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  1. #1
    Senior Member Two Rings M_souren's Avatar
    Join Date
    May 03 2007
    AZ Member #
    17751
    My Garage
    2001 Audi a4 TQM
    Location
    Bridgewater, North Jerz

    Bosch 4-bar fuel pressure regulator...a wise choice?

    The cars basically stage one. Im looking for a smoother power band and a friend has a 4bar laying around. Will it even make a difference if i throw it in?
    Audi's and Vw's galore

  2. #2
    Veteran Member Three Rings LEGO's Avatar
    Join Date
    Aug 20 2007
    AZ Member #
    20438
    Location
    SEATTLE, WASHINGTON

    You know the stock fuel pressure regulator you have in your car already is a bosch 4bar fuel pressure regulator right? So you'd pretty much be putting the same one in.
    1998 A4 1.8TQM MTM K04 5.82/034 415CC BT TUNE/GENESIS 415CC INJECTORS
    http://s22.photobucket.com/albums/b331/nelly11299/

  3. #3
    Senior Member Three Rings
    Join Date
    May 09 2009
    AZ Member #
    42276
    Location
    Syracuse, NY

    Don't change the FPR unless your tune calls for it. Also ^.

  4. #4
    Registered User Four Rings Mike@PureMS's Avatar
    Join Date
    Jul 19 2007
    AZ Member #
    19663
    Location
    San Diego, CA

    You should already be running a 4-bar. It's the stock FPR on the A4's. No need to change it.

  5. #5
    Veteran Member Four Rings 99blueb5's Avatar
    Join Date
    Mar 10 2008
    AZ Member #
    26268
    My Garage
    01 S4, 99 A4
    Location
    Bellevue, WA

    wont do anything, plus you arnt making enough power to actually need to mess with the fuel pressure
    99 A4 1.8TQM:
    APR Stage 3 GT28rs kit, CM FX400 6puck, 3" downpipe, Nuespeed catback,Nuespeed short shift, Cxracing fmic, Forge007 DV, H&R coilovers, APR snub mount, gasket ported head, VDO guages, e codes, 6k's, Fiberimages CF hood/trunk, A8 BBK, IE Rods

    00 B5 S4
    Vast stage 3, Rs4 airbox, ko4's,borla cat back, neuspeed sways, statis coils, jhm fmic, SSAC Dp's

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