1. Login to disable the Ads!

Twisted Tuning N54/N55 HPFP R&D.....

Discussion in 'N54' started by Twisted Tuning, Jun 7, 2017.

  1. Twisted Tuning

    Twisted Tuning Lieutenant Vendor

    Messages:
    669
    Decided to take a crack at coming up with possible fixes of the failures for the N54/Early N55 HPFP's and possible upgrades and we all know they are needed for these cars.

    This will be a project I work on in the side, but through the tear down process is shows a lot and answers a few questions I had about what could be failing and etc.

    Don't come in this thread posting talking about what others may or may not have tried or what's available OR not. As I truly don't care. I will request to have it removed.

    I'll post updates as I move along. Some early photos.....

    tmp_20772-IMAG48541805788133.jpg IMAG4805.jpg IMAG4806.jpg IMAG4807.jpg IMAG4809.jpg
     
    Last edited: Jun 7, 2017
    • Like x 8
    • Informative x 3
    • Useful x 2
    • Optimistic x 2
    • Winner x 1
    • List
  2. doublespaces

    doublespaces Administrator

    Messages:
    5,835
    Location:
    AZ
    Ride:
    2009 E93 335i
    Definitely subscribed to this. I've not given up hope on a true upgrade in capacity of some sort.
     
  3. Jsherry20

    Jsherry20 Sergeant

    Messages:
    310
    I'm going to be following this closely as well, I'm curious what your thoughts are on the design of the HPFP.
     
  4. 08_335i

    08_335i Sergeant

    Messages:
    371
    Ride:
    2008 ST 335i
    Sub'd
     
  5. Bmwfixerguy1

    Bmwfixerguy1 Lieutenant

    Messages:
    783
    Ride:
    07 335i MT
    I'm curious as to what can be done.. The type of pump is considered a swash plate style pump.. Some of the late E cars used similar ac compressors.. I'll look into some stuff and see if I can get my hands on some scrap pumps if it will be of any help.. I'd say look into swash plate pumps and how to increase their performance..
     
    • Optimistic Optimistic x 1
    • List
  6. Bmwfixerguy1

    Bmwfixerguy1 Lieutenant

    Messages:
    783
    Ride:
    07 335i MT
    I've thought about this for years now and I'd think and most simple way of increasing performance is changing the angle of the swash plate.. Basically the equivalent of "stroking" the pump/engine.. It would be much less problematic than boring the pump/engine.. Like I said thought about it for years..
    My stage 1 pump would be stroked
    My stage 2 pump would be bored and stroked

    I can't find time to to do the work I need to on my car let alone re-engineer an hpp lol
     
  7. 335i_lou

    335i_lou Specialist

    Messages:
    82
    Location:
    Raleigh, NC
    Ride:
    E90 335i, FBO, inlets, outlets
    Yassss! Sub'd!
     
  8. Jeffman

    Jeffman Lieutenant

    Messages:
    522
    Subscribed / Watching Thread
     
  9. Chris@VargasTurboTech

    [email protected] Sergeant Vendor

    Messages:
    405
    Location:
    Scottsdale, AZ
    I love that someone new is diving into this. I spent a lot of time over the past couple years fooling around with this but I'm not really doing anything productive at the moment with the progress I made. Shoot me an email and I'd be happy to start a dialog and share parts of what I did -looks like you're covering ground but you may like some of the info/parts I could give you. If not, good luck and I look forward to seeing someone do something with it!

    Best,
    Chris
     
    • Like Like x 8
    • Agree Agree x 2
    • Winner Winner x 2
    • Optimistic Optimistic x 1
    • List
  10. Derek@MoorePerformance

    [email protected] Lieutenant Vendor

    Messages:
    653
    Location:
    North Wilkesboro
  11. jayson335i

    jayson335i Specialist

    Messages:
    88
    Ride:
    09 335i
    Def subd for more info
     
  12. Derek@MoorePerformance

    [email protected] Lieutenant Vendor

    Messages:
    653
    Location:
    North Wilkesboro
    All I got to say is you guys will make bank if you can get a reliable performance upgrade for the hpfp. I've looked heavily into fueling upgrades because, I figure that's a good place to start before turbos
     
  13. Jsherry20

    Jsherry20 Sergeant

    Messages:
    310
    Honestly if you opened a company just developing HPFPs for new cars you'd make bank.. every platform needs them lol
     
    • Like Like x 1
    • Winner Winner x 1
    • List
  14. Derek@MoorePerformance

    [email protected] Lieutenant Vendor

    Messages:
    653
    Location:
    North Wilkesboro
  15. 08_335i

    08_335i Sergeant

    Messages:
    371
    Ride:
    2008 ST 335i
    Always nice to see vendors willing to work together to push forward. Especially on something like the HPFP.
     
    • Like Like x 2
    • Winner Winner x 1
    • List
  16. Steven@ClarkPerformanceFab

    [email protected] Sergeant Vendor

    Messages:
    334
    Location:
    Minot, ND
    Ride:
    2010 135i
    Cant wait to see progress made on this. Subscribed!
     
  17. JuniorB

    JuniorB Corporal

    Messages:
    181
    Location:
    Rhode Island
    Ride:
    07 e60
    It looks like a design similar to what a vanos solinoid does, could it be failing seals and o rings? That would be something if all you had to do was clean all the insides and replace the seals,lol
     
  18. Derek@MoorePerformance

    [email protected] Lieutenant Vendor

    Messages:
    653
    Location:
    North Wilkesboro
    As much as I wish it was that simple.. it's not likely. The chamber/mechanism that pressurizes the fuel rail becomes far to weak to support WOT events and start up functions. It's probably a more mechanical failure. I'd have to research it more to give you a better answer but, the hpfp doesn't work similar to the Vanos Solenoids
     
  19. DAVE

    DAVE Specialist

    Messages:
    69
    Location:
    Dallas, TX
    Ride:
    135i
    Sub'd. If you make it I will buy it...
     
  20. Ilkka

    Ilkka Private

    Messages:
    26
    Ride:
    N54 335i e92
    I just registered for giving the thumbs up for this! I hear you are advancing with the project. Personally I'd love to have even a marginal increase in the capacity for being able to run straight E85 instead of E60 and the need to mix. A simple swash plate change could do it. However, I will buy what ever solution you will come up with. :)
     
Loading...