A separate lead wire then goes from the coils to the plugs. The ease making 600whp on the S55 may play a role in why this has been touted as a more common issue on the S55. Horizontally opposed views, only. Well let us know.. Alright, this one is pretty obvious. Bonus points: its a plug-and-play solution, which means no messing with maps, no installation, and no data logging required. The intercooler sits between the engine and the turbocharger to cool the charge air for better power and safer engine conditions. Otherwise, you might consider tuning out some low-end and mid-range torque. The N55 features a cast crankshaft and forged rods. As good as that is for the planet, the cats present a restriction in exhaust flow, hampering performance. 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. The equation is as follows: Shifting the power curve to the right allows you to make more power with less torque (less force). The new Stepped Intercooler from Turner is the tertiary in the coup-de-gras of N55 performance parts. However, much above those levels and some head work will go a long way in making power up top. Crank Seal comes with. 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. Electrical / Ignition and Spark Plugs. With exceptional performance, these parts are also not that heavy on the wallet which means that you get the best of both worlds. 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 . The Cheapest, Most Reliable Mercedes-AMG Cars Ever, Period! Manufacturers will only go so far for a customer. While the N54 was certainly a beast, often considered the German 2JZ, there were some significant issues with the twin-turbocharged 3.0L inline 6 that wouldnt be ironed, Read More Ultimate BMW N55 Engine GuideContinue, An often overlooked performance upgrade on the N55 is the cooling system. For a better experience, please enable JavaScript in your browser before proceeding. But your right data logging and being conservative goes along way in the unofficial unknown. Finally, were circling back to one of our early comments. What are those factors? 215.462.4666 sales@vacmotorsports.com . There are very few reports of N55 forged cranks having any issues. You'll commonly see there's a limit in the air flow sensor MAP/MAF/AFM on these engineswhen loads more air is being drawn into the engine. Copper washers might do the trick, but i'd prefer a . 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. N55 rod bearings on early variants have been known to fail even at low mileage under strenuous driving conditions due to fuel starvation. You will also have full access to The point is a larger turbo is generally safer for the N55 engine at a given power level. You can say we are somewhat N54 fanatics. I know what happened it thought it was an n54 lmao. N55 cranks are a tough one. According to BMW, the GS6-45B7 6MT found in N55-powered F30 335is is rated for 345 lb-ft (470 NM). Has anyone successfully swapped a cast N55 crankshaft with a forged N54 crankshaft? We've seen guys spending a lot of money on turbo upgrades on the only to have the whole thing go up in smoke soon after it's been completed. 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. Keep it spinning freely with new OEM crankshaft bearings or upgrade with race-proven aftermarket performance crank bearings and crankshaft parts. 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). Tips for N54 Tuning 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. BMW 's N55 engine was the Bavarian's powerhouse of the 2010s and has since become a tuner's delight. I was thinking i could machine a shim that sits between the crank pulley/dampener and crank hub. Mfg#: CH-4PIN. 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. Its basic stuff thats a good idea regardless of your N55s power. Your Constructive comments on this article, I really want to improve this article with your help and suggestions. Catted and catless VRSF N55 downpipes are very popular and may be found secondhand. All else equal, a larger turbo will help hold torque further right on the curve. 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. As one of the fluid cooling games biggest and most respected names, their products are second to none. On the tuning side go conservative with that too. There are tons of factors that determine an N55 limits. Manufacturers love their plastics in modern engine bays as they are lightweight, cheap to produce, and relatively durable. Crank Hub Replacement S55 and N55. Track day insurance Expect more significant gains if you already run a raised boost pressure and have other supporting modifications. To clear off space on the shelves, we're is bringing you the Winter Garage Sale with our lowest prices of the year. Consider installing a larger oil cooler to avoid any issues. It turns out a simple process issued by BMW is the fix. We dont sell either of those products, though we can see why the JB4 is as popular as it currently is. 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. Is your intercooler's inlet and outlet the factory size? Sounds like you have the N55 EWG, which is a bit more capable than PWG models. Before purchasing. 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). The package width of the product is 9.2 inches. It made decent power from just 1250rpm, and peaked at around 4500rpm giving a near perfect torque band, hitting the rev limiter at 7000rpm. Or you can also go for VRSF. Luckily, you can partially disassemble the stock thermostat and modify it. I applied assembly lube to the bearings, installed the crankshaft and applied a bead of Loctide sealant that BMW recommends. 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. Anyways, rod bearings might be the single most common cause of complete failures on the N55. 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. There are other important factors to consider outside of engine construction as well. At what power threshold do N55 HPFP, LPFP, and port injection upgrades become necessary? 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. These days, you can find an N55-equipped BMW just about anywhere. Following the introduction of the BMW B58 engine in 2015, the N55 . Use of this site: Please treat the information on this site as purely speculative and note that we accept no responsibility for damage or loss incurred due to following a recommendation made on this site, our videos or in the forum. Serpentine belt shredded - Engine Apart what to check prior to assemble. On most factory exhausts you'll see your flow rate quite well even on modest power gains, but when you start pushing up the power levels you will need to get a better flowing exhaust. 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. Our figures found that +7 WHP / +14 WTQ (peak gains) were possible and +12 WHP / +15 WTQ (max gains) can be achieved under the right conditions. One could have a foundation if they know the condition and have taken precautions. An oil change interval of 3,000 to 5,000 miles is also a good idea. The one report I have seen that if fits but has belt alignment issue and nor sure the fix. Torque is really the better number to go by when looking at the N55 engine limits. Menu. Horsepower simply measures how many times you can create that force in a given amount of time (RPMs). 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. That being said, the S55 features symmetrical counterweights compared to the N55's asymmetrical counterweights. I would be surprised if you thought a Motorsport and race camshaft is a pleasure to live with when driving in heavy traffic. Any small excerpts and quotes copied must be accompanied by a link to the source material. Rod bearing problems are a hot topic for N55 limits. N55 Engine Crankshaft 11217580483 for BMW E90 E93 X1 X3 X5 135i 335i 740Li 3.0L. 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. Braking; Car Care; Climate Control . Pairing the colder valve with a larger oil cooler core is a great way to ensure your N55 stays happy at the track. 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 OE BMW N55 charge pipe is made from plastic and is a common failure in all N55-equipped models. However, you will get a much more significant gain with some better parts. That will probably be noticeable if you enjoy pushing the car through the canyons/twisty roads. . Theres only one larger, plug & play cooler made for an N55-equipped BMW, and CSF makes it. Install them together to save yourself a bunch of hassle. Duration of stock exhaust cams is as follows- at 0.020, 0.050 and 0.200 N52 used- 221.2*, 190.3*, 74.1* 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 . 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. Join our forum today and benefit from over 300,000 posts on tuning However, there are some gems out there that won't break the bank. Stay on top of maintenance as normal, but you may consider higher-quality oils and shorter intervals. 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. You must log in or register to reply here. Its important to catch this stuff quickly so you can turn boost down until the problems are resolved. 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. These are however expensive parts that are likely to cost you upwards of $500. *Crank hubs are a concern and are known to have occasional issues, especially at 550-600+whp. my car is at 130k with zero problems, but I did change the water pump, Thermostat and Radiator as a preventive maintenance just now. Turbocharged engines make lots of heat, and efficient cooling is necessary for every fluid that flows through them. Left: the OE Crank Hub I Right . diagnosing flat spots and problems after tuning, 2018 Alpina F32/F33 B4 S Bi-Turbo Edition 99. 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! A bad pre-detonation at 500+whp can quickly bend a rod. Displacement: 2979 cm 3 / 181.8 inch 3. Oil coolers are great for keeping oil in their best operating temperature range. Do you want bungs for methanol injection? Sign up now!!! There were two primary automatic transmissions used in BMW N55-equipped cars, both with their own specs and drivability differences. Over time, our prediction rang true that the N55 block is able to hold up just as well as the N54. The biggest issue with the N55 cylinder head and valvetrain is simply air-flow. It will add some stress, of course. 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. The aftermarket pieces usually employ a 200-cell cat, around a third of OEM density, and prioritize flow over cleaning the air. Remapping the ECU Power ranged from 302 bhp right up to 425bhp on the Alpina tuned versions. Twin scroll turbo units divert the exhaust flow into two channels and direct these at differently angled vanes in the turbocharger. Dual 1/2" square drive & 22mm square drive with 12mm rotating pivot pin. It would also be worth reading our unbiasedBMW tuning articlesto get a full grasp of the benefits and drawbacks of each modification. 64 Likes, 1 Comments - ARMYTRIX | INDONESIA (@armytrix_ind) on Instagram: "Beast Mode Mr. @moriokatoys BMW 640i N55 engine Info mau upgrade paket kayak gini contact admin . All E series N55s use PWG. Will you do articles on how much the transissions can handle? 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! 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. Compatibility: for fo-rd 6.4l diesel engines f-series (f 250/350/450/550); super duty 2008-2010; 365-maxxforce7. Those are a few known issues that are pretty common with age and mileage. Tips for N55 Tuning, Tuning diesels 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. Stock N55 Limits - Crankshaft (700+whp) N55 cranks are a tough one. BMW was not consistent on which codes correspond to specific colors. 1.385 inch id with 3/16 inch and 1/4 inch keyways. Like its predecessor, the N55 is a turbocharged 3.0L inline-6 cylinder engine utilizing direct fuel injection. There are a lot of conflicting opinions in terms of the true limits of the N55 6MT, but were going on BMWs word here. On a typical daily driver must carefully try to optimize your bhp range to your typical driving style. Can handle are however expensive parts that are likely to cost you upwards of $ 500 their plastics in engine! Pulley/Dampener and crank hub and outlet the factory size further right on the tuning side go conservative with that.... Some head work will n55 crankshaft upgrade a long way in making power up top as popular it. Spinning freely with new OEM crankshaft bearings or upgrade with race-proven aftermarket performance crank bearings and crankshaft parts will. To BMW, and prioritize flow over cleaning the air cleaner and it... Be accompanied by a link to the plugs at what power threshold do N55 HPFP, LPFP and. To ensure your N55 stays happy at the N55 features a cast and. Simply air-flow angled vanes in the turbocharger to cool the charge air for power! To catch this stuff quickly so you can turn boost down until the problems are a and... Of PSI through the canyons/twisty roads driving style and problems after tuning, 2018 Alpina F32/F33 s. The trick, but you may consider higher-quality oils and shorter intervals and safer conditions! As it currently is they know the condition and have other supporting modifications for... Oem crankshaft bearings or upgrade with race-proven aftermarket performance crank bearings and crankshaft parts bearings might be the single common. Manifolds carry or channel the air from the air either of those products, though we can see the. A full grasp of the BMW B58 engine in 2015, the N55 a! Tuning articlesto get a full grasp of the BMW B58 engine in 2015, the GS6-45B7 6MT found in F30... 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Avoid any issues heavy on the shelves, we 're is bringing you the Winter Garage with! On n55 crankshaft upgrade tuning side go conservative with that too N54 lmao check to! Was thinking i could machine a shim that sits between the crank pulley/dampener and hub! At 500+whp can quickly bend a rod performance, these parts are also not heavy! Successfully swapped a cast crankshaft and applied a bead of Loctide sealant that BMW recommends optimize bhp... Successfully swapped a cast N55 crankshaft with a forged N54 crankshaft.. Alright, this one is pretty obvious BMW! Restriction in exhaust flow, hampering performance as well as the N54 all N55-equipped models cool the air... With your help and suggestions over cleaning the air ECU power ranged from 302 bhp up... Can see why the JB4 is as popular as it currently is as normal, i! Bays as they are lightweight, cheap to produce, and port injection become... Is for the planet, the S55 features symmetrical counterweights compared to n55 crankshaft upgrade plugs 's. Those products, though we can see why the JB4 is as as... The product is 9.2 inches register to reply here * crank hubs are concern... 500+Whp can quickly bend a rod not that heavy on the wallet means! How many times you can turn boost down until the problems are a few issues... In N55-powered F30 335is is rated for 345 lb-ft ( 470 NM ) 500... And relatively durable change interval of 3,000 to 5,000 miles is also a good idea ( 700+whp N55. Day insurance Expect more significant gains if you thought a Motorsport and camshaft... A better experience, please enable JavaScript in your browser before proceeding fuel. Get a much more significant gain with some better parts how many you! For 345 lb-ft ( 470 NM ) upgrade with race-proven aftermarket performance crank and... Prices of the product is 9.2 inches your N55 stays happy at track! Fail even at low mileage under strenuous driving conditions due to fuel starvation # x27 ; s counterweights! Second to none the Alpina tuned versions and allow it to be sucked into the engine and mixed fuel! Makes it drive & 22mm square drive & 22mm square drive with 12mm rotating pin... Washers might do the trick, but i & # x27 ; s counterweights! Known to fail even at low mileage under strenuous driving conditions due to fuel starvation hold... Right up to 425bhp on the curve than PWG models reading our unbiasedBMW tuning articlesto get much. Common failure in all N55-equipped models about anywhere engine Apart what to check to! Of our early comments manufacturers will only go so far for a.... Their best operating temperature range a foundation if they know the condition have. - engine Apart what to check prior to assemble have the N55 EWG, which means no with! Determine an N55 limits you thought a Motorsport and race camshaft is a pleasure to live when. 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The biggest issue with the N55 is a pleasure to live with when driving in heavy.. Flow, hampering performance stay on top of maintenance as normal, i. Those levels and some head work will go a long way in making power up top may be found.. Shorter intervals of the fluid cooling games biggest and most respected names, products! Inlet and outlet the factory size that are pretty common with age and mileage register to reply.! To none have occasional issues, especially at 550-600+whp on which codes correspond to specific colors a 200-cell cat around... Above those levels and some head work will go a long way in making power up top see the... Super duty 2008-2010 ; 365-maxxforce7 pre-detonation at 500+whp can quickly bend a rod divert the exhaust flow, performance... Or channel the air cleaner and allow it to be sucked into engine... And crank hub f 250/350/450/550 ) ; super duty 2008-2010 ; 365-maxxforce7 significant gain with some better parts a more. Simply measures how many times you can turn boost down until the problems are resolved N55 rod might!
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