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  • AdminTeam's Avatar
    Today, 06:38 AM
    Hey Nekka: :text-welcomewave:
    0 replies | 4 view(s)
  • NA55's Avatar
    Today, 06:16 AM
    Your LPFP values are solid and shouldn’t be of any concern.. Everything else on the log look alright too so I don’t see any other reason why rail pressure would be so low..
    7 replies | 93 view(s)
  • bradsm87's Avatar
    Today, 06:01 AM
    Yes very low rail pressure is the issue. Where it gets tricky is that low LPFP pressure leads to low HPFP rail pressure too (like when reaching the limit of the stock LPFP, HPFP rail pressure crashes).
    7 replies | 93 view(s)
  • NA55's Avatar
    Today, 05:41 AM
    Rail pressure looks low for those boost levels.. I’m going to say it’s a failing HPFP..
    7 replies | 93 view(s)
  • AdminTeam's Avatar
    Today, 04:36 AM
    Welcome nick2424, take a look around, I think you will like what you see.
    0 replies | 9 view(s)
  • AdminTeam's Avatar
    Today, 02:59 AM
    Welcome to a real enthusiast forum Blackey.
    0 replies | 11 view(s)
  • F87Source's Avatar
    Today, 02:00 AM
    Thanks alot man! I appreciate it! ~F87
    3 replies | 27 view(s)
  • richpike's Avatar
    Today, 01:53 AM
    Welcome - beautiful car! -Rich
    3 replies | 27 view(s)
  • Orb's Avatar
    Today, 01:15 AM
    Orb replied to a thread BMS Replacement PCV in N54
    The crack case gases is not is not positively ventilated out but rather sucked out. The crack case should be at low vacuum at all time. Crank case ventilation is done by pre turbo bank 2 air inlet in all engine load cases except during deceleration. The mechanism is engine vacuum which draws crank case gasses into the air inlet on bank 2. The flapper valve main purpose is to shut during deceleration. Boost has no effect on the PCV system other than creating more crack cases gases. Boost adds pressure to PCV valve seal which creates a tighter seal. If there problem with crack case pressure then check air inlet bank 2 first then bank 1 as failure in either bank will cause reduce intake vacuum which drives the PCV ventilation
    27 replies | 776 view(s)
  • AdminTeam's Avatar
    Today, 01:12 AM
    335xiRyan, we appreciate you taking the time to join.
    0 replies | 20 view(s)
  • AdminTeam's Avatar
    Today, 01:09 AM
    Welcome to a real enthusiast forum SSsedanM6.
    0 replies | 11 view(s)
  • F87Source's Avatar
    Today, 01:06 AM
    Reserved for future updates
    3 replies | 27 view(s)
  • F87Source's Avatar
    Today, 01:05 AM
    Hi everyone! Its about time I introduce myself and the car I've owned for the past year along with starting a build thread that will be continually updated with every new mod put on the car. Ok first about me, nothing really much to say except in just a fellow Canadian so hello everyone!:handgestures-thumb: I'm not new to forums but am new to bimmerboost and I'm glad to be part of a like minded group of individuals. Next on the m2, its a factory order alpine white, 6 speed manual transmission, 2017 model year car and fully loaded minus the sunroof, as that's the only way you can get it here in Canada (single trim with only a choice on color and transmission). The car currently has 4,000km on it and has been a pleasure to drive and in my opinion I feel like the chassis is more responsive and precise compared to the m4. Steering feel is pretty good for an electric rack but it could use separate adjustment from the rest of the driving modes as in sport + it may feel a bit too stiff, and it for some reason feels more precise than an m4? Even though I believe its the same rack, maybe it has something to do with the chassis and not the rack itself, or it could be retuned by bmw. Overall no real complaints I just wish it came with PSS tires as opposed to the conti's. A list of modifications (all aesthetics, as I want to retain the factory warranty for the time being) will be shortly added along with a brief review - stay tuned! Thanks Guys I appreciate the time you took to view this thread!
    3 replies | 27 view(s)
  • parksjm7's Avatar
    Today, 12:16 AM
    parksjm7 replied to a thread BMS Replacement PCV in N54
    N54 Positive Ventilation of its crankcase - PVC; does it not draw vacuum from the intake ports in the head in stock configuration? Bank 2 turbo inlet will have excess crank pressure dumped into it via the flapper valve when in boost. Otherwise the inlets are irrelevant to drawing vacuum for the PCV system unless I'm mistaken.
    27 replies | 776 view(s)
  • bradsm87's Avatar
    Yesterday, 11:42 PM
    Flash only. Fuel-It Stage 2. It's the exact same sympton as when the stock LPFP ran out of flow. LP fuel pressure drops then HP dies hard. That's what makes me think it might just need a bit more LP fuel pressure.
    7 replies | 93 view(s)
  • switlikbob's Avatar
    Yesterday, 11:29 PM
    I just purchased the stage 2 tune. I'm having Rouge Engineering unlock the ECU. I'm really looking forward to this!
    21 replies | 2211 view(s)
  • Orb's Avatar
    Yesterday, 10:29 PM
    Orb replied to a thread BMS Replacement PCV in N54
    The pressure tests you have done so far are not valid as there is no control or any data that can be extrapolated from it. It leaked something is not a test...you need to be scientific in these type of investigation claims instead off the hip. Until there is proof that the OEM valve leaks then people should question this claim. It is good to have a replacement nonetheless if the can perform equally to the OEM valve if not better. The vacuum test on your value should be done at -1 PSI. It far more important test but you need to understand valve/seal design to grasp at what i talking about. You suggest a vacuum test plan but to what end...what are you going to prove. I don't think you know or your lacking understating of the system. I think people are blaming this valve function for many problem but it only symptom of bigger picture. The PVC system is driven by the vacuum at bank 2 inlet pre turbo and to some degree bank 1 air inlet up to where bank 1 and 2 air inlets meet. In most cases, people do not understand the overall function for the PCV as part of the system and believe the valve will leak under boost. Hence, wrong conclusion have been drawn and no root cause of a particular problem.
    27 replies | 776 view(s)
  • AdminTeam's Avatar
    Yesterday, 10:28 PM
    Welcome to a real enthusiast forum GeniusM.
    0 replies | 15 view(s)
  • bradsm87's Avatar
    Yesterday, 10:05 PM
    Have you got any logs that include low pressure fuel pressure?
    7 replies | 93 view(s)
  • AdminTeam's Avatar
    Yesterday, 09:50 PM
    Hey teknic88: :text-welcomewave:
    0 replies | 15 view(s)
  • iminhell1's Avatar
    Yesterday, 09:36 PM
    I'll go with problem on the low side. I'm FBO + inlets and on a single 450. But I also have the upgraded feed line and new filter. I'm pump E50 and I've been running a tune that will hit 29psi most of the Summer, hit or miss is pressure crashed. So long as my IATs where above about 90*f I was good. Any lower and i was making too much power and pressure crashed, flat out out of HPFP capacity. My HPFP is factory stock far as I know and right now I'm sitting at just under 100k on the car. So based on mine, I'd say you need to see about the low side before tackling anything else.
    7 replies | 93 view(s)
  • Payam@BMS's Avatar
    Yesterday, 08:58 PM
    No jb4 right? What is your lpfp setup? Never seen hpfp take a shit that bad unless it was already dying.
    7 replies | 93 view(s)
  • AdminTeam's Avatar
    Yesterday, 08:53 PM
    Welcome to a real enthusiast forum Keekekkekdkdkd.
    0 replies | 14 view(s)
  • AdminTeam's Avatar
    Yesterday, 08:40 PM
    Welcome A7xstupify, take a look around, I think you will like what you see.
    0 replies | 11 view(s)
  • Sticky2's Avatar
    Yesterday, 08:25 PM
    Boo hoo bitch
    2162 replies | 1462168 view(s)
  • Torgus's Avatar
    Yesterday, 08:15 PM
    Warms my heart. I like how fast her liberal Hollywood friends turned on her.
    2162 replies | 1462168 view(s)
  • mike@n54tuning.com's Avatar
    Yesterday, 07:26 PM
    Bump for a Great Deal @ www.n54tuning.com and as always the LOWEST price Guaranteed!! Mike
    3 replies | 92 view(s)
  • bradsm87's Avatar
    Yesterday, 07:17 PM
    https://datazap.me/u/bradsm87/rev50?log=0&data=2-12-20-21&solo=2-20&zoom=231-300 I'm very disappointed to say the least that my rail pressure has fully crashed by 6500 at 17psi. I have some later logs where it even does it at 16psi. I'm only running E25. I've heard of plenty of people running 21+ psi on E40 without TBI or PI. I've only ever heard of HPFPs failing with more noticeable issues such as long cranks and sudden fuel pressure drops. I don't have any such issues. Has anyone heard of HPFPs slowly wearing with the only symptom being a lower flow limit? I haven't. LP fuel pressure on most of my logs is around 60psi at high RPM and load. If I go down the path of replacing the fuel filter in the hope to get the LP pressure higher, is that likely to help? I think of course it would but I hear time an time again that it's fine as long as it's over 50psi. I'm at a point in my life where I truly, truly hate working on my cars. Nothing would be more frustrating to me than replacing things and finding out they did nothing to help. Thoughts, findings or opinions?
    7 replies | 93 view(s)
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