Bmw s55 engine

The S55 debuted in and was the first mass-produced M Division engine with a turbocharger. However, devotees had nothing to complain about because the S55 was a fantastic engine and a good basis for the forced-induction engines that would likely power the M vehicles in the near future. Here's all you need to know about the BMW S The N55 debuted in on the F07 5 Series Gran Turismo as the German manufacturer's first mass-produced bmw s55 engine with a twin-scroll turbocharger, bmw s55 engine.

The S55 was introduced in in the F80 M3 and F82 M4 models, based on the single-turbo N55 but with a raft of changes on board. Since its launch, it has found its way into the F87 M2 Competition in a slightly de-tuned form, as well as in slightly higher states of tune in the Competition and CS versions of the M3 and M4, while the hottest version was fitted in the M4 GTS. After almost 30 years of high-revving, naturally aspirated engines spread across four generations of M3, with fours, sixes and eights found beneath their bonnets, the move to turbocharged power for the F8x generation of M3 and M4 was never going to be a popular one, but it was inevitable and very much a sign of the times. Spare a thought for both BMW and the S55 — the company and its new engine had an almost impossible act to follow, that being the mighty S65 V8. The S55 that emerged may not have seemed all that impressive at first glance, seeing as it was based on the much-used N55 that had featured in numerous BMWs. At 84mm and

Bmw s55 engine

The BMW N55 is a turbocharged straight-six petrol gasoline engine that began production in The N55 was BMW 's first straight-six engine to use a twin-scroll turbocharger. It also won three straight Ward's 10 Best Engines awards in — The main differences between the N55 and its N54 predecessor are the use of a single turbocharger, the addition of Valvetronic and the type of fuel injectors. Whilst the N54 used a twin-turbo arrangement, the newer N55 uses only a single twin scroll turbocharger. The piezo injectors were more expensive and BMW decided they were not worthwhile outside of Europe, because the potential benefits of lean-burn operation could not be fully realised. The exhaust manifold design, called Cylinder-bank Comprehensive Manifold CCM by BMW, aims to reduce the pressure fluctuations to reduce throttle lag and exhaust back-pressure. As per the N54, the compression ratio is Biturbo engine by Alpina based on the N55B30M0. The crankcase is of a different design and specially cast by BMW for Alpina. The twin turbocharger system of the N54B30 is used, replacing the twin-scroll charging system originally applied.

Reciprocating internal combustion engine. Crank Hub We'll get straight into it and address the elephant in the room: the Crank Hub.

Its demise came at the hands of the S55 — the first mass-produced M Division engine to feature a turbocharger. The introduction of the S55 was a considerable step away from the kind of engines that typically powered a BMW M car. However, enthusiasts were left with little reason to complain as the S55 was a phenomenal engine and a solid foundation for the forced-induction engines that are likely to power the M cars in the immediate future. Although based on the N55, the S55 shares little in common. Yes, figures like the 84 mm bore, The core improvement that this brings compared to an open-deck design is added rigidity; this, in turn, allows for higher cylinder pressures and consequently more power output. The cylinder bores also featured a twin-wire arc-sprayed coating — an atomized spray of metal that is a complex but lighter solution than conventional cylinder liners.

Its demise came at the hands of the S55 — the first mass-produced M Division engine to feature a turbocharger. The introduction of the S55 was a considerable step away from the kind of engines that typically powered a BMW M car. However, enthusiasts were left with little reason to complain as the S55 was a phenomenal engine and a solid foundation for the forced-induction engines that are likely to power the M cars in the immediate future. Although based on the N55, the S55 shares little in common. Yes, figures like the 84 mm bore,

Bmw s55 engine

I agree to the processing of my data in accordance with the conditions set out in the policy of Privacy. As the BMW S55 engine gets older, we are learning more and more about long-term reliability, common problems, and important preventative maintenance. It's no secret that aging high-performance BMWs need more maintenance than your average vehicle. Many older BMWs, especially M cars, have acquired quite a poor reputation for dependability - particularly when the miles start to stack up. But we don't think it's always deserved.

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Any other use, including recreational off-road use, may be in violation of local, state, and Federal laws. Just like the BMW S55 valve cover gasket, the oil pan gasket is also prone to cracking and leaking over time. Single BorgWarner twin-scroll with Intercooler. About Advertise Contact. With the heaps of performance that it brought, along […]. The same may be said for the engine's dependability. Move your BMW with a phone 28 February Changing the gasket requires dropping the subframe — this is a labor-intensive and expensive process that you want to try and avoid. However, enthusiasts were left with little reason to complain as the S55 was a phenomenal engine and a solid foundation for the forced-induction engines that are likely to power the M cars in the immediate future. The BMW S58 engine is a tour de force in the world of automotive engineering. The S55 debuted in and was the first mass-produced M Division engine with a turbocharger. Changing the gasket necessitates the removal of the subframe, which is a time-consuming and costly operation that you should attempt to avoid. Find the perfect part for Your BMW. Facebook Twitter Email.

The BMW N55 is a turbocharged straight-six petrol gasoline engine that began production in

Where the naturally aspirated V8 had to make do with lb ft, the same as the N55, the twin-turbo S55 develops a meaty lb ft from rpm, giving it some monster mid-range punch. BMW Engines. Some owners report leaks as early as 60, miles, but proper maintenance should get you close to , miles before a change is due. Back to blog. This is a very common issue for the S Just like with most BMWs, quality parts are a must. Horatiu Boeriu Horatiu Boeriu is an entrepreneur, journalist and the founder of www. Large, heavy, powerful and a bit less practical than the X5 equivalent, the latest X6 M Competition remains a bold choice. The S55 has a bore of 84 mm, a stroke of Higher-spec iterations of this engine producing more power were available with the Competition packages of the cars above. This will help to identify any potential problems with the engine. The crank hub is one of the most serious but seldom mentioned problems with the M4. In short, the engine is toast.