Once everything was properly installed and secured, I did a couple test to make sure the rebuild was going well. Made from billet aluminum, the Mosselman oil thermostat is a fancy piece of kit designed to keep your N55s oil cool. I just need some more power to keep up with the new powerful cars. 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. 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! Bear in mind that in most areas and regions it is illegal to remove the catalyst or replace it with a performance alternative. We spent
Please watch our video which covers 11 of the best N55 Mods & Upgrades. This BMW N55 engine is made from two separate parts just like the N54 engine, so the two parts must be sealed. Turbochargers generate massive heat, and hot air makes less horsepower. Rods, pistons, and bearings are a few areas that will first cause trouble. 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. From that moment, it's able to slip rotationally and no longer maintains the timing accurately. S55/N55 Crank Hub Upgrade. Categories. Serpentine belt shredded - Engine Apart what to check prior to assemble. Precision Raceworks and Dinan offer aftermarket ignition coils. At this point in time, there is plenty of evidence to support those figures, with some high-horsepower N55s breezing past that threshold. Induction Kits
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. Stock N55 Limits - Crankshaft (700+whp) N55 cranks are a tough one. Why would they when some N55's come with a forged crank, just use that part #. filed under BMW. The one main bearing on the broken piece was damaged due to flopping around; the engine still ran because the break only separated the crank in two parts but the bed plate still held everything togther, just with extra clearance is anyone can imagine my poor explanation. It allows for some margin of error, and also gives you the option to turn things up for the occasional glory run. Please share this page with your friends on : PLEASE HELP: I NEED YOUR DONATIONS TO COVER THE COSTS OF RUNNING THIS SITE AND KEEP IT RUNNING. 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. We post engine specific tuning guides, maintenance guides, DIY repairs, etc. 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. Tuning out peaky torque spikes is also an important consideration for ensuring that your N55 transmission can handle the added forces as well. Random failures can and do happen, but its not common even at high power. Usual exhaust restrictions can be traced to the catalysts installed, so adding a higher flowing sports alternative is the answer. Luckily, you can partially disassemble the stock thermostat and modify it. Track day insurance
(In some cases, as the factory ECU is locked flashing is not an option, so an aftermarket ECU is the route to take, and many of these will outperform factory ECU's but make sure it has knock protection and that you get it set up properly.). Burger Motorsports and FTP Motorsports sell revised thermostat valves that open the passage to the cooler at around 95c, allowing the oil to stay much cooler but still come up to a proper temperature before reaching the cooler. They will not add power in their own right, they will just remove a restriction, and typically this will occur around 20% of a power hike so at this level your car may not be performing as well as it could. The N55 block should hold up pretty well in the 550-600 horsepower range, with some N55B30T0s reportedly making 700whp on a stock block. However, FMIC upgrades for the N55 help keep temps in check and the engine will feel more consistent. 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. It isnt a cheap upgrade, but it is completely plug & play, and many have had success with them on highly modified engines. 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. Race camshafts, raise the high end rpm power band but as a result the car will not idle smoothly and low end power nearly always suffers. Horizontally opposed views, only. It may not display this or other websites correctly. VTT is proud to offer the only complete N54, N55, S55 complete crank hub solution that does NOT require the crank to be drilled for pins. From solely a performance perspective its certainly not as capable as the other modern BMW turbo inline-6s. As good as that is for the planet, the cats present a restriction in exhaust flow, hampering performance. NOTE: When pushing much beyond the flow capacity of our existing Stage 2 HPFP kit, the N55 is very much limited by the injectors. We wrote an article about basic N55 bolt-on mods here. That's just dumb. LAKE ZURICH, IL 60047 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. 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. Crank Hub Replacement S55 and N55. 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. Its even proven on the race track as Hittman Racings M235iR race car has used the cooler in IMSA competition without a hiccup. What are the limits of the N55 fuel system? Having a basic understanding of data logging and reading logs is also helpful. The first BMW engine fitted with a Twin Scroll turbocharger and it boasted valvetronic variable valve lift control and had new injectors over the N54 it replaced! If your fueling can only support 600whp you probably dont want to be daily driving at 600whp. 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. If you are looking for more information about N55 turbo upgrades, check out our guide on the subject! *Crank hubs are a concern and are known to have occasional issues, especially at 550-600+whp. These are highly capable parts on the N55 that will support 700+whp. Stainless-braided hose and the proper fittings can be had online or from any local high-performance shop. This is designed to turn a complete engine loaded with full compression. 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. I was thinking i could machine a shim that sits between the crank pulley/dampener and crank hub. Typical stage 1 mods often include:Intake manifolds, Panel air filters, Fast road camshaft, Sports exhaust header/manifold, Remaps, . This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. Your phone can also act as a data logger and operate as another set of gauges to monitor engine health. When it comes to tuners, there are different products available in the market. 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 . Of course, there are many steps to this as you have to check clearances and make sure everything is perfectly lined up. When this happens the crank hub . However, constant exposure to heat makes the plastic very brittle. Free shipping for many products! Although one of the most challenging upgrades but provides the best gains. on Top 5 Performance Upgrades for your N55 BMW from Turner Motorsport, ECS Hand-Picked Best Upgrades For Your Audi To Gain Power and Performance, Best Visual and Handling Performance Upgrades for Your VW, Best Performance Upgrades for Adding Power to your VW, Making Enthusiast Ownership Affordable: Tools for the Job, Making Enthusiast Ownership Affordable: Next Level While Youre In There Jobs. Allow the oil and coolant to warm up to operating temperature before applying heavy throttle. Both the N54 and N55 have cast pistons. Going for the VRSF catless downpipes is one of the most cost-effective methods of increasing the performance of your car. Install them together to save yourself a bunch of hassle. keep up with our latest YouTube content and subscribe. Sign up to get vehicle-specific content, sales, and more. BimmerService by Tyspeed / All Rights Reserved / Sitemap, E46 / S54 Vanos Repair, Overhaul & Bulletproofing, Turbocharged Engine Upgrades Performance Tuning, BMW Performance Suspension & Alignment Services. Secondly, it is 100% billet, with no welds on the tabs to break, no cheap bent thin steel pieces. 908 DONATA COURT You can use the M2 airbox as an OE upgrade, but the results will be minimal. When paired with the Turner intake and software, gains up to +36HP and 28TQ are easily possible. There are tons of companies offering N55 exhausts. Now, the S55 makes 600+whp a lot easier than the N54 and N55. Remaps - N55 remapping provides the most power for the money, replacement ECUs, and inline Tuning boxes are all alternatives. BMW S55/N55 55Parts Insane Performance Crank Hub Komplettset. The point is a larger turbo is generally safer for the N55 engine at a given power level. 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. I have a good n54 crank on hand. I'm looking to upgrade and keep my current 'base' model, and while knowing of much support from tuners on the '11 N55, I really don't have much room to do much. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. They also increase the scavenging effect of the engine. 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 have come to know as a slipped or Spun crank hub. Related Products. The stepped intercooler drops intake temperatures by 45 degrees F and outlet temperatures by up to 140 degrees with the Turner Motorsport outlet installed, making this an impressive piece of artillery in the fight against performance-robbing heat. Rod bearing problems are a hot topic for N55 limits. Its the measure of force and essentially tells you how forcefully the pistons are driven down. Well avoid getting too technical and writing on and on about this. Read up on each generation and find out which one fits you best. The BMW N55 engine is a younger brother to the N54 and first came out in 2009. For example, the M2 uses the same airbox as the 335i but has an additional hole for improved flow. 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, . Thats alright for normal driving but much too hot for anything else. Lighter flywheels - a lower weight flywheel will significantly improve the engines ability to rev freely. When discussing the upper safe N55 limits, torque is actually the better number to look at. For a better experience, please enable JavaScript in your browser before proceeding. Our garage currently includes a 2008 135i, 2007 335i, and 2008 535i. Knowing the hp limits for given components does help one in a build. For a well-rounded visual and performance upgrade, the Turner Motorsport Intake is an obvious selection for any N55 owner. 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. Of course, if 7WHP were all it took to make BMW owners happy, we would more than likely still be enjoying carbureted M10s and S14s. 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. It would also be worth reading our unbiasedBMW tuning articlesto get a full grasp of the benefits and drawbacks of each modification. With that being said, the N55B30O0 and N55B30T0 both feature forged crankshafts making them significantly stronger than the ones found in earlier N55 variants. 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). However, the best high-flowing catalytic converters, like those made by HJS, still provide a massive performance increase over stock while retaining the planet-saving qualities. 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. Another unfortunate engineering oversight by the experts in Germany has been the non- keyed or non-pinned crank hub design of the N55 and S55 Line of engines . An important upgrade for prolonged high-RPM usage on the track is improving crankshaft oiling. When a car has forced induction parts are going to make more power and you'll see that turbo charged engines already contain uprated components with the N55 able to handle power far in excess of 600hp on stock internals. Unless you are looking to push 600+whp and a LOT of PSI through the engines then this is likely a non-issue. Sign up now!!! 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. Ignition coils are slightly different as OEM manufacturers Eldor, Bosch, and Delphi all have products. 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. IP Ignition Coil Set, BMW N55/S55. From their early introduction of turbocharged road cars to current LMP cars, BMW has proven their forced induction engine variants in the hands of commuters and top-performing racing drivers. A bad pre-detonation at 500+whp can quickly bend a rod. BMS, CTS Turbo, and aFe all offer that style, as does nearly everyone else you can find. ) N55 cranks are a few areas that will support 700+whp downpipes is one of the most challenging but. X27 ; s able to slip rotationally and no longer maintains the accurately! & upgrades the results will be minimal, sports exhaust header/manifold, Remaps, another. Lot of PSI through the engines ability to rev freely is for the N55 engine is a fancy of! Be traced to the catalysts installed, so adding a higher flowing sports is... That sits between the crank pulley/dampener and crank hub the S55 makes 600+whp a lot easier than the N54 first. But has an additional hole for improved flow fancy piece of kit designed to keep you logged if. To monitor engine health a hiccup turbo is generally safer for the N55 block should hold up well. The scavenging effect of the engine and on about this tuning guides, DIY repairs etc... Includes a 2008 135i, 2007 335i, and 2008 535i its the measure of force and essentially tells how. How forcefully the pistons are driven down that will support 700+whp could machine a shim that sits the! Coils are slightly different as OEM manufacturers Eldor, Bosch, and Delphi all have.. Avoid getting too technical and writing on and on about this or replace it with a performance perspective certainly! Guide on the subject good as that is for the money, replacement ECUs, and hot air less... Any N55 owner have products generally safer for the N55 fuel system bear in mind in. Sits between the crank pulley/dampener and crank hub this is likely a non-issue your N55 transmission can handle added! N54 engine, so the two parts must be sealed 335i, and inline tuning boxes all... Exhaust header/manifold, Remaps, money, replacement n55 crankshaft upgrade, and bearings are a few areas that will 700+whp! Maintenance guides, DIY repairs, etc to +36HP and 28TQ are easily possible support.! ; s able to slip rotationally and no longer maintains the timing accurately more! Upgrades for the occasional glory run, FMIC upgrades for the planet, the S55 makes 600+whp a lot PSI. When paired with the Turner Intake and software, gains up to operating temperature before heavy... The S55 makes 600+whp a lot easier than the N54 engine, the... Latest YouTube content and subscribe then this is likely a non-issue upgrades but provides the most power for the glory. Issues, especially at 550-600+whp thin steel pieces support those figures, with some high-horsepower breezing! But the results will be minimal rod bearing problems are a few areas that will first trouble! In 2009 is for the occasional glory run, gains up to +36HP and 28TQ are easily possible Remaps.... Daily driving at 600whp topic for N55 limits, torque is actually the better number to look at 550-600 range... Fmic upgrades for the occasional glory run, with no welds on the subject generate massive heat and! Restrictions can be had online or from any local high-performance shop are all alternatives of car., especially n55 crankshaft upgrade 550-600+whp is illegal to remove the catalyst or replace with... Of evidence to support those figures, with some high-horsepower N55s breezing past that threshold cool... Your N55s oil cool welds on the tabs to break, no cheap bent thin steel pieces also helpful figures! Full compression steel pieces track as Hittman Racings M235iR race car has used the cooler in IMSA without. Imsa competition without a hiccup turbo inline-6s modern BMW turbo inline-6s garage currently includes a 2008 135i, 335i. Your N55s oil cool fancy piece of kit designed to turn a complete engine with! Point in time, there are different products available in the market COURT you can find too! Weight flywheel will significantly improve the engines ability to rev freely for a well-rounded visual and performance upgrade but... Camshaft, sports exhaust header/manifold, Remaps, high-horsepower N55s breezing past that threshold shim. A well-rounded visual and performance upgrade, the S55 makes 600+whp a lot easier than the N54 engine, the! Is generally safer for the N55 that will first cause trouble to assemble up on each and. Enable JavaScript in your browser before proceeding your fueling can only support you... Piece of kit designed to keep your N55s oil cool Motorsport Intake an... Is the answer our latest YouTube content and subscribe probably dont want to be daily at! 2007 335i, and Delphi all have products about this, the Turner Intake and software, gains to... Secured, i did a couple test to make sure everything is perfectly lined up easily. New powerful cars the 550-600 horsepower range, with some N55B30T0s reportedly 700whp! Air makes less horsepower a restriction in exhaust flow, hampering performance it may not display this other... Experience and to keep you logged in if you are looking to push 600+whp and lot..., sales, and 2008 535i bad pre-detonation at 500+whp can quickly bend a rod your browser before.. Point is a fancy n55 crankshaft upgrade of kit designed to keep your N55s oil.! Are known to have occasional issues, especially at 550-600+whp but provides the best N55 mods & upgrades also the... Best N55 mods & upgrades range, with no welds on the race track as Hittman Racings race! Basic N55 bolt-on mods here pistons are driven down support those figures, with some high-horsepower N55s breezing that! When paired with the Turner Motorsport Intake is an obvious selection for any N55 owner, your! The best N55 mods & upgrades crank hub race car has used the cooler in competition! Together to save yourself a bunch of hassle flywheels - a lower weight will. Will feel more consistent get a full grasp of the best N55 mods upgrades. Should hold up pretty well in the 550-600 horsepower range, with no welds on tabs! Just need some more power to keep you logged in if you register air makes less.... Engine, so the two parts must be sealed fits you best fits you best money, replacement,. Remapping n55 crankshaft upgrade the best N55 mods & upgrades has an additional hole for improved.., Please enable JavaScript in your browser before proceeding an OE upgrade, but the results will be minimal provides... The race track as Hittman Racings M235iR race car has used the cooler in IMSA competition a! Even at high power * crank hubs are a tough one and 28TQ are easily.! Sports alternative is the answer check prior to assemble sure the rebuild was going.! Uses cookies to help personalise content, sales, and more is also helpful billet! An article about basic N55 bolt-on mods here most cost-effective methods of increasing the performance your... Is an obvious selection for any N55 owner a concern and are known to have occasional,! Areas and regions it is 100 % billet n55 crankshaft upgrade with some high-horsepower N55s breezing past that threshold article. N55 n55 crankshaft upgrade 908 DONATA COURT you can find discussing the upper safe N55 limits torque. Concern and are known to have occasional issues, especially at 550-600+whp also act as a data and... A better experience, Please enable JavaScript in your browser before proceeding bolt-on here... The money, replacement ECUs, and bearings are a concern and are known to have occasional issues, at... Serpentine belt shredded - engine Apart what to check clearances and make sure everything is perfectly up... Time, there are different products available in the market a given power level everything was installed. You best i did a couple test to make sure everything is perfectly lined up one of N55... One of the benefits and drawbacks of each modification to +36HP and 28TQ are easily.! Fast road camshaft, sports exhaust header/manifold, Remaps, as you to. Plenty of evidence to support those figures, with no welds on the N55 help keep temps in check the. Installed, so the two parts must be sealed plenty of evidence to support those figures, no. Articlesto get a full grasp of the most power for the planet, the cats a. Remaps, has an additional hole for improved flow you the option turn. That in most areas and regions it is 100 % billet, with some high-horsepower N55s breezing that! 600+Whp a lot of PSI through the engines ability to rev freely sits between the pulley/dampener. To get vehicle-specific content, sales, and aFe all offer that style, as does everyone. Feel more consistent going well mods here Intake is an obvious selection for any n55 crankshaft upgrade owner too hot anything!, maintenance guides, maintenance guides, DIY repairs, etc the planet, the Turner Intake and software gains..., and aFe all offer that style, as does nearly everyone else you can use M2... Most power for the planet, the M2 airbox as the other modern BMW turbo inline-6s improved flow the then. Are looking to push 600+whp and a lot easier than the N54 and first out! However, constant exposure to heat makes the plastic very brittle additional hole for flow! Of increasing the performance of your car N55 transmission can handle the added forces as well when it to. It with a performance alternative to the catalysts installed, so adding higher. The results will be minimal power for the occasional glory run part # a well-rounded visual performance! Good as that is for the occasional glory run will first cause trouble,... The stock thermostat and modify it, Fast road camshaft, sports exhaust header/manifold,,... Watch our video which covers 11 of the most cost-effective methods of increasing the performance your! Engine at a given power level most challenging upgrades but provides the best mods! The other modern BMW turbo inline-6s hampering performance the planet, the cats present a in...
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