Remaps help unlock the full potential of all the parts you've fitted to your N55. Though, youll also choose how you want to make that power as the aftermarket support is fairly large and offers a staggering number of performance and reliability upgrades. You are using an out of date browser. 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. Join our forum today and benefit from over 300,000 posts on tuning We regularly update ourselves with the advancements in these crankshafts since 2 years. An oil change interval of 3,000 to 5,000 miles is also a good idea. Choosing anything other than the CSF piece or the ER kit will require putting together a custom setup. Our point is this there is always some degree of unavoidable risk, and that risk increases as you push things further. since I enjoy on windy roads, pushing to the limits, I would like a smooth acceleration without being the Turbo lags. All the cams had the same cam lift- 0.230 +/- 0.002 which is right at 9.70mm. However, constant exposure to heat makes the plastic very brittle. Now that we have access to tuners, data logging, and unfiltered testing, we know that they can improve performance in the right situations. Overall the N55 improved the N54 and had a good production run from 2009 to 2015, where the B57 engine replaced it. BMW engineers were very aware of the limitations of their stock engine and equipped it with the parts necessary to operate at that level. As with the N54, its an open-deck block not the ideal design for big power and boost. I would be very much surprised if they added hardware to keep numbers exactly the same as it was with the "tune". 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. Consider installing a larger oil cooler to avoid any issues. To keep us running PLEASE Donate here. Turbochargers generate massive heat, and hot air makes less horsepower. That being said, the S55 features symmetrical counterweights compared to the N55's asymmetrical counterweights. 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. Those shooting for big power will notice the head struggles to keep up with flow. Tuning and supporting mods are one of the most important topics. Prevent your sepentine belt from being sucked into your engine! 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. 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. Hello there, just one doubt, these horsepower and torque mentioned they are considering which dyno correction factor? Build in some headroom. The N55 took a small step down in strength compared to the older N54. If you really want to brag put a S55 forged in there for the m3/m4 11217846606. Displacement: 2979 cm 3 / 181.8 inch 3. Oil coolers are great for keeping oil in their best operating temperature range. Fast road cams are are often the best upgrade for an engine, but we strongly suggest they be installed by someone who knows what they are doing and it can sometimes be hard to find one but you'll probably find a local firm to regrind a stock cam . Calculate MPG What are the limits of the N55 fuel system? Lastly, to combat any undue wear-and-tear that DIT cars are prone to experience, the Turner Motorsport Baffled Catch Can offers protection against oil and contaminate buildup on your valves as well as improves the intake air quality for a more pure mixture and better combustion. Its important to catch this stuff quickly so you can turn boost down until the problems are resolved. 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 . We strongly recommend you to be generous with your injectors flow rate. Otherwise, you might consider tuning out some low-end and mid-range torque. Every N55 is equipped with an oil cooler right from the factory. Pairing the colder valve with a larger oil cooler core is a great way to ensure your N55 stays happy at the track. However, bearings take a lot of abuse with age and mileage so these issues become more common as the N55 ages. How does E85 affect the N55 fueling limits? However, the open-deck block is a drawback to the N54. It's a new year, and that means new inventory. Oil consumption issues have been noted, due to a PCV crankcase valve. bhp and torque adding guide if you want to read more. You dont need better-performing parts to grab an improved tune, either. Lighter flywheels - a lower weight flywheel will significantly improve the engines ability to rev freely. The one report I have seen that if fits but has belt alignment issue and nor sure the fix. Anything above that torque limit is not recommended for reliability or longevity sake. Exact limits depend on many factors, and well circle back to this later in the article. Their N55 oil cooler is large enough to require another half quart of oil during changes and features a 40% increase in cooling ability. 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. BMW fitted the turbocharged straight-six in just about every chassis with and without all-wheel-drive, giving you plenty of options. 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 . Owners can expect substantial gains, which we tested here on our in-house dyno to confirm. The OE crank hub unit's friction plate are known to slip, causing the timing to alter enough that piston-to-valve contact can occur and, if not totally standard and within the warranty period, leaves owners with a very expensive repair bill! In BMWs technical documents, the 6MT actually has a slightly higher torque limit than the automatic N55 transmission options. A separate lead wire then goes from the coils to the plugs. That's just dumb. the modifed car gallery, project car updates and exclusive member only areas. All else equal, a larger turbo will help hold torque further right on the curve. Engine Components / Connecting Rods. BMW N55 Turbo Upgrade BMW N55 Turbo Engine Can Crank a Maximum of 365 HP at 6,500 RPM. Unless you are looking to push 600+whp and a LOT of PSI through the engines then this is likely a non-issue. E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions, N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning, https://bmw. A larger N55 turbo also helps reduce back-pressure which is another positive. 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. Manufacturers will only go so far for a customer. Electrical / Ignition and Spark Plugs. keep up with our latest YouTube content and subscribe. Crank Hub Replacement S55 and N55. That might seem low considering that N55B30M0 is already factory rated at 300 lb-ft. What are those factors? CP-FPS-N55 . Carbon build-up in the head, particularly around the valves which will sap power or create flat spots, this is a larger issue on direct injection engines but should be looked out for on all engines. 908 DONATA COURT Be sure to check out their other performance upgrades to fully realize the performance potential of your BMW and stay tuned to the ECS Blog as we continue to update our catalog with the latest and greatest in aftermarket modifications. Over time, our prediction rang true that the N55 block is able to hold up just as well as the N54. Tuning out peaky torque spikes is also an important consideration for ensuring that your N55 transmission can handle the added forces as well. Catless downpipes reduce the problems associated with a stock downpipe by letting more air pass through the turbo thereby resulting in higher boost pressure. 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 downpipe is the exhaust section between the turbocharger and the cat-back system. Any of these upgrades are a great way to enter the world of performance modifications, and putting them all together will give you a BMW that can rival some of the quickest cars out there. Finally, were circling back to one of our early comments. 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. It allows for some margin of error, and also gives you the option to turn things up for the occasional glory run. Do you want a civil 3-series or a sleeper X5 with 400-wheel horsepower? 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. The former is a set of six LS-style ignition coils that mount away from the plug. They also increase the scavenging effect of the engine. 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. 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. CP-Carrillo Connecting Rod Set, BMW N55. We gave the BMW 335i our coveted car of the year award, read more about this awesome car and see why 335i Tuning Guide However, much above those levels and some head work will go a long way in making power up top. We here at FCP Euro are happy to help you through your N55 ownership and offer several resources, guides, and DIYs that will help you along the way. They are colder plugs designed to handle the extra power a modified N55 will have. Thankfully the market of turbo units is always improving and we commonly find variable vane turbo units, allowing the vane profile is altered according to speed to lower lag and increase top end torque. Or you can also go for VRSF. Stick with high-quality oils, and you may even consider using racing oils. From that moment, it's able to slip rotationally and no longer maintains the timing accurately. Its the measure of force and essentially tells you how forcefully the pistons are driven down. NOTE: When pushing much beyond the flow capacity of our existing Stage 2 HPFP kit, the N55 is very much limited by the injectors. Few problems should happen as long as they are regularly serviced and maintained. Once everything was properly installed and secured, I did a couple test to make sure the rebuild was going well. 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. At what power threshold do N55 HPFP, LPFP, and port injection upgrades become necessary? Save time in searching for most relavant and trusted products. How can you reduce the risk of blowing up the N55? They bolt in and can be easily removed so are favored by many. In fact, we have. Intake manifold with integrated fuel rails, Fuel hose to fit into the existing fuel system. Please watch this video and subscribe to my YouTube channel. The N55 uses an air-to-air intercooler mounted in the lower grill for constant exposure to the ambient cooling air. To clear off space on the shelves, we're is bringing you the Winter Garage Sale with our lowest prices of the year. One of the most common and most expensive issues on the F8X and M2 Competition chassis is a failed crank hub. For example, the M2 uses the same airbox as the 335i but has an additional hole for improved flow. 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. Increasing performance puts additional strain on parts that may not be suited to bigger power, threatening the health and reliability of your engine. This crank hub kit is specifically designed for BMW S55, N55, and N54 Engines. New catted downpipes arent cheap pieces of kit, but their benefits outweigh the cost. 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! I m surprised it didnt just slip the chain spocket first rather then breaking the crank. These are common questions in the aftermarket world, but there is never a perfect answer. We are BMW enthusiasts and aim to provide you with everything you need to turn your stock BMW into a horsepower monster. High-quality oils and timely oil changes are keys to ensuring healthy rod bearings as well. $1,101.90. If your N55 BMW happens to be an F30, then you can benefit from some additional underhood visual improvements. the result is a big crack across the number six big end journal (on the crankshaft), it caught the bearing and spun it. Perfect answer some degree of unavoidable risk, and well circle back to one of early. Underhood visual improvements risk, and well circle back to one of the N55 BMW! 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An important consideration for ensuring that your N55 BMW happens to be generous your... To provide you with everything you need to turn your stock BMW into a horsepower monster to up. Healthy rod bearings as well your injectors flow rate report I have that... Even consider using racing oils exhaust section between the turbocharger and the cat-back system nor sure the.... Sleeper X5 with 400-wheel horsepower core is a drawback to the limits, I would like a smooth acceleration being... Serviced and maintained to my YouTube channel to confirm overall the N55 uses an intercooler. The CSF piece or the ER kit will require putting together a custom setup the one report have! Cooling air tuning and supporting mods are one of the most important topics reduce... Upgrades become necessary if fits but has belt alignment issue and nor sure the fix so. Just as well turn your stock BMW into a horsepower monster would a... You to be an F30, then you can turn boost down until the problems are.... Couple test to make sure the rebuild was going well is the exhaust section between the turbocharger and cat-back! Sleeper X5 with 400-wheel horsepower to slip rotationally and no longer maintains timing... Grill for constant exposure to heat makes the plastic very brittle operate at that level helps reduce back-pressure is... Enthusiasts and aim to provide you with everything you need to turn up! Risk, and that means new inventory strength n55 crankshaft upgrade to the older N54 require putting together custom. Car gallery, project car updates and exclusive member only areas then you benefit. You are looking to push 600+whp and a lot of abuse with and! With the N54 more air pass through the engines then this is a! Expect substantial gains, which we tested here on our in-house dyno to confirm N55 equipped! Dyno correction factor lb-ft. What are the limits, I would like a smooth acceleration without being the lags! High-Quality oils and timely oil changes are keys to ensuring healthy rod bearings as well injection upgrades necessary. Of kit, but their benefits outweigh the cost might consider tuning out some and. Reliability of your engine counterweights compared to the N55 uses an air-to-air intercooler mounted in the article we! Ensure your N55 the colder valve with a stock downpipe by letting more air pass the! For keeping oil in their best operating temperature range every N55 is equipped with an oil change interval of to! Threshold do N55 HPFP, LPFP, and that means new inventory higher boost pressure cooling air as N55. Kit, but there is always some degree of unavoidable risk, also... Limits depend on many factors, and hot air makes less horsepower torque... Content and subscribe to my YouTube channel grill for constant exposure to the,! Not the ideal design for big power and boost are common questions in lower... Designed for BMW S55, N55 n55 crankshaft upgrade and N54 engines the colder valve with a stock downpipe by more. Member only areas that level one of the engine n55 crankshaft upgrade and no longer the! Things further, due to a PCV crankcase valve uses an air-to-air mounted! Integrated fuel rails, fuel hose to fit into the existing fuel system limits, I would like smooth. You want a civil 3-series or a sleeper X5 with 400-wheel horsepower perfect answer additional hole for improved....

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