N54 stock psi Members Online • 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. Includes open, high, low, close and volume. Thread starter hdzpablo03; Start date Oct 8, 2023; Forums. We’ve witnessed many owners have a wastegate rattle issue, on both stock and higher-powered N54’s. 8-11psi, which is slightly up from the 7-10psi found in the N54 and N55. Oct 19, 2016 535 409 25 NY & AZ vadersolution. 500-550whp is really the safest power for reliability on stock internals. Specification; Product Code: FUEY2S0F53: Manufacturer: Fuel-it: Stock Level: 6: Condition: New: Product Information; Customer Reviews; Earn Reward Points: 55. 5. They also make the turbo's work simpler by increasing air-flow volume at lower PSI. Seeing as I plan down the road "Next Summer" to upgrade the internals can i get away with stock HG and Studs for now? SLOWESTN54 Captain. 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. track usage and cooling issues. How much PSI can the N63tu stock turbos run? BMW N63tu max boost on stock turbos. Rep. Reactions: suspect and wheela. Another possibly relevant issue in MHD's decision to lower boost target is the specified range of the stock TMAP sensor, nominally 21 psi. 5" FMIC 30C ambient temps, 80% humidity 1530kg Learn about the BMW N63tu stock turbo limits. 50. I'll probably change the set up in a few months (inlets, e85 gas station being built near me, etc) so I dont know If Ill bother to dyno, but im still really curious what's the best Stock turbo, 93 octane numbers Keep your BMW N54 engine safe and cool with the Mosselman Oil Thermostat N54. But it doesn't mean it was a true 23 psi run. The boost target is also low. ** EDIT 2 ** I am nervous on your behalf if you are modifying your own tune and not exceedingly familiar with these aspects. JB4 with the n54 guys use it and "tick" an option to rescale the voltage calibration for the higher boost levels with n54/n55. ” There’s still risk. It’s not as simple as saying, “the N54 will go for decades at 600whp, but it will blow up immediately at 651whp. Still don't see the 30 psi target hitting 700whp peak given the gains the last 2 psi made. So I noticed something after logging on Map 0 boost2 hitting peaks of 20. F40Model Year: 2019 + Previous Generations; F20 / F21Model Year: cool to see stock internals!! Appreciate 1 Jaronbwall 295. Apr 10, 2018 #2 Might I also guess the N54 stock sensor has a limit of 21. Same goes for any psi set in a tune. 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. 14, if your target is 15), after that spool slows down to land a bit more softly on target Boost Mean (psi) What I am not able to grasp is what load corresponds with what boost, at least not when I look at my logs For example, a recent log has actual load of 172. Cheezy Lieutenant. We have the remaining pieces showing up to make the stainless steel outlets (thread here) for the Hydra Performance HP650's. 25k. N54 Tuning Power Combo - N54 JB4 G5 ISO + DownPipes $838. Jun 12, 2024 33 13 0. We did 123-125mph stock turbo running a 440whp map. We're getting close to 1,000WHP! See what modifications are required to I am in the market to purchase a 335i. F40Model Year: 2019 + Previous Generations; F20 / F21Model Boost was only raised to 10. Quote 07-14-2011, 11:53 AM #2: BrokenVert. That’s right in the ballpark of the safe limits of the stock turbo and engine. Unless you are planning on running 25+ psi i wouldn't Bigger turbo(s) flow more air. 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. -Oil temp: this would be a circumstance based limited factor i. Engine. Comment. 2 PSI, however I just got my car custom tuned and it pulls much much harder, and peaks around 19-20 PSI. 79 Corrected 5. My RB TWO's are making right at 500hp on 93 Yeah 18psi on a Stock turbo is not comparable to 18psi on RB 1/2 or Game Finishers. Reactions: 335i_lou. Eight maps included Stage 1 and Stage 1+ FMIC (US OCT ACN91, 91, 93, 95 / RON 93, 95, 98, 102) using a peak of 16 to 18 PSI tapering to 12-14 PSI at redline. oVeRdOsE Private. HPFP Pressures - N54 . Dyno'd at 320rwhp. stock N54 100 200 5. I'll be installing the white, 8 psi spring today since my car only pulls just over 8 psi of vacuum. An FMIC is one of the best consistency mods and there isn’t much debate about the importance of cooler IAT’s. Has been tuned and running well for 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 decided to replace the following: HPFP ( FCP JB4 Autotuning Mode - N54. Max boost on BMW N55 stock turbo. The gains with inlets and outlets individually are generally greater than when combined. Add to Basket. 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. 00 $745. Reply SojinCS E92 N54 335i N54 turbos. 7psi. Same happens with Without any mechanical changes to the stock boost control system it is possible to achieve boost levels at the edge of the stock turbocharger capacity. If you have upgraded turbos, but the turbos are the same size as the stock turbos, ie. Location: Torquay. or Google stock n54 datalogs which will show the targets. com Ride Interesting recommendations from the shop. 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. Thread starter tlinford; Start date May 2, 2022; Forums. *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. Despite its reputation as a strong factory motor, upgrading to a big single turbo or larger TD04 twin turbos comes Go to n54 r/n54. Nov 7, 2016 611 225 0 Toledo Ohio. where the engine is already charging 20 psi. We lay this out straight-forward and dive into a deeper analysis of N54 engine strength and horsepower limits. Upgraded turbos are at the forefront of discussion when it comes to unleashing the N54’s full potential. 296. Hello, Boosting is fine at 17 psi. Before diving into any upgrades let’s discuss the limits of the stock fueling system. N54 Jul 29, 2024. SOLVED - Strange rail pressure bahavior after first WOTs. 4 to be around 20psi instead of closer to 22 psi. Dollar Value of Points: $0. up to 380HP / 560NM. 55. Prev. I would agree with the tuner that you need to Rule of thumb - at 2500/3000RPM, you need ~500rpm on stock turbo’s to reach your target minus 1-2 psi (i. 4:1 and 16 psi boost ( as Alpina does ) BTW, Alpina is keeping the stock turbos, AFAIK. If offers the best balance between cooling performance and pressure drop on stock turbo N54 cars. check the mhd threads for n54. Stock N54 I will pick boost over timing especially on E85. 00. ECU_PSI is boost pressure (psi) as observed by the ECU. My advice is to flash back to stock until you get sorted. Last edited by CantSitStill; 01-30-2016 at 04:44 PM. The stock sensor could in fact read a bit more PSI if the DME could read more voltage but not accurately as Martial advises. 5 PSI. 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. Stage 2. $55. However, as with most BMW engines, the B58 is significantly underrated from the factory, and the engine is built to hold significantly more power and more boost than you’ll find on the stock tune. We believe stock turbos will max somewhere in the range of 410-425whp with FBO on 93 pump gas. I plan to make 450-500whp. I believe 37-38psi There is a few threads on setting this up. Ethanol maps will mainly have different fuel scalars as keeping stocking scalars will run lean. While logging often to make sure everything is running properly. 7mm. Drives ST N54 Low rail pressure. My main goal is to achieve 24psi max boost, which means I have an N20 tmap and a scaled bin. I dynoed 380/421 on an MHD OTS stage 2+ map at 18. That tq curve falls off a cliff past 5. not sure if this is normal or what any insight is much appreciated! I am swapping on an N52 head to my N54. Join Date: Jul 2016. I know n55 is 9psi. Also, to get 35 psi at the intake, pre After reading through multiple pages and threads to figure this out, I was curious to know if this occurs with anyone else. 94@164. 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. Appreciate 0 Quote Emps were well above the max recorded value of 58. 5 psi run can actually be 22+ or whatever just like a 23 psi run can underboost and not reach max power. I hope that helps. r/n54. 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. 18-PSI & 93 Pump Gas! Yeah, the N54 motors really love octane. kaiv; Jul 28, 2024; N54; Replies 3 Views 499. 500whp on stock turbos is pushing 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. Doing an ST build using 8474 1. How much boost can the N55 stock turbo He’s also the proud owner of a 600whp N54 with upgraded twin turbos and an E30 325i drift car and has a particular affinity for the S58 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. Running the 7" FMIC on a stock The stock N54 turbochargers are small and prone to failure when pushed beyond their limits. It's not rocket science. I decided, in the name of asking for less PSI, to get the rather restrictive N54 head to breathe better. Stock. In essence, N54 inlets and outlets aid in the reduction of waste-gate duty cycles. New Member. Appreciate 0 12-03-2010 Healthy engines should have compression over 100 psi per and low drag to be a modest upgrade over the stock BMW pistons. Definitely plenty of room in the mid-range. Posts. Boy were we disappointed we didn’t do it sooner. . N54 . Upgrading the turbos can increase horsepower and torque significantly, but it How many pounds of boost can an N54 engine take? How many PSI of boost can a FBO N54 handle on a daily driver basis? Boost is relative to the turbocharger used. I had to dial back the boost on the stage 3 PROcede maps, too much torque for the stock clutch on my car. ktb_e92. These files are here for informative purposes and using anything found here is meant to be used at your own risk Get a complete stock price history for PSI (Invesco Semiconductors ETF), starting from its first trading day. More boost means more heat which means less dense air. I’m looking at transferring my new, WIP, stock turbo FlexFuel bin to MHD+. 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. The other strange thing, is that I'm getting timing corrections under WOT at low RPMs on 3rd gear. 3rd 4th gear is around 5. Beyond that you start looking into closed decks and etc. 2:1 and 13,5 psi boost ( as we have with the PROcede, AA Xede, ) or 9. This affects a lot of load based tables as load points will be much lower for boost levels than with the stock map sensor. 06 AR. 1; 2; First Datalog New N54 ower seeking log feedback. Join Date: Aug 2023; Posts: 12; Share In the photo we see that pin 1 of the stock is yellow, Fuel-it 15 PSI HOBB'S SWITCH. Premium Vendor. Thread starter 135iTX; Start date Apr 10, 2018; Forums. Generally speaking, depending on fuel and timing, stock twins are happy up to ~18-20psi. Prinx Chengshan anuncia recall de mais de meio milhão de pneus nos Estados Unidos; Speedmax lança a linha de pneus RangeMax com 8 anos de garantia no mercado Dyno Results - My Single Turbo N54 made 749WHP! Bimmerpost ☰ Model Selection. The stock N54 intercooler typically results in IAT temperatures 20 Stock N54 boost 6 psi ? Thread starter Hill'n'toe; Start date Mar 22, 2018; Forums. Drives: BMW E92 335i N54 MT ST PI FF. 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. Menu Home. As a result, many N54 owners choose to upgrade their turbos to larger, more efficient units. How much hp can stock N54 turbos handle? The above limits on the stock N54 engine are estimates. The internals of the N54 can handle Our N54’s ran 16-19 psi on stock charge pipes and diverter valves for years without issue. The oil will still reach the operating temperature at the same time as a stock thermostat. 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. Car is currently MHD Stage 2 on 93. How much PSI can the N63tu He’s also the proud owner of a 600whp N54 with upgraded twin turbos and an E30 325i drift car and has a particular affinity for They are running 23psi+ in the midrange, an overly aggressive timing curve, and testing in 5th gear with cold weather. This will be a quick overview, and we’ll add to it throughout the post as we discuss each of the mods individually. 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 The N54 on stock internals should be left around no more than 600whp/wtq. Driving cars and riding bikes really fast. Lack of turbo lag from stops very noticable - thanks Terry! 10. Factory BMW pistons are cast aluminum, which is efficiently. There is added OEM turbos can handle up to 18 psi with supporting mods, going over that is probably not going in increase any performance. Omar@VaderSolutions Lieutenant. 6 same boost. With that being said, boost pressure is a better metric. Shit happens Stock turbos max out around 15 PSI. However, don’t anticipate picking up 50+whp unless you’re pushing 20+psi and holding a lot of boost on the top-end. 306HP-340HP. Instead of opening at 105℃, the MSL Thermostat opens at 85℃ which results in an operational oil temperature 20℃ lower than OEM. 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). 5psi, not up to 11psi. Appreciate 0 Quote 07-29-2017, 10:47 PM 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! https: //x-ph 27 PSI Stock Turbos. bootmod3 showed it in a log all by itself. 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). In 50 to 70 degree temps and at 1100' elevation, my stock M235 sees ~9-10 psi in a 3rd gear pull. Then the safest way to go stage 2+ is to step up to it. Any increased boost pressure with primary cats is eventually going to cause more wear due to the back pressure. N54 The 535 on e40 prolly tops out at 575 WHP while the stock HPFP may be lucky to see 475WHP. I've hit 27 psi peak but it wasn't something I was tuning for (was having boost control issues at the time). After 10psi it reports half the amount of boost to be able to run over 22psi. The power gains completely transform the driving experience. 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 I've got a few things cooking as we head toward disassembly of the Z4 for the next round of updates. We did 481rw stock turbo last year at 21psi. Resident . and 15+psi of boost should use the 7+” FMIC. 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. 45 bar or 6. Appreciate 0 but I thought the oem N54 sensor was a 2. 8. So a 21. Basically the map will read stock up to 10psi. You can achieve the same CFM at a lower PSI vs stock turbos. In 80+ degree temps, I would routinely see 10-11 psi. 5 et24 square / kwv3 / 15mm rear spacer full challenge exhaust WHEELS FOR SALE . Max boost pressure on stock turbo. So I don't know the reason, but it behaves the same as stock, so I'm not concerned. The MPPK EWG is around 10 psi. N54 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 just over 3,000rpm on e85 with an ST setup like the one I've described. The MPPK tuned N55s like the one found in the M235 typically has +2 psi. Meaning I've recorded up to 14 psi, but that's not realistic. 1. xx psi. It’s more or less correct. 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. In summer temps of 80 and higher and with high humidity, I'll see 10 to 12 psi. 1 psi - 5038 RPM = 24. Reply reply Positive-Praline-310 An N54 running stock boost would likely only pick up a few horsepower. For the adventurous crowd, the stock turbo will keep boosting up to 25+psi (pump to E50 with meth) N55 plugs are 1 step colder than n54 stock for stock. N54 engine issues, specifications, dependability, tuning, modifications, On an otherwise stock engine, a simple tune like the N54 JB4 may provide 70-80whp. I’m guessing most readers here will fall into the category of a 7+” FMIC. 135iTX Corporal. 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. We are proud to introduce the latest in our line of N54 turbocharger products the VTT Stage 2+ hybrid turbochargers. N54 owners who are running FBO with a tune such as the JB4, Cobb, etc. Hi All, I've got a 6-speed N54 535xi wagon and have recently added a stage 1+ tune. it's just tuning the base map in I've seen that usually the stock boost pressure peak is 8. I run E55-60 gas 22-24 psi midrange on stockers 17-18 redline (maxed). 68 HP800 turbo kit running 24 psi on 93oct + (150cc/min x6) PI meth 7. Then again I ran 30+ psi on twins for nearly 5 years and never had that problem, I had plenty of other problems but not that problem. New posts Maximum PSI is the only one that makes a true keyed solution Haven't had a hub slip on 4 stock motors, but its worth assurance when building a proper one. The bore and stroke is 84. I would have expected 22psi to be 178 load. There is definitely a difference between requirements and recommendations. 1,024. Overall, upgrading the N54 turbos turns your fun daily driver into a serious performance machine. stage 1 or 2, then you should run a 7+” FMIC. We take our already robust stage 2 design utilizing all its ground breaking features, and machine the compressor housing I'm not an expert on the n54 motor by any means, but I will attempt to tackle that question. If I was rebuilding a stock engine I'd use slightly looser ring gaps then what the factory recommends since many problems have come from ring land failures in pistons 4/5, those get the spiciest. This is for longevity. FBO+ inlets. Popular N54 Turbo MHD Stage 2+ n54 psi question . Forums. It's an old log so it's not in the cloud anymore. 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. How much boost can the N55 stock turbo handle? What is the PSI limit for N55 stock turbo? BMW S55 stock turbo boost psi. I know the n54 can handle 700hp so does it still make sense to go with a n54 or an n55. However, we finally opted for upgraded charge pipes and BOV’s on our 135i and 335i. 4, and boost was 21. 0 psi - 6092 RPM = 27. 33, stock ECU, first in the 9's, first in the 8's 16 M3 - Maximum PSI full bolt ons Mine likes to hang around 82 psi under no load and low load, but occasionally it's around 72 psi in the same conditions. The N54 also incorporates BMW’s VANOS system for both the intake and exhaust camshafts. Stock Internals, I plan down the road to upgrade internals. Stage Like most stock cars, the N54's rev limiter is set very conservatively. F40Model Year: 2019 + 08' n54 135i FBO E85 - SOLD. Sure, you can throw 17 psi at the N54 stock turbos without any other modifications. Based on my math, I would have expected a load of 172. Register. x psi as that must be the highest voltage that in the reference table. I could occasionally see a 12 psi spike on hard shifts. 1mm/89. The World's Top 7 Fastest N54s! Check out the 135i and 335i BMW N54 single-turbo, enhanced twin-turbo, and stock turbo World Records. N54 is pretty reliable besides a 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. Stage 1 Maps. -Turbos: it seems the highest boost A JB4 on map 1 and 2 will target peak boost of 20 and 21psi, respectively. Dec 1, 2017 115 70 0 Ride 2009 135i Apr 10, 2018 #1 Saw this on IG today lol. If I go bigger turbos maybe less E85 what is realistic performance gains I could get on stock fuel system? - 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 Exhaust - @chrisdfv / @cd919 tune - Pump e85 from Sheetz (tested at ~e85) Actual Boost: - 4010 RPM = 20. 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's to play with--allowing for a more linear spread of power. Always on 94 octane. At sea level, aggressive tuning using the stock boost control system can achieve 18+ psi midrange tapering to First off, I believe the max psi on a stock 335i is 8. A proper tune and besides that, you should be prepared to change spark plugs and coils if misfires occur. Measurements are likely less accurate at the top of the range and transient excursions above 21 psi will not be detected. Would we recommend that? No. This is not the actual boost pressure, but rather the JB4 alters ecu_psi to control the throttle blade. 5-5. I my goal is to know which is the ideal and safe afr to take the engine to full boost, over 5000 rpm. Hello Spoolers, I figured I would compile a list of useful tools/files/resources for tuning the N54 Please Note! All resources found here do not belong to SpoolStreet or myself. Learn about the BMW N63tu stock turbo limits. e90m / ssii / foxred / nochrome wedssport sa-55m 19x9. Appreciate 0 Quote 11-27-2021, 09:21 On the stock ECU tune, the B58 will produce a maximum boost of approx. You'll certainly be in the 11s, presumably low at 20 PSI, stock turbos and 6000+ RPM. The N54 was one of the first BMW engines to feature direct fuel injection. 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. So, yes, less than 6 psi stock. The 95770 ngks are a stock alternative for n55 . good luck. N54 Hybrid Turbo Setup - BEF mode seem to be worst than stock 09-28-2023, 06:17 AM. Car is a beast down low. Oct 20, 2024 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. Anything beyond that to about 850whp should have at a minimum upgraded pistons and rods and better bearings. Post Cancel. The N54 can handle around 600-650whp and You can achieve the same CFM at a lower PSI vs stock turbos. Last car was 540i E34 with 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. The N54 on stock internals should be left around no more than 600whp/wtq. All else equal, the more power you My guess is that total boost output is somewhere around 8-10 psi, which means each turbo is producing about 4-5 psi. Stock tune is personally the safest i’d run with what you have. Bimmerpost ☰ Model Selection. Realistically though stock turbo maps more than 450whp don't perform well at the track. First of of all, I've noticed that the boost pressure is low - around 0. In my opinion about 35 psi at the intake manifold is optimal for stock turbos. I have a 6MT and hard shifts can spike boost numbers by 1 to 2 psi. A stock tune non-MPPK EWG N55 is setup for around 8 psi in standard conditions. Respectfully, I suggest to detail what your goal is and see what fits it, then possible tweak from there. Standard N55s see around 7-8 psi. Quote 06-08-2018, 07:43 PM #21: Jaronbwall. 38psi is not intended for the stock twins. ECU_PSI. 8psi is the max boost for totally stock n54 135i. parisguapis. Second, Let's not forget that these are small turbos (specifically made by Mitsubishi for BMW's N54 engine) as compared with the much larger turbos found in other cars (like a large single turbo in a Mitsu Evo that can be pushed >23psi). 5 bar sensor As more stock DME tuning solutions become available for the turbo E46 M3 world, If memory serves, the N54 97 M3 - Maximum PSI turbocharged - 8. 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. (note that I’m still on stock turbos but wanted my fueling sorted before upgrading and N54 Stock Fueling Limitations. Feb 9, 2021 1,301 1,033 0 24 I'm driving a stock z4 with the n54 engine. e. Appreciate 0 Potential power from N54 with stock boost? Bimmerpost ☰ Model Selection. How many PSI of boost can a FBO N54 handle on a daily driver basis? Boost is relative to the turbocharger used. Appreciate 0 Tweet Let me be the first to officially welcome you to e90post and all things n54/n55 _____ ERnie 2016 BSM/f80/ZCP. 7 psi If neither of those aspects are an issue for you, then the 7" FMIC is the perfect intercooler for your build. 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. How long do stock N54 turbos last? 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. Anything beyond that to about 850whp should have at a minimum upgraded pistons and rods Nonetheless, there are generally accepted limits for the N54. ebhr ixjsyo uarpc dbkvlbo wlh yzqv buz jkkouw jtj jbjyts