become unfathomable, especially among tuners.”
The N54 is a 3.0-liter straight-six unit with two little strain turbochargers and a tension extent of 10.2:1. There’s an aluminum crankcase with iron chamber lines and a steel camshaft. The driving bar and partner shafts are delivered anyway the chambers have been anticipated. It features Bi-VANOS tech, direct implantation, and an aeronautical intercooler.
Three enhancements of the N54 have been sold, with power yields going from 300 HP to 340 HP. The 300 HP motor weighs 187 kg.
As recently referenced, the N54 at first came in the E9X. It was later available in the E60 5 Series, F01 7 Series, the X6, and the Z4, yet its most notable application went with the 1M Coupe.
Savants, including authors from Car and Driver and EVO, commended the N54 for its smooth power transport and BMW’s undertakings to limit the very leeway. Some even favored it over the more noteworthy, N62 and N63, units.
For instance, Jared Gall of Car and Driver created that the extra heap of the N62 made the front completion of the E60 unnecessarily profound, damping the driving experience when appeared differently about the N54 and paying little mind to the extra grunt, the V8 was so to speak “scarcely speedier” than the N54-arranged 535i regardless.
Meanwhile, Edmunds considered the N54 7 Series the most captivating F01 to drive, before the 750i and the V12-powered 760Li.
N54/N55 tuning potential
While the N54 and N55 are great entertainers in stock structure, it’s the point at which you begin modding them that their actual execution potential is figured out. While the two motors give great gains, the N54 will forever make somewhat more power essentially in light of the fact that it has two turbos and that implies it’s more straightforward for it to produce more power. Fortunately, you don’t have to burn through a huge load of cash and you needn’t bother with any muddled mods to see great additions on the two motors – we will involve the base adaptation of every motor for reference in light of the fact that the more impressive ones previously come pre-changed from BMW thus acquires will shift on those.
Your first port of call will be either a remap or a tuning box and there are a lot of choices for both and they’ll both outcome in comparable increases. A remap will get you an expansion of around 60hp and 80lb-ft, while a tuning box like a JB4 or bootmod3 will get you up to 80hp, and with a ton of tuning boxes being unimaginably simple to introduce there’s actually quite a little exertion engaged with getting a significant climb in power, and at around £450 it’s an exceptionally practical presentation mod. On normally suctioned motors admissions don’t commonly offer much in the method of gains, however on a turbocharged vehicle they’re consistently worth a look and keeping in mind that admission will not do a ton all alone (aside from giving you some more acceptance commotion, which is never something awful), when you begin tossing more mods at your N54 or N55, everything adds up. There are loads available to browse yet the BMS one gets great surveys and is certainly worth a look, and it costs about £130.
The charge pipe (the line from the intercooler to the admission complex) on the two motors is unstable and can bomb even at stock lift pressure, so when you begin increasing the power an uprated one is a flat-out must. For the N54 we’d take a gander at the Rennessis pipe from SSDD (£200), which comes total with an uprated pass-over valve, or the VRSF thing (£200) for your N55. An updated pass over valve is a significant expansion on the grounds that once support pressure builds the stock ones can spill – the N54 utilizes complex outright strain (MAP) so is very content with either a recycling or a barometrical pass over valve, while the N55 utilizes a MAF sensor as it’s ideal to stay with a recycling one (our super tech guide in the May issue clarifies why).
The most prohibitive mark of both the N54 and N55 exhaust frameworks is the downpipe. On the N54 you have one of these from each super, and on the N55 there is only one and it’s the feline in every one of these lines that causes the limitation and an enormous expansion in back-pressure. Fit a de-feline downpipe and you quickly gain power, force, further developed choke reaction and more clamor, so they’re a flat out success for what it’s worth and you can hope to pay around £400. The remainder of the exhaust is fine and any progressions will not actually have an effect to drive, however they will give you a marvelous straight-six soundtrack to appreciate, so we’d toss one on thus alone. We’d likewise take a gander at adding an uprated intercooler to assist with holding admission temperatures down, subsequently possibly expanding power, and one from somebody like Mishimoto will hamper you about £600.
Now, you’ll have around 400hp+ on a N55 and 420hp+ on a N54, and for a great many people that will be sufficient; it will not have cost you a fortune to arrive at this point and your vehicle will feel extremely quite speedy. Obviously, there’s consistently more you can do and the subsequent stage would be a bunch of mixture turbos with uprated internals. It’s about £2500-3000 for a couple of cross breeds for the N54 or around a large portion of that for one for the N55 and that will get you well over 500hp, possibly much over 600hp, on a N54 and around 470hp+ on a N55. You will require some extra supporting mods, for example, a considerably bigger intercooler, uprated low-pressure fuel siphon on the N54, and possibly even meth infusion to assist with holding admission temperatures down and forestall explosion. Assuming you actually need more you really want a major single-super arrangement and for that, you’ll require a complex, which will hamper you around £2500-3000 and afterward you really want a super in addition to extra mods, so the costs will begin to pile up however you can hit over 700hp.