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  1. #1

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    What is difference...

    I was just wondering what the difference was/is between a polaris 1050 and a 650? Just carburation and such or is there a turbo type of thing involved.

    What are some reasonable ways that I can supe up my 650.


  2. #2
    Water Bum Rodneyae's Avatar
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    Diffrent engine, more displacment

  3. #3
    Water Bum Rodneyae's Avatar
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    You can however convert your 650 to a 780!!!!! With a set of 780 jugs, pistons, and exhaust manifold. You can also add an extended pump.

  4. #4
    Water Bum Rodneyae's Avatar
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    There are lots of other things that you can do!!!!! How much $$$ are you looking to spend?

  5. #5
    ph2ocraft's Avatar
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    Quote Originally Posted by 1hotpotato View Post
    I was just wondering what the difference was/is between a polaris 1050 and a 650? Just carburation and such or is there a turbo type of thing involved.

    What are some reasonable ways that I can supe up my 650.
    The 1050 is a Domestic engine and the 650 a Fuji engine.
    They use completely different ignition systems.
    Domestic uses the Keihin carbs, Fuji the Mikuni's.
    Engine plates and engine mounts are completely different.
    Etc.
    Long story short, it's a ton of work to drop a Domestic engine into a Fuji hull if that's what you're thinking.

  6. #6
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    What he said ^^^^^^^^

    The 650 doesn't have alot you can do for more HP, other than reeds, flame arrestors, and high compression heads.

    You're better off trying to gain speed from a better ride plate, long jet pump, maybe a wedge, 6 vane SS stator, or aftermarket impeller.

    Best bet for a suped up 650 is to do an engine swap.

    650 = 68HP 750 = 80HP 780 = 90+HP

  7. #7
    SPEED KILLS, BUT YOU GET THERE QUICKER Keddano's Avatar
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    If your trying to decide between buying one of the 2 and want good speed,go with the 1050. It will already have everything on it that you would wind up wanting to do to the 650 to get a little more speed and spending alot of money to never be as fast.

  8. #8
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by 1hotpotato View Post
    ...What are some reasonable ways that I can soup up my 650?
    Putting a non-Fuji Polaris domestic (red) engine into the SL650 hull in place of the original 650 Fuji (blue) engine is a lot of time and work.

    The best approach may be to clean up your 650, get it running nicely, and sell it at peak pricing time this season.

    Buy a faster Polaris model for a good price. If you are OK doing some work on it, you can shop for slightly defective examples (dirty, no start, mystery problem, etc).

    Fix up the more powerful new-to-you boat (you'll get lots of advice and guidance here), and have fun riding it!

    If you are after speed with a different Polaris model, then limit your search to 780 (Fuji engine), Pro785 (High output Fuji), and the domestic 1050 and 1200 cc models.

    Newer models will also have sponsons, MDF display, long jet pump, extended ride plate, updated hull designs, and different color schemes. Many of these could be added to your SL650, but you have to buy the parts, plus install and modify as needed. It all takes time and money.

    The Pro785 is essentially a race boat - very quick, light weight, tight handling. Those who have them often say they are one of the most fun PWC they have ridden.

    The Pro785 (aka SLX Pro) was the only Polaris PWC that came from the factory with triple pipes (2-stroke turbo-charging effect), exhaust valves, and other go fast stuff. Fastest Fuji engined model Polaris made.

    1050 and 1200cc 2-seat performance models would include the Pro1200 and the SLX/SLXH. Here is a chart of Polaris models. Click along the tabs at the bottom to see each model's details. Red denotes a domestic engine, Blue means Fuji engine.
    Last edited by K447; 04-11-2008 at 11:56 AM.

  9. #9
    Quote Originally Posted by K447 View Post
    Here is a chart of Polaris models. Click along the tabs at the bottom to see each model's details. Red denotes a domestic engine, Blue means Fuji engine.
    Cool. Is there a downloadable spreadsheet of that somewhere?
    Last edited by rickreeves1; 04-11-2008 at 02:07 PM.

  10. #10
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by rickreeves1 View Post
    Cool. Is there a downloadable spreadsheet of that somewhere?
    http://www.greenhulk.net/forums/showthread.php?t=35776

    I think this is the last version posted;
    Polaris.XLS

    Work back through the thread. There have been a couple of updates over time.

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