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Blowing through a dominator.

Discussion in 'Newbie and Basic Turbo Tech Forum' started by KONG, Mar 6, 2019.

  1. KONG

    Joined:
    Jan 3, 2018
    My dominator doesn't have a PV. There's just a plug in it's place. (both ends) Is a pv necessary in the case of boost applications or is it just necessary to mod or buy a boost referenced PV in carbs that run them?
     
    KONG, Mar 6, 2019
    #1

  2. Bad Medicine Racing

    Joined:
    Jun 4, 2007
    It is not a must have. But it sure helps on the street because it adds 8-10 jet sizes when vacuum drops and load increases. And that is before you drill out the holes in the metering block.

    I would pull the PV plugs and see if the holes are present for the power valve channels, and go from there. Remember if you run a rear power valve it will need an extension to keep it in the fuel under hard acceleration same as your jets.
     
    Bad Medicine Racing, Mar 6, 2019
    #2
    KONG likes this.

  3. KONG

    Joined:
    Jan 3, 2018
    Wouldn't it be boost that activates the PV and not Vacuum drop?
     
    KONG, Mar 21, 2019
    #3

  4. Bad Medicine Racing

    Joined:
    Jun 4, 2007
    Only if you use a boost referenced PV. Standard power valve will operate as normal.
     
    Bad Medicine Racing, Mar 21, 2019
    #4

  5. KONG

    Joined:
    Jan 3, 2018
    Can you use a standard PV with a blow through application?
     
    KONG, Mar 21, 2019
    #5

  6. Bad Medicine Racing

    Joined:
    Jun 4, 2007
    Yes. You may get to the point of making them "flutter" with enough boost, but they work fine to at least 10-15psi.
     
    Bad Medicine Racing, Mar 21, 2019
    #6
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