[4][5] Valvetronic (variable valve lift)[6] is claimed to improve throttle response, low-rev torque, exhaust emissions and to reduce fuel consumption by 15%. 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! Injector failure can cause a misfire, and vibration, and we recommend these are replaced every 50,000 miles. The possible viscosity variances for the N55 are quite small. 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. The BMW N55 is a turbocharged straight-six petrol engine that began production in 2009. We have a policy of actively enforcing our copyright*. We accept no responsibility for damage caused due to following a recommendation made on this site or in the forum. Commonly we find the headers are begging for aftermarket tuning parts, although some car makers provide fairly well optimized headers. 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! double clutching
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Performance Chips
*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. Headers carry the air from the air cleaner and allow it to be sucked into the engine and mixed with fuel. The low end idle will be very lumpy and irregular, so something you would notice on a track when you drive in the upper third of the rpm band, but on roads this is a serious issue and we've heard from lots of drivers lamenting their decision to add an extreme competition cam profile to their engine.
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). In 1905, Swiss engineer Alfred Buchi applied for a patent on what would become the modern-day turbocharger. "Thanks for reading our N55 tuning guide". We later found that the car was producing more torque than the DME would allow and we kept getting a transmission fault code.
See adverts offers and special deals of interest to you by allowing our trusted Google advertisers to use targeted interest based advertising cookies. Numerous turbo upgrades are available for the BMW N55 engine but Pure Turbos is the way to go. [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. Our advertising partners may also use cookies in accordance with their respective privacy policies to provide adverts of most interest to you based on sites you visit and search terms and collate interest based statistics to do so. History, Power & Specs of the N55 Engine. Comments are used to improve the accuracy of these articles which are continually updated. The results are noticeable and with supporting mods bring another 70hp to the party in the upper RPM’s. BMWのシリンダーバンク包括的マニホールド(CCM)と呼ばれる排気マニホールド設計は、スロットルラグと排気バックプレッシャーを減らすために圧力変動を減らすことを目的としています。ツインスクロールターボチャージャーは、1-3と4-6のシリンダーで、1タービンホイールを回すために排気ダクトの2セットを使用しています。エンジン管理システムはボッシュMEVD 17.2です、 Because one exhaust runner dumps its exhaust on the smaller, inner part of the exhaust turbine it can spool up faster. ターボチャージャーは三菱重工業製(TD03-10TK3型)を2基搭載するツインターボ, M52をW-VANOS化し、低中速域の大幅トルクアップ *B24は、タイ向け。日本未導入, マグネシウム合金を使用し、M54型比10キロの軽量化。エンジン全長を4センチ縮小。(マグネシウムバルブトロニックは6気筒モデル初採用。ダブルVANOS、電動ウォーターポンプ, B38:3気筒1.5L、B48:4気筒2.0L、B58:6気筒3.0Lという1気筒あたり500ccの新世代モジュール型エンジンである。, 直列6気筒をベースに直噴直接燃料噴射(コモンレール・ダイレクトインジェクションシステム)と可変ジオメトリーターボチャージャーを組み合わせた3.0L直列6気筒ツインパワーターボディーゼルエンジンは、最先端の排ガス処理を行う。, トリプルターボディーゼルは、回転数や負荷に応じて3基のターボを順次稼動させる。最大トルクはM5を上回る75.5kgmを獲得。, 直列6気筒・NAエンジン(2.5L/3.0L) → 直列4気筒・直噴ターボエンジン(2.0L), V型8気筒・NAエンジン(4.0L/5.0L) → 直列6気筒・直噴ターボエンジン(3.0L).
Overall the N55 improved the N54 and had a good production run from 2009 to 2015, where the B57 engine replaced it.
Their Stage 1 upgrade uses the stock turbo housing which is a Borg Warner B03 Twin Scroll. Extending exhaust or intake durations can alter the torque band and on most engines the exhaust and intake durations do not need to match, although most cams and tuners use matched pairs there are some advantages to extending the intake or exhaust durations. https://www.pinterest.com/diyautogalaxy/, We’ve also started posting some videos on Youtube and here’s one of DIY Detailing vids https://youtu.be/xNJ7iIidJM8, BMW X1 35i Sleeper Project – Not so Sleepy Anymore but Awesome, Tuning The JB4 With Meth BMW E84 X1 35i FBO Pure Turbos S1, BMW X1 35i E84 Project Sleeper – This is Going to be Fun :), The BMW E84 X1 35i and Why You Should Buy One, Lamborghini Huracan Finest Signature Detail by RV Car Care, BMW X3M Competition 0-60 and 2,000 Mile Review – 1 Awesome SUV, BMW N55 TwinPower Turbo Explained and It’s Awesome. The BMW N55 TwinPower turbo is a single Turbo engine with two separate exhaust runners powering the hot side of the turbo. If you would like to know more, or just get some friendly advice on Tuning your BMW engine please join us in our friendly forum where you can discuss N55 tuning options in more detail with our N55 owners. All Rights Reserved. amzn_assoc_ad_type="responsive_search_widget";amzn_assoc_tracking_id="4gcadmin-22";amzn_assoc_marketplace="amazon";amzn_assoc_region="JP";amzn_assoc_placement="";amzn_assoc_search_type="search_widget";amzn_assoc_width="auto";amzn_assoc_height="auto";amzn_assoc_default_search_category="";amzn_assoc_default_search_key="BMW";amzn_assoc_theme="light";amzn_assoc_bg_color="FFFFFF"; そうですね。バッテリーは高いと聞いています。機会があれば維持費周りの計算なども記事にさせていただきます。. N55B30A型エンジン N55B30AではN54B30A小型ツインターボから大型シングルターボへと変更。 N55B30Aでは直噴(直接燃料噴射)とバルブトロニック装備。 We have tips on removing carbon buildup. Fuel becomes an issue when you get north of 20 psi and we were plagued with check engine lights under racing conditions. Where They Came From. 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]. バルブトロニックとの併用として、インテークバルブの無段階制御を行いバルブの開閉ロスを抑制する。 Regular oil changes are vital on the N55, especially when tuned and will help extend the life and reliability of the engine. Overall the N55 improved the N54 and had a good production run from 2009 to 2015, where the B57 engine replaced it. The second exhaust runner is focused on the larger, outermost part of the turbine.
Remaps helps unlock the full potential of all the parts you've fitted to your N55. Thanks!
Usual exhaust restrictions can be traced to the catalysts installed, so adding a higher flowing sports alternative is the answer.
The N55’s single turbo has its limitations at higher RPM’s. 後継のB型エンジンは3,4,6気筒とシリーズ化され共通パーツ化(コストダウン)を前提としたエンジンですが、N55B30Aは、6気筒専用モデル最後のエンジンとなります。N55エンジンは、2009年に生産開始され、F07 5シリーズグランツーリスモに導入。ツインスクロールターボ(シングルターボ)を使用するBMWの最初の直列6気筒です。2011-2013年に「Ward’s 10 Best Engines awards in 2011-2013」のベストエンジン賞を3回連続で受賞 Altering your camshaft will make a dramatic difference to the engine bhp. Don't go with the widest exhaust you can buy this will slow the exhaust rate - the best for power gains are usually between 1.5 to 2.5 inches. Les injecteurs piezo s'étant révélés très chers, BMW a décidé qu'ils n'étaient pas intéressants en Amérique du Nord, comparé à l'Europe où ils fonctionnaient plutôt bien[3]. 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 had the solenoid injectors and not the Piezo's that were used in the N54 engine, these helped with the lean burn aims, however this was not used outside of the European market. 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. 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。 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。 Please let us know if there are any other problems or issues we have missed.. Two of the most popular turbocharged BMW engines are the N54 and N55. The N55R20A is Alpina's initial version of the N55, producing 301 kW (404 bhp). Both engines have the same displacement of 2,979 cc (181.8 cu in) and a 10.2:1 compression ratio but the turbo setups make the difference. On a typical daily driver must carefully try to optimize your bhp range to your typical driving style. Both of the turbos on the N54 are of equal size and configuration.
Let’s start from the beginning and talk a little about where the turbo came from.
(タービン径:39mmツインターボ→53mmシングルターボ)
It was introduced in the F80 M3 and F82 M4, replacing the BMW S65 naturally aspirated V8 engine used in the previous generation M3.
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