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  1. #1

    Xpress H18 new engine

    So I just replaced the Yamaha 115 on my H18 with a 150 Sho. I'm curious about the setup, I'm currently getting about 58mph 5500 RPM with a 23 pitch powertech, Prop to pad is about 5 3/4", with a 6" manual JP. I know that height to low, but how much should I move it up to start? Start with 5 and go up from there or is that still way to low for this boat/motor. Also, any prop recommendations? I know PT is pretty well hated on this forum.

    Troy

  2. Member
    Join Date
    Oct 2017
    Location
    Mobile, Alabama
    Posts
    6,607
    #2
    Try 3.5" PTP and fine tune up 1/4" at a time until you lose speed than drop back 1/4".