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  1. #1
    brad148405's Avatar
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    Intake Grate Question

    will a 1050 intake grate work on my 780? http://cgi.ebay.com/ebaymotors/1996-...mZ170251980405


  2. #2
    SPEED KILLS, BUT YOU GET THERE QUICKER Keddano's Avatar
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    Yep,It'll fit just fine.

  3. #3
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by brad148405 View Post
    will a 1050 intake grate work on my 780?
    I think that is the Polaris OEM version of the R&D Aquavein '650' intake grate.


    This '650' should fit your hull, but there was another R&D intake grate that was designed for the SL750, embossed with 750SL right into the metal.

    The 650 grate has a less aggressive scoop profile than the 750SL grate, but both are upgrades from the stock Polaris intake grate.

    The attached photos show a comparison of the three;
    Stock (this one is from an MSX 140),
    R&D 650 (Polaris OEM with three bars),
    R&D 750SL
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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    Last edited by K447; 06-15-2015 at 07:16 AM. Reason: Polaris OEM 650 grate has three bars

  4. #4
    brad148405's Avatar
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    the deeper the scoop the better the performance im assuming?

  5. #5
    SPEED KILLS, BUT YOU GET THERE QUICKER Keddano's Avatar
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    The deeper the scoop the better for keeping the pump loaded in rough water,but you'll run slower(top speed) in smooth water then the shallower one because it is catching more water (dragging in effect).It's a trade off and really depends on the conditions you run in the most.

  6. #6
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by brad148405 View Post
    the deeper the scoop the better the performance I'm assuming?
    Better hook-up and speed in rougher water, but less top speed on smooth water.

    The deeper scoop may also reduce initial acceleration from idle in smooth water.

  7. #7
    brad148405's Avatar
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    Yea, I run mostly in rough water, like to porpoise alot... trying to keep that down to a minimum, thats why Im tryign to find some sponsons and a new intake grate.

  8. #8
    SPEED KILLS, BUT YOU GET THERE QUICKER Keddano's Avatar
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    You should have a 4 degree wedge on the pump I think. You could always change it to a 2 degree to help keep the nose down.

  9. #9
    brad148405's Avatar
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    sorry keddano, I dont fully understand what you mean also, on the intake grate, I ahve read somewhere that the tinly metal bar going down the middle gives a little bit more performance or no?

  10. #10
    Rocky_Road's Avatar
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    Quote Originally Posted by brad148405 View Post
    sorry keddano, I dont fully understand what you mean also, on the intake grate, I ahve read somewhere that the tinly metal bar going down the middle gives a little bit more performance or no?
    No, on that...helps keep the 'bigger' logs out of the pump.

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