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  1. #1
    rob2337's Avatar
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    Sl Porpoising Problem Fixed :)

    I want to thank all of you that helped me with my porpoising problems on my two SLs. I bought two Ocean Pro Ride plates from Ken (as suggested) and two sets of slt sponsons from Xlint (as suggested) . I tried the 750 today, and what a huge difference. Usually my friend who has a Raider always kills me because I start bouncing around in the chop. Today I was riding with him, and opened it up and left him in my wake. He was like . The Sl is as smooth as can be, and really turns. I guess no more spins..


  2. #2
    Moderator beerdart's Avatar
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  3. #3
    ph2ocraft's Avatar
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    No MO spins, tough to have both worlds but now you can set up some bouys and have a blast racing your friends around the track.

  4. #4
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by rob2337 View Post
    ...porpoising problems on my two SLs.
    ...Ocean Pro Ride plate... SLT sponsons...what a huge difference.
    ...in the chop...opened it up ...as smooth as can be, and really turns...
    Could you post pictures of what the Ocean Pro ride plate and SLT sponsons look like installed?

  5. #5
    rob2337's Avatar
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    I'll take some shots and post them

  6. #6
    ShaneG's Avatar
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    Did the ride plate mounting holes line up pretty well? On my 650 they did, but I know someone asked about it. Glad to hear, start looking for parts to extend your pump 4 inches, that makes a huge difference as well and relatively speaking is one of the biggest bangs for your buck in performance.

  7. #7
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Rob, you can still do donuts. Try it....

    I spin out all day long with the same set up. SLT sponsons are not overly agressive.


    Makes a HUGE difference doesn't it?

  8. #8

    Sponsons Installation

    I just bought a SL780, it has no sponsons or mounts for them, thining about installing because of crazy porpoising. How did you install on your SL's
    Thanks for any info

  9. #9
    rob2337's Avatar
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    Ride plate will make a bigger difference for porpoising. Ocean Pro Engineering sells them for $95 on e-bay.

    There are two ways to install the sponsons. On my 750, I cut out the styrofoam in the hull, drilled the holes and bolted them on with Stainless bolts, washers and nuts. The you have to reglue all the foam you cut out back in.
    On my 650, I used a set of rivet nuts. You only have to work from the outside of the hull. The only downside is that you need a tool to install the rivet nuts.

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