We won't know who you are personally or be able to track you after your visit to our site. Remaps helps unlock the full potential of all the parts you've fitted to your N55. Because of the increased horsepower output of turbocharged engines, turbo’s started appearing on race cars in the 1930’s. La dernière modification de cette page a été faite le 19 juillet 2020 à 22:26. Here’s a couple for you on the World Wide Web and Youtube. B58/N55とMモデルに搭載されるS55エンジン。BMWの中でも傑作と言われ、非常にパワーのある直6ターボエンジンです。ターボ化されシルキーさはスポイルされていますがそのパワーとフィーリングはまさに傑作 When talking about the best best for your engine, we are going to focus that give the biggest return for your cash. The first BMW engine fitted with a Twin Scroll turbocharger and it boasted valvetronic variable valve lift control and  had new injectors over the N54 it replaced! Reliability started to suffer a bit for us after moving to S2 and that’s why we went back to a stage 1 on our current X1 35i project. The battle between economy and power rages on.Read more... MPG calculator UK miles per Gallon – calculate MPGRead more... Classic VW / UK Tuning Cars / Car Tuning Goodbye. modifier - modifier le code - modifier Wikidata. [19][20], This version produces 368 kW (493 hp) and 600 N⋅m (443 lb⋅ft),[27] due to the use of a water injection system. タービンは三菱重工業製。, 燃料噴射は直噴で行い、圧縮比11.0高圧縮エンジンです。 The N55’s single turbo has its limitations at higher RPM’s. [réf. The second exhaust runner is focused on the larger, outermost part of the turbine. Alfred Buchi wasn’t the first engineer to realize that forcing air into an engine would increase its power but he was the first patent holder for a compressor driven by exhaust gasses. Increasing boost pressure, or “tuning” increases horsepower and torque in either engine. Oil consumption issues have been noted, due to a PCV crank case valve. We detect all unauthorised copyright material taken from our site the moment it is picked up by the search engines using pattern matching tools. The result; faster spooling times like a smaller turbo without sacrificing top-end power. Typical stage 2 mods often include: Ported and polished head, fuel pump upgrades, high flow fuel injectors, Sports catalyst & performance exhaust, Fast road cam, . Le N55 est disponible couplé à une boite de vitesses automatique ZF à 8 vitesses comme sur la BMW 535i (2011) et la BMW 740i (2013)[8] ainsi qu'avec une boîte manuelle à 6 rapports. As per the N54, the compression ratio is 10.2:1, the bore is 84.0 mm (3.31 in), the stroke is 89.6 mm (3.53 in) and the displacement is 2,979 cc (181.8 cu in). N55A30Bの高性能版となるMモデル用として、S55エンジンは、F80 M3、F82 M4、F87 M2に搭載されています。, N54のツインターボエンジンは、シングルターボへ進化しN55となる。 Because one exhaust runner dumps its exhaust on the smaller, inner part of the exhaust turbine it can spool up faster. Altering your camshaft will make a dramatic difference to the engine bhp. Track day insurance BMWの直列6気筒エンジンに関するラインナップ、スペック情報を整理しました。 0W to a 5W cold viscosity and 30 to 40 hot viscosity is not a big of a difference. The N55 remains a reliable, poised engine when modded; during typical cruising the engine feels stock, but apply heavy throttle and the N55 quickly reminds you it is far from stock. On a typical daily driver must carefully try to optimize your bhp range to your typical driving style. The more air to get into an engine, the more fuel it can burn and uprating the induction with a turbocharger upgrade makes massive power gains. B58B30AではN55B30Aと同様に大型シングルターボ（ツインスクロールターボ）、直噴（直接燃料噴射）とバルブトロニック装備。 Whilst the N54 used a twin-turbo arrangement, the newer N55 uses only a single twin scroll turbocharger. bhp and torque adding guide if you want to read more. Adding a supercharger or additional turbo will make large bhp and torque gains, although more complex to install. To read more on this and how to opt out click here All information held by us is kept secure and confidential and will not be divulged to others. Commonly we find the headers are begging for aftermarket tuning parts, although some car makers provide fairly well optimized headers. If you’re looking for a BMW E84, make sure you get the 35i and read our article on why you should buy an E84 X1 35i. The twin scroll was fed from bands 1-3 and 4-6 and everything is managed by a Bosch MEVD 17.2 ECU. Twenty years earlier Gottlieb Daimler patented the modern supercharger by designing an air pump (compressor) driven by a gear. Safety mods Help us improve, leave a suggestion or tip. バルブトロニックは、吸気バルブに無段階リフト制御。 バルブトロニック(可変バルブリフト)は、吸気バルブに無段階リフト制御を行い、スロットル応答、低回転トルク、排気ガスを改善し、燃料消費量を15%削減を達成。直噴システムは、先代N54で使用されたピエゾ型燃料噴射器の代わりに、ソレノイド型インジェクターを使用しています。ピエゾインジェクターは高価で、リーンバーン操作の潜在的な利点を完全に実現できなかったと判断されました。 Copyright 1996-2020 BMWファン. Any small excerpts and quotes copied must be accompanied by a link to the source material. This allows the compressor to spin faster at higher RPM’s without additional moving parts. On the other hand, the twin-turbo setup on the N54 will climb to as much as 20 PSI (depending on supporting mods) and does not fall off as dramatically as the N55. © 2000 - 2020 Content of this site: pages may not be substantially or wholly copied without our prior written agreement. [6], 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. Although BMW posted the same 300 horsepower, 300 ft/lbs of torque for both of these engines in stock trim, the tuning capabilities of the N54 far exceed that of the N55. Le N54 exploite une injection directe avec des injecteurs piezo, aussi utilisés sur les moteurs atmosphériques (BMW N53), alors que le N55 utilise une injection directe à injecteurs Bosch de type solénoïde. We accept no responsibility for damage caused due to following a recommendation made on this site or in the forum. Remapping Diesels You'll find the following versions of the N54 that were fitted to a wide array of BMW's. History, Power & Specs of the N55 Engine. BMW calls this setup Twinpower. We have tips on removing carbon buildup. It also won three straight Ward's 10 Best Engines awards in 2011-2013. When a car has forced induction parts are going to make more power and you'll see that turbo charged engines already contain uprated components. The N55R20A is Alpina's initial version of the N55, producing 301 kW (404 bhp). It has two separate turbos, each powered by 3 of the engines six cylinders. Although the BMW N55 falls behind its N54 counterpart mod for mod, the N55 remains an impressive, easily tune-able engine that is capable of roughly 400whp with a few simple bolt-on’s and an E-85 mixture. [1], The N55 was BMW's first straight-six engine to use a twin-scroll turbocharger. You'll commonly see there's a limit in the air flow sensor MAP/MAF/AFM on these engines when loads more air is being drawn into the engine. Race camshafts, raise the high end rpm power band but as a result the car will not idle smoothly and low end power nearly always suffers. Calculate MPG I’m going to keep this section as simple as possible. Click to expand... For a BMW it's normal, but it's a very hot temperature for your oil to be at. Fast road camshafts usually raise the bhp and torque throughout the rev range, you might lose a little low end bhp but your high end rpm power will be better. The crankcase is of a different design and specially cast by BMW for Alpina.[17]. BMWでは1気筒あたり500ccとした3,4,6気筒のB38,B48,B58エンジンが登場しています。クラッシャブルゾーンが少なくなるなどの理由もありましたが、それはV6エンジンを採用するための言い訳であったと理解できます。実際には、衝突吸収性とはトータル的な設計思想により生まれるもので直6エンジンはデメリットとはならないようです。, シルキーシックスの由来は、1970年代の初代6シリーズ（E24型）に積まれていたビックシックス（3.0/3.5L/SOHC）エンジンが当時も特筆すべき滑らかな回転であったためです。以降、6気筒エンジンは小型化されスモールシックス(M50型とS50型)とも呼ばれました。シルキーシックスの呼び方は継承されて、現在の直噴ターボ6気筒モデルに至りますが、本来のシルキーシックスは、ビックシックスのエンジンを指します。当然ながら、数値的な滑らかさで比べれば最新エンジンの方が滑らかですが、1970年当時の技術的水準でもBMWのエンジンがシルキーシックスと形容されるほどの滑らかさを備えていたと言えるでしょう。, 1980年代のトヨタや日産でも高級車向けに直列6気筒エンジンを搭載していたが、その後は、V型6気筒エンジンに完全移行しました。理由としては、エンジンがコンパクトであり、車体設計の自由度やコストダウンが図れることである。 Injector failure can cause a misfire, and vibration, and we recommend these are replaced every 50,000 miles. Where They Came From. Why do tuners like the N54 over the N55? 2015年に新B58エンジンが導入により、N55は段階的に廃止。 http://www.bmwblog.com/2010/09/12/dyno-test-bmw-335i-and-335is-n54-vs-n55-engine/, https://fr.wikipedia.org/w/index.php?title=Moteur_BMW_N55&oldid=173074269, licence Creative Commons attribution, partage dans les mêmes conditions, comment citer les auteurs et mentionner la licence. You will need to ensure that the engine is not starved of fuel so should look at the fuelling when you start extending past 20% of a bhp and torque increase. Three water injectors are used to lower the temperature of the air in the intake manifold, allowing the boost pressure to be increased from 17.2 psi (1.19 bar) to 21.6 psi (1.49 bar). Compressed air is more dense and therefore contains more oxygen per square inch (PSI.) F21) pour les modèles de l'année suivante[2].. Ayant la même puissance ainsi que le même couple que le N54, le N55 est 15 % plus économique, rejette moins de CO2, a un meilleur turbo lag et un temps de réponse plus court[3],[4].. Alors que son prédécesseur, le N54, utilisait une configuration basée sur alimentation bi-turbo, le N55 n'est pourvu que d'un seul turbo à double entrée (configuration "twinscroll")[5],[5],[6]. [2], Following the introduction of the BMW B58 engine in 2015, the N55 began to be phased out.[3]. （タービン径：39mmツインターボ→53mmシングルターボ） We have a policy of actively enforcing our copyright*. [28][29], 205 kW (275 bhp) - 268 kW (359 bhp) version, "Ward's 10 Best Engines Winners, 1995-2012", "BMW University Technical Training- B58 Engine", "Pop The Hood: Inside the Innovative N55 Engine in the BMW 335i", "BMW unveils single turbo N55 six-cylinder engine for new 5-series GT", "BMW N54 and N55 Six Cylinder Turbocharged Engines", "Six-Cylinder 2012 BMW 640i Coupe Priced from $74,475, Convertible from $81,975", "BMW's M135i is much better than it looks", "The Alpina philosophy - motoring.com.au", "F80 M3 / F82 M4 Complete Technical Docs (With S55 Engine Guide)", "BMW M2 CS Racing makes its North American debut", "444-Horsepower M2 CS Can Be Had With 3 Pedals", "The 2016 BMW M4 GTS is a street-legal water-injected track monster, and it's coming to the US", "BMW M4 DTM Champion Edition marking Marco Wittmann's 2016 DTM championship title", https://en.wikipedia.org/w/index.php?title=BMW_N55&oldid=986208903, Creative Commons Attribution-ShareAlike License, 2017–present Alpina F30/F31 B3 S Bi-Turbo, 2017–present Alpina F32/F33 B4 S Bi-Turbo, This page was last edited on 30 October 2020, at 13:15. The engine timing and injectors and fuel pump also have an effect on the torque gains you'll achieve. (compared to a 0W-30 to a 0W-60) BMW Longlife-01 and BMW Longlife-01 FE certification is important as other oils not having this lable could ruin the engine. nécessaire]. Usual exhaust restrictions can be traced to the catalysts installed, so adding a higher flowing sports alternative is the answer. For starters the BMW N54 is a true twin-Turbo. Fuel becomes an issue when you get north of 20 psi and we were plagued with check engine lights under racing conditions. *By accessing this site you agree to indemnify us of our administrative costs for your violation of our copyright notice above to a total of £500 per page (& £250 per image) used without permission, to cover our time making formal copyright complaints to your web host, your advertising suppliers and requesting the removal of pages from the search engines. 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. The twin turbocharger system of the N54B30 is used, replacing the twin-scroll charging system originally applied. Performance Chips The downside of the N55 is that boost pressures will climb to a peak of 16-18 PSI then drop off as engine speeds climb above 4,500 RPM’s. The N55 replaced the BMW N54 engine and was introduced in the F07 5 Series Gran Turismo. See adverts offers and special deals of interest to you by allowing our trusted Google advertisers to use targeted interest based advertising cookies. Differences compared with the N55 include a closed-deck engine block, lightweight crankshaft, strengthened pistons, different valve material, twin turbos, twin fuel pumps, active exhaust and revised intercoolers.

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