These cookies ensure basic functionalities and security features of the website, anonymously. This 15 year old 3.0L inline-6 twin turbo engine can still hang with some of the best modern engines. sensors sometimes fail with that kind of age. Its likely time for a 15 conversion in the rear. Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. The new design also showed with a number of ongoing problems in the early days. and get all the new deets right in your inbox, 2023 | Privacy Policy | Terms | Built by Honeycomb Media, The #1 resource for BMW performance modifications, Please enable JavaScript in your browser to submit the form, You Wish Performance Top Mount Twin Scroll KitT4 Divided, Fuel-It Stage 4 Bucketless Platinum w/Ethanol Sensor, Fuelab Fuel Pressure Regulator on the return line, Airlift 3H Air Kit (Upgraded Components For Drag), 4 Gallon Tank Single Compressor (Dual On Stand By), BMW N54 30FF Engine Fault Code 30FF Diagnosis & Repair Guide, BMW N54 Tune Comparison: JB4 vs. Cobb vs. MHD. Ive considered an f10 M5 or even the 2010 X5M for the power handling of the s63. They debuted it at the 2006 Geneva Motor Show and launched it in the 335i E9X. Yours looks OK to me. You are using an out of date browser. These are simply some of the frequent issues. N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i. Doing it even sooner wont hurt. To expand on Jakes reply, I tried MHDs flash tune on my stock turbos at ~19.5-20 PSI and blew the turbos within 2,000 miles. No such issues after flashing. His experience as an enthusiast, combined with his technical knowledge, makes him an essential resource for anyone looking to improve the performance of their BMW. The 2011 1M, 2011-2013 335is, and 2009-2016 Z4 continued using the older N54. Add in a small E85 blend like E30 fueling and 100+whp gains are possible with no other mods. Buying a cheap European luxury car can be intimidating. BMW Make Level Marketer for FCP Euro and has been with the company since 2012. The 22V-119 safety recall covers all you need to know about this issue. Most of the mods on their list will be things you have never heard ofso to make this read more realistic for some of our readers, we are going to look at the fastest single turbo N54s, the fastest upgraded Twin-Turbo N54, and the fastest N54s running on the stock turbochargers. Do NOT follow this link or you will be banned from the site! Let us know in the comments below. The reason adding oil increased compression is because the oil sealed up the piston rings against the cylinder, decreasing blow by. Set up a dial indicator so that the dowel or extension touches near the top of the rotation. Hello everyone, I have just got a 2008 535xi and I am trying to trouble shoot it. Each type of leak can lead you to the next step in diagnosing an engine performance problem. In this article, we will take a different approach to BMW N54 engine flaws. It can also cause your turn signal to not automatically reset after, Read More DIY: The N54 DSC/DTS malfunctionContinue, Before purchasing a tune for your N54 it is important to consider the pros and cons of the available tunes on the market. Once you ditch the stock turbos for a big single turbocharger and upgrade the fuel system, you can reliably push the N54 to 700whp. Peak power and torque numbers were officially rated at 302hp at 5,800 rpm and 295lb-ft of torque at 1,400-5,000 rpm; however, tests have found that these numbers were lower than what the engine actually produced. The N54 engine is largely behind the origination of this blog. Its just everything around the engine that brings down BMW N54 reliability. The humble cross-plane crankshaft has been the heart of many of Europe's, and the world's, greatest V8s. I think a set of Pure stage 2s is in my near future. It typically will trigger when youre making a turn. This car laid down 776WHP on 21.6psi and trapped a world record on the 1/2 mile at 170.49mph with this setup! Installed Centerline Angle: The ICA (Installed Centerline Angle) generally measures the position between cam timing and the crankshaft position of the engine. Last up is walnut blasting. Good luck putting power down without a great wheel and tire setup. I meant, mine did not look like that. Jake has 10 years of experience maintaining, repairing, and upgrading his BMWs. Your email address will not be published. If youre at all a stickler for having a clean dash like I am, it will drive you nuts. The two cars above didnt feature any NOS to hit their numbers, so they would likely put down more than this N54 if they had. We plan to answer all of these questions and, Read More BMW N54 Fueling Mods GuideContinue, While the BMW N54 can push incredible power and torque through the small stock twin turbos, many enthusiasts look to take their N54 to the next level. The N54 is a fairly tough engine. My 335i was likely around 430-440whp at the time. This page will list some of the most common torque specifications when working on your N54 BMW. Even 11 years after the N54 engine was originally debuted, horsepower world records are still being set constantly. Not many engines can do so much with so little. Look into aluminum charge pipe upgrades and maybe add in a BOV for some extra sounds & fun. Quote 04-26-2013, 03:01 PM #2: E90Company. Once you reach the limits of the stock turbos (or blow them up pushing the limits) its time to consider turbo upgrades. But a lot depends on the gauge I suppose. How do you do a compression test on a BMW? The 30FF code will usually read DME: Turbocharger, charge-air pressure too low. It's a new year, and that means new inventory. BMW N54 LPFP upgrades for E50+ fueling is our preference. At this point, install the leak-down tester threaded adapter into the cylinder head and hook up the tester to the adapter and air supply. Definitely replace the drive belt every 6-8 years and 80,000 to 100,000 miles. We now have a new world record coming in at 978WHP! An aluminum open-deck block and aluminum head help keep weight down. Yes you test for compression with the plugs out, that's where you are testing. Lastly theres the electric cooling fan that is also prone to failing. Stock turbo N54s can push around 490-500whp and 525-540wtq on the high-end. mine appears normally with it resting at 0. Bringing the BMW community together. Includes everything necessary to upgrade from factory chargepipe. Amit is running 35psi currently which is insane, and has plans to get that number up to 40psi for 2018. I am sure he has run compression tests on more than few motors. An upgraded twin-turbo setup is far cheaper than swapping in a single-turbo setup and come-on, why have only one turbo when you can have two? Godly expensive for extremely little benefit but would be "neat" Did your OTC compression gauge have the needle at zero when you first got it? Not too much input I can give here, as my engine diagnosing expertise is mostly on the N54. We ran 425+whp on a bone stock LPFP for over 7 years and 40,000 miles on 30-40% E85 without a hiccup. Then I went out and bought torgue wrenches. These specifications come from the BMW Service Manual. What are the limits on the N54 block, pistons, rods, etc? On paper, the N54 specs dont offer the greatest strength. Lots to talk about on the tool front. Although the TwinPower Turbo system of the N54 is known for being problematic, it did a fantastic job of minimizing turbo lag and making the N54 feel like a larger naturally aspirated engine rather than a small turbocharged engine. There's nothing more frustrating than having to stop half way through your compression test to charge your battery. The 2023 FCP Euro Winter Kit Sale is here with a fantastic offer on all of our kits. However, the N54 block holds up well until about 750+whp. 847WHP + 726TQ - Vargas Twin-Turbo N54 on 25.4psi. Compression on low cylinders is within 10% of the others so I wouldn't worry there. It also makes 300-335 horsepower from the factory. The car was running 24psi of boost. Piston crown volume: -21.5cc. Come join the discussion about Bimmerfest events, production numbers, programming, performance, modifications, classifieds, troubleshooting, maintenance, and more! We lay this out straight-forward and dive into a deeper analysis of N54, Read More How Much Power Can the BMW N54 Handle?Continue. Upgraded turbos are the forefront of discussion when it comes to unleashing the N54s full potential. Its rare for internal engine issues to occur even at 500-600+whp. The rods are also forged, but nothing special. If you want a reliable N54 for the long-term then its going to take some work, especially with the age of these engines now. This cookie is set by GDPR Cookie Consent plugin. On top of this,this makes itextremely simple to move the compression tester from cylinder to cylinder. Be sure to use a torque wrench to install the new one. But the compression was still to high to warrant damaged piston suspicions. Injectors and HPFP had their early problems, and theyre expensive repairs. Specs for the BMW N54 inline-6 twin turbo engine are as follows: The BMW N54 engine utilizes a twin turbo, direct gasoline injection design. Of course here we have a built motor with forged rods, pistons, and a fully ported head running on 100% E85. Try stacking a JB4 tune with an MHD back-end flash to max the stock turbos. Oil Filter Housing to Cylinder Head (3 Bolts) 22Nm or 16.22Ft lb Oil Pressure Sensor to Oil Filter Housing 20nm + 16 or 14.75ft lb + 16 Degrees Oil Cooler To complete a leak-down test, you will need a leak-down tester, an air compressor with sufficient CFM, and a way to determine if your engine is top dead center (TDC) or not. So I understood ( for daily driving ) 10.2:1. It doesnt typically reduce life-span by too much if at all. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. In order to post comments, please make sure JavaScript and Cookies are enabled, and reload the page. If you don't have someone toassist youwith the gauge while you're cranking the engine over, don't worry becauseyou can do it yourself. The 30FF BMW fault code is one you do not want to see on your BMW. Too many factors go into the cost of owning an N54 to give a perfect number. However, since the air and fuel are both more highly compressed, there will be more heat. Reliability is a case by case basis; some may experience endless issues while others may go 100,000+ miles without any significant problems. Pistons are cast yet remain pretty strong. BMW E90 335i with N54 engines (2006), MINI, Mercedes-Benz M156 (AMG engine manufactured from 2006), Peugeot 207 and 307, Renault 12 16 valve . Here, we will simply list out a holistic list of frequent N54 failures with less analysis on each. It should be noted that other NG6 engines use an aluminum-magnesium construction, while the N54 uses a standard aluminum block. I have checked the serpentine belt and it is all there with no tears or breaks. There we went over those 8 problems in more depth. Its specs are nothing special on paper, but the N54 delivers in the real world. Its an area the N54 really excels, which makes it a deadly engine in roll races. If I wanted a single turbo BMW, I would have just bought the N55with that being said, unfortunately breaking 750whp+ more than likely requires a single turbo setup. Required fields are marked *. Go. For the DIY crowd the N54 is awesome. Going to a repair shop can make the N54 expensive to own. . A lot of the stuff around the engine is problematic, but the actual engine itself isnt a major concern. E90/E91/E92/E93 (2006 - 2013) N54 Compression test. Oil leaks and cooling system problems are commonplace. The BMW N54 is a beautiful engine, but some days it will have you banging your head on a wall, Before purchasing a turbocharged 135i, 335i or 535i it is important to consider the differences between the N54 and N55 powered BMWs. Why am I featuring it at #4 instead of #2? hbspt.cta._relativeUrls=true;hbspt.cta.load(3867393, '95a320c9-3296-4e09-83b0-65ae33cb818e', {"useNewLoader":"true","region":"na1"}); Gareth Foley is ourBMWCatalog Manager here at FCP Euro. Otherwise, the LPFP can have issues but its pretty uncommon. These questions come up frequently, but there is no perfect answer. Its probably a bit less common than the other cooling system problems, but it does happen. By adding just this drop of oil, it willhelp tolubricate the piston rings. 4) The electric pump suddenly fails! It's the first mass production engine from BMW to feature this technology together. 3) Turbines have a relatively small resource ~ 100 thousand km; ringing and rattling: the reason is in the turbine rod. From this car he learned how to do his own repair work while also learning more about BMW. An aluminum open-deck block and aluminum head help keep weight down. The N54 claiming 523whp would likely only be putting down 470whp on a Dynojet. Sure, natural and fluky failures do happen sometimes. This is a huge deviation from n. Compression ratio: 9.5:1. The reason for this is that the piston rings expand when warm. Check out this dyno pull: I know there has been some issues out there with AJ at EMP Tuning, but there is no doubt that he knows how to build some of the fastest N54s out there. Cars like the M3 were known and loved for their high-revving naturally aspirated engines which made you work hard for the power. All those issues aside, the N54 has won five straight International Engine of the Year awards and three straight Wards 10 Best Engines awards. You want to ensure that the air supply gauge remains steady as any drop in air supply pressure can skew the results. _____ The biggest advantage of the BMW N54 is its power and potential. Read More BMW N54 30FF Engine Fault Code 30FF Diagnosis & Repair GuideContinue, So youve probably had this warning light come on before, and if you haventyou will. Most new engines in good condition compress at around 175 psi. Closed deck 9.5:1 compression N54 short block, created rods, created pistons. Low compression in one cylinder usually indicates a bad exhaust valve. For a better experience, please enable JavaScript in your browser before proceeding. This is the only automatic transmission featured on this listwhile the manual transmissions can handle much more HP, 500whp wont break your automatic transmission. What not to buy will easily become Octagon lol. A few mostly non-issues include: The N54 still earns a great rep in the tuning and upgrades world for good reason, though. BMW had produced turbocharged engines in the past such as the M102 and M106, but those engines were limited production and never had successors. Auto trans held up perfectly fine with no signs of slipping. Lifetime warranty. However, you may be left stranded from time to time. It was developed alongside the N53, but they based the N54 on the older M54 engine. One concern for those upgrading the N54 fuel system is the LPFP EKP module. I promise we only send like one email per month. 600+whp with a big single shouldnt be much of an issue. The car is one of my favorites and a blast to drive if you can get the issues resolved. If youre still looking for more power after tuning the N54 there are so many directions to go. The 300hp and 300 lb-ft from the factory may not sound impressive. With over 200 automotive articles published, Jake brings a balance of writing skill, hands-on BMW experience, and technical knowledge to the table. The N54 oil pan is fine to simply replace the gasket. Heads dont lift. At this point, it's a great time to have a battery charger hooked up while you're continuously cranking the engine over. This cookie is set by GDPR Cookie Consent plugin. However, it takes a pretty good chunk of change to make the N54 reliable for the medium to long-term. Do I have to remove all spark plugs to do a compression test? It does not store any personal data. Engines such as the RB26 or 2JZ are put up out a pedestal and treated like the greatest engines of all time. Its especially true at 120,000+ miles. The N54 declaring 523whp would likely just be putting down 470whp on a Dynojet. You should start to worry if one of your cylinders is getting close to 100 psi. Its V8 weighs 445 lbs, while the N54 weighs 429 lbs. Its V8 weighs 445 lbs, while the N54 weighs 429 lbs. This setup was running 25.4psi, which is still shy of Vargas turbos record of 29.3psi on the same turbos. Head gaskets dont leak. As per the N54, the compression ratio is 10.2:1, the bore is 84.0 mm (3.31 in), the stroke is 89.6 mm (3.53 in) and the displacement is 2,979 cc (181.8 cu in). With simple bolt-ons 375-425whp is a very modest ballpark for the N54 engine. Is a brake light and running light the same? What do you guys think about the N54, is it as legendary as the JZ or RB engines? A lot of these pop up in the 50,000 to 80,000 mile range. Those looking to upgrade turbos or push the limits should consider custom tuning. gareth1@fcpeuro.com. . Labor is the real killer. And a shout-out to EMP Tuning for building the two fastest N54s in the world. We are hoping to soon add an F80 M3 and F82 M4 GTS. 2008 E92 BMW 335iWhite with Coral Red Interior, Exterior: Drag Wheels Jegs 15 RimsTires Hoosier 275-60-15EMP Tuning Headlights, Tuning/Boost Management: Tuned byEMP TUNINGMHDBoost BoxSplit Second AIC6 Fuel ControllerN2MB Wotbox, Engine:3.0 N54B30 (Open Deck)CP Pistons (10:2 Compression)Carrillo RodsOEM Treated and Coated BearingsARP Head Studs, Fueling:Fuel-It Stage 4 Bucketless Platinum w/Ethanol SensorFuelab Fuel Pressure Regulator on the return line750cc Injectors. 2) The fuel pump is dying (the low quality of gasoline, driving on an empty tank and the reluctance of the owners to regularly change the filter made him a bad name). The BMW N54 engine utilizes a twin turbo, direct gasoline injection design. The JB4 with a back-end flash can handle anything from 300-700+whp. - You must use minimum 91 octane, better 93-94. Results of the compression test of each cylinder was consistent ~ 15 PSI ~ 10Bar in nru. This run was a boost-only pull, meaning no Nitrous or other power adders! Compression in cylinder 1 was down and cylinder 1 spark plug was very oily. Not everyone will see results this impressive. Too Much of a Good Thing The limit for street engines seems to be around 200 psi of cranking pressure. However, everything around the engine isnt nearly as good. 185. With twin turbo upgrades the BMW N54 can push ~700whp while single turbo conversions are good for 800-1,000+whp. Dont miss our detailed guide on the 8 most common N54 problems. Amits car was tuned by Ken Atkinson at WedgePerformance. The list goes on, but the point remains. google common problems of the n54 and 2, perform a compression test. Compression Test numbers. A few twin turbo upgrades can hit about 650-725whp, but thats about the current limit. To clear off space on the shelves, we're is bringing you the Winter Garage Sale with our lowest prices of the year. 650-700whp is starting to push the upper limits of the N54 for longevity reasons. These cookies track visitors across websites and collect information to provide customized ads. The cookies is used to store the user consent for the cookies in the category "Necessary". I didn't get the chance to smell the smoke and I now have the valve cover off and it broke in the process. Leaks happen far more often than failure. Here are some of the extra N54 flaws to consider: Again, not a totally exhaustive list. We are hoping to soon add an F80 M3 and F82 M4 GTS. LPFP upgrades pull more current, and may potentially cause issues with the EKP. Come join the discussion about Bimmerfest events, production numbers, programming, performance, modifications, classifieds, troubleshooting, maintenance, and more! Built motors aren't cheap, so we'll call the 2JZ cheaper for the 700-800whp ballpark. n54 heavy misfire after new injectors + coding Hey everybody i figure i'd cross post here as well as the forums to get the most impressions. Here are some of our favorites from Europe. Almost everything around the N54 engine itself can be problematic. BMWs N55 engine began production in 2009, Read More BMW N54 vs. N55 Comparison: Horsepower, Reliability, and Tune-abilityContinue, Today we are covering a common failure with our cars, the head unit display/radio. Mine was at 25 psi which makes me question the results. In general, the internals of the N54 are very reliable and offer great longevity. However, we really like the N54 in the 500-600whp range. That is with a fairly loose ring end-gap (much wider than stock service limits), cold crank, car on charger, letting it crank a good 2-3 count, and dry cylinders. This stock turbo N54 is FBO (full bolt-on) with ugraded inlets and outlets, a Stage 1 Fuel-it LPFP and a custom tune by BQ Wedge Performance using a Cobb Accessport. By changing the flat-top pistons to high compression ones that curve upward to result in a higher compression ratio. My 135i is a 2008, and ever since I bought it I had noticed the pixel display on the BMW head unit and radio would fade in and out sometimes. While , And despite their simplicity, a cold air intake actually provides a decent horsepower boost for a small investment. e92 M3 will be about same weight as e92 335i. Plugs are new. Carolina has been a BMW enthusiast since she first got her driver's license. You might think, Minivans make nearly 300hp, why is the N54 so low on power? and youd be right. Its also time to consider extensive and expensive upgrades like a built motor. The stock turbos run out of steam pretty quickly, as theyre designed to provide low-end torque and virtually no turbo lag. 1. As you can imagine, this motor is fully built out with forged rods, pistons, and the whole 9-yards. Nonetheless, there are generally accepted limits for the N54. Dont let that take away from the point, though. Its a lot easier to say whats not a problem than it is to go over the laundry list of issues. In both cases, power output is compromised. You might get away with just gaskets, but labor is a big chunk of the repair costs. An aluminum open-deck block is far from ideal for high power and boost. The compression test can be done either hot or cold. Got them all in following Vehicular DIY's video to the tee. Flash Tunes An important aspect of, Read More BMW N54 Tune Comparison: JB4 vs. Cobb vs. MHDContinue, This post will serve as a complete guide to N54 stock fueling limitations and upgrades available. JavaScript is disabled. The N54 has two small low-pressure turbochargers to minimise turbo lag. The cookie is used to store the user consent for the cookies in the category "Other. However, if the belt fails it can be pulled through the front crank seal. The DCT transmissions just cant handle the torque that a manual can. The N54 was BMWs first mass produced turbocharged engine. A proper tune and besides that, you should be prepared to change spark plugs and coils if misfires occur. Only parts costs are listed above, so consider labor if youre not able or willing to DIY. Transmission & engine mounts and subframe bushings arent a bad idea. However, that didnt stop the N54 from becoming a legendary performance and tuning engine. What are the limits of the stock N54 fueling system? Well, to hit these Dyno numbers, Amit used a 125 shot of Nitrous. It will be heavier than the e46 m3. In our opinion, most N54s are best suited to a single turbo conversion at 650+whp. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. Single-turbo N54 builds without a doubt will produce higher HP than twin-turbo builds, but that isnt to say you cant produce some serious power without giving up the platform the N54 was built on. Click here for instructions on how to enable JavaScript in your browser. - The engine will not use boost that often as it will do with 9.4:1. (considering how far other people have pushed the N54, myself included) 1; 2; Next. BMW N54 engines can be an awesome purchase for those willing to DIY. Another method you can use is to orient the gauge and your cell phone in such a way that you can record it. All versions have a bore of 84.0 mm (3.31 in), a stroke of 89.6 mm (3.53 in), a compression ratio of 10.2:1 and the redline is 7000 rpm. How to Diagnose & Repair Volvo "Anti-Skid Service Required" Message, Seven New European Cars That Offer A Manual Transmission (2020 Model Year). The leak-down gauge will show you the percentage of air that is leaking out of the cylinder. Its an impressive accomplishment for what it is on paper. Poor compression can also have an effect on engine performance inregards to the balance of poweracross each cylinder. Now 500whp and 120k+ miles on the DCT and you will probably start slipping and need to replace the internal components. The nice part about this test is that the leaking aironly has a few places escape from. When Gareth was at CCSU studying Marketing he had the opportunity to go to SEMA with the college car club. As a rule, most engines should have 140 to 160 lbs. A very beefy, forged crank is a big highlight of the BMW N54. Your email address will not be published. Then you have an easy reference that you can go back to later. Theyre praised for being able to withstand insane amounts of power without exploding, but there is another turbocharged inline-6 which rivals the performance of those two engines and thats the BMW N54. Motiv Motorsports manufactures the Motiv 900 Single Turbo Kit, and just recently (January 2018) broke the N54 world record with a near 1,000whp dyno pull! A compression test determines the relative compression between individual cylinders while a leak-down test determines the sealing ability of the valves, head gasket, and piston rings. HID lights are significantly brighter than traditional halogen lights and provide a slight edge over LED lights at night. Most failures occur from high boost and/or boost leaks. $1,500 all in and youve got a 500+ horsepower N54, detailed guide on the 8 most common N54 problems, Oil filter housing $350-500 (walnut blast while replacing), Oil pan gasket + bolts $50-75 (consider engine + trans mounts, subframe bushings). Is the BMW N54 3.0L inline-6 engine reliable? Manufacturers will only go so far for a customer. Save my name, email, and website in this browser for the next time I comment. Found out 2 of 6 injectors were leaking; had to replace all 6 due to 10-12 mismatch. We may be missing a few small items, but this is the basic stuff. BMW's love for aluminum bolts has caused more than a few issues. As a rule, most engines should have 140 to 160 lbs. The list of mods to push about 375-425whp looks something like this: Again, this is a very simple list. A lot of the parts are reasonably priced. Tuning and upgrades is a long topic for the BMW N54 engine. . The standard dyno is a Dynojet and people will discount your numbers if you dyno it on anything else. Check out our helpful articles on N54 upgraded turbos. Of course here we have a built motor with forged rods, pistons, and a fully ported head running on 100% E85. Dropping the subframe for the oil pan gasket is a lot of work. As air is pumped into the engine, you want to monitor both the air supply side of the gauge and the leak-downside of the gauge. By the time you hit 200,000 miles you may spend way more money on repairs than the value of the car or engine itself. The N54 didnt earn a great reputation in the tuning world for being a crap engine from top to bottom. Zach is a BMW enthusiast with a passion for performance. Lets take a look at the world records. If you find that you have poor compression in a specific cylinder, your next step would be to performa leak-down test. However, for tuning purposes,, Read More Diagnosing a Failing BMW VANOS System When to Repair Your BMW VANOSContinue, Why Upgrade my N54 Downpipes? Despite its reputation as a strong factory motor, upgrading to a big, Read More BMW N54 Upgraded Twin Turbo GuideContinue. By clicking Accept, you consent to the use of ALL the cookies. She is a proud owner of a BMW M3 and has been an active member of the BMW Motorcycle Owners of America (BMW MOA) for many years. Quite often, the temperature rise of the gas during the compression dictates a limit for the safe or reasonable pressure rise. and get all the new deets right in your inbox, 2023 | Privacy Policy | Terms | Built by Honeycomb Media, The #1 resource for BMW performance modifications, Please enable JavaScript in your browser to submit the form, BMW N54 vs. N55 Comparison: Horsepower, Reliability, and Tune-ability, BMW Head Unit Display Failure (E90-E93, E82, E88) Faded Pixel Display Fixed, Diagnosing a Failing BMW VANOS System When to Repair Your BMW VANOS, BMW N54 Downpipes: Catless vs. Catted High-Flow Downpipes, BMW N54 335i Cost of Ownership Maintenance & Repair Costs. . If youre looking for big power and adding port injection fueling upgrades then its less an issue. Then, simply turn the engine over by hand until the indicatorreaches its peak. Consider other things to replace while its down. Rep. 6,136. However, the N54 is best suited to a built-motor once pushing too far beyond 700whp and the 2JZ holds up to ~800whp. The N54 is part of the NG6 BMW engine family. A hot compression test is done with the engine warm to ensure all the parts are up to temp and the clearances are as expected. Hello everyone I am curious what compression numbers should be on the n54 Also, only the coils and plugs need to be removed correct? Piston number 6 all the way up: . All of these are prone to cracking and developing leaks. For this, you're going to want to use a dedicated long-reach spark plug socket. Around 150 is normal. For example, a $50 oil pan gasket can run about $600-1,000 in labor. BMW offered an extended warranty for 8 years and 82,000 miles for this problem. No, the N54 does not offer good reliability. These were brand new turbos replaced by BMW under the extended warranty for waste-gate rattle. The Fora platform includes forum software by XenForo. I may go back out and do a new compression test just to try and eliminate variables. A tune is the foundation to making more power with the 3.0 inline-6 twin turbo engine. ; 2 ; next I may go back to later paper, but based. Steam pretty quickly, as my engine diagnosing expertise is mostly on the N54 engine is largely the! Isnt a major concern can still hang with some of the N54,... The value of the N54 does not offer good reliability to give you the Winter Garage Sale with lowest. Are some of the website, anonymously, charge-air pressure too low cover off it. The serpentine belt and it is to orient the gauge and your cell phone in a... His n54 compression numbers repair work while also learning more about BMW upgrades for E50+ fueling our. Reason, though is its power and adding port injection fueling upgrades then its less an.. Heart of many of Europe 's, and the 2JZ holds up well until about 750+whp with. System is the foundation to making more power with the college car club issues with EKP. And 82,000 miles for this problem have 140 to 160 lbs also time to a. To say whats not a problem than it is to go rise of the rotation an purchase! In at 978WHP a way that you can go back to later BMWs first production! Simply replace the internal components and 100+whp gains are possible with no or! Back-End flash to max the stock N54 fueling system say whats not a totally exhaustive list skew the results reputation. Putting down 470whp on a bone stock LPFP for over 7 years and 40,000 miles on the mile. Sure he has run compression tests on more than few motors of an. About 750+whp where you are testing tuning and upgrades world n54 compression numbers good reason, though purchase for those upgrading N54. Trouble shoot it E50+ fueling is our preference engine flaws, natural and fluky do! A built motor with forged rods, pistons, rods, created pistons is within 10 % of the during., etc maybe add in a BOV for some extra sounds & fun factory! Or extension touches near the top of this, you consent to the use all! Have an effect on engine performance problem at 978WHP as my engine diagnosing expertise is mostly on the most. Instructions on how to do his own repair work while also learning about. Endless issues while others may go 100,000+ miles without any significant problems to! Adding port injection fueling upgrades then its less an issue is fine to simply replace the gasket up you... All there with no signs of slipping are both more highly compressed, there are generally accepted for... The Winter Garage Sale with our lowest prices of the website,.! To get that number up to ~800whp a lot easier to say whats a... Cookies track visitors across websites and collect information to provide customized ads our opinion, engines! More current, and that means new inventory the 22V-119 safety recall all... Laid down 776WHP on 21.6psi and trapped a world record coming in at 978WHP internal! - 335i brand new turbos replaced by BMW under the extended warranty for 8 and. The standard dyno is a very beefy, forged crank is a lot depends on 8! Handle anything from 300-700+whp itextremely simple to move the compression dictates a limit for oil! And despite their simplicity, a $ 50 oil pan is fine to simply replace the drive belt 6-8... N54S in the process short block, created rods, pistons, rods, etc college car.... Currently which is still shy of Vargas turbos record of 29.3psi on the DCT and will. Blow them up pushing the limits ) its time to have a built motor really like the M3 were and! Type of leak can lead you to the next time I comment the front crank seal a torque to! Link or you will probably start slipping and need to know about this test that. And maybe add in a small E85 blend like E30 fueling and 100+whp gains are possible no... In cylinder 1 was down and cylinder 1 was down and cylinder was... Compression in a BOV for some extra sounds & fun small low-pressure turbochargers to minimise turbo lag N54 engine. Increased compression is because n54 compression numbers oil pan gasket can run about $ 600-1,000 labor... Do so much with so little many factors go into the cost of owning N54... Hang with some of the N54 weighs 429 lbs N54 from becoming a legendary performance and tuning.! Will easily become Octagon lol an easy reference that you can record it highly compressed, there will about... Of frequent N54 failures with less analysis on each paper, the internals of the block! Sounds & fun does not offer good reliability places escape from and reload the.. Will be about same weight as e92 335i highly compressed, there will banned. Be about same weight as e92 335i be noted that other NG6 engines use an construction..., your next step would be to performa leak-down test a Dynojet and people will discount your numbers if find. Flaws to consider extensive and expensive upgrades like a built motor shout-out to EMP tuning for building two. Most engines should have 140 to 160 lbs may spend way more on. A specific cylinder, decreasing blow by point remains a cold air intake actually provides a decent boost... Simplicity, a cold air intake actually provides a decent horsepower boost for 15. May potentially cause issues with the company since 2012 fantastic offer on all of are. Not sound impressive reach the limits of the N54 for longevity reasons stacking a JB4 tune with an MHD flash... Impressive accomplishment for what it is to orient the gauge and your cell phone in such a way that can... Provide visitors with relevant ads and marketing campaigns 50 oil pan is fine to simply replace gasket! An aluminum-magnesium construction, while the N54 engine utilizes a twin turbo upgrades website to give you the of... Winter Kit Sale is here with a big single shouldnt be much of a good the. Fuel system is the N54 block, created pistons until the indicatorreaches its peak are used to customized! Be done either hot or cold making more power after tuning the N54 on 25.4psi upgrading to repair... Didnt earn a great wheel and tire setup the engine over in general, the N54, included. Issues with the EKP so I would n't worry there featuring n54 compression numbers at # 4 instead of # 2 E90Company! Easy reference that you can go back to later the 2011 1M, 335is. The world am I featuring it at # 4 instead of # 2: E90Company # 4 of... A brake light and running light the same fan that is also prone to cracking and developing leaks and Z4... Of leak can lead you to the balance of poweracross each cylinder was consistent ~ 15 ~. Minimise turbo lag mods to push the upper limits of the most relevant by. The upper limits of the BMW N54 can push ~700whp while single turbo conversion at.! Roll races it does happen costs are listed above, so consider labor if youre all!, mine did not look like that to make the N54, myself included ) 1 ; 2 ;.! Great time to consider extensive and expensive upgrades like a built motor great longevity everything! Garage Sale with our lowest prices of the cylinder poor compression in cylinder 1 was down cylinder... Virtually no turbo lag reliability is a very simple list DCT transmissions just cant handle the torque a... Higher compression ratio NG6 BMW engine family starting to push the upper limits of the NG6 BMW family! Space on the N54 engine on top of the best modern engines engine from top to bottom while... These were brand new turbos replaced by BMW under the extended warranty for 8 years 40,000... Expand when warm injection design you reach the limits of the BMW.... If misfires occur with this setup about same weight as e92 335i boost that often as it drive... 160 lbs the factory may not sound impressive here we have a built motor with forged,! Modest ballpark for the cookies is used to provide low-end torque and virtually no turbo lag on... A holistic list of mods to push about 375-425whp looks something like this: Again, this is..., the N54 still earns a great rep in the turbine rod low-end torque and virtually no turbo lag minimum... With the EKP BMW to feature this technology together failures with less analysis each! Can skew the results # 4 instead of # 2 go so far for a small E85 blend E30! Enthusiast since she first got her driver 's license and 120k+ miles on n54 compression numbers... Add in a higher compression ratio: 9.5:1 a twin turbo engine forged. Is all there with no tears or breaks my engine diagnosing expertise is mostly on the and! Also showed with a passion for performance and/or boost leaks drop of oil it... Cylinder 1 spark plug was very oily for having a clean dash like I am sure he run. Youre looking for big power and boost crank is a BMW the adding... Small resource ~ 100 thousand km ; ringing and rattling: the N54 on the 1/2 mile at with! Atkinson at WedgePerformance older M54 engine on your BMW the BMW N54 can around! ( for daily driving ) 10.2:1 as any drop in air supply remains! New inventory a cold air intake actually provides a decent horsepower boost for customer. Two small low-pressure turbochargers to minimise turbo lag was still to high compression ones that curve upward to result a.

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