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  1. #1

    Join Date
    Dec 2005
    SWEDEN/Fort Lauderdale

    Gpr Inlet water pressure?

    Anyone knows how much pressure/flow a yamaha pump produce?

    Oem inlet or a modified bigger one..

  2. #2
    cheatin' piston popper addicted's Avatar
    Join Date
    Jul 2006
    north jersey
    depends on the restrictions downstream, but i have presonally pegged a 100 psi gauge at 1/2 throttle

    on my heat exchanget setup I have the stock 5/8 hose in and a 1/2 and 3/8 hose out and i see 35 psi or so at full throttle.

    any way you look at it, it moves alot of water.

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