GO FISHING, use SLABSAUCE Fishing Attractant
Results 1 to 9 of 9

Thread: Custom fuel rail is done!

  1. #1
    Join Date
    Dec 2003
    Location
    PA
    Posts
    5,403

    Default Custom fuel rail is done!

    Long story short - I bought a Ross Machine Racing BMW fuel rail a while ago when I was first starting my build. It is a nice rail made from -6 AN aluminum extrusion. As my build went underway and I kept building up the engine and parts for a lot of power, I realized -6AN may not be ideal for the fuel flow I intend to run.

    A lot of big HP guys run -8AN but the only readily available -8 AN rail is a PPF unit from Sweden. So I started looking into making my own. Found that Ross sells -10AN extrusion for $12/ft. So I sold the -6 AN with fittings for a bit of a loss, but the cheap raw extrusion would make up for it.

    So anyway, we went and copied another -6 rail I had in terms of fitting size and bore depth. This is a huge rail capable of flowing more fuel than I could ever want. Its nice to not have to worry about choking on fuel flow. All my lines are -10AN and the rail is -10AN and everyone is happy.

    We also tapped the center of the rail for a -4 AN feed directly to the nitrous solenoid. So instead of T'ing the fuel line all sloppy, we tap the rail and its a nice neat tidy package. I'll shut up and post some pics!

    Old rail size vs new rail size:










    I am pumped - and also, my motor should be done in the next few days!


    Jon

  2. #2
    Join Date
    Dec 2003
    Location
    Wellington,New Zealand
    Posts
    3,868

    Default

    the 10 AN looks like a 45 colt.....
    Gone but not forgotten

  3. #3
    Join Date
    Jul 2006
    Location
    kingsbridge, devon, uk
    Posts
    626

    Default

    that looks damn good

  4. #4
    Join Date
    Dec 2003
    Location
    PA
    Posts
    5,403

    Default

    Thanks guys!

    Inner diameter of -10 is .625"

  5. #5
    Join Date
    Dec 2003
    Location
    Dunlap Illinois
    Posts
    1,198

    Default

    Anybody want to invest some stock in Tire Rack with me??? =)

    Good work Jon, well done. Hope everything goes smoothly for you. Are there any modifications to the drivetrain and clutch to keep them from exploding when you "tap" the pedal? How about stopping? You got a chute? =)

    JR

  6. #6
    Join Date
    Dec 2003
    Location
    PA
    Posts
    5,403

    Default

    Those are only 65# - they are not mine they are for a friends car, I used them for fit up though.

  7. #7
    Join Date
    Dec 2003
    Location
    PA
    Posts
    5,403

    Default

    Quote Originally Posted by Jr ///M5
    Anybody want to invest some stock in Tire Rack with me??? =)

    Good work Jon, well done. Hope everything goes smoothly for you. Are there any modifications to the drivetrain and clutch to keep them from exploding when you "tap" the pedal? How about stopping? You got a chute? =)

    JR
    haha - just a standard flywheel for now (might change my mind later) and a 4 puck clutch. I am going to be making a driveshaft hoop. No chutes This is a street car - as soon as the car is running and all the kinks ironed out, I am going to be making adapters to fit wildwood 6 pot calipers on the front with a big disc.

  8. #8
    Join Date
    Jan 2008
    Location
    Quebec, Canada
    Posts
    608

    Default

    Whats the flow on those injectors?


    BMW E34 1992 525i Touring

    RIP Touring...probably never going to drive you again...

  9. #9
    Join Date
    Apr 2006
    Location
    Bay Area, CA
    Posts
    395

    Default

    well done.
    Greg Mannino
    Car Audio.Video.Security.Navigation Guru
    Electrical/Mechanical Specialist

Similar Threads

  1. Fuel rail pressure?
    By 632 Regal in forum 5 Series BMW
    Replies: 9
    Last Post: 11-01-2009, 12:11 AM
  2. I Have Fire And Fuel To The Rail But Won't Start
    By clarkstreet in forum 5 Series BMW
    Replies: 5
    Last Post: 02-03-2009, 05:37 PM
  3. HELP! can't get fuel pressure regulator out of fuel rail....
    By ryan roopnarine in forum 5 Series BMW
    Replies: 2
    Last Post: 01-21-2007, 09:26 PM
  4. Fuel line to fuel rail, pipe bursts
    By Mozarts_Ghost in forum 5 Series BMW
    Replies: 30
    Last Post: 04-14-2006, 12:52 AM
  5. Fuel rail and injectors
    By jj7 in forum 5 Series BMW
    Replies: 1
    Last Post: 04-04-2005, 08:40 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •