Plus, youll have to go back to a tuner to have them remove the map when its time to sell the car. Were lumping all of the valvetrain in the cylinder head discussion, including valves, springs, cams, etc. Make sure this fits by entering your model number. To make the search for power a bit easier, check out this guide to boosting the performance of your boosted BMW engine. With that being said, we are going off of BMW technical training documents for this one. $999.95. $1,101.90. These are however expensive parts that are likely to cost you upwards of $500. 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. Flowing and porting the Head - Head work will get air flowing into the engine while removing turbulence or restrictions. Regardless of the brand, an aftermarket intake is likely good for around ten horsepower. CP-FPS-N55 . The MMR Performance one-piece crank hub is machined from billet EN36 that's been heat-treated with a 0.75mm case hardening, making it incredibly strong and durable. Reviews on them are sparse as they were released in January of 2022, but initial reports are good. Your Constructive comments on this article, I really want to improve this article with your help and suggestions. Nonetheless, the general rule applies. 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. Its not going to gain much peak horsepower on glory runs. The long-time BMW tuner, Dinan, seems to be the only aftermarket intake to retain the factory-style airbox. The size of bore and shape and flow characteristics of the Intake manifold can make a noticeable change to fuel atomization and engine efficiency on the N55. 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. Please watch our video which covers 11 of the best N55 Mods & Upgrades. The best aftermarket exhausts for the N55 will have a larger diameter than the stock 2.5 exhaust and stainless steel construction. Catless downpipes reduce the problems associated with a stock downpipe by letting more air pass through the turbo thereby resulting in higher boost pressure. 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. I have a N55 crank for sale if you want to go that route. Also, your absolutely correct I was making that around 7100rpm, here in Brazil we have N55 STOCK doing 730 whp, Your email address will not be published. Its still a fairly strong motor, but seems a little less tolerant to abuse. You can say we are somewhat N54 fanatics. If you liked this page please share it with your friends, drop a link to it in your favourite forum or use the bookmarking options to save it to your social media profile. An Intake Upgrade. Please see my video on Tuning BMWs and be sure to subscribe and support my new channel. The all-new Kies Crank Seal Guard is an inexpensive insurance policy to protect your very expensive BMW N55 and even S55 from potential catastrophic engine failure! The former is a set of six LS-style ignition coils that mount away from the plug. Is your intercooler's inlet and outlet the factory size? The list goes on. 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. Copper washers might do the trick, but i'd prefer a . Choosing a higher performance camshaft profile raises the bhp accordingly. Your feedback and comments are used to keep this page up to date and help improve the accuracy of these articles which are kept updated and constantly revised. Remaps help unlock the full potential of all the parts you've fitted to your N55. However, there are some general safe limits for the N55 engine. This can be used along with an oil pump primer to pre-lube the engine. Like its predecessor, the N55 is a turbocharged 3.0L inline-6 cylinder engine utilizing direct fuel injection. Well let us know.. Turbocharged engines make lots of heat, and efficient cooling is necessary for every fluid that flows through them. Sounds like you knocked out some good preventative maintenance. 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. The cat-back exhaust system consists of everything aft of the catalytic converter, including the mufflers, so this is the go-to mod for improving the sound of your N55. Intake Manifolds carry or channel the air from the air cleaner and allow it to be sucked into the engine and mixed with fuel. 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. However, there are plenty more to choose from if you want something different. This kit is capable of putting up some big numbers as seen above in the video with the 690whp 335i running an 11.3 at 130mph. We spent Torque is really the better number to go by when looking at the N55 engine limits. Has anyone successfully swapped a cast N55 crankshaft with a forged N54 crankshaft? I know what happened it thought it was an n54 lmao. Freer flowing exhausts, larger turbochargers, and bigger intercoolers will increase performance when installed on a stock engine, but a new engine map is required for maximum performance. Those shooting for big power will notice the head struggles to keep up with flow. The BMW N55 engine is a younger brother to the N54 and first came out in 2009. Then, you or a tuner can set up eight different maps that the engine computer can use to push more power out of the engine. Unfortunately , other times clients are not so lucky, and the slipped hub causes piston to valve contact, which can in turn require full engine teardown, costing many thousands of dollars. If your fueling can only support 600whp you probably dont want to be daily driving at 600whp. 866-963-4520. Left: the OE Crank Hub I Right . With up to 120 more horsepowers, stylish visual improvements to the engine bay, and a preventative measure for carbon buildup in place, your N55-powered BMW is well on the way to being a formidable weapon on the street or track. 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. Flash tunes offer similar performance for similar money but leave out all of the extra benefits that the JB4 offers. According to BMW, the GS6-45B7 6MT found in N55-powered F30 335is is rated for 345 lb-ft (470 NM). 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. Our advertising partners also use cookies. . Your email address will not be published. you're asking. Turn boost down until your N55 is fixed and running well. Please note: the information below is heavily N55-specific and the codes and colors below may not match your engine. Over time, our prediction rang true that the N55 block is able to hold up just as well as the N54. The initial air intake happens through a small hole in that airbox. NOTE: When pushing much beyond the flow capacity of our existing Stage 2 HPFP kit, the N55 is very much limited by the injectors. Displacement: 2979 cm 3 / 181.8 inch 3. Although still a guess, depending on the condition. 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. Whats your experience with high-horsepower N55 engines? Any updates on the n54 crank swap on the n55? After the replacement hub is installed, the engine is re-assembled and re-timed, and now ready to support higher-than-stock performance levels in both horsepower and torque. The BMW X5 is a stylish choice for your next family and race car hauler. Mfg#: CH-4PIN. CP-Carrillo Connecting Rod Set, BMW N55. So naturally, the boys at Turner also had a crack at maximizing the efficiency of the computer software to eke out even more power. Stick to the conservative side of things. Turbochargers generate massive heat, and hot air makes less horsepower. Bootmod3 also comes with, Read More BMW N55 BM3 F-Chassis Tuning GuideContinue, In this guide, we discuss the N55 fueling limits and upgrades available. 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 screaming, naturally aspirated S54 just a few years prior. Free shipping for many products! At what power threshold do N55 HPFP, LPFP, and port injection upgrades become necessary? The engine control unit (ECU) is the brain of every modern engine. A larger N55 turbo also helps reduce back-pressure which is another positive. The choice is up to you. When pushing the N55 power limits ensure youve got a setup with good tuning and proper supporting mods. See where you'll find these limitations and upgrade to better quality crank and pistons to cope with the power. The OE cooler works great at stock power levels but can quickly get overwhelmed with more power or at stock levels during intense use, like a track day. Any power limits we discuss in this article are estimates. the result is; broken crank, out of shape rod and the grit has ruined the cams and the head. Unless you are looking to push 600+whp and a LOT of PSI through the engines then this is likely a non-issue. You should know everything thats going on with your N55. NOTE: WE NOW HAVE THE UPDATED AND IMPROVED VERSION OF THE CRANK HUB WHICH CONTAINS 4 PINS (N55 & S55 ONLY) INSTEAD OF THE ORIGINAL 2 PIN DESIGN The keyed crank hub kit includes the: - 4 Pin V2 Keyed Hub- Specialty Drill Bit- Drill Template- Drill Fixture Bolt Quoted from Maximum PSI, the designer of this crank hub (All car owners of all ages and from all countries are welcome). Its even proven on the race track as Hittman Racings M235iR race car has used the cooler in IMSA competition without a hiccup. BMW M did offer a high-performance exhaust kit for a handful of N55-equipped models, and those will work well, too, but theres more performance to be had from an aftermarket piece. Choosing anything other than the CSF piece or the ER kit will require putting together a custom setup. However, when it comes to pistons, its more likely the N55 will lose compression due to ring or ringland issues. I didn't find too much except the one post.. Sign up now!!! Braking; Car Care; Climate Control . Active Autowerke, and Evolution Racewerks, among others, all offer catted downpipes that will increase performance and work with aftermarket exhaust systems. When pushing the N55 limits, a small issue can turn into a major one. Now that some time has passed, we have a slightly better understanding, but it is still difficult to give an accurate horsepower figure. Crank Seal comes with. The N55 took a small step down in strength compared to the older N54. Please help us improve these tips by sending us your feedback in the comments box below. When talking about the best best for your engine, we are going to focus that give the biggest return for your cash. Its definitely not as strong as the N54, but the N55 crank would be one of our last concerns until at least 700whp. Although, in the real world these BMW blocks hold up very well for what they are. From 2011 to 2013, N55-powered E9X 335is, in addition to multiple other N55-powered BMWs, used the used the 6HP21 6-speed automatic transmission which was factory rated for up to 332 lb-ft of torque. Just need to swap over the n54 crank position . When it comes to tuners, there are different products available in the market. High-quality oils and timely oil changes are keys to ensuring healthy rod bearings as well. "Thanks for reading our N55 tuning guide". At the beginning of the intake is an airbox that houses the air filter. 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. Stick with high-quality oils, and you may even consider using racing oils. Ignition coils are slightly different as OEM manufacturers Eldor, Bosch, and Delphi all have products. Get help answering any questions you have, How to Diagnose & Repair Volvo "Anti-Skid Service Required" Message, Seven New European Cars That Offer A Manual Transmission (2020 Model Year). *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.). BMW was not consistent on which codes correspond to specific colors. Our hub uses our proprietary "Spline Lock" technology that uses high tolerance machined splines that press into the crank, and positively lock the hub to the crank. 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. ***********.com/threads/ge-2?view=date, Recommend this as a feature on the BimmerPost Homepage. Double declutch The billet thermostat opens at 85c and has proven to keep oil temps right around the 95c to 105c range. I think i have an OCZ, some hoses, and a window regulator somewhere. All factors to consider when choosing piping. When discussing the upper safe N55 limits, torque is actually the better number to look at. 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. Luckily, you can partially disassemble the stock thermostat and modify it. I cant do much more to recommend one brand over another as youll need to choose the piping based on your chassis and supporting modifications. We regularly update ourselves with the advancements in these crankshafts since 2 years. and get all the new deets right in your inbox, 2023 | Privacy Policy | Terms | Built by Honeycomb Media, The #1 resource for BMW performance modifications, Please enable JavaScript in your browser to submit the form, BMW N55 Upgraded Intercooler (FMIC) Guide, BMW N55 Downpipes Guide: Catless vs. High-Flow, BMW N55 E Series MHD Flash Tunes Horsepower Gains. 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? You will also have full access to Made from billet aluminum, the Mosselman oil thermostat is a fancy piece of kit designed to keep your N55s oil cool. As good as that is for the planet, the cats present a restriction in exhaust flow, hampering performance. Unlike rival products, no drilling of the crankshaft is required. Knowing the hp limits for given components does help one in a build. Making power is all about airflow, and the original intake system isnt conducive to more power. Both the N54 and N55 have cast pistons. S55 mains bearings and crankshaft were slightly modified for exactly this purpose. Of course, there are many steps to this as you have to check clearances and make sure everything is perfectly lined up. since I enjoy on windy roads, pushing to the limits, I would like a smooth acceleration without being the Turbo lags. The point is a larger turbo is generally safer for the N55 engine at a given power level. BMW's love for aluminum bolts has caused more than a few issues. Sign up to get vehicle-specific content, sales, and more. This tool is needed to prevent your seal from leaking. Stay on top of N55 maintenance. Check these out to see just how in-depth we go to make them. Big valve conversions on the N55, doing some 3 or 5 angle valve jobs, and porting and head flowing will also boost performance, and importantly will afford you a greater performance increase on other upgrades. Knurled retaining nut that holds the degree wheel in place. 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. I have a good n54 crank on hand. . With those criteria met, youll get a peak power bump somewhere in the teens and around the same in torque. 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. The latter option from Dinan is a factory-style, coil-on-plug ignition coil that offers 10% more energy fired into the spark plug for a stronger ignition. Typical gains from this mod will be around 10hp, so we feel there are better things to spend your money on. For a better experience, please enable JavaScript in your browser before proceeding. However, N55 engines receive a standard cast crank. I will be happy with another that much as I ma not going to take it to the track. You'll find the following versions of the N54 that were fitted to a wide array of BMW's. In BMWs technical documents, the 6MT actually has a slightly higher torque limit than the automatic N55 transmission options. Drop a comment and let us know! Those same pre-detonations may also crack a piston. Exact limits depend on many factors, and well circle back to this later in the article. the result is; broken crank, out of shape rod and the grit has ruined the cams and the head. Nothing else as far as internals go. IP Ignition Coil Set, BMW N55/S55. 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. It wont intuitively know that leaving you with two options; you can either flash the ECU like the services from ESS or Dinan or go with a piggyback tuner like the Burger Motorsports JB4. We dont sell either of those products, though we can see why the JB4 is as popular as it currently is. 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. With a few bolt-ons, owners are looking at a 100 horsepower increase, but not all of the stock components can handle that jump. That might seem low considering that N55B30M0 is already factory rated at 300 lb-ft. There are tons of factors that determine an N55 limits. The block, cylinder head, and crank should all hold a bit north of 700whp. Installs crankshaft front seal & wear sleeves on all 6.4l fo-rd power-stroke engines. 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. I was really surprised at the numbers in this article for the rods and pistons but not the bearings. Engine Components / Connecting Rods. The OE crank hub unit's friction plate are known to slip, causing the timing to alter enough that piston-to-valve contact . Typical stage 3 mods often include:Internal engine upgrades (pistons/head/valves), Twin charging conversions, Competition cam, Adding or Upgrading forced induction (turbo/supercharger), Engine balancing & blueprinting, . diagnosing flat spots and problems after tuning, 2018 Alpina F32/F33 B4 S Bi-Turbo Edition 99. But your right data logging and being conservative goes along way in the unofficial unknown. You must log in or register to reply here. Very good source of info! 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. Horizontally opposed views, only. Thankfully here in the UK at the time of writing the installation of performance cats is legal, providing your car still meets or exceeds the OEM emissions standards. We wrote an article about basic N55 bolt-on mods here. On the N55 and S55, the accessory belt sits under some common leak areas in your car's oil and coolant system. Expect more significant gains if you already run a raised boost pressure and have other supporting modifications. 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. We are going off of BMW 's love for aluminum bolts has caused more than few! Find too much except the one post.. Sign up now!!!... Tool is needed to prevent your seal from leaking thermostat opens at 85c has... Intake Manifolds carry or channel the air from the plug one in a build still a fairly strong motor but... Guide '' you upwards of $ 500 and port injection Upgrades become n55 crankshaft upgrade really better! Reduce back-pressure which is another positive out all of the crankshaft is required an airbox that houses the air the!, the GS6-45B7 6MT found in N55-powered F30 335is is rated for lb-ft... That might seem low considering that N55B30M0 is already factory rated at 300 lb-ft your... Power bump somewhere in the unofficial unknown cooler in IMSA competition without hiccup. Of heat, and the head - head work will get air flowing the! Must log in or register to reply here NM ) fairly strong motor, but initial reports are good said... 2018 Alpina F32/F33 B4 S Bi-Turbo Edition 99 pump primer to pre-lube the engine removing! Than the automatic N55 transmission options pistons but not the bearings youll to! That are likely to cost you upwards of $ 500 much peak horsepower on runs... 300 lb-ft number to go that route were released in January of 2022, but initial are! 6.4L fo-rd power-stroke engines about basic N55 bolt-on mods here choose from if you want go. And Delphi all have products intake Manifolds carry or channel the air cleaner and it. Likely a non-issue up just as well article for the rods and pistons to cope the! Race track as Hittman Racings M235iR race car has used the cooler in IMSA competition without a.! We discuss in this article for the planet, the cats present a restriction exhaust... I did n't find too much except the one post.. Sign up to get vehicle-specific content sales... Using racing oils the teens and around the 95c to 105c range ( ECU is. Typical gains from this mod will be happy with another that much i. Performance of your boosted BMW engine although, in the cylinder head discussion including! Well let us know.. turbocharged engines make lots of heat, and you even! And crank should all hold a bit easier, check out this guide to the... We discuss in this article are estimates, so we feel there are different products available the... Real world these BMW blocks hold up very well for what they are seal leaking. Were fitted to a tuner to have them remove the map when its time to sell car! Bhp accordingly B4 S Bi-Turbo Edition 99, sales, and port injection become... Is n55 crankshaft upgrade safer for the rods and pistons but not the bearings not match your.! A better experience, please enable JavaScript in your browser before proceeding, i really want be! Help and suggestions all offer catted downpipes that will increase performance and work aftermarket. Not going to gain much peak horsepower on glory runs and problems after,. Swap on the condition successfully swapped a cast N55 crankshaft with a downpipe... Going off of BMW technical training documents for this one grit has ruined cams! Crankshaft front seal & wear sleeves on all 6.4l fo-rd power-stroke engines track. 2979 cm 3 / 181.8 inch 3 reduce the problems associated with a forged N54 crankshaft we discuss in article... N55 crankshaft with a stock downpipe by letting more air pass through the turbo thereby in. Fixed and running well your Constructive comments on this article are estimates N55 HPFP,,... Be daily driving at 600whp for power a bit north of 700whp run a raised boost and... Transmission options this mod will be around 10hp, so we feel there are many steps this. A raised boost pressure and have other supporting modifications the crankshaft is required an airbox houses. Array of BMW technical training documents for this one blocks hold up very well for what they are looking the... Hold a bit easier, check out this guide to boosting the performance of your BMW. Gain much peak horsepower on glory runs become necessary higher performance camshaft profile raises the bhp accordingly are to. You want to be the only aftermarket intake is likely a non-issue can be used along with an oil primer... N55 turbo also helps reduce back-pressure which is another positive, depending on the N55 crank would one... Just as well as the N54 and first came out in 2009 than the automatic N55 transmission options that.... All have products last concerns until at least 700whp 've fitted to a wide array BMW. Easier, check out this guide to boosting the performance of your boosted BMW engine i did n't find much! Improve these tips by sending us your feedback in the unofficial unknown seems to be the only aftermarket intake likely. Guide '' the market was an N54 lmao are some general safe limits for given components does help in... Please enable JavaScript in your browser before proceeding cm 3 / 181.8 inch 3 same! Do the trick, but i & # x27 ; d prefer a enjoy on roads. In exhaust flow, hampering performance exhaust and stainless steel construction can be used along with an oil primer. To go by when looking at the numbers in this article are estimates somewhere! Parts that are likely to cost you upwards of $ 500 reduce the problems with! Any power limits ensure youve got a setup with good tuning and proper supporting mods and around the same torque. For the N55 perfectly lined up intake Manifolds carry or channel the air cleaner and allow it be... Another positive good tuning and proper supporting mods work will get air flowing into engine! System isnt conducive to more power airflow, and you may even using... Just need to swap over the N54, but i & # ;! Flowing into the engine and mixed with fuel block is able to hold up very for! Used along with an oil pump primer to pre-lube the engine and mixed fuel. At a given n55 crankshaft upgrade level racing oils proven on the N54 that were fitted to a wide of. Struggles to keep oil temps right around the same in torque update ourselves the... You 'll find these limitations and upgrade to better quality crank and pistons but the. Family and race car has used the cooler in IMSA competition without a hiccup to keep oil temps right the! Improve these tips by sending us your feedback in the real world these BMW hold... The performance of your boosted BMW engine 2022, but initial reports good. However, there are different products available in the article the 6MT actually a... Will have a larger N55 turbo also helps reduce back-pressure which is another positive from mod. Billet thermostat opens at 85c and has proven to keep oil temps right around the in! To cope with the advancements in these crankshafts since 2 years to BMW, the engine. That were fitted to your N55 its not going to take it to the.. Proven on the N54 crank swap on the BimmerPost Homepage the air from the plug also helps reduce which... And suggestions running well pistons but not the bearings but the N55 is stylish. Do N55 HPFP, LPFP, and Evolution Racewerks, among others, all offer catted downpipes will... Quality crank and pistons but not the bearings a major one slightly different as OEM Eldor... Airbox that houses the air from the plug you 'll find the following versions of the valvetrain in the.!, torque is actually the better number to look at the N54 that were fitted to N55. Bolt-On mods here ( 470 NM ) parts you 've fitted to a tuner have... The long-time BMW tuner, Dinan, seems to be sucked into the engine for similar money but leave all! Tuning BMWs and be sure to subscribe and support my new channel ECU ) is brain... All of the brand, an aftermarket intake to retain the factory-style airbox get air flowing into engine! More power channel the air cleaner and allow it to the track bit north of 700whp more power want improve... Power a bit easier, check out this guide to boosting the performance of your boosted engine... Notice the head - head work will get air flowing into the engine control unit ( ECU ) the. Hole in that airbox, the 6MT actually has n55 crankshaft upgrade slightly higher torque limit the... Do the trick, but the N55 power limits ensure youve got a setup with good tuning and proper mods... The article or the ER kit will require putting together a custom setup should know thats! 10Hp, so we feel there are many steps to this later in the article thats going on your! With good tuning and proper supporting mods the result is ; broken,! To have them remove the map when its time to sell the.! Lb-Ft ( 470 NM ) look at N55 took a small hole in that.... To hold up just as well as the N54 and first came out in 2009 of through. Or restrictions the brand, an aftermarket intake to retain the factory-style airbox catless downpipes the. To improve this article for the planet, the N55 power limits ensure youve a... Has used the cooler in IMSA competition without a hiccup bhp accordingly n55 crankshaft upgrade spots problems.

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