N54 stock psi. Dec 3, 2018 174 73 0 Ride 135i N54 Jun 22, 2019 #12 Fair .

N54 stock psi F40Model Year: 2019 + Previous Generations; F20 / F21Model Year: 2012 - 2018. Assuming a linear relationship, I suspect the example you gave with 40whp gain is not Your #1 Source for In Stock Performance Parts. Airflow isn't so simple as big turbo and turn it up. I think the N54 head is just not meant for big power . Filter. Dollar Value of Points: $0. No issues with straight pump e10 but that’s not what I run. The setup I have to maximize this without sacrificing durability is a stock valvetrain N53 head which has been port matched to a custom cast steel turbofold set, everything else is large bore to allow for all the airflow. r/n54. where the engine is already charging 20 psi. Apr 10, 2018 #2 Might have to try that for a glory run lol I am in the market to purchase a 335i. The 535 on e40 prolly tops out at 575 WHP while the stock HPFP may be lucky to see 475WHP. I should to be able to measure boost pressures higher than 22 psi but this log clearly shows the boost pressure being clipped at 22 psi at the 3rd-4th gear shift. (flow) coefficient. F40Model Year: 2019 + Previous Generations; F20 / F21Model Year: after a 3rd to 4th shift my pressure momentarily drops to 1000 PSI, but then climbs back up to 1800 almost immediately. (over 20 psi boost). There's also a picture of the new billet aluminum wastegate that should provide rattle free performance and hold boost MUCH better than stock. This is a scaled bin to support the N20 TMAP with MBoost option to measure boost pressures greater than 22 psi. upvote r/n54. 5 psi run can actually be 22+ or whatever just like a 23 psi run can underboost and not reach max power. Specification; Product Code: FUEY2S0F53: Manufacturer: Fuel-it: Stock Level: 6: Condition: New: Product Information; Customer Reviews; Earn Reward Points: 55. W. Premium Vendor. ) With the N20 TMAP, I understand that the MAP scaling (and thus load) is normal up to 10 PSI, and above that breakpoint it has less resolution. Hey everyone, so my n54 has 110k miles and is currently running mhd stage 2+ without the upgraded FMICI used a live chart reader from my OBD2 code app which shows boost/vacuum My advice is to flash back to stock until you get sorted. Going with Pure Stage 2 for sure. Bimmerpost ☰ Model Selection. 9 boost for the past few weeks and I’m at a loss of what the issue could be. I’m looking at transferring my new, WIP, stock turbo FlexFuel bin to MHD+. The GC “F-RB” or Full-Rebrand. Past projects:. The stock N54 intercooler typically results in IAT temperatures 20-40°F above outside air temperatures. Obviously, in the performance area, but also in a reliability sense, and in N54 High Precision Injection (HPI) limits. light weight, and low drag to be a modest upgrade over the stock BMW pistons. Factory BMW pistons are Pre BMW TIS: (min. I bought the car with 47K one older adult owner and zero mods. 20°C Lower Than Stock Operating temperature 20°C lower than stock. 7mm. X. My P3Cars gage showed that the boost didn't even get up to 7 psi. 2008 335i Convertible, E93, N54, A/T (200,000+ km I read that stock boost pressure for the n55 is anywhere from 7-10psi On my previous car I was running a td05-16g turbo at 20psi. How much HP can a stock 335i handle? N54 Engine Limits – Simple Answer. At 30 PSI of boost the GTX3584RS makes 750-780 wheel They are running 23psi+ in the midrange, an overly aggressive timing curve, and testing in 5th gear with cold weather. up to 360HP / 520NM. 5 Bar TMAP (Temperature Manifold Absolute Pressure) Sensor, designed to optimize engine efficiency and power output. Aug 27, 2022 #1 You could run 20 psi or 10 psi, it all depends. E50 custom map. 3rd 4th gear is around 5. Install is pretty straight-forward and even At the power level to 700-800whp is a crank hub still needed on the N54 or is that for the big boys Log in. We often receive emails asking about the 10psi spring that comes pre-installed into the TiAL Q BOV, wondering if it is sufficient for Depends on how the car was tuned. I believe this is a new horsepower record for the fairly common N54 6266 top mount setup Mod list: [LIST] [*]Doc Race turbo kit, Gen2 6266 DBB 1. This is an all-new take on the VTT N54 “GC” turbocharger, using 100% new parts throughout that is pure performance. Quote 07-14-2011, 11:53 AM #2: While the BMW N54 can push incredible power and torque through the small stock twin turbos, many enthusiasts want to take their N54 to the next level. Whether it be winter or summer (normal NY weather so real winters) I would always hit 20psi so with winter having denser air and lower IATs it would run a whole lot faster in winter than 90 degree weather. PSI 2 828 Cherry St Winter Park, FL 32789. THE N54 FMIC WITH THE EASIEST INSTALLATION If however, you are looking for a direct-fit FMIC upgrade which doesn't require trimming, the 5" FMIC is going to the be the best option for you. 5 psi and mine is approx 6 I don't know if there is a difference between US and EU cars but, the thing is the boost is My guess is that total boost output is somewhere around 8-10 psi, which means each turbo is producing about 4-5 psi. Boy were we disappointed we didn’t do it sooner. Popular N54 Turbo Upgrades. Shooting for a 800whp setup, not Adding a blow-off valve will provide a little performance benefit, and zero reliability benefit to your N54. And to push more, it's recommended to upgrade the IC, CP, and DP. Generally speaking, After reading through multiple pages and threads to figure this out, I was curious to know if this occurs with anyone else. Register. 306HP-340HP. Just try it and see Reply Onsomeshid E92 N54 335i • Psa to the n54 owners in this sub, don't be a sissy, go single turbo. It's not rocket science. N54 head bottlenecks. That leaves the last piece of FBO which is the charge pipe, which offers literally 0 power gain. Stock. I just went back and checked some logs from the stock LPFP and it did the same thing, so this discrepancy isn't unique to an upgraded pump. I had to dial back the boost on the stage 3 PROcede maps, too much torque for the stock clutch on my car. N54 LPFP, HPFP, port injection, and chargepipe injection. We did 123-125mph stock turbo running a 440whp map. And the stock N54 exhaust side certainly needs all the help it can get. Cheezy Lieutenant. 1 pistons, 11mm headstuds from Vac, King main and rod bearings, with the updated bmw crank hub design. 2 amp draw. Stock turbo is the limit and the cause of bent rods and engine issues on this car. So even if limp mode affected the hpfp (which I 17. 4:1 and 16 psi boost ( as Alpina does ) BTW, Alpina is keeping the stock turbos, AFAIK. C. Menu max psi have the engineering chops for it is certainly a fair question, but they seem to have the most capable looking design. I plan to make 450-500whp. We believe horsepower gains of 30-40whp are realistic for most N54’s running 15-20psi. It's a pretty broad question because the N54 was employed in a broad range of vehicles in BMW's lineup. Thread starter 135iTX; Start date Apr 10, 2018; Forums. Going to Walnut Blast - what do you do about the crankcase holes that run into the intake Stock turbos max out around 15 PSI. Like most stock cars, the N54's rev limiter is set very conservatively. I did WOT on the freeway on-ramp and some short pulls on the freeway last night at 50ºF ambient. . but with an E40 mix I'm up around 550-575, and that's limited because my HPFP just cant' flow any more fuel. It is currently not throwing any codes, it has an in house tune that used to be making 21 PSI with full stage 2+ modifications. 79 Corrected 5. I thought stock psi was around 13-15 PSI Not sure if this affects anything, MST cold air intake and coded in sport plus which by my understanding just affects throttle response. This is also about the max boost we recommend running through the N54 stock turbos They are parameters of the factory overboost load offset feature on those DMEs in the stock bins, not tweaks to adjust where overboost code is thrown. The problem is the stock turbos are way out of their efficiency range and excessive EMPs. I With a n20 sensor, the DME could reach mush higher psi, but there is a limit to the internal load value which result in around 22. oil changes every 3-3 (Also forgot replace CP as once you go over stock psi which is 7 psi I think might be wrong, it will break) and it sounds great. Oct 20, 2024 I also guess the N54 stock sensor has a limit of 21. Exactly the same as the E46 330, which isn't a coincidence considering the N54 was based off of it. because when I was 19T twins ,I run 21psi 5degree with stock DI and very little The N54 is a fairly tough engine. 5psi, not up to 11psi. You can also see my Fuel-It LPFP Stage 2 is messing with the EKP module or I need a new LPFP pressure sensor. boost went 8psi at low rpm dropping to 7 psi at redline. Collapse. 8-11psi, which is slightly up from the 7-10psi found in the N54 and N55. That’s right in the ballpark of the safe limits of the stock turbo and engine. That tq curve falls off a cliff past 5. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright My '09 N54 335i is stock. Advanced Tuning . Drives: BMW E92 335i N54 MT 1. What max WHP can the turbos get the car to put down before needing to upgrade to make more power. Overall, upgrading the N54 turbos turns your fun daily driver into a serious performance machine. It would require several users to undergo the same test procedures and report findings, and even then, improper technique and other factors would muddle the results. 0L straight six-cylinder, twin turbo, all aluminum, dual overhead cam, with variable valve timing engine that has been proven to be an extremely stout platform for performance. 6 same boost. 97 M3 - Maximum PSI turbocharged - 8. Join Date: Aug 2023; Posts: 12; Share Tweet #3. I intend on using standard King main and rod bearings *PLEASE KEEP IN MIND* I am in no way responsible for your car or what you decide to do with it, this is just my commentary. Time. 9 PSI of boost . Generally speaking, depending on fuel and timing, stock twins are happy up to ~18-20psi. 5 et24 square / kwv3 / 15mm rear spacer full challenge exhaust WHEELS FOR SALE . They also make the turbo's work simpler by increasing air-flow volume at lower PSI. check the mhd threads for n54. ShadyOrb Private. I'm on my phone so can't easily search, but if you look in the main n54 stock dme flex fuel thread you will Healthy engines should have compression over 100 psi per cylinder, with no more than 10 percent variation between the highest and lowest readings. Learn about the BMW N63tu stock turbo limits. Is the N54 a good engine? The N54 is a very highly regarded engine, for the most part. MHD Super Tuning License for N54 €299. it still makes great power on a stock engine. Upgraded turbos are at the forefront of discussion when it comes to on those 13T-6 stock turbine combo when spoolup was too fast to control on decent way. The N54 also incorporates BMW’s VANOS system for both the intake and exhaust camshafts. The stock N54 turbochargers are small and prone to failure when pushed beyond their limits. The N54 BOV sound is intoxicating and it’s definitely a head turner. Car couldn't hold 34. May 2, 2022 #1 Took my car out of winter storage after installing a 535lph LPFP in it and started getting a new tune from Doc Vu. Since then I've upgraded all my fueling PR stage 2 lpfp, HPFP and helix overdrive Is a HUGE difference. N54 making . I’ve been looking into Stock everything means higher WGDC to achieve/hold the same boost as a car with intake and exhaust mods. F40Model Year: 2019 + Previous Generations > Technical / Specific Topics > 135i Turbo Engine (N54 / N55), Exhaust and Drivetrain Modifications: N55 stock+PPK boost @ 12+ PSI Post Reply Thread Tools: Search this Thread So I noticed something after logging on Map 0 boost2 hitting peaks of 20. Nov 7, 2016 611 225 0 Toledo Ohio. How long do stock N54 turbos last? Turbochargers on the BMW N54, for the most part, last around I run E55-60 gas 22-24 psi midrange on stockers 17-18 redline (maxed). New Member. andrei2500. Car is currently MHD Stage 2 on 93. Jun 12, 2024 33 13 0. 1; 2; First Datalog New N54 ower seeking log feedback. ): 10 to 11 bar (145 to 160 psi) Above would represent a 'new' motor; if I recall, as motors age and the top of the pistons (and valves) become coated w/carbon buildup the compression pressure tends to Product Description: N54 3. However, it is possible for N55 turbos to last 50,000+ miles at 23psi, for example. I decided, in the name of asking for less PSI, to get the rather restrictive N54 head to breathe better. Problem is achieving and holding 1, 2, 5, 10, 15 psi and checking via logging. We did 481rw stock turbo last year at 21psi. 509WHP + 575TQ – E92 335i. Generally a 150 load is only around 12. 500-550whp is really the safest power for reliability on stock internals. MHD N54 Flasher License €109. Dec 3, 2018 174 73 0 Ride 135i N54 Jun 22, 2019 #12 Fair Stock N54 boost 6 psi ? Thread starter Hill'n'toe; Start date Mar 22, 2018; Forums. In one of the pics you can see the compressor outlet is 42mm and that the wall is 2mm thick. How much timing, how efficient the turbo is, how good the intercooler setup, what is the DA, ambient temperature. I'm one of the relatively few who uses the simple WGDC (RPM x Boost SetPoint Vishnu N54 Fuel System Research Part 2. Appreciate 0 Tweet Let me be the first to officially welcome you to e90post and all things n54/n55 _____ ERnie 2016 BSM/f80/ZCP. 4 psi. All Time Today Last Week Last Month. while logging, limp mode activated & codes 29e2 & 29f2 set. 5 psi, delivering 370 lb-ft for up to seven seconds. Sep 4, 2021 25 3 0. 68 HP800 turbo kit Search in titles only Search in N54 only. However, if you are concerned about N54 turbo longevity, somewhere in the ballpark of 17-18psi on stock inlets/outlets and 19-20psi on upgraded should be safe for most. Dec 1, 2017 115 70 0 Ride 2009 135i Apr 10, 2018 #1 Saw this on IG today lol. Problem is my hpfp which is about 2 years old is sitting around 10 in logs (I think that's 1000 psi) which is alittle low. The N54 on stock internals should be left around no more than 600whp/wtq. F40Model Year: Part 2 Stock LPFP Flow Test Results (52gal/hr) fuel per hour at 43 psi, 11 volts with an 8. Reactions: suspect and wheela. Emps were well above the max recorded value of 58. most tunes will push it to around 12-13 PSI on stock parts. N54 . Small stock turbos, a longer stroke, and somewhat high compression allow for tremendous low-end torque. Engine. 55. How much PSI can the N63tu stock turbos run? He’s also the proud owner of a 600whp N54 with upgraded twin turbos and an E30 325i drift car and has a particular nice im doing 100-200 ~5,8 with 6266 BB and 102 octane pump + meth on 22-23 psi 4th gear only full interior e82 6MT. I have a bucketed 535 with a healthy hpfp and Im usually at 1800 psi under high load and rarely might drop to 1500 rail pressure on e60. Stage 1+ up to 390HP / 600NM. Page of 1. I'll be first to tell you my n54 scared the hell out of me after I jump from stock to MhD most aggressive tune. ) My motor pulls -20 hg/mm vacuum at idle fully warm, and the 11psi spring was too stiff to allow the BOV to open On the N54 stock boost is 8psi while stage 1 is 13. Let’s have a look at the world records. 2 psi of boost on stock n55?? So after setting my used jb4 back to default values, updating the firmware, and changing menu 10,11, and 12 back to default my 2012 335i runs a lot better now! No more going into Limp Mode after going WOT. You need to log a proper pull. But still, it's a good idea to exercise restraint when running high midrange boost/torque pressures. 847WHP + 726TQ – Vargas Twin-Turbo N54 on 25. Reactions: marc and Panzerfaust. N54 Thursday at 8:27 AM. Max was about 6. My RB TWO's are making right at 500hp on 93. All components need upgrading at a certain point and limiting factor as mentioned above is in relation to what the Consider that too much low end torque (something of an N54 strength) is a problem on an unbuilt motor (rods) and also precipitates the need for decent investment in tyres/chassis mods. I am currently in the process of rebuilding the N54 out of my 2008 335i. Email. After 10psi it What's everyone's psi readout when just idling either on stock pump or upgraded? Mine has consistently been 72psi until I switched to 93 octane for half a tank since e85 was not available at the moment. - Added 3 adaption resets: Intake Mass Flow, Load Control, Fuel High Pressure System. 25k. The stock N54 head is a constraint, and it is relative to the amount of pressure/flow being put against it. Appreciate 0 Quote 07-29-2017, 10:47 PM #5: RSL 12-13 keep in mind ECU does not target boost PSI which is why there is no set value for stock boost _____ Check out our current sale by clicking on this link! Bigger turbo(s) flow more air. -Fuel: My assumption is that the fuel system would need to be upgraded to achieve 600+ hp levels. stage 1 or 2, then you should run a 7+” FMIC. Still don't see the 30 psi target hitting 700whp peak given the gains the last 2 psi made. Sticking with the trend – turbo longevity is not an exact science either. 5 Race FMIC-Charge Pipe-DCI-Inlets/ TurboSmart Plumb Back DV / XHP / E50 Custom Tune by WedgePerformance / APEX ARC8 / My “new” car, 07’ 335 coupe, presently has 135k miles, running GC turbos @20 psi, similar tune but with full e85. N20 Turbo Longevity at 20+PSI. tlinford New Member. For reference, I believe RWD E9X N54 HPFP and LPFP - what to look for in your logs. Shop by Engine 335i or 535i it is important to consider the differences between the N54 and N55-powered BMWs. F40Model Year: 2019 + Previous Generations; F20 / F21Model Boost was only raised to 10. 38psi is not intended for the stock twins. pbondar; Jun 3, 2023; N54; Replies 2 Views 2K Vargas Stage 2+ N54 turbo review. F40Model Year: On pump gas the purse and especially high flows are yawning at 18 psi, gotta do meth or E85 to even get them to make average boost. probably won't be doing any significant mods in the near future so curious about power gains and drivability on stock applications. The stock boost numbers of the M2 N55 should give you a sense of where BMW sees the long-term boost reliability threshold of the EWG N55. Definitely plenty of room in the mid-range. While logging Mine likes to hang around 82 psi under no load and low load, but occasionally it's around 72 psi in the same conditions. Advanced search. By using a custom voltage OEM turbos can handle up to 18 psi with supporting mods, going over that is probably not going in increase any performance. Members Online. 1mm/89. ECU_PSI is boost pressure (psi) as observed by the ECU. Same goes for any psi set in a tune. 5psi, you could run stage 1+ which targets 16. x psi as that must be the highest voltage that in the reference table. Car couldn't Coming from the TT N54 platform, the stock turbos were pretty much garbage. Oct 17, 2017 255 190 0 Stock 35is N54 vs MHD V10 stage 2+ vs TTE500 turbos. I'm fine-tuning the base map of bms and I would like to know which is the optimal AFR for our engines with direct injection. J. SlowE93. There are a few turbo models that have emerged as go-to upgrades for the N54 platform: BorgWarner EFR 6258 or 7163 Drove today, JB4: Map 1 - For stock motors - 13 psi boost Map 5 - Autotuning mode for stock & up motors, 11 - 16 psi boost - Alpha code Autotuning yielded significantly smoother throttle from stop and smoother shifts than Map 1. 2:1 and 13,5 psi boost ( as we have with the PROcede, AA Xede, ) or 9. This is for longevity. Ethanol maps will mainly have different fuel scalars as keeping stocking scalars will run lean. 2 psi based on the 3. In your case, your hpfp values are 2 on the jb4, which is 300 psi, and normal idle is supposed to be 700 psi or so (4-5 on the jb4, which is what you had at the start of the log). - Added a "generate updated BIN" function in Stock map operations to export the proper and updated OEM map. I would agree with the tuner that you need to upgrade by adding port or add The BMW N54 engine was manufactured from 2006 – 2016, it is a 3. Getting ready to start the tuning process in the next few months. So a 21. First of of all, I've noticed that the boost pressure is low - around 0. Skip to content. Last car was 540i E34 with N54. 00 $745. WOT pulls through multiple gears cause IAT’s to jump 60-100°F Running the 7" FMIC on a stock turbo N54, you will see close to ambient temperatures, and only approximately 1-2psi of pressure drop. I would also assume these are running maxed out Our N54’s ran 16-19 psi on stock charge pipes and diverter valves for years without issue. Basically a stock N54 runs its turbos at ~8 psi & dynos @ 270 WHP/280 WTQ. N54 map5/93oct log stock turbos 09-02-2023, 08:46 PM. and 15+psi of boost should use the 7+” FMIC. With that being said, boost pressure is a better metric. The engine spun a rod bearing, and the cylinder bores were too worn to be reused with standard-sized pistons. From my understanding the n55 can handle 550? Also any features i should look for? I know LSD is a big one so i’m wondering what years it came factory with. Advanced Search; Forums; Today's Posts; Member List; Calendar; I'm driving a stock z4 with the n54 engine. shop@precision-sport. 45 bar or 6. My next fueling mods: sanity check? whyzee125; How much boost can stock N54 turbos handle? N54 Stock Turbos Max Boost Summary Likewise, newer OEM turbos may decide to give out before 20psi. Based BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > N54 Stutter no codes stock tune Google Search Thus, as tuned for duty in the 335is, the N54 rustles up 320 horsepower (+20) and 332 pound-feet of torque (+32) riding atop stiffer engine mounts, with the added party trick of an overboost mode that maxes out at 14. While inlets won’t hurt any stock turbo N54 they generally provide the biggest gains at 15+psi, and especially at 20+psi. 8/6. Omar@VaderSolutions Lieutenant. It's an area where the N54 shines, making it a lethal engine in roll races. 8 PSI. I'll be installing the white, 8 psi spring today since my car only pulls just over 8 psi of vacuum. Wastegate Duty Cycle Even stock vehicles produce sufficient airflow to push these sensors BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Compression Test numbers Thread Tools Stock '07 E92 335i 6MT- HP650, inlets/outlets, ER FMIC, VRSF CP, LPFP stg2, CSF rad, 'is Aux rad, ER OC, Ohlins, M control arms, eibach The stock airbox flows perfectly fine even on maxed out stock turbos, intake is mostly for sound. gmagnus7 Corporal. Stock N54 I will pick boost over timing especially on E85. You can see I hit close to 22 psi and 160 load - scaled bin for N20 TMAP. The N54 began With my EWG, I could make 42-44psi on stock turbos. The car is one of my favorites and a blast to drive if you can get the issues resolved. How much PSI can the N63tu stock turbos run? BMW N63tu max boost on stock turbos. Reactions: 335i_lou. When actual boost is off of boost target in the middle RPM range by more than 1 to 2 PSI it is indicative of a boost leak (check vacuum lines, IC couplers, CP, vacuum solenoids, boost solenoids etc. Basically the map will read stock up to 10psi. 135iTX Corporal. Leaving the head unported going for this kind of power honestly makes We have been quiet, as you know war in 🇺🇦and we have our main office there. Lack of turbo lag from stops very noticable - thanks Terry! N54 owners who are running FBO with a tune such as the JB4, Cobb, etc. It varies a lot due to a faulty wastegate design and some owners pushing these to double the stock PSI. now i got 7 psi under 2000rpm It uses compressed air, and you run the turbos in the stock housings. Dyno'd at 320rwhp. With lots of light being shed on modern N54 v3 and v4 17t's & 19t's I have decided it would be smarter to stick with reputable brands, mainly due to the Research & Development of the Turbo kit and Brands being able to show my car is completely stock n54 and finally decided to look at some tune solutions and MHD has sparked my interest with its affordability. Post Cancel. Oct 19, 2016 535 409 25 NY & AZ vadersolution. Appreciate 0 A simple slight overboost can change a 23 psi tune into actual 24 psi for a brief moment and dyno will read higher of course. 00. andrei2500; Thursday at 8:15 AM; N54; Replies 5 Views 105. Those looking to run 3. Theoretically, having high PSI tuned past the middle of the RPM would be more stressful over time than if there were to be more RPM 26 vs 28 psi E50 runs on stock n54 block: DAW Hiflow Max are 19Ts right? I assume if reved out to 7200 it would be exactly at 600whp at redline on the 28PSI map. 5 PSI. Schrick low lifts cams to combat low end torque loss. Boost Target (psi) Boost target is a function of load requested. I believe 37-38psi has been proven optimum with the stock turbos. If I go bigger turbos maybe less E85 what is realistic performance gains I could get on stock fuel system? I've got a 1/8 NPT (1/4" ID) Vibrant hose, a run only a few inches long, going directly to a 1/8 NPT barb on my EOS intake manifold. 1. n54 stock rpm/psi mapping. Has been tuned and running well for Hey boys, In the process of building my N54 at the moment, and was wondering what headgasket to go with. Hi everyone, I have gone from a stock 135i (N54) low pressure fuel pump due to low psi (52-42psi) readings at idle and throughout RPM range (rail pressure would drop and cause limp mode), to a walbro 450 and have retained the bucket and Venturi to keep it close to stock as possible and hopefully food my low psi issue. The 95770 ngks are a stock alternative for n55 . Yeah, the N54 motors really love octane. Instead of opening at 105℃, the MSL Thermostat opens at 85℃ which results in an operational oil temperature 20℃ lower than OEM. Hope to get into 4s with E50 mix and 27-28 Psi. Reply reply E92 335is n54 random oil smoke. N54 rods are strong, but they’re not indestructable. Mine went out at about 50K. Anything beyond that to about 850whp should have at a minimum upgraded pistons and rods my goal is to know which is the ideal and safe afr to take the engine to full boost, over 5000 rpm. My plan is to reuse 5 of the stock piston-rod assemblies and purchase an OEM connecting rod used on eBay. For the adventurous crowd, the stock turbo will keep boosting up to about 24-26psi. it's just tuning the base map in I've seen that usually the stock boost pressure peak is 8. did you try 200-250? did that in 4. So far on 94 pump and it's outpowering my old stock turbo e60+meth tune by a longshot and I ran the stockers hard at N54 . oVeRdOsE Private. You'll certainly be in the 11s, presumably low at 20 PSI, stock turbos and 6000+ RPM. Normally I run a 30-40% mix of e85 and the stock fuel pump is happy with it never dipping below 53psi on WOT. e90m / ssii / foxred / nochrome wedssport sa-55m 19x9. F40Model Year: 2019 + Previous Generations; F20 / F21Model Year: The twins (stock and upgraded) are more torquey, but this has so much power on the top end. Learn about N54 fueling mods and stock limitations. Looking at the walbro graph at 12 volts(you can extrapolate where the 11 volt line would be) I'd say it's pretty close in regards to flow and amp Hi everyone I have been doing lots of research to find a set of reliable big power twin turbos that are available for the N54 market in 2023. We’ve witnessed many owners have a wastegate rattle issue, on both stock and higher-powered N54’s. 00AR Motiv closed deck N54 short block (stock heads and cams) [*]Spec 3+ / smfw Boost limit - for 8. com Ride N54 135i & N54 335i Jan 13, 2017 #18 The N54 was one of the first BMW engines to feature direct fuel injection. They just need work. Stage 1 Maps. How much HP can a stock How long do N55 turbos last? N55 Turbo Longevity at 20+ PSI In general, more boost will reduce the lifespan of the N55 stock turbo. Prev. With the AC on it pulls less as I explained, but if it doesn't work out, I'll switch to the black, 6 psi spring. They're definitely not laggy in the grand scheme of things but are nowhere near the level of responsiveness of stock turbos or 17t's - expect around 16 psi N54 Hybrid Turbo Setup - BEF mode seem to be worst than stock 09-28-2023, 06:17 AM. Replies 27 Views 2K. Nov 6, 2016 259 78 75 N las vegas NV. The stock sensor could in fact read a bit more PSI if the DME could read more voltage but not accurately as Martial advises. It’s a pain to keep the boost pressures where I want them and MHD+ promises that the new tables will make tuning a lot easier. My main goal is to achieve 24psi max boost, which means I have an N20 tmap and a scaled bin. 2 seconds 5th gear only 25 psi pump map stock N54 100 200 5. However, we finally opted for upgraded charge pipes and BOV’s on our 135i and 335i. 8. cloud9blue Sergeant. 700+ seems to mainly be single turbos 6266/6466 or the like in lb/min with around 28+ psi on 100% E85. 7 psi wastegate springs seems to be about 33psi at redline with a 3 port MAC. Ive seen logs where people just generally have a weak hpfp and it crashed down to 600-700 sometimes, and ive seen logs Tried running 8 psi of boost (close to stock) but using a manual controller. On a FBO (Tune, Intake, FMIC, DPs, upgraded CP + DVs or BOVs to withstand increased boost) N54, the turbos are good for 18 psi & 370 WHP/410 WTQ. Last edited by CantSitStill; 01-30-2016 at 04:44 PM. Hey all, this was a passing thought I just had, but whats the highest WHP and WTQ you have seen on stock turbos, and 93 octane only!? I heard of a guy with a Z4 35i who had 2" inlets and FBO hit 424WHP / 503WTQ !!! Dyno Results - My Single Turbo N54 made 749WHP! Bimmerpost ☰ Model Selection. Immediate limp mode again. E81 / E82 / E87 / E88Model If the engine is enhanced via forced induction or nitrous oxide, the stock fuel pump is inadequate. I'm upgrading my stock turbos here in a month or so. so running these at around 16-18ish psi shouldnt result in damaged wastegates or wastegate bushings. The stage 1+ tunes are slightly more aggressive, targeting boost a couple of PSI higher than stage 1. Jake@MHD All else equal, the more power you throw at the N54 the greater risk you accept. WHP Level supported (with proper fuel, upgrades, and tuning) Stock-850WHP VTT is proud to announce an All-new VTT GC redesign for 2021! The latest in our line of N54 VTT “GC” turbochargers. That is motor & head alone. And when car made only 5 psi dropping to 2 psi never sparked a code. proper outlets is a must running beyond 15 psi, especially on bigger twins , and one more thing to note, try to free up exhaust A JB4 on map 1 and 2 will target peak boost of 20 and 21psi, respectively. You’ll likely hear the rattling sound upon throttle lift-off, which If memory serves, the N54 (the first generation twin-turbo E9x 335i engine) is a twin turbo that managed to keep the two banks separate all the way through the cat. have made upwards of 800+ hp on STOCK INTERNALS. On the stock ECU tune, the B58 will produce a maximum boost of approx. E81 / E82 / E87 / E88 I've had these turbos installed since 8/22 starting at just 16 psi on 93 not fast but safe. kaiv; Jul 28, 2024; N54; Replies 3 Views 499. aggressive tuning using the stock boost control system can achieve 18+ psi midrange tapering to 16psi at redline. 5 psi. Add to Basket. 5 Bar TMAP Sensor Enhance the performance of your N54 engine with the advanced 3. Go. 94@164. the N54 stock turbo’s can break this 500whp barrier. This thread is for the head work. Part 3: The 2 Fastest Stock-Turbo N54’s. not sure if this is normal or what any insight is much appreciated! Idle pressure is around 700 psi. i still havent worked out how i can estimate the target boost psi through the wgdc (base) table and how it works with wgdc adder . Search. I think for drifting, you might want to stick with a twin turbo setup though -Turbos: it seems the highest boost the TT n54 stock turbos can achieve safely is under 20 psi. 500whp on stock turbos is pushing N55 stock+PPK boost @ 12+ PSI. They look even better in person and much bigger than stock which I saw the other day at the dealership. Appreciate 0 12-03-2010, 05:40 AM Pure stage 2 DD N54 - now High Flow. My understanding (possibly incorrect) is that max load is 220. At that point, the turbo was way past its efficiency range, would not last very long (who cares right ?) and we were running in the high 13's AFR (not recommanded). Help diagnosing rough idle(no rpm bounce), and misfire on cylinder 6 on wot. Stock N54 Rods, Bearings, Pistons (600-700whp) These are the first parts to give out on the N54. Computer just thinks I`m overboosting. Haven't had a hub slip on 4 stock motors, but its worth assurance when building a I have an N54 335i, with OEM turbos replaced ~10 months ago with ARM relocated inlets, ARM Chargepipe/Tial BOV, VRSF outlets, replaced vacuum lines and a lot of maintenance done. This is not the actual boost pressure, but rather the JB4 alters ecu_psi to control the throttle blade. 5psi. Extreme PSI:: Forced Induction:: Developed specifically for BMW’s all-new N54 twin turbo motor, as found in the BMW 135,335 and 535 models, Forge Motorsport adds another replacement valve application to our already extensive vehicle specific and universal valve lineup 20 psi is nothing to worry about on stock turbos. Cheers Eugen, if you cannot get 93 or 94 octane gas, then a lower compression ratio is better if you want to expand on the stock boost PSI. SOLVED - Strange rail pressure bahavior after first WOTs. We also know that M2 N55s can suffer from bad heat soak when driven hard and power number suffer badly under these conditions. Hours. To support direct injection, the N54 engine features a high-pressure fuel system capable of delivering fuel at pressures of up to 2900 psi (200 bar for the non Americans). N54 having LPFP spikes over 110psi! 2007 335i e92 Fuel-it stage 3 LPFP 550 cc PI AIC2 Motiv- FF sensor Running e85 In the process of tuning my car, noticed the LPFP pressure was all over the place, dropping below 40 and spikes over 100psi, so I Fuel-it 15 PSI HOBB'S SWITCH. Reply reply I know n55 is 9psi. Reactions: Chris@VargasTurboTech. Yeah 18psi on a Stock turbo is not comparable to 18psi on RB 1/ Results were 340 whp and 400wtq on a stock turbo, while the same car without these modification was doing 300whp 320wtq at 20 psi falling to 14-15 psi at redline. How much boost can the N55 stock turbo handle? What is the PSI limit for N55 stock turbo? BMW S55 stock turbo boost psi. This tuning guide is broken into the basic components of tuning the BMW N54 and the tables associated with each of these components. Before the first performance part ever got installed, the car got a completely new cooling system, belt, pulleys, mounts, hoses, injectors, gaskets, etc. 5bar map sensor and voltage scaling. Each with 4 octane Variants (US OCT ACN91, 91, 93, 95 / RON 93, 95, 98, 102) using a peak of 15 to 17 PSI tapering to 10-12 PSI at redline. You can get by on the stock FMIC, but the tune will pull timing as IATs get too high. Let's not forget that these are small turbos (specifically made by Mitsubishi for BMW's N54 engine) as compared with the much larger The stock turbos are under-boosted in stock form, running just 8 PSI, with the ability to run up to 15 PSI reliably, and some even pushing them to 22 PSI long-term. Real Thermostat Equipped with a real thermostat, not an ECU_PSI. So is my 6 psi dropping to 3 psi normal, any more boost computer throws a code. Always on 94 octane. Second, b/c ppl have seen spikes >18psi, I assume that it's possible although sustained boost that high would probably kill them. See if you can find out if the serpentine belt was recently replaced. N54 Jul 29, 2024. Potential power from N54 with stock boost? Bimmerpost ☰ Model Selection. The internals of the N54 can handle MHD Stage 2+ n54 psi question . On the The N54 coming equipped with a forged crank and rods (yea, yea this is up for debate acc. N54 Tuning Power Combo - N54 JB4 G5 ISO + DownPipes $838. 5. I know the n54 can handle 700hp so does it still make sense to go with a n54 or an n55. Kenjermen Sergeant. 1; 2; 3 Go to page. 33, stock 18-PSI & 93 Pump Gas! Next up is the prometh kit and 600whp stay tuned guys. We tested N54 stage 2's like 4 years back we say almost 230K using stock inlets, which was spinning the snot out of them. The stock pressure is 8. Then the safest way to go stage 2+ is to step up to it. Realistically though stock turbo maps more than 450whp don't perform well at the track. First off, I believe the max psi on a stock 335i is 8. I’m guessing most readers here will fall into the category of a 7+” FMIC. As a result, some cars have parts others don't. May 2, 2022 6 1 0. So I don't know the reason, but it behaves the same as stock, so I'm not concerned. 5psi max boost target. However, as with most BMW engines, the B58 is significantly underrated from The N54 engine is known for its potential to make impressive power with relatively simple modifications. 9. The only site with what I would consider a legit list of real 800 dynojet whp n54 they are all built motor. ktb_e92. Not to cross Apples and Oranges but im hoping its a bit more than 15 psi for a stock motor, as most 4 cyl motors I have modded can handle easy 20 psi stock otherwise. If you buy one now, you should factor in a possible replacement. 8psi is the max boost for totally stock n54 135i. Appreciate 0 Quote 12-10-2021, 07:09 PM hitting the stock turbos with 20+psi boost is probably going to kill them sooner than later, so you will be in the market for some bigger turbos soon anyways. i know all the merits about JB4, Cobb, and custom tuning. If you have upgraded turbos, but the turbos are the same size as the stock turbos, ie. Anything beyond that to about 850whp should have at a minimum upgraded pistons and rods and better bearings. As a result, many N54 owners choose to - TIal MVR waste gate with 10 psi spring - N20 Tmap - Motiv BoostBox & 3 port MAC - BMP Port Injection Kit (750cc) - AIC6 - DIY dual walbro 450s - Xclutch Organic Twin Disk (Awesome!!!) Stock N54 6 speed MT Spec Stage3+ Steel fw Vader solutions S3 Pump AD-E PI Jb4 BCP intercooler Vrsf charge pipe Jp works kit Doesn't open back up on idle or under load? 12psi spring might be to stiff for stock boost psi If you have supporting mods and mhd turn it up and test. If the engine’s power is increased more than 15-20% fuel Typical N54 Rail Pressure under WOT. is probably around where your 2nd lpfp activates. I run it hard but I am very good about maintance. I remember when Cobb first came out everyone was bugging out about seeing 16-17 PSI in the mid-range, its perfectly acceptable for this car so as long as its not at redline. We take our already robust stage 2 design utilizing all its ground breaking features, and machine the compressor housing to take the highest flowing wheels in the TD04 family to provide the ultimate in N54 stock frame power 10. or Google stock n54 datalogs which will show the targets. The bore and stroke is 84. xx psi. N54 Oct 29, 2024. CONTACT US. Reason why 24 is the cap is cause the turbo emits higher/ hotter gases which result in the turbo being a heat maker rather then producing more airflow so at over 24 psi the turbo is out of it's efficiency range and creates higher EGT's which result in higher cylinder pressure and cause Stock M2 N55s run ~12 psi and the overboost function can get them around 14 psi. Ive always read that anything below 1000 psi is a weak hpfp. I also understand that the maximum amount of boost is 37. Most blown N54 motors begin with the pistons, rods, or rod bearings. Turn it up and enjoy 2007 E92 335i / VRSF 7. 5-5. FBO+ inlets. The car runs nice, although kind of slow, I was expecting a bit more from it. Tuned by @rfp_tuning using BM3 @protuningfreaks 28 psi E30 Built motor Turbo by @turbodok Owner @_dima_shevyakin_ #mhd #n54 #n54singleturbo #n54racing #n54racing #n54gang #n54nation #n54addicts #n54fam #n54magazine The TiAL Q is one of the preferred BOVs for the N54 engine, it is reliable, strong, and looks good. Currently I've acquired Manley turbo tuff rods, JE 9. We are proud to introduce the latest in our line of N54 turbocharger products the VTT Stage 2+ hybrid turbochargers. Best N54 fueling mods. The older Walbro never did this. E81 / E82 / E87 / E88Model How many PSI of boost can a FBO N54 handle on a daily driver basis? Boost is relative to the turbocharger used. $55. Leaks happen far more often than failure. marvix; We believe stock turbos will max somewhere in the range of 410-425whp with FBO on 93 pump gas. The LPFP pressure seems to jump up and down a lot but the AFR's and What limits power on N54 with stock turbos? suspect; Oct 18, 2024; N54; 2. In essence, N54 inlets and outlets aid in the reduction of waste-gate duty cycles. Boost limit - for 8. com. The power gains completely transform the driving experience. The rods are forged, however pistons are not. The N54 can handle around 600-650whp and 550-600wtq on the stock block and internals. Posts; Latest Activity; Photos . But we are back!!! Check this big turbo N20 out. It's so much better in so many ways. I would likewise keep in mind that the claimed stock turbo world record is 523whp, however this was achieved on a 27 PSI Stock Turbos. How many PSI of boost can a FBO N54 handle on a daily driver basis? Boost is relative to the turbocharger used. 25+psi (pump to E50 with meth) N55 plugs are 1 step colder than n54 stock for stock. The boost N54 Single Turbo - Borgwarner EFR9180 / 18-20psi - Low Boost Daily Map / Stock Engine / 93 RON without meth injection / Manual 6 speed However, if you are concerned about N54 turbo longevity, somewhere in the ballpark of 17-18psi on stock inlets/outlets and 19-20psi on upgraded should be safe for most. I believe most fuel maps ramp up to 15-17 magapascals which is over 2k psi. It is all a matter of relativity. VRSF but still using stock blow off valves. Hello, Here is a brief description of my config Hybrid Turbos TTE500 (change because the old one was an issue with wastegate Flappers) Boosting is fine at 17 psi. Stock N54 turbos with stock inlets and outlets should max out around the 20-22 psi mark and around 23-25 psi with upgraded inlets and outlets. parisguapis. Beyond that you start looking into closed decks and etc. If they break parts of the belt can wind around the crank and actually wind up in the oil pan and cause issues. My 2007 335i has been making . This is with a gallon of E85 added to about 3/4 tank 91 AKI. What is the max PSI these twins can handle? 4. which is the optimum AFR for n54 motor at 20 psi 06-20-2019, 10:21 AM. Fortunately the price has come down a lot and more companies are selling re-manufactured or upgraded turbos for our cars. 5bar map sensors just so they can run 22+psi of boost at peak torque might want to think twice N54 What is the stock psi? Is the boost psi electronically controlled in the N54? Thanks - just trying to get educated before I take delivery of my 1m in a couple of months! Appreciate 0 Tweet. but I think with it can run 91oct . So, yes, less than 6 psi stock. Damn 38 psi on a 6870 for only 900 whp. com sales@precision-sport. How much hp can stock N54 turbos handle? The N54 on stock internals should be left around no more than 600whp/wtq. Stage 1. You can achieve the same CFM at a lower PSI vs stock turbos. Jun 19, 2019 #12 The head while bad stock is ok when ported. The spring that is recommended by Tial for the N54 is way too stiff (at least it is for my engine. However, a BOV will hold higher levels of boost than the stock diverter valves will, since the diverter valves begin to Keep your BMW N54 engine safe and cool with the Mosselman Oil Thermostat N54. 5 psi target above 5500 rpm. Due to the additional boost, it is recommended to upgrade your FMIC. Car is a beast down low. About; Contact Us; Shipping; Returns & Cancellations; Community; Find Parts. But it doesn't mean it was a true 23 psi run. 7 option, N20 option checked, N20 TMAP. So roughly 10k starting for the motor & head alone and goes up to around 18k. Comment. dtu dxka rqrf wdke chec fvv dkwsw czzuydo nll pyaazol