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  1. #1

    Fuel pressure problems

    Hi Guys

    I have installed R&D pulley kit 1-1 with Pink injectors on Ultra 260x.

    I installed 37 psi pressure, but from ride to ride fuel pressure is fall to 22 PSI.

    Install again 37 psi ride about 2 hours everything is ok. Next ride again problems only 22 psi and Utra have only 7300 rpm.

    What is this problem regulator or stock fuel pump?


  2. #2
    nicjak's Avatar
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    replace the stock fp

  3. #3
    Take the time to smile sirbreaksalot's Avatar
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    Stock fuel pump and stock pressure regulator is CRAP, they can handle a STOCK ski cause thats what they were designed to do.
    Change the flow rates ( bigger injectors etc )etc and things seem to go south

    leaving the STOCK CRAP in is asking for trouble, some work some dont ( some will take this short cut )

    I had similar issues with pressure float.
    Do it once and do it right

    gs342 pump ( genuine pump not a Ebay copy)
    remove ALL the in tank regulator shit (not install some stupid jet thingy to bypass reg )
    lower pump in the tank ( throwing the R&D deep pick up over shoulder if u have 1 )
    fit return line bulk head fitting
    install a QUALITY pressure regulator on the return circuit
    set pressure ( approx 37-39) as per AFR requirements , guessing wont do either !!!
    Problem solvededed

    Waz

  4. #4
    Ok. But please show me where stock fuel pressure regulator placed. Do you have photo? I want out it.

  5. #5
    nicjak's Avatar
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    its in the fuel tank above the f/p so when you replace the pump you remove the reg. and replace with fuel line.

    Quote Originally Posted by GEKKON4 View Post
    Ok. But please show me where stock fuel pressure regulator placed. Do you have photo? I want out it.

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