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  1. #1
    Member
    Join Date
    Feb 2006
    Location
    rockford il
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    1,828

    Height on motor excel 1860 with 90 hp

    Guys I ran a trophy 19 on a 1860 with a 4s 90hp 6” jackplate below the cav plate below drain plug and I got 43 gps @5400 VesselView rpm then as I kept trimming to gain speed it started to porpoise. Should I raise motor or lower it ??

  2. Better Lucky Than Good! Casslaw's Avatar
    Join Date
    Jun 2018
    Location
    Tampa, FL
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    7,036
    #2
    Without knowing your current prop to pad measurements or seeing pictures the general rule is to raise the engine if you boat is porpoising when attempting to trim up.
    2006 Triton SP-185, 2006 Evinrude Etec 90, PowerTech NRS3, Garmin Echomap Plus 73CV & 93SV

  3. Member
    Join Date
    Feb 2006
    Location
    rockford il
    Posts
    1,828
    #3
    I will post pics tonight