you. This is in place of the air-to-air intercooler found on the N54/N55. Outside of the difference in turbochargers the N55 and N54 share many similar characteristics. The 36 month/36,000 mile warranty is honored at over 10,000 service centers across the country. In this procedure a conductive metal wire is heated until it melts. The melt is then sprayed on the cylinder barrels at high pressure. https://www.vr-speed.com/vrsf-3-stainless-steel-catless-downpipes-n54-07-10-bmw-335i-08-10-bmw-135i.html/ref/31/, http://www.e90post.com/forums/showthread.php?t=1096242, http://www.n54tech.com/forums/showthread.php?t=29236, https://play.google.com/store/apps/details?id=com.mhd.flasher.n54&hl=en, https://www.bmwn55tuning.com/how-to-build-a-400whp-n55-for-under-1500/, https://www.n54tech.com/forums/showthread.php?p=302070, https://bmwsparkplugs.com/collections/n54/products/n54-1-step-colder-spark-plugs, BMW X5 Reliability, Problems, & Driving Experience, BMW B58 Water Methanol Injection (WMI) Guide, BMW N54 Water Methanol Injection (WMI) Guide, Tuning Pro – Automotive Tuning & Performance Guides. The heat management module on the B58 is mechanically powered directly by the crankshaft through a serpentine belt. Regardless of what BMW Since there will be noises when the timing chain is operating, BMW placed a sound insulation foam between the cylinder head/valvetrain cover and the passenger cabin firewall. Let’s examine what is new with the BMW B58 engine and what the differences are between the N55 and B58 engines. The new B58 engine uses a water-to-air intercooler integrated … Increased power and torque without sacrificing fuel economy, Improved comfort in the passenger compartment, Engine displacement has increased from 2,979 cc to 2,998 cc. Each 3 cylinders on the same firing … Introduction of a heat management module to cope with the higher temperatures seen in this engine. This is driven by a bore that is smaller by 2mm (now 82mm) and a stroke that is 5mm longer (now 94.6mm), Compression ratio increase to 11.0:1 from 10.2:1, Crankshaft is forged compared to the cast in the N55, Drop-forged, cracked connecting rods with IROK coated bearings to cope with the demands of start/stop operation and the wear caused on initial startup due to loss of oil flow. Outside of this over blown issue, the S55 appears to be a bulletproof engine. Dedicated to making Supercars look slow, Click to share on Twitter (Opens in new window), Click to share on Facebook (Opens in new window). BMW’s latest engine release is designated as the B58 engine in the 6-cylinder version. While this list is not all inclusive we will do our best to point out the significant changes. Simply put, the N54 moves more air and will outperform an N55 mod-for-mod. BMW has also stressed temperature management in the B58, more so than in the N55. The first principle we need to understand with all new engine designs is to first understand what is driving the changes. Make sure to subscribe to our newsletter and be the first to know the news. The N54 engine has forged internals, meaning it can handle an immense amount of power without requiring any expensive engine modifications. BMW put a focus on engine weight distribution. This layer of ferrous material is roughly .3mm thick, extremely wear-resistant and facilitates an efficient transfer of heat from the combustion chambers to the crankcase, and from there to the coolant ducts. BMW N54 vs N55 One of the most notable differences are the turbochargers. Some people call it the ‘2JZ’ of German engines, but we think the N54 is on a whole new level. Although the oil filter cap is hiding a little bit deep in the engine bay, it is still not too hard to reach. Dedicated to making Supercars look slow, Click to share on Twitter (Opens in new window), Click to share on Facebook (Opens in new window). On the N54/55 engine, they placed the alternator, AC compressor, timing chain and engine oil filter assembly towards the front portion of the engine, therefore the engine’s center of gravity center to be front-biased. The S55 crank hub is the same design as used on the N54 and N55, and while it can and has failed on stock S55’s, it is a highly isolated problem which was improved by BMW in 2016. The BMW N54 engine featured in the 135i, 335i, and 535i is one of the most tune-able engines ever. However, to deal with the situation that the turbo still needs to be cooled after engine is turned off, an extra dedicated electric pump is added to the turbo unit to tackle this issue. BMW X5 Reliability, Problems, & Driving Experience, BMW B58 Water Methanol Injection (WMI) Guide, BMW N54 Water Methanol Injection (WMI) Guide, Tuning Pro – Automotive Tuning & Performance Guides. Your email address will not be published. upgrades. The new B-Series platform is designed to work in 3-, 4- and 6-cylinder variants. The simple answer is tougher fuel economy and emission standards globally. However, mod for mod it becomes evident the twin turbo design in the N54 is more capable. Stock Power: 300 HP BMW N55 Specs. Learn more about our employment opportunities here. We can see these consistent, but often conflicting, goals in engine designs from VW/Audi and their MQB platform, to Jaguar’s Ingenium engines to BMW’s new B-Series engines. Arguably, the most significant difference between the N54 and N55 is the turbochargers; the N54 bolsters true twin turbochargers while its N55 counterpart carries a single twin-scroll turbocharger. All rights reserved. always here to help you with BMW repairs, maintenance and performance It is impossible to service the VANOS system without taking the whole engine out of the engine bay. The twin-scroll setup allows the N55 to deliver peak torque 100rpm sooner than the N54, but that difference is hardly noticeable in the real world. Privacy Policy, The Ultimate Volkswagen/Audi Stage Tuning Guide (2020), Common Problems with the Volkswagen MK7 GTI, Timing Chain Tensioner and Chain Issues for 2.0T TSI VW and Audi Models, Luxury European Auto Service in Salt Lake, Direct-injected Bosch fuel injector (HDEV5.2) is carried over from the one used on the N55, Single twin scroll turbo is retained, but is now integrated into the exhaust manifold, Bulk of the crankcase ventilation system is incorporated into the valve cover, Other than that these are internal combustion engines with an inline-6 cylinder orientation the design elements of each start to depart pretty significantly, Reduction and optimization of internal and external engine weight, Internal engine friction reduction and improved thermal management. Valvetronic used on the N55 is the 3rd generation, and the one that on the B58 is the latest 4th generation. This is in place of the air-to-air intercooler found on the N54/N55. We are committed to providing Salt Lake City and the surrounding areas with the best and most reliable auto repair. The N54 features a true twin turbo setup while the N55 receives a single twin-scroll turbo. Inside the module, coolant flow rate is adjusted by a rotary valve. However, the VANOS system is a huge pain for maintenance since it is located right behind the engine and extremely closed to the firewall. The closed block design is stronger, but it is heavier, more expensive and restricts coolant flow requiring upgraded coolant system. The cylinder walls of the B58 engine are coated with electric arc wire spray (LDS). The single turbo in the N55 is a larger turbocharger which produces the same power as the N54, stock for stock. Normally, we look at what has remained the same Give us a call at (801) 566-6115 to discuss what we can do for Elimination of iron cylinder sleeves. Alex’s Autohaus is a top quality auto repair and maintenance shop specializing in exotic auto repair and European auto repair in Midvale, UT. However, it copes with higher cylinder pressures better especially important since the bones of the block will be shared with diesel platforms. So, for those 340i owners that are out of warranty, please pray that the VANOS system does not break. Now utilizes an air-to-liquid intercooler integrated into the intake plenum. engine you have under the hood, remember at Alex’s Autohaus we are Alex’s Autohaus offers all customers the Bosch and Tech-Net Peace of Mind Nationwide Warranty. Interchangeability of parts for all displacement and geographic region versions. A twin-scroll turbocharger is a single turbo where the exhaust housing of the turbocharger is split into 2 “scrolls”. However, we are all a bit spoiled and don’t want to give up any power. The B58 engine will replace the N55 engine throughout their vehicle lineup. VANOS is responsible for timing adjustment, and Valvetronic is used for control the lift height of the valves and acts as the throttle body. The twin-turbo setup on the N54 does offer better performance when modified compared to the N55. between new and old engines. VANOS is responsible for timing adjustment, and Valvetronic is used for control the lift height of the valves and acts as the throttle body. 2020 Alex's Autohaus. Engine block now uses a closed deck block design from the open design found on the N54/N55. Such design brings two major advantages: (1) it significantly reduced the installation space; (2) It brings down the engine’s total height and lowers the engine’s center of gravity.

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