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 bmw s55 engine learning more and more about long-term reliability, bmw s55 engine, common problems, and important preventative maintenance. It's no secret that aging high-performance BMWs need more maintenance than your average tekla api reference. Many older BMWs, especially M cars, have acquired quite a poor reputation for dependability - particularly when the miles start to stack up.

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

BMW Engines. Horatiu Boeriu. The BMW S55 engine had a short life, but it left a long lasting impression on the M owners community. The BMW S55 engine is actually the performance version of the popular N55 engine , which debuted in as the first mass-produced engine to feature a twin-scroll turbocharger. The S55 is a 3. The engine also features a closed-deck crankcase design, a twin-wire arc-sprayed coating on the cylinder bores, Grafal-coated aluminum alloy pistons, and Valvetronic variable valve lift technology. The S55 has a bore of 84 mm, a stroke of The S55 engine is generally considered to be a reliable engine, but it is important to note that it is a high-performance engine and requires regular maintenance. The S55 engine is praised for its power output, responsiveness, and sound, but it also has some common problems that affect its reliability and performance. The crank hub is a component that connects the crankshaft to the timing chain and sprocket. Due to the high torque and stress of the S55 engine, especially when modified, the crank hub can slip or spin on the crankshaft, causing the timing to go out of sync.

The plastic valve covers, too, are prone to cracking over time from the high temperatures it is subject to. Here's how it came to be by James Howe.

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 engine with a twin-scroll turbocharger. Despite being based on the N55 , the S55 has little similarities.

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. Sure, there are a few examples such as the rod bearings found in the BMW E60 M5's S68 V10 that would wear prematurely, fail, and cause catastrophic engine failure. The tabs on the camshaft hubs would break off, end up in the timing chain, and cause catastrophic engine failure. It's a similar story for the V8-powered E9X BMW M3 which commonly suffered from rod bearing failure, throttle body actuator failure, oil consumption, and more.

Bmw s55 engine

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.

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With the heaps of performance that it brought, along […] Read blog. The crank hub is one of the most serious but seldom mentioned problems with the M4. In addition to the twin-scroll turbocharger, the S55 used the manufacturer's 'Valvetronic' and 'Double-VANOS' valve timing and valve lift technology, which allowed for linear power delivery over the rev range. 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. Accept Decline. The S55 debuted in and was the first mass-produced M Division engine with a turbocharger. Read Edit View history. Add to cart Sold out. Check out Continue shopping. Yes, the 84 mm bore, E85 also has a cooling effect on the intake charge due to its high latent heat of vaporization. Other improvements over the N55 include a closed-deck engine block, a reworked cooling system, and lighter and stronger engine parts, which we'll go over in more detail below. It's more remarkable on paper, and that performance transfers flawlessly into practice.

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's not uncommon for the valve cover to begin leaking before 60, miles. With the heaps of performance that it brought, along […] Read blog. The tabs on the camshaft hubs would break off, end up in the timing chain, and cause catastrophic engine failure. E85 has a higher octane rating and lower energy density than gasoline, which means it can resist detonation better and allow for more ignition timing advance and boost pressure. Needless to say, […]. Some of the most common sources of oil leaks on the S55 are the valve cover gasket, the oil pan gasket, and the oil filter housing gasket. Download as PDF Printable version. Archived from the original on 20 February On the N55, there have been reports of its failing much earlier, forcing us to believe that the S55 could experience the same fate. Some might think this is excessive but with an ageing vehicle, regular inspections will likely flag up any potential issues before they have time to get worse. Email sales r44performance. An upgraded charge cooler is not too expensive and is a great step in preventative maintenance.