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  1. #1
    Member sanannbassman's Avatar
    Join Date
    Jun 2004
    Location
    San Antonio, Florida
    Posts
    2,680

    Ranger 370V with 150EFI 23P Tempest Plus Lower RPMs

    I replaced my motor a few years ago and just recently re-setup the motor. I put replaced with a 23P Tempest on when the boat was at 6" PTP. I raised it to the highest position on the transom and am at about 4". The boat gets out of the hole very well but i am only turning about 5K RPM. I am getting to about 53MPH. The prop has large plugs (holes). I noticed that I can trim up all the way and the boat slows down about 3 to 4 MPH and i do lose some water pressure. It appears on my gauge to be about 20PSI when i am hooked up just below full "up" position.

  2. Member
    Join Date
    Jun 2013
    Location
    LONGVIEW TEXAS
    Posts
    13,938
    #2
    if gage is right 20 should be fine
    .................................................. ...the scariest thing in life is the unknown ...................................