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  1. #1

    SLX780 and SL900 performance questions

    Can a 785 motor be swaped into a slx780? I'm guessing they would probably be very hard to find but has it been done? How difficult is it? What about swapping in a bigger motor shuch as a 1200? I'm just thinking ahead if the motor ever goes. 140 hp would be very nice. What I would really like to do now is find some triple pipes for my 96 780slx or 97 sl900. Are these available anywhere? Are there triples from any other year/model that would fit? I read something in another post about PSI triples. Are these bolt on? Who makes them? Where can they be found? Does this install mean I would have to run 92 octane?


    Thank you
    Last edited by rickreeves1; 06-18-2007 at 09:52 AM.


  2. #2
    absentx's Avatar
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    here goes

    Quote Originally Posted by rickreeves1 View Post
    Can a 785 motor be swaped into a slx780?

    Should be easy

    I'm guessing they would probably be very hard to find but has it been done?

    Oh I think you could find one really easily, there are two for sale right now in the classifieds.

    How difficult is it?

    Not too difficult, just takes some time

    What about swapping in a bigger motor shuch as a 1200?

    That would slide right into the SL900, not sure about the SLX


  3. #3
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    I disagree, the 785 has triple pipes that go forward. Ask Beerdart if his was an easy drop in, or Rodneyae if he needed to do some mods. Check the projects section for these two. They listed them with pics.

  4. #4
    Water Bum Rodneyae's Avatar
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    Not easy with the pipes. If it were not for the pipes it would be an easy swap. But if you did not add the pipes you would not have the power.

  5. #5
    absentx's Avatar
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    yeah...forgot about the pipes...I was thinking engine only...and that wouldnt be much fun now would it.

  6. #6
    Moderator beerdart's Avatar
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    Not much fun??? Ha I am having a great time assembling the SLT. I cant wait to see the looks I get when the SLT goes smoking by.....

  7. #7
    absentx's Avatar
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    Quote Originally Posted by absentx View Post
    yeah...forgot about the pipes...I was thinking engine only...and that wouldnt be much fun now would it.
    I meant the 785 engine without pipes wouldnt be much fun

    Installing a 785 engine in a boat it wasnt intended for?? CERTAINLY would be fun!!

    and on one other note....the 785 engine without pipes may not be the ideal way to run it, but you should start it sometime with just the manifolds on...whoooo hoooo!!! loud as hell!!

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