How To Install/Adjust Greddy Relife Valve (11501710)

  • inqui-Z-tor
    inqui-Z-tor
    Senior Member
    • 9020

    How To Install/Adjust Greddy Relife Valve (11501710)

    Link to my write-up.

    http://thezenthusiast.com/GreddyRelifeValve.pdf


    If this is in-appropriate or not needed. MODs and/or Admins please delete.
    '84Z31 GLL turbo|theZenthusiast site: http://www.thezenthusiast.com |

    Originally posted by maronee
    PS - by the way your Z31's famous here in japan, dude!!
  • 300zxturboftw
    300zxturboftw
    Senior Member
    • 3709

    #2
    Great mod to have if you are worried about boost spike. The easiest way to adjust this is to do a boost leak test. Keep tightening bolt clockwise until desired pressure is achieved just before pressure is relieved by valve.
    Usual Z31 suspect: Garage Queen (aka broken)
  • matico40
    matico40
    Senior Member
    • 839

    #3
    Any OTHER relief valves available for our cars????
  • Mitchd03
    Mitchd03
    Senior Member
    • 891

    #4
    I guess if you went to a store that specializes in industrial pneumatics and asked them for a relief valve with a 1" NPT thread they'll give you one.

    There are no other car-destined applications though.

    EDIT: Shit like this: http://www.generant.com/vrv.shtml
  • matico40
    matico40
    Senior Member
    • 839

    #5
    Thanks for the info! I'd really like to get one just in case....and no, I don't want to modify the stock one (not for now, at least)

    Edit: I called them up and they told me that these are very "crude/primitive" valves and that they won't work on a car because they are "slow acting"…which means your system will spike for a few seconds still (and then equalize pressure). So a no-go on these

    I guess I'll have to buy this one lol
  • 300zxturboftw
    300zxturboftw
    Senior Member
    • 3709

    #6
    I bought the last one sold in the US new lol. They can be found in decent shape online though. Some people still have them in the box too.
    Usual Z31 suspect: Garage Queen (aka broken)