underdrive ?

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  • dohcfiend
    King Chalupa
    • Jan 2004
    • 2351

    #1

    underdrive ?

    will an underdrive pulley increase the output of my waterpump at higher rpm's?
    The Official Rotating Mass Nazi
  • Rhedalert
    Dr. Feelgood
    • Oct 2003
    • 1574

    #2
    Re: underdrive ?

    Originally posted by dohcfriend
    will an underdrive pulley increase the output of my waterpump at higher rpm's?
    I think it'd be the opposite.
    Brian

    '95 Cutlass Supreme- "The Rig"
    3400 SFI V6, 4T60e
    Comp Cam grind, LS6 valve springs, OBD2 swap, Tuned
    2.5" DP/ 2.5" dual exh/ Magnaflow Cat/ crap mufflers/ 3500 Intake manifold/ 65mm TB
    TGP steering Rack/ 34mm Sway Bar/Vert STB/ KYB GR2's

    '08 Chevy Trailblazer SWB 1LT "Smart Package"- LH6 5.3L V8/4L60e, A4WD

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    • joey b
      • Feb 2004
      • 75

      #3
      if you put an underdrive on the waterpump, yes. If you put a UD on the crank, it will decrease the amount that the water pump turns, but you should be just fine with the FFP.
      92 cutty auto with a 97 3.4

      93 convert with 3.4

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      • dohcfiend
        King Chalupa
        • Jan 2004
        • 2351

        #4
        thanx.
        The Official Rotating Mass Nazi

        Comment

        • Juglenaut
          • Dec 2003
          • 1130

          #5
          It does yield a noticable response. I might get one later and see for myself.
          I am back

          Mechanical/Service Technican

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