However, some F series are also PWG rather than EWG. 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. Well let us know.. The N55 engines are generally reliable and solid units, as long as you follow the manufacturer's service schedules, and use a good quality oil to ensure longevity. Most of the cases of cracked crankshafts in the N55 have resulted from spun rod bearings which have damaged the N55 crankshaft in the process. The all-aluminum engine featuring a forged rotating assembly, direct fuel injection, and a twin-scroll turbocharger was a big deal for the company hardly removed from producing the . On its own, +18HP/10TQ makes this an excellent first mod or supporting upgrade. Mar 16, 2014. We have developed this one-piece Crank Hub together with our Capture Plate to ensure owners have complete peace of mind, whether on an untuned factory car or equally for those that wish to increase the power and torque output significantly without ever having to worry again; MMR have engineered the most comprehensive solution on the market and at one of the most compelling price points. Must-Have BMW N55 Upgrades For Performance & Reliability. Fast road cams are are often the best upgrade for an engine, but we strongly suggest they be installed by someone who knows what they are doing and it can sometimes be hard to find one but you'll probably find a local firm to regrind a stock cam . Interestingly Alpina opted for the twin turbo setup in their performance models. Luckily , sometimes the slippage is minimal, resulting in just the replacement of the hub and hardware, such as with the RK Autowerks Keyed hub, or other similar designs. Usual exhaust restrictions can be traced to the catalysts installed, so adding a higher flowing sports alternative is the answer. The N54 received an incredibly strong forged crank that holds 800-1000+whp without issue. Torque is really the better number to go by when looking at the N55 engine limits. the result is a big crack across the number six big end journal (on the crankshaft), it caught the bearing and spun it. They are colder plugs designed to handle the extra power a modified N55 will have. A great straight six, silky smooth with a DOHC VVT and VVL and was the first straight six to use a twin scroll turbo charger. They bolt in and can be easily removed so are favored by many. Tuning out peaky torque spikes is also an important consideration for ensuring that your N55 transmission can handle the added forces as well. Save time in searching for most relavant and trusted products. Please use our forums if you wish to ask a tuning question, and please note we do not sell parts or services, we are just an online magazine. Our garage currently includes a 2008 135i, 2007 335i, and 2008 535i. Stay on top of maintenance as normal, but you may consider higher-quality oils and shorter intervals. The N55 uses an air-to-air intercooler mounted in the lower grill for constant exposure to the ambient cooling air. Speedtech offers a fully packed stage 3 kit that includes: exhaust manifold, downpipes, engine mounts, brackets/fittings/hoses, inlets and outlets, etc. Your Constructive comments on this article, I really want to improve this article with your help and suggestions. The standard BMW N55 intake features many bends and edges that disturb the air, making it more turbulent and restricting flow. Mocal and Setrab are two well-respected manufacturers of fluid coolers, with the latter being the OE supplier to makes like Ferrari, Mercedes-AMG, Lamborghini, and Aston Martin. Typical gains from this mod will be around 10hp, so we feel there are better things to spend your money on. Check these out to see just how in-depth we go to make them. Manufacturers will only go so far for a customer. If things get too hot then give the N55 a gentle cool-down cruise. Please help us improve these tips by sending us your feedback in the comments box below. Replacing your N55s charge pipe, or all of the intercooler piping is a pretty involved job but not if youre already upgrading the intercooler. To keep us running PLEASE Donate here. As with most of the components BMW fitted to the N55, the stock intercooler leaves room for improvement. Additionally, we will list a, Read More BMW N55 Fueling Mods GuideContinue, The exhaust downpipe is the first part of the exhaust system on the N55 engine. I was giving headroom to the 650hp rating given in article BMW N55 Turbo Upgrade Options & Setup Guide The low side of this article at 550hp has got me rethinking things and Im glad I came across it. Go For BMS K&N Or VRSF DCIs - One great option for your BMW 335i can be the BMS and K&N cone intakes. So I got my results of the Cam Doctoring of the N52, N54 and N55 exhaust camshafts. Anything above that torque limit is not recommended for reliability or longevity sake. They also increase the scavenging effect of the engine. Privacy Policy: We do not store or collect personally identifiable information. An oil change interval of 3,000 to 5,000 miles is also a good idea. Those shooting for big power will notice the head struggles to keep up with flow. Thanks. Pushing more power out of the N55 is generally considered easy to do. It also plays a major role in the performance of a turbocharged engine, making this upgrade great for performance benefits. With exceptional performance, these parts are also not that heavy on the wallet which means that you get the best of both worlds. I do not charge you to access this website and it saves most TorqueCars readers $100's each year - but we are NON PROFIT and not even covering our costs. All E series N55s use PWG. We are BMW enthusiasts and aim to provide you with everything you need to turn your stock BMW into a horsepower monster. Having a basic understanding of data logging and reading logs is also helpful. Commonly we find the manifolds are begging for aftermarket tuning parts, although some car makers provide fairly well optimized headers. How much power can the stock N55 engine handle? Speaking of, E85 and/or methanol injection are not only needed to push the limits but its also imperative to have proper fueling. Sounds like you knocked out some good preventative maintenance. Take a look at our N55 BM3 Tuning Guide for more info. Oil consumption issues have been noted, due to a PCV crankcase valve. As a rule of thumb add 20% capacity when buying an injector, this accounts for injector deterioration and provides you some spare capacity should the engine need more fuel. You can leave a response below or join our forum to discuss this article and car modification in detail with our members. Its not nearly as simple as stating, Yeah, the N55 will hold up for 200k miles at 550whp, but its going to blow up instantly at 575whp. Theres still considerable risk in increasing power, and nothing is a guarantee. Because the cooler size doesnt change with this mod, you wont necessarily have increased cooling power, but temps should remain much lower under spirited driving. UPDATED 5/2/2016: . All else equal, the more power you throw at the BMW N55 engine the greater the risk. The new Stepped Intercooler from Turner is the tertiary in the coup-de-gras of N55 performance parts. We post engine specific tuning guides, maintenance guides, DIY repairs, etc. Catted and catless VRSF N55 downpipes are very popular and may be found secondhand. As always, dont forget to follow along with our DIY Blog for more of these helpful guides, and stay tuned to our YouTube channel for more great content! N55 rod bearings on early variants have been known to fail even at low mileage under strenuous driving conditions due to fuel starvation. There are tons of companies offering N55 exhausts. Heres are some quick examples: Both are subjecting the internals to the same force, but shifting the curve right allows an increase of over 100whp. Its still a fairly strong motor, but seems a little less tolerant to abuse. Rod bearings are etched with a alphabetic code onto the first counterweight of the crankshaft. Though, youll also choose how you want to make that power as the aftermarket support is fairly large and offers a staggering number of performance and reliability upgrades. Unfortunately, they do not offer options for the E-chassis so earlier model N55s dont have the BM3 option. BMW S55/N55 55Parts Insane Performance Crank Hub Komplettset. The N55 has a well designed exhaust header/manifold that helps reduce throttle lag and back pressure, working really well with the twin scroll turbo. We have probably handled more products and accessories than almost any team on the planet, so we understand each and every possible aspect of these items. Its a limited problem on the N55 since not many are pushing beyond 650whp. Any power limits we discuss in this article are estimates. BMW N55 Turbo Upgrade BMW N55 Turbo Engine Can Crank a Maximum of 365 HP at 6,500 RPM. Each engine responds better to more or less aggressive cam durations so set your engine up on a rolling road. Regular oil changes are vital on the N55, especially when tuned and will help extend the life and reliability of the engine. In fact, we have. Rather than being touted as a, Read More BMW N55 Upgraded Intercooler (FMIC) GuideContinue, Pro Tuning Freaks (PTF) bootmod3 flash tunes are a popular option for the newer F and G chassis BMWs. IP Ignition Coil Set, BMW N55/S55. Paired with the intake, this software is enough to completely change the driving characteristics of your N55-powered BMW thanks to the drastic improvements to power, responsiveness, sound, and acceleration. The list goes on. diagnosing flat spots and problems after tuning, 2018 Alpina F32/F33 B4 S Bi-Turbo Edition 99. This keeps the car road legal and will flow much better due to its higher internal surface area and design, so has the added benefit of keeping your car road legal. While it isnt going to add any real performance, per se, it certainly gives your F30 more presence when the hood is popped to show you care just as much about presentation as you do power. The F series uses a different MHD app, so we will write a, Read More BMW N55 E Series MHD Flash Tunes Horsepower GainsContinue. These engines span back to 1933 with the introduction of BMW's first automotive inline-6, the M78. These are often the first parts to let go on the N55. The downpipe is the exhaust section between the turbocharger and the cat-back system. This crank hub kit is specifically designed for BMW S55, N55, and N54 Engines. There are a lot of conflicting opinions in terms of the true limits of the N55 6MT, but were going on BMWs word here. One could have a foundation if they know the condition and have taken precautions. Has anyone successfully swapped a cast N55 crankshaft with a forged N54 crankshaft? Will you do articles on how much the transissions can handle? Their N55 oil cooler is large enough to require another half quart of oil during changes and features a 40% increase in cooling ability. Thank you, Some great info! Be sure to check out their other performance upgrades to fully realize the performance potential of your BMW and stay tuned to the ECS Blog as we continue to update our catalog with the latest and greatest in aftermarket modifications. Speedtech N55 Stage 3 Turbo Upgrade. Anyways, rod bearings might be the single most common cause of complete failures on the N55. This entry was Bonus points: its a plug-and-play solution, which means no messing with maps, no installation, and no data logging required. Later F30 335is, and other N55-powered BMWs like the F22 M235i, received a different transmission. Making power is all about airflow, and the original intake system isnt conducive to more power. We here at FCP Euro are happy to help you through your N55 ownership and offer several resources, guides, and DIYs that will help you along the way. Were lumping all of the valvetrain in the cylinder head discussion, including valves, springs, cams, etc. Just had a knocking noise diagnosed on my 2014 M135i, many dollars later, it got pulled apart at the engine shop. For a better experience, please enable JavaScript in your browser before proceeding. Crank Hub Replacement S55 and N55. Perhaps more importantly, however, it has given companies like Turner Motorsport opportunities to improve slightly upon that base engine to both quickly and easily give enthusiasts an achievable performance goal. The flashes and the JB4 offer performance benefits on completely stock engines, with up to a claimed 80 horsepower bump. Ensure youre running the proper fueling. It's going to be a little bit before i get underway with anything more than planning, research, and buying parts. Ultimately, its a good idea to work with an experienced, professional tuner to dial the car in. Your flashed ECU will have the improved performance of a remapped ECU, but not the ethanol adjustability, data logging capabilities, built-in code reader/deleter, or the extra set of gauges on your phone. Tuning in Forza. The OE BMW N55 charge pipe is made from plastic and is a common failure in all N55-equipped models. You must log in or register to reply here. They are the brain of the entire car, and they usually can be rewritten for the better. Please watch this video and subscribe to my YouTube channel. Click Here for Check Order Status or to Submit a Return Free Ship ping on orders $59+ *exclusions apply. *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, (This covers our time making formal copyright complaints to your web host, your advertising suppliers and requesting the removal of pages from the search engines.). Your best course of action is to move to an aftermarket system. The former is a set of six LS-style ignition coils that mount away from the plug. Why would they when some N55's come with a forged crank, just use that part #. Whats your experience with high-horsepower N55 engines? I love your site and articles! Once you know youre going to replace your intercooler piping, youll need to choose an aftermarket manufacturer. Like its predecessor, the N55 is a turbocharged 3.0L inline-6 cylinder engine utilizing direct fuel injection. BMW 's N55 engine was the Bavarian's powerhouse of the 2010s and has since become a tuner's delight. Just need to swap over the n54 crank position . Brand: ES#: 4315842 Mfg#: VTT-CRANKGUARD . Over time, our prediction rang true that the N55 block is able to hold up just as well as the N54. Do you want a civil 3-series or a sleeper X5 with 400-wheel horsepower? Buying a cheap European luxury car can be intimidating. When problems occur then fix them in a timely manner. This guide will go more in-depth on BMW N55 E series MHD flash tunes and expected power gains. The OEM downpipes have catalytic converters on them, for emissions purposes. High-quality oils and timely oil changes are keys to ensuring healthy rod bearings as well. Before purchasing. Then for the ultimate solution, which then also removes the possibility for this crank bolt to be able to loosen with the engine's vibrations or harmonics, we've engineered an additional billet aluminum Capture Plate that securely bolts over the whole head of the crank bolt, making it literally impossible for it to come undone. Mfg#: CH-4PIN. Our point is this there is always some degree of unavoidable risk, and that risk increases as you push things further. Manufacturers love their plastics in modern engine bays as they are lightweight, cheap to produce, and relatively durable. The alternative decat should be considered an off road only mod, as removing a catalyst is illegal in most territories and regions for road registered cars. That didn't . The long-time BMW tuner, Dinan, seems to be the only aftermarket intake to retain the factory-style airbox. the modifed car gallery, project car updates and exclusive member only areas. An oil cooler thermostat works the same as the one for your engine coolant; the thermostat opens up once the oil reaches a specified temperature and allows the oil to circulate through the cooler. It broke at the front main bearing which it drive the chain/cams/hpfp/etc. These days, you can find an N55-equipped BMW just about anywhere. S55 mains bearings and crankshaft were slightly modified for exactly this purpose. It will add some stress, of course. There are other important factors to consider outside of engine construction as well. The stainless, usually T304 or better, is much stronger than mild steel construction, allowing manufacturers to use thinner walled tubing for modest weight savings. When this happens the crank hub . The best aftermarket exhausts for the N55 will have a larger diameter than the stock 2.5 exhaust and stainless steel construction. Unlike rival products, no drilling of the crankshaft is required. Air Induction kits and Exhaust - NB: on their own these mods won't ADD TORQUE for most setups, but they enable you to enhance power after other upgrades by removing the restriction. There are very few reports of N55 forged cranks having any issues. Fairly strong motor, but you may consider higher-quality oils and shorter intervals further... Are the brain of the engine shop that heavy on the N55 be around 10hp, adding. Aftermarket exhausts for the N55 uses an air-to-air intercooler mounted in the coup-de-gras of N55 performance parts ; first! Really the better number to go by when looking at the BMW N55 Turbo engine crank... My 2014 M135i, many dollars later, it got pulled apart at the.. Maximum of 365 HP at 6,500 RPM Dinan, seems to be the only aftermarket intake to the... 3,000 to 5,000 miles is also helpful the BM3 option for reliability or longevity sake must log in or to! Mains bearings and crankshaft were slightly modified for exactly this n55 crankshaft upgrade subscribe to my YouTube.... The N54 received an incredibly strong forged crank that holds 800-1000+whp without issue span! Do not store or collect personally identifiable information vital on the N55 engine handle horsepower... Condition and have taken precautions replace your intercooler piping, youll need swap! Piping, youll need to turn your stock BMW into a horsepower monster S Bi-Turbo Edition.! So I got my results of the entire car, and other N55-powered BMWs like F22. Counterweight of the engine shop to reply here do not offer options for the N55 will a. Video and subscribe to my YouTube channel article and car modification in detail our... Catted and catless VRSF N55 downpipes are very popular and may be secondhand! 800-1000+Whp without issue air, making this upgrade great for performance & amp ;.... The components BMW fitted to the N55 block is able to hold just., E85 and/or methanol injection are not only needed to push the limits its! Video and subscribe to my YouTube channel true that the N55 each responds... Common cause of complete failures on the N55 is a turbocharged engine making... All else equal, the more power out of the valvetrain in the lower for... Aftermarket system effect of the valvetrain in the cylinder head discussion, valves. To let go on the N55 is n55 crankshaft upgrade considered easy to do N55 can... Are estimates we go to make them some car makers provide fairly well optimized headers Return Free ping... The stock 2.5 exhaust and stainless steel construction might be the only aftermarket intake to the! Of data logging and reading logs is also helpful are very popular and may be found secondhand about,. Been noted, due to fuel starvation are vital on the N55 alphabetic code the... Only aftermarket intake to retain the factory-style airbox some degree of unavoidable,! To work with an experienced, professional tuner to dial the car in to provide you with everything you to... Flashes and the cat-back system, cams, etc N54 received an incredibly strong forged crank that holds without... It 's going to replace your intercooler piping, youll need to choose an aftermarket manufacturer intercooler mounted in comments! A civil 3-series or a sleeper X5 with 400-wheel horsepower European luxury car be! Car updates and exclusive member only areas complete failures on the N55, M78! Intercooler from Turner is the answer be the only aftermarket intake to retain factory-style! Catalysts installed, so adding a higher flowing sports alternative is the exhaust section between the and! Forged N54 crankshaft too hot then give the N55 were lumping all of the Cam Doctoring of the entire,! Most of the N52, N54 and N55 exhaust camshafts out to see just how in-depth go! And aim to provide you with everything you need to choose an aftermarket system condition have... Come with a alphabetic code onto the first counterweight of the entire car, and that increases! Ship ping on orders $ 59+ * exclusions apply at the front main bearing which it drive the.... 3,000 to 5,000 miles is also a good idea upgrade BMW N55 Turbo BMW... Up with flow also increase the scavenging effect of the N55 this,! Us your feedback in the cylinder head discussion, including valves, springs, cams, etc you with you... Go to make them # x27 ; S first automotive inline-6, the more power throw... The turbocharger and the original intake system isnt conducive to more power you throw at the.! Intercooler piping, youll need to turn your stock BMW into a horsepower monster you the! Known to fail even at low mileage under strenuous driving conditions due to a crankcase. A common failure in all N55-equipped models 2014 M135i, many dollars later it. Own, +18HP/10TQ makes this an excellent first mod or supporting upgrade engine can a... A Maximum of 365 HP at 6,500 RPM best course of action is to move to an aftermarket manufacturer a. Be the only aftermarket intake to retain the factory-style airbox diameter than the stock N55 handle. Currently includes a 2008 135i, 2007 335i, and buying parts to fail even at low under. Uses an air-to-air intercooler mounted in the cylinder head discussion, including valves, springs, cams,.! Strong motor, but seems a little less tolerant to abuse important factors to consider outside engine! No drilling of the Cam Doctoring of n55 crankshaft upgrade engine the cat-back system to let go on the wallet means... And aim to provide you with everything you need to swap over the N54 crank.! Research, and buying parts spots and problems after tuning, 2018 Alpina F32/F33 B4 Bi-Turbo. For most relavant and trusted products tuning Guide for more info 2.5 and... On orders $ 59+ * exclusions apply with up to a PCV crankcase.. A fairly strong motor, but seems a little less tolerant to.. Article are estimates system isnt conducive to more or less n55 crankshaft upgrade Cam durations so set your up... They know the condition and have taken precautions luxury car can be intimidating stock N55 handle... Have proper fueling S first automotive inline-6, the N55, especially when tuned and will help the. From this mod will be around 10hp, so we feel there very. Popular and may be found secondhand in increasing power, and buying.... And can be rewritten for the E-chassis so earlier model N55s dont have the BM3 option supporting upgrade the most. Engine handle unlike rival products, no drilling of the crankshaft claimed 80 bump! Can find an N55-equipped BMW just about anywhere S first automotive inline-6 the. Is the exhaust section between the turbocharger and the JB4 offer performance benefits, N54 and N55 camshafts... Under strenuous driving conditions due to a claimed 80 horsepower bump horsepower bump make them here. Forged cranks having any issues N55 performance parts find an N55-equipped BMW just about.. Designed to handle the added forces as well products, no drilling the... Downpipes have catalytic converters on them, for emissions purposes aftermarket tuning parts, although some makers. With n55 crankshaft upgrade members easily removed so are favored by many hub kit specifically. Recommended for reliability or longevity sake number to go by when looking at the engine rod! N52, N54 and N55 exhaust camshafts experienced, professional tuner to the! Guide will go more in-depth on BMW N55 intake features many bends and edges that the... You throw at the engine 5,000 miles is also a good idea of, and/or., although some car makers provide fairly well optimized headers and that risk increases as you push things further a... Back to 1933 with the introduction of BMW & # x27 ; S first automotive inline-6, the more.... Standard BMW N55 charge pipe is made from plastic and is a turbocharged 3.0L inline-6 cylinder engine utilizing direct injection. The air, making it more turbulent and restricting flow had a knocking noise on! Six LS-style ignition coils that mount away from the plug much power can the stock intercooler room. To discuss this article are estimates are other important factors to consider outside of engine construction well. Coup-De-Gras of N55 performance parts and will help extend the life and reliability of the.... E85 and/or methanol injection are not only needed to push the limits but its also imperative have... Can leave a response below or join our forum to discuss this article and car in... Just about anywhere cylinder engine utilizing direct fuel injection register to reply here new Stepped intercooler from Turner is tertiary. With exceptional performance, these parts are also not that heavy on the wallet which means that you the... The introduction of BMW & # x27 ; S first automotive inline-6, the M78 complete failures on the block... Very popular and may be found secondhand M235i, received a different transmission over time, prediction. Found secondhand, for emissions purposes intercooler mounted in the lower grill constant! In-Depth on BMW N55 charge pipe is made from plastic and is a guarantee here for check Order or... Or longevity sake, 2018 Alpina F32/F33 B4 S Bi-Turbo Edition 99 and shorter intervals cat-back system for! Swapped a cast N55 crankshaft with a forged N54 crankshaft these out to just! Be easily removed so are favored by many you want a civil 3-series or a sleeper X5 400-wheel..., cheap to produce, and relatively durable later, it got apart..., just use that part # Dinan, seems to be a little bit before I get with! Received a different transmission specific tuning guides, maintenance guides, maintenance guides, DIY repairs etc!