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  1. #1
    Member
    Join Date
    Mar 2015
    Location
    Matherville, Illinois
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    118

    150 Pro XS swap, need info

    Have 181 Champion and looking at swapping out 150 merc EFI to the new 150 4 stroke Pro XS. Has anyone done this with their 18' boat and have some info like hole shot, top end, and ride. Did you have to change the prop, the motor height, etc. any info would be great, can't really get any info from the dealers. Thanks

  2. Member wareagle24's Avatar
    Join Date
    Aug 2009
    Location
    Florence, Al.
    Posts
    16,308
    #2
    Post this in the Mercury 4 stroke section. Somebody should be able to help you out.

  3. Member
    Join Date
    Mar 2015
    Location
    Matherville, Illinois
    Posts
    118
    #3
    thanks

  4. Member
    Join Date
    Nov 2008
    Location
    Raleigh NC / Falls Lake
    Posts
    11,210
    #4
    You going to have to go to a lower prop? And a 8 pin to 14 pin harness off top . I would use the prop you all ready have for a starting point .

  5. Banned
    Join Date
    Jul 2016
    Location
    Skiatook, Oklahoma
    Posts
    7,952
    #5
    From what I've seen the 4 strokes run a pitch or two down on the props different lower gear ratio. Haven't swapped one over but the fuel system on my 4 stroke is pressurized with no vent not sure what you would have to do to your fuel cell.