In this article, we lay out the N55 engine limits in a straightforward way. 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. Mfg#: CH-4PIN. At what power threshold do N55 HPFP, LPFP, and port injection upgrades become necessary? Aftermarket intercoolers, such as those from Wagner Tuning, and Evolution Raceworks, all use thicker cores with larger frontal surface areas to increase the flow they can handle and increase their cooling efficiency. Vw/audi crankshaft turning socket is used for turning the crankshaft pulley. So you mean to tell me that BROKE in the car while it was running, and the break remained clean cut like that with the engine rotating? Its engine can crank a maximum of 365 hp at 6,500 rpm and 343 lb.-ft. of torque at 1400 - 5560 rpm. DPF cleaning Not sure where we communicated about lack of damage to the main bearings. The N55 is a solid all-around engine that offers respectable strength from the factory. Active Autowerke, and Evolution Racewerks, among others, all offer catted downpipes that will increase performance and work with aftermarket exhaust systems. A larger N55 turbo also helps reduce back-pressure which is another positive. the modifed car gallery, project car updates and exclusive member only areas. Some names to consider are AWE Tuning, Remus, and Supersprint. Sign up now!!! 215.462.4666 sales@vacmotorsports.com . Required fields are marked *. N55 cranks are a tough one. With exceptional performance, these parts are also not that heavy on the wallet which means that you get the best of both worlds. styling and friendly car banter. Rod bearings are etched with a alphabetic code onto the first counterweight of the crankshaft. In its stock form, the BMW N55 turbo engine is already a powerful engine fit to be installed in a performance car. Turn boost down until your N55 is fixed and running well. As with the B58, the N54 features a strong forged crankshaft. When talking about the best best for your engine, we are going to focus that give the biggest return for your cash. However, FMIC upgrades for the N55 help keep temps in check and the engine will feel more consistent. Do you want bungs for methanol injection? Thank you for your comment. The BMW N55 is a turbocharged straight-six petrol engine that began production in 2009. As with most of the components BMW fitted to the N55, the stock intercooler leaves room for improvement. Consider installing a larger oil cooler to avoid any issues. Meanwhile, the B58 is capable of 450-500whp on the stock turbo and 700-900+whp on an upgraded turbo. We are hoping to soon add an F80 M3 and F82 M4 GTS. Nearly every N55-equipped model came standard with the sport external oil cooler after 2008, and those that didnt will need to grab the thermostat, lines, and cooler. Stick to the conservative side of things. Some claim to have already run into crankshaft issues on the N55. You will also have full access to However, there are some gems out there that won't break the bank. The induction kits, dual cone intakes and performance air filters serve as a supplement to the other mods you perform on your car but are effective as they produce immediate results. Yes, the N54 and N55 can experience spun crank hubs. Automotive Replacement Engine Crankshafts. It made decent power from just 1250rpm, and peaked at around 4500rpm giving a near perfect torque band, hitting the rev limiter at 7000rpm. I wouldnt skimp on safety. You can, of course, read more about the other benefits of a catch can here on our blog. Stock N55 Limits - Crankshaft (700+whp) N55 cranks are a tough one. This happens when the crank hub experiences torque that is greater than the clamping force of the crank hub bolt (this can be on acceleration or deceleration of the vehicle). Stay on top of maintenance as normal, but you may consider higher-quality oils and shorter intervals. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Our site is dedicated to all things BMW Tuning related. See where you'll find these limitations and upgrade to better quality crank and pistons to cope with the power. Displacement: 2979 cm 3 / 181.8 inch 3. If things get too hot then give the N55 a gentle cool-down cruise. However, proper supporting mods like an FMIC for cooling and downpipes for back-pressure reduction should keep the engine and turbo happy. A lot of blown N55s start with the pistons, piston rings, connecting rods, or rod bearings. 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. This tool is needed to prevent your seal from leaking. The N55s stock oil cooler thermostat opens up right around 120c. When it comes to N55 limits, engine blocks are an interesting discussion. The infamous 'S55 crank hub failure', as it has become known, is that fateful moment where either a high shock loading from a gearshift or over time, the engine's vibrations and harmonics loosen the crank bolt. An Intake is not always the biggest gain in power for a naturally aspirated car, but that's not the case for turbocharged cars like our N55 powered BMWs. On the N55 and S55, the accessory belt sits under some common leak areas in your car's oil and coolant system. Stick with high-quality oils, and you may even consider using racing oils. We also dive into a deeper analysis of BMW N55 strength and limits. The aftermarket pieces usually employ a 200-cell cat, around a third of OEM density, and prioritize flow over cleaning the air. LAKE ZURICH, IL 60047 Some of our members have had issues with flat spots or glitches after applying mods and upgrades or tuning, this is not usually related to the design of this engine, so instead see our article on diagnosing flat spots and problems after tuning which should help you get the bottom of this issue. Dual 1/2" square drive & 22mm square drive with 12mm rotating pivot pin. Your email address will not be published. Simply check the box for the appropriate "Lift Kit" upgrade when flashing. Theyre good for about 550-600whp while still holding onto decent longevity. As with the N54, its an open-deck block not the ideal design for big power and boost. 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. Following the introduction of the BMW B58 engine in 2015, the N55 . Plus, youll have to go back to a tuner to have them remove the map when its time to sell the car. Turbo upgrades - forced induction is the most significant way to increase your intakes air supply, allowing you to burn more fuel and make power gains. Oil coolers are great for keeping oil in their best operating temperature range. Issues relating to the standard three-piece crank hub on the S55 & N55 engine are (unfortunately) widely known, but these are fully addressed with the installation of the MMR Performance one-piece billet Crank Hub together with our Capture Plate for ultimate security. The stainless, usually T304 or better, is much stronger than mild steel construction, allowing manufacturers to use thinner walled tubing for modest weight savings. The BMW X5 is a stylish choice for your next family and race car hauler. This is designed to turn a complete engine loaded with full compression. $1099.00. Remapping Diesels This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. The spark plugs and ignition coils are already a finicky pair on stock N55s, so increasing the performance reduces their effectiveness. The one-piece design ensures the friction plates can no longer slip and with a new crank bolt tightened appropriately, this alone delivers the transformational improvement in reliability versus the OE version. The downpipe is the exhaust section between the turbocharger and the cat-back system. Well answer these questions and then some. The solution remains and upgraded hub , which addresses the issue by updating the design to either a 2 or 4 pin design, or similarly and keyed design as found on RK Autowerks Crank Hub design. We have a twinchargerbhp and torque adding guide if you want to read more. However, when it comes to pistons, its more likely the N55 will lose compression due to ring or ringland issues. Upper Main Bearing Codes (not N63/S63): A slightly more involved option, but a complete kit is the Sports Series Oil Cooler Kit from Evolution Racewerks. Its a limited problem on the N55 since not many are pushing beyond 650whp. Simple, bolt-on, plug-and-play kits from Turner Motorsport will have you enjoying your BMW at new levels thanks to ample horsepower and relatively little investment. 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. The initial air intake happens through a small hole in that airbox. Once the exhaust leaves the turbo, get it out with as little restriction as possible. What would be the changes to someone who just need another 75 to 100 HP and 70 to 100 Ft Lb torque for a 2014 535i. Thanks. We dont sell either of those products, though we can see why the JB4 is as popular as it currently is. Although still a guess, depending on the condition. Piggybacks work by altering the signal sent to the cars computer. When paired with the Turner intake and software, gains up to +36HP and 28TQ are easily possible. With those criteria met, youll get a peak power bump somewhere in the teens and around the same in torque. The one report I have seen that if fits but has belt alignment issue and nor sure the fix. Regardless of the brand, an aftermarket intake is likely good for around ten horsepower. Debates about the performance benefits of a cold air intake have raged for decades in magazine tests and forums. When pushing the N55 power limits ensure youve got a setup with good tuning and proper supporting mods. Do you want a civil 3-series or a sleeper X5 with 400-wheel horsepower? Pushing more power out of the N55 is generally considered easy to do. BMW N55 Engine Rebuild Tools: https://amzn.to/3uHUwh5 Parts: https://amzn.to/37W6GsSPart 3: https://youtu.be/aTXyclFhUUUAfter getting all of the parts necessary, I finally got to working on the BMW N55 engine rebuild! Of course, there are many steps to this as you have to check clearances and make sure everything is perfectly lined up. How does E85 affect the N55 fueling limits? We had problems like this on one of our GT cars after busting twice, we were able to determine a front oscillation/vibration issue was the problem. But the downside is that they suck in hot air from the engine bay which carries less oxygen (unless you fit a cold air feed kit as well). Precision Raceworks and Dinan offer aftermarket ignition coils. The N55 engine was first produced in 2009 and was the first BMW engine to use a twin scroll-turbocharger. After the bearings were installed, I test fitted the crankshaft in the engine with Plastigauge on all of the journal, torqued the crankshaft bolts and then took it back apart. However, others on forums have reported success with the other brands. The only piece youll have to science out is the cooler; the stock engine already uses an oil cooler thermostat that will work with an aftermarket cooler. Calculate MPG This kit alone reduces weight and intake air temperatures while simultaneously improving the rate and volume of airflow directly to the turbo. Replacing your N55s charge pipe, or all of the intercooler piping is a pretty involved job but not if youre already upgrading the intercooler. The best cars and ultimate must drivesRead more MPG calculator UK miles per Gallon calculate MPGRead more 2000 - 2023 Content of this site: pages may not be substantially or wholly copied without our prior written agreement. Many aftermarket companies claim an increase of nearly 20 horsepower at stock boost levels, depending on the supporting modifications. The one-piece Insane Crank Hub kits are designed and manufactured in Lithuania and made from a solid block of thermally absorbed, heat-treated steel. How much power can the stock N55 engine handle? It turns out a simple process issued by BMW is the fix. Two extended 12.9 Grade bolts, and two stainless washers. LS cranks have broken due to a damper problem. Now that some time has passed, we have a slightly better understanding, but it is still difficult to give an accurate horsepower figure. Engine Components / Connecting Rods. 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. Why would they when some N55's come with a forged crank, just use that part #. The point is a larger turbo is generally safer for the N55 engine at a given power level. 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. Here is a pic of a broken ls crank to show LS cranks are flawed too. Our advertising partners also use cookies. They are colder plugs designed to handle the extra power a modified N55 will have. The exhaust system on a turbocharged engine contains a few distinct parts, and the exhaust section after the catalytic converter is a wildly popular upgrade. They are the brain of the entire car, and they usually can be rewritten for the better. Any power limits we discuss in this article are estimates. In order to see the full potential of this upgrade, it is highly recommended to upgrade to the larger S63 EU5 Injectors. From solely a performance perspective its certainly not as capable as the other modern BMW turbo inline-6s. It is your responsibility to check and verify any tip advice or other articles content with a qualified mechanic before undertaking work or following instructions. However, there are some general safe limits for the N55 engine. Rod bearing problems are a hot topic for N55 limits. Currently, the JB4 tuner is all the rage, and its easy to see why. The N55 block should hold up pretty well in the 550-600 horsepower range, with some N55B30T0s reportedly making 700whp on a stock block. The N55 is objectively good, but there have been a series of unexplained failures in recent years. Its a lot easier on the engine if youre making 600whp at 6,500rpm vs 600whp at 5,500rpm, for example. 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! Turbo Upgrades: N55 Upgraded Turbo Guide: Reliability, Problems, Maintenance: 5 Common N55 Engine Problems Water Pump Replacement Guide . The BMW N55 engine is a younger brother to the N54 and first came out in 2009. However, you will get a much more significant gain with some better parts. VTT "Spline Lock" Crank hubs are CNC manufactured from 440C tool Steel with a Rockwell rating of HRC60 for the ultimate in durability, and toughness. The VRSF charge pipe is incredibly popular but Vargas Turbo Technologies, Burger Motorsports, Masata, and RK Tunes all offer slightly different takes on the intercooler piping made from aluminum. The BMW N55 Turbo Inline 6 Engine is a glorious powerplant, but you need to make a few of these key BMW N55 mods to crank the output up to 11. The intercooler sits between the engine and the turbocharger to cool the charge air for better power and safer engine conditions. Flukey failures happen. The Cheapest, Most Reliable Mercedes-AMG Cars Ever, Period! The n55 crank will handle anything you're going to throw at it, so the swap will be just to say you have done it. "Thanks for reading our N55 tuning guide". PTF BM3 offers an excellent web interface and mobile app for easy N55 tuning. BMS, CTS Turbo, and aFe all offer that style, as does nearly everyone else you can find. Oil consumption issues have been noted, due to a PCV crankcase valve. For a better experience, please enable JavaScript in your browser before proceeding. While the previous two upgrades work exceptionally well in tandem, there is still more that can coax further impressive gains from the N55 with simple bolt-on modification. 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. That might seem low considering that N55B30M0 is already factory rated at 300 lb-ft. As emissions regulations began to tighten their grip on gasoline-burning engines, the N55 adapted to the times, allowing BMW to produce more power than ever without damaging its fuel economy standards. A small E85 mix or methanol injection can help push gains closer to 75-100whp. Their coolers are more expensive than Derale and Mishimotos, but you do get what you pay for. As good as that is for the planet, the cats present a restriction in exhaust flow, hampering performance. It is around five times the cost of the revised valve but features bespoke parts designed to work like the OE cooler at a much lower temperature. The OE crank hub unit's friction plate are known to slip, causing the timing to alter enough that piston-to-valve contact can occur and, if not totally standard and within the warranty period, leaves owners with a very expensive repair bill! Well avoid getting too technical and writing on and on about this. What are the limits on the BMW N55 block, rods, pistons, crank, etc? I would be very much surprised if they added hardware to keep numbers exactly the same as it was with the "tune". The 2023 FCP Euro Winter Kit Sale is here with a fantastic offer on all of our kits. Secondly, it is 100% billet, with no welds on the tabs to break, no cheap bent thin steel pieces. Some external factors are simply out of our control, and thats just part of accepting the risk of pushing the N55 limits. Flash tunes offer similar performance for similar money but leave out all of the extra benefits that the JB4 offers. These are often the first parts to let go on the N55. Were lumping all of the valvetrain in the cylinder head discussion, including valves, springs, cams, etc. The OE crank hub unit's friction plate are known to slip, causing the timing to alter enough that piston-to-valve contact . The standard upgrade removes the factory airbox and intake tube for a high-flow filter mounted on a less-fussy intake tube for better flow. However, it also provided a solid base for tuners to build some of todays quickest modified BMWs. Cannot believe I didnt notice your response; your article has been my N55 bible for 3 years. BMW N55 Engine Rebuild Tools: https://amzn.to/3uHUwh5 Parts: https://amzn.to/37W6GsSPart 3: https://youtu.be/aTXyclFhUUUAfter getting all of the parts necess. Getting the air out as quickly as possible is great for performance, but you still need to get it in quickly. Installs crankshaft front seal & wear sleeves on all 6.4l fo-rd power-stroke engines. $999.95. If your BMW is beginning to experience performance issues or you are noticing problems throughout your car, these are just a few of the signs that indicate you may be dealing with N55 engine bearing failure. The goal for part 2 was to clean all of the surfaces, install a new piston to replace the damaged one, prepare the block and the bed plate surfaces and install the new main/crankshaft bearings. 0. Customize a car bhp and torque adding guide if you want to read more. Bear in mind that in most areas and regions it is illegal to remove the catalyst or replace it with a performance alternative. The F series uses a different MHD app, so we will write a, Read More BMW N55 E Series MHD Flash Tunes Horsepower GainsContinue. However, N55 engines receive a standard cast crank. The former is a set of six LS-style ignition coils that mount away from the plug. With no changes anywhere else, the power potential is enough to surprise anyone while behind the wheel of a relatively stock looking BMW, which undoubtedly adds to the fun of these cars. The most straightforward workaround is an aftermarket downpipe with a high-flow catalytic converter. Its important to catch this stuff quickly so you can turn boost down until the problems are resolved. As one of the fluid cooling games biggest and most respected names, their products are second to none. Any updates on the n54 crank swap on the n55? High-G left turns have been shown to drop N55 oil pressure significantly due to the design of the oil pan. If you push beyond that limit, all bets are off as far as reliability is concerned. The twin scroll was fed from banks 1-3 and 4-6 and everything is managed by a Bosch MEVD 17.2 ECU. 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. Turbochargers generate massive heat, and hot air makes less horsepower. Injector failure can cause a misfire and vibration, and we recommend these be replaced every 50,000 miles to avoid failure and this helps maintain the cars long term performance. When pushing the N55 limits, a small issue can turn into a major one. BMW was not consistent on which codes correspond to specific colors. Flowing and porting the Head - Head work will get air flowing into the engine while removing turbulence or restrictions. Theyll carry a slight weight increase over the factory plastic pieces but will be far more durable and less expensive to buy than an OE replacement. Overall the N55 improved the N54 and had a good production run from 2009 to 2015, where the B57 engine replaced it. It bolts-up straight to the turbocharger and passes air from the turbo to the cat-back portion of the full exhaust system. *Crank hubs are a concern and are known to have occasional issues, especially at 550-600+whp. The OEM downpipes have catalytic converters on them, for emissions purposes. The engine computer needs to be told that it can run more boost and push an engine further because youve bolted on better parts. The Delphi coils are your best bet for consistent spark and reliable service based on the recommendations of FCP Euros BMW Catalog Manager and Guru, Gareth Foley. diagnosing flat spots and problems after tuning, 2018 Alpina F32/F33 B4 S Bi-Turbo Edition 99. Like its predecessor, the N55 is a turbocharged 3.0L inline-6 cylinder engine utilizing direct fuel injection. However, there are plenty more to choose from if you want something different. Comparable to vw/audi factory tool t40058. An oil change interval of 3,000 to 5,000 miles is also a good idea. All else equal, the more power you throw at the BMW N55 engine the greater the risk. hbspt.cta._relativeUrls=true;hbspt.cta.load(3867393, '95a320c9-3296-4e09-83b0-65ae33cb818e', {"useNewLoader":"true","region":"na1"}); BMWs N55 engine was the Bavarians powerhouse of the 2010s and has since become a tuners delight. Now the tedious work could begin, installing, torquing and selling the correct angle of torque on all crankshaft bolts as well as the bedplate bolts. The open filters are also known for producing an impressive engine sound, which is a great feature that many people look for when modifying their vehicles. Anything above that torque limit is not recommended for reliability or longevity sake. S55/N55 Crank Hub Upgrade. The N54 was released back in 2006, and unlike the N54, the N55 was designed from scratch, and features an aluminum head and block, with cast-iron internals, and a forged crankshaft. I know what happened it thought it was an n54 lmao. We wrote an article about basic N55 bolt-on mods here. Tuning and supporting mods are one of the most important topics. Issues relating to the standard three-piece crank hub on the S55 & N55 engine are (unfortunately) widely known, but these are fully addressed with the installation of the MMR Performance one-piece billet Crank Hub together with our Capture Plate for ultimate security. Fits small block chevy, chevy v6 and 4 cylinder engines. Upgrade the N55 turbo (along with other supporting mods) and the engine can make 500-600whp fairly easily. UPDATED 5/2/2016: . Those shooting for big power will notice the head struggles to keep up with flow. Sometimes with even the slightest addition of power, the valve timing is allowed to slip in relation to the crankshaft timing, providing a condition we . This entry was A new version of a popular previous video; created due to our ongoing focus on production values.Ben details the steps Hack Engineering takes to safeguard th. Nonetheless, the general rule applies. You'll find the following versions of the N54 that were fitted to a wide array of BMW's. You can leave a response below or join our forum to discuss this article and car modification in detail with our members. Crank Hub Replacement S55 and N55. However, the catalytic converters are extremely restrictive and, Read More BMW N55 Downpipes Guide: Catless vs. High-FlowContinue, Were finally following up our general MHD post. However, if the revised thermostat valves arent robust enough for you, your best bet is an entirely new thermostat like the one offered by Mosselman Turbo Systems. Nothing else as far as internals go. Depending upon the maps and the supporting mods youve done for your car, expect to see a horsepower increment of 60 to 80 hp with these tuners. You are using an out of date browser. Induction Kits An FMIC is also a great mod that you might find a lot of joy in. Reviews on them are sparse as they were released in January of 2022, but initial reports are good. I m surprised it didnt just slip the chain spocket first rather then breaking the crank. As you look around the aftermarket offerings, youll find one style is the most popular. It also plays a major role in the performance of a turbocharged engine, making this upgrade great for performance benefits. The N55 was BMW's first straight-six engine to use a twin-scroll turbocharger.It also won three straight Ward's 10 Best Engines awards in 2011-2013.. For those of you keeping track at home, with the Turner Motorsport Intake, Software Module, and Stepped Intercooler, your N55 should be pushing 120+ more horsepowers than it did from BMW, all with the reliability and drivability left uncompromised thanks to the bolt-on nature of the parts and a conservative tune.
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