We spent JavaScript is disabled. However, the above are a few of the factors we can control. However, when it comes to pistons, its more likely the N55 will lose compression due to ring or ringland issues. We post engine specific tuning guides, maintenance guides, DIY repairs, etc. You will need to ensure that the engine is not starved of fuel so should look at the fuelling when you start extending past 20% of a bhp and torque increase. Pairing the colder valve with a larger oil cooler core is a great way to ensure your N55 stays happy at the track. The turbo setup ties into the above discussion by shifting the power curve right. the result is a big crack across the number six big end journal (on the crankshaft), it caught the bearing and spun it. N55 Tuning Stages. 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. Perhaps more importantly, however, it has given companies like Turner Motorsport opportunities to improve slightly upon that base engine to both quickly and easily give enthusiasts an achievable performance goal. Beyond the exhaust construction, the brand isnt too important. 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. 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. Cookies are used to track visitor behaviour enabling us to monitor and optimise the effectiveness of our content via Google Analytics, and to remember your preferences and settings on this site. If your N55 BMW happens to be an F30, then you can benefit from some additional underhood visual improvements. Hope luck is on your side, but know things can still go wrong even if you do everything right. 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.. Most of the cases of cracked crankshafts in the N55 have resulted from spun rod bearings which have damaged the N55 crankshaft in the process. Induction Kits However, much above those levels and some head work will go a long way in making power up top. you're asking. IP Ignition Coil Set, BMW N55/S55. The Carbon Fiber Engine Cover, either in Gloss or Matte finish, is tailored to fit your engine perfectly and match your Turner Motorsport Carbon Intake for a spectacular theme of race-inspired carbon accessories. Build in some headroom. You are using an out of date browser. 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. Find a few local cars with modified exhausts, or ask around the online BMW community to find one you might like. I will be happy with another that much as I ma not going to take it to the track. 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). Will you do articles on how much the transissions can handle? There are tons of factors that determine an N55 limits. S55 mains bearings and crankshaft were slightly modified for exactly this purpose. Brand: ES#: 4423399. The point is a larger turbo is generally safer for the N55 engine at a given power level. Please see my video on Tuning BMWs and be sure to subscribe and support my new channel. All else equal, a larger turbo will help hold torque further right on the curve. Its not nearly as simple as stating, Yeah, the N55 will hold up for 200k miles at 550whp, but its going to blow up instantly at 575whp. Theres still considerable risk in increasing power, and nothing is a guarantee. It may not display this or other websites correctly. Check these out to see just how in-depth we go to make them. Offset for precontrol at Targetboostdynamic (or so), To become a vendor visit: https://bit.ly/ss-vendor-apply. Otherwise, adding 75whp shouldnt have any major impacts on reliability. This issue was solved on the N55B30T0, as it uses the S55 oil pan which is designed to sustain high-G turns. Flowing and porting the Head - Head work will get air flowing into the engine while removing turbulence or restrictions. It also has a higher nickel content helping the steel resist rust and corrosion. The spark plugs and ignition coils are already a finicky pair on stock N55s, so increasing the performance reduces their effectiveness. Upgrade the N55 turbo (along with other supporting mods) and the engine can make 500-600whp fairly easily. Just had a knocking noise diagnosed on my 2014 M135i, many dollars later, it got pulled apart at the engine shop. 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. 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. Find many great new & used options and get the best deals for 11-16 BMW F06 F07 F10 F13 F30 335I 535I 640I 740I N55 CRANKSHAFT PULLEY BALANCER at the best online prices at eBay! Just had a knocking noise diagnosed on my 2014 M135i, many dollars later, it got pulled apart at the engine shop. It will usually give you around 30% more power on turbocharged vehicles and 15% on NA (naturally aspirated) engines, but you mileage will vary depending on the parts you've done and the condition of your engine. Regardless of the brand, an aftermarket intake is likely good for around ten horsepower. For a better experience, please enable JavaScript in your browser before proceeding. Adding downpipes is one of the best performance modifications that can go on a car before putting a tuner in it. the result is; broken crank, out of shape rod and the grit has ruined the cams and the head. Active Autowerke, and Evolution Racewerks, among others, all offer catted downpipes that will increase performance and work with aftermarket exhaust systems. You are using an out of date browser. 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. However, N55 engines receive a standard cast crank. As a piggyback system, the JB4 tuner plugs into your BMW through the OBD-2 port and integrates itself into the cars electronics. 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 N55 really loves higher octane fuel and gives more power and better economy with most drivers claiming costs per mile work out the same as using the low octane fuel. So naturally, the boys at Turner also had a crack at maximizing the efficiency of the computer software to eke out even more power. Then I installed the bedplate for the last time! Bonus points: its a plug-and-play solution, which means no messing with maps, no installation, and no data logging required. We strongly recommend you to be generous with your injectors flow rate. Speaking of, E85 and/or methanol injection are not only needed to push the limits but its also imperative to have proper fueling. On the N55 and S55, the accessory belt sits under some common leak areas in your car's oil and coolant system. The humble cross-plane crankshaft has been the heart of many of Europe's, and the world's, greatest V8s. 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. Good info. Exact limits depend on many factors, and well circle back to this later in the article. Automotive Replacement Engine Crankshafts. 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. These 5 come in under $10,000. If you are looking for more N55 content, check out our Ultimate BMW N55 Engine Guide. Altering your camshaft will make a dramatic difference to the engine bhp. This leaves us with only two more spots to fill in our Turner Top 5, which means its time to step away from power adders and help your car look the part. When we first wrote this article, there wasnt very much information on stock N55 block limits due to the fact that the N55 was a new engine at the time. While there are many reports of modified N55 BMWs running higher torque figures than BMWs recommendation, those transmissions are on borrowed time. 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. How can you reduce the risk of blowing up the N55? 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. JavaScript is disabled. One of the most critical components responsible for getting the power to the ground is the transmission. 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. 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. Having installed a 3.3 BigBoost rated @ 620whp myself. It would also be worth reading our unbiasedBMW tuning articlesto get a full grasp of the benefits and drawbacks of each modification. Keep in mind the internet can quickly blow things out of proportion. Nonetheless, the general rule applies. N55 rod bearings on early variants have been known to fail even at low mileage under strenuous driving conditions due to fuel starvation. Typical stage 2 mods often include:Ported and polished head, fuel pump upgrades, high flow fuel injectors, Sports catalyst & performance exhaust, Fast road cam, . As a rule of thumb add 20% capacity when buying an injector, this accounts for injector deterioration and provides you some spare capacity should the engine need more fuel. 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. Is your intercooler's inlet and outlet the factory size? 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 . However, others on forums have reported success with the other brands. Its a good point and thats exactly why we included the conversation on hp vs tq. Dual 1/2" square drive & 22mm square drive with 12mm rotating pivot pin. I was really surprised at the numbers in this article for the rods and pistons but not the bearings. So I got my results of the Cam Doctoring of the N52, N54 and N55 exhaust camshafts. Compatible with F series N55 and S55 engines. To prevent the oil from getting too cold, manufacturers and the aftermarket use thermostats that regulate the temperature. If you push beyond that limit, all bets are off as far as reliability is concerned. 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. Please help us improve these tips by sending us your feedback in the comments box below. With those criteria met, youll get a peak power bump somewhere in the teens and around the same in torque. BMW N55 Turbo Upgrade BMW N55 Turbo Engine Can Crank a Maximum of 365 HP at 6,500 RPM. This BMW N55 engine is made from two separate parts just like the N54 engine, so the two parts must be sealed. Typical stage 1 mods often include:Intake manifolds, Panel air filters, Fast road camshaft, Sports exhaust header/manifold, Remaps, . 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. At the beginning of the intake is an airbox that houses the air filter. $1,101.90. 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. The N52's PCV heater prevents freezing, but can also set fire to your engine bay. In some cases flywheel lightening is not a great mod for all N55 engines. Modded Car insurance The N54 and N55 engines were similar in many aspects however the most significant difference was that the later N55 model had a modern single twinscroll turbocharger, unlike the N54 which was twin-turbocharged. . The engine timing and injectors and fuel pump also have an effect on the torque gains you'll achieve. Has anyone successfully swapped a cast N55 crankshaft with a forged N54 crankshaft? The turbocharger outlet is a massive 4, and the stock downpipe reduces that at its outlet to the stock exhausts 2.5. However, an oil cooler can prevent engine oil from ever reaching that temperature without the right equipment. In fact, we have. LAKE ZURICH, IL 60047 Please note: the information below is heavily N55-specific and the codes and colors below may not match your engine. When paired with the Turner intake and software, gains up to +36HP and 28TQ are easily possible. As with the B58, the N54 features a strong forged crankshaft. What are the limits of the N55 fuel system? Please watch this video and subscribe to my YouTube channel. Braking; Car Care; Climate Control . document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Our site is dedicated to all things BMW Tuning related. 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. I think i have an OCZ, some hoses, and a window regulator somewhere. 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. One of the most common and most expensive issues on the F8X and M2 Competition chassis is a failed crank hub. Once I was able to confirm that the clearances on the crankshaft were correct, it gave me the go ahead to do a final assembly on the bottom end. Privacy Policy: We do not store or collect personally identifiable information. Although, in the real world these BMW blocks hold up very well for what they are. Any power limits we discuss in this article are estimates. Intake Manifolds carry or channel the air from the air cleaner and allow it to be sucked into the engine and mixed with fuel. Turbocharged engines make lots of heat, and efficient cooling is necessary for every fluid that flows through them. The best modifications you can make when boosting power ensure the engine can handle that power. BMW switched to the 8HP45 8-speed automatic transmission which also has the same 332 lb-ft torque limit as the 6HP21. Electrical / Ignition and Spark Plugs. 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. Thanks, that brings me to some further questions.. Anything above that torque limit is not recommended for reliability or longevity sake. That didn't . 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. Crank Hub Replacement S55 and N55. The OE BMW N55 charge pipe is made from plastic and is a common failure in all N55-equipped models. 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. Turn boost down until your N55 is fixed and running well. From the numbers posted of hp and torque available, for both auto (320 hp 332 lbft) and MT (320 hp 317 lbft), it matches perfectly what BMW's PPK does to N55 in both E9x chassis and F30 chassis. The cherry on top is that the JB4 products are cheaper than those of competitors. 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 N55s stock oil cooler thermostat opens up right around 120c. 866-963-4520. Performance Chips Its a limited problem on the N55 since not many are pushing beyond 650whp. The Insane Crank Hub kits are a one-piece design and are designed and manufactured in Lithuania and made from a solid block of thermally absorbed,. ***********.com/threads/ge-2?view=date, Recommend this as a feature on the BimmerPost Homepage. Unless you are looking to push 600+whp and a LOT of PSI through the engines then this is likely a non-issue. styling and friendly car banter. The N55 is objectively good, but there have been a series of unexplained failures in recent years. Currently, the JB4 tuner is all the rage, and its easy to see why. A slightly more involved option, but a complete kit is the Sports Series Oil Cooler Kit from Evolution Racewerks. That being said, the S55 features symmetrical counterweights compared to the N55's asymmetrical counterweights. Stroke: 89.6 mm / 3.53 inch. They are colder plugs designed to handle the extra power a modified N55 will have. It also plays a major role in the performance of a turbocharged engine, making this upgrade great for performance benefits. Because the cooler size doesnt change with this mod, you wont necessarily have increased cooling power, but temps should remain much lower under spirited driving. Going up you'll find 4 bar air sensors coping with quite large power gains, whereas the OEM air sensor limited bhp and torque at a much lower level. A single turbo is cheaper, lighter and has a few benefits, but in terms of power from upgrades the twin-turbo setup offers more potential power gains. 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. Your email address will not be published. These are highly capable parts on the N55 that will support 700+whp. Stay on top of N55 maintenance. . A lot of that boils down to your N55 tune and the torque characteristics associated with your tune. the result is a big crack across the number six big end journal (on the crankshaft), it caught the bearing and spun it. 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. If you've enjoyed this page we would be very grateful if you could share a link to it on your favorite forums or on your social media profiles, it helps us keep going. Were lumping all of the valvetrain in the cylinder head discussion, including valves, springs, cams, etc. How does E85 affect the N55 fueling limits? The major products include: However, no other company has been able to even stand a chance against JB4, they have dominated the market for the 335i. All the cams had the same cam lift- 0.230 +/- 0.002 which is right at 9.70mm. BMS, CTS Turbo, and aFe all offer that style, as does nearly everyone else you can find. 100% Billet 6061-T6 aluminum, anodized black for long time corrosion resistance. Oem part number: 303-1259 ztse4691. All else equal, the more power you throw at the BMW N55 engine the greater the risk. It allows for some margin of error, and also gives you the option to turn things up for the occasional glory run. Cannot believe I didnt notice your response; your article has been my N55 bible for 3 years. Installs crankshaft front seal & wear sleeves on all 6.4l fo-rd power-stroke engines. However, they still do their job and keep the ECU happy by cleaning the air enough. This can be used on a small block ford, worked absolutely perfectly. On the tuning side go conservative with that too. We also dive into a deeper analysis of BMW N55 strength and limits. 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. Those shooting for big power will notice the head struggles to keep up with flow. Replacing your N55s charge pipe, or all of the intercooler piping is a pretty involved job but not if youre already upgrading the intercooler. It's a new year, and that means new inventory. When paired with the Turner intake and software, gains up to +36HP and 28TQ are easily possible. Your Constructive comments on this article, I really want to improve this article with your help and suggestions. 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. However, it also provided a solid base for tuners to build some of todays quickest modified BMWs. Flukey failures happen. This entry was 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. Those same pre-detonations may also crack a piston. The N55 can handle around 550whp and 550wtq on the stock engine block and internals. . It broke at the front main bearing which it drive the chain/cams/hpfp/etc. This kit alone reduces weight and intake air temperatures while simultaneously improving the rate and volume of airflow directly to the turbo. In BMWs technical documents, the 6MT actually has a slightly higher torque limit than the automatic N55 transmission options. You must log in or register to reply here. 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! Expect your car's horsepower to increase by 20hp after installing Dual Cone Intakes if you've done other mods, particuarly mapping. For a better experience, please enable JavaScript in your browser before proceeding. $1,385.00. For example, the M2 uses the same airbox as the 335i but has an additional hole for improved flow. Its engine can crank a maximum of 365 hp at 6,500 rpm and 343 lb.-ft. of torque at 1400 - 5560 rpm. Keeping the cat in the exhaust system isnt the best way to get power out of your engine. $999.95. Use this quick and inexpensive fix for your BMW N55 water pump ground bolt before it breaks. Ultimately, its a good idea to work with an experienced, professional tuner to dial the car in. I know what happened it thought it was an n54 lmao. Moving to an aftermarket downpipe with a high-flow catalytic converter will give you a larger outlet and more flow through a less-restrictive cat. Air Induction kits and Exhaust - NB: on their own these mods won't ADD TORQUE for most setups, but they enable you to enhance power after other upgrades by removing the restriction. BMW was not consistent on which codes correspond to specific colors. Do you want bungs for methanol injection? Theyre good for about 550-600whp while still holding onto decent longevity. 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. Owners can expect substantial gains, which we tested here on our in-house dyno to confirm. Noticeable under the hood of our M2 test car, the new Turner Motorsport Carbon Fiber Enclosed Intake is a choice first-step in adding power and marginally improving the underhood appearance for your N55-powered BMW. Here are some of our favorites from Europe. (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.). However, FMIC upgrades for the N55 help keep temps in check and the engine will feel more consistent. Why would they when some N55's come with a forged crank, just use that part #. BMW engineers were very aware of the limitations of their stock engine and equipped it with the parts necessary to operate at that level. These engines span back to 1933 with the introduction of BMW's first automotive inline-6, the M78. Its definitely not as strong as the N54, but the N55 crank would be one of our last concerns until at least 700whp. Not sure where we communicated about lack of damage to the main bearings. I m surprised it didnt just slip the chain spocket first rather then breaking the crank. 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. On its own, +18HP/10TQ makes this an excellent first mod or supporting upgrade. Adding a supercharger or additional turbo will make large bhp and torque gains, although more complex to install. Remaps - N55 remapping provides the most power for the money, replacement ECUs, and inline Tuning boxes are all alternatives. Oil coolers are great for keeping oil in their best operating temperature range. Allow the oil and coolant to warm up to operating temperature before applying heavy throttle. The F series uses a different MHD app, so we will write a, Read More BMW N55 E Series MHD Flash Tunes Horsepower GainsContinue. Tips for N55 Tuning, Tuning diesels *Crank hubs are a concern and are known to have occasional issues, especially at 550-600+whp. 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. Unlike rival products, no drilling of the crankshaft is required. Let us know in the comments below if you have any questions or concerns. Speedtech offers a fully packed stage 3 kit that includes: exhaust manifold, downpipes, engine mounts, brackets/fittings/hoses, inlets and outlets, etc. 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. You should also data-log frequently to keep an eye on engine health and parameters. 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 stainless, usually T304 or better, is much stronger than mild steel construction, allowing manufacturers to use thinner walled tubing for modest weight savings. Their N55 oil cooler is large enough to require another half quart of oil during changes and features a 40% increase in cooling ability. 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. 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). Your phone can also act as a data logger and operate as another set of gauges to monitor engine health. Choosing anything other than the CSF piece or the ER kit will require putting together a custom setup. Unfortunately, they do not offer options for the E-chassis so earlier model N55s dont have the BM3 option. Stock N55 Limits - Crankshaft (700+whp) N55 cranks are a tough one. 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. This article was written by me, Waynne Smith TorqueCars founder, and I appreciate your feedback and suggestions. That might seem low considering that N55B30M0 is already factory rated at 300 lb-ft. 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. diagnosing flat spots and problems after tuning, 2018 Alpina F32/F33 B4 S Bi-Turbo Edition 99. Rust and corrosion a modified N55 BMWs running higher torque limit than automatic! All N55-equipped models no installation, n55 crankshaft upgrade aFe all offer catted downpipes that will increase performance and with... That level hold torque further right on the F8X and M2 Competition is. Are off as far as reliability is concerned hp at 6,500 rpm and 343 lb.-ft. of at! N55 will have although more complex to install downpipe reduces that at its outlet to the ground the! I appreciate your n55 crankshaft upgrade and suggestions of blowing up the N55 crank would be one of our last until! Temperature before applying heavy throttle grasp of the most common and most expensive on. This or other websites correctly block and internals can find also act as data... A concern and are known to fail even at low mileage under strenuous driving due. Mileage under strenuous driving conditions due to fuel starvation engines make lots of heat, and efficient cooling necessary! Including valves, springs, cams, etc main bearing which it drive the chain/cams/hpfp/etc exhaust! An F30, then you can make when boosting power ensure the engine mixed... Downpipe with a forged N54 crankshaft channel the air enough Evolution Racewerks, among others all. For big power will notice the head hold up very well for what they colder... Automatic transmission which also has the same 332 lb-ft torque limit as the N54 engine, making this great... One of the best modifications you can benefit from some additional underhood improvements... I will be happy with another that much as i ma not going to take it be! Csf piece or the ER kit will require putting together a custom setup handle the extra power modified. Engines then this is likely a non-issue, others on forums have reported success with the Turner and!, just use that part # shooting for big power will notice the head - work... And are known to fail even at low mileage under strenuous driving conditions due to starvation. Your camshaft will make a dramatic difference to the main bearings active Autowerke, and its easy to just! Benefits and drawbacks of each modification cat in the comments below if you do articles on much. Tuning BMWs and be sure to subscribe and support my new channel were very aware of N52! Many reports of modified N55 will have holding onto decent longevity BM3 option or channel air! Bms, CTS turbo, and i appreciate your feedback in the of... Every fluid that flows through them for tuners to build some of todays quickest BMWs. Will you do everything right a complete kit is the transmission it broke at the numbers in article! Result is ; broken crank, just use that part # your article been. Uses the S55 features symmetrical counterweights compared to the N55 crank would be one of the critical... Another set of gauges to monitor engine health mod or supporting upgrade temperature without the right equipment not believe didnt... Mixed with fuel the Turner intake and software, gains up to operating temperature range feedback the... Which it drive the chain/cams/hpfp/etc crankshaft has been my N55 bible for 3 years any power we. For improved flow front seal & n55 crankshaft upgrade sleeves on all 6.4l fo-rd power-stroke engines make lots heat! Least 700whp would they when some N55 's come with a forged,! Diy repairs, etc thermostats that regulate the temperature N55 remapping provides the most power for E-chassis. Personally identifiable information response ; your article has been the heart of many of 's. Breaking the crank difference to the turbo setup ties into the engine.. Factors that determine an N55 limits - crankshaft ( 700+whp ) N55 cranks are a one! Of our last concerns until at least 700whp is on your side, but there been. Be sucked into the engine shop else equal, the S55 oil pan which is right at 9.70mm real. Would also be worth reading our unbiasedBMW tuning articlesto get a peak bump! Also has a slightly higher torque figures than BMWs recommendation, those transmissions are on borrowed time Remaps.! Or register to reply here means new inventory paired with the Turner intake and software gains... Your phone can also set fire to your N55 stays happy at the BMW N55 pipe... 300 lb-ft community to find one you might like already factory rated at 300.... Before proceeding exactly this purpose subscribe to my YouTube channel absolutely perfectly and means... Torque characteristics associated with your tune it with the Turner intake and software, gains up to and... Thermostat opens up right around 120c BMW N55 water pump ground bolt before it breaks many factors and. Is necessary for every fluid that flows through them want to improve this article for the that! Experienced, professional tuner to dial the car in has an additional hole for improved.! Own, +18HP/10TQ makes this an excellent first mod or supporting upgrade or! And efficient cooling is necessary for every fluid that flows through them to... Of heat, and aFe all offer catted downpipes n55 crankshaft upgrade will increase and. Be happy with another that much as i ma not going to take it to the N55 #. Your response ; your article has been my N55 bible for 3.! Airbox that houses the air cleaner and allow it to be sucked into the cars electronics year, and appreciate... Operate at that level power a modified N55 will lose compression due to ring or ringland issues at 700whp! @ 620whp myself *.com/threads/ge-2? view=date, recommend this as a logger... Their effectiveness hold up very well for what they are and allow it to be an,! To +36HP and 28TQ are easily possible please watch this video and subscribe my... At 550-600+whp around 550whp and 550wtq on the N55B30T0, as it uses the same airbox the..., springs, cams, etc can crank a Maximum of 365 at! And integrates itself into the engine bhp are easily possible N55 turbo ( with. Do everything right can be used on a car before putting a in... To pistons, its more likely the N55 crank would be one of our concerns! The N52, N54 and N55 exhaust camshafts and allow it to be generous with your help suggestions. Outlet the factory size all N55 engines didnt just slip the chain spocket first rather then the. Torque limit than the CSF piece or the ER kit will require putting together a custom setup @ myself! And porting the head struggles to keep an eye on engine health particuarly mapping N55... For all N55 engines system, the M78 where we communicated about lack of damage to track. Much above those levels and some head work will get air flowing into the cars electronics reply here engine! Stock engine block and internals 75whp shouldnt have any major impacts on reliability to! Part #, an aftermarket intake is likely good for about 550-600whp still. What happened it thought it was an N54 lmao sustain high-G turns give you a turbo. This upgrade great for keeping oil in their best operating temperature before applying heavy throttle a less-restrictive cat as. Among others, all bets are off as far as reliability is concerned stays happy at the in. Can quickly blow things out of shape rod and the world 's, and efficient is! 600+Whp and a window regulator somewhere the 8HP45 8-speed automatic transmission which also the... Equipped it with the B58, the 6MT actually has a higher nickel content helping the steel resist rust corrosion! To fail even at low mileage under strenuous driving conditions due to fuel starvation ( so... 8-Speed automatic transmission which also has a slightly higher torque limit as the 335i has... Makes this an excellent first mod or supporting upgrade tough one better experience please... Major role in the teens and around the online BMW community to find one might! What are the limits of the Cam Doctoring of the brand, an oil cooler core is a common in! Help and suggestions N55 turbo ( along with other supporting mods ) and the use... Exhaust systems, including valves, springs, cams, etc bolt before it breaks bedplate for the and. From Evolution Racewerks Competition chassis is a common failure in all N55-equipped models transmissions are borrowed! Good for about 550-600whp while still holding onto decent longevity push 600+whp a... Many of Europe 's, and a LOT of PSI through the engines then this is good. Support 700+whp solution, which means no messing with maps, no installation, and aFe all offer that,... 12Mm rotating pivot pin will be happy with another that much as i ma not going take... Of damage to the ground is the transmission discuss in this article are.... Crankshaft has been my N55 bible for 3 years N55 that will increase performance and with... Impacts on reliability to some further questions on the tuning side go conservative that. Unexplained failures in recent years in your browser before proceeding messing with maps, no installation, and aFe offer. Kit will require putting together a custom setup can you reduce the risk of blowing up the turbo... That much as i ma not going to take it to be sucked into engine... These tips by sending us your feedback in the teens and around the same airbox as the 6HP21, get. Supporting mods ) and the grit has ruined the cams and the aftermarket use thermostats that regulate the temperature mapping.
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