Low Profile Intake ??
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Low Profile Intake ??

  1. #1
    LP-25.com Infomaniac's Avatar
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    Default Low Profile Intake ??

    This is the hot setup.

    Was wondering if it puts the pump into the water out the back of the boat? and more drag but better loading?

    As compared to our boat that is up on the ride plate and nozzle in the air.
    Ours is most definately old school with the superjet intake.

    Just curious

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  3. #2
    Senior Member Woods 017's Avatar
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    Looks a little tight to me but it depends on what you are trying to do and the hull type.





    What set up do you have in it now?

    I'm sure other on here can explain a low profile intake better than I but my understanding is that it lessons the entry angle of the water giving it a more direct (straight) path to follow. With the less bend the pump is more efficient.

    This may help as well:

    http://home.pacbell.net/jmcclure/LoProIntake.html

  4. #3
    mo balls than $cents$ IMPATIENT 1's Avatar
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    i've thought about selling the motor outta my nordic, have a low profile intake put in with a small keel over the winter, drop in my lil sbc project and see wtf it'd do. i think the low profile intake with the lesser entry angle would really help my flat keeled tunnel, as i'm sure alil keel would as well.


    fuel, which boat has the low pro and which doesn't?

    Dare to be different, if it turns out great you can claim you planned it that way.

    Jetboatperformance.com

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  6. #4
    21 Daytona Outlaw's Avatar
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    Do the low profile intakes help on the top end MPH?
    or more for quickness?
    #55

  7. #5
    LP-25.com Infomaniac's Avatar
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    Yep a gradual turn of the water is much better.

    Maybe I am mistaken about it lowering the elevation of the pump.

    Was looking at a pic of a boat running with a low pro intake and only about half of the bowl is visible, it has a droop with the steering straight out to the tiller. And the steering rod is barely out of the water. So most of the pump is dragging through the water.

    pic is here

    http://dragboats.com/gallery/picture...=13773&RecID=8


  8. #6
    Senior Member Woods 017's Avatar
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    Quote Originally Posted by IMPATIENT 1 View Post
    fuel, which boat has the low pro and which doesn't?

    Neither. Both have standard Berkley intakes w/ have have been machined for shoe/ride plate and set by MPD the rigging was done at B1 racing.

    Here another pic
    Last edited by Woods 017; 10-06-2009 at 12:01 PM.

  9. #7
    Senior Member Woods 017's Avatar
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    Quote Originally Posted by Infomaniac View Post
    Yep a gradual turn of the water is much better.

    Maybe I am mistaken about it lowering the elevation of the pump.

    Was looking at a pic of a boat running with a low pro intake and only about half of the bowl is visible, it has a droop with the steering straight out to the tiller. And the steering rod is barely out of the water. So most of the pump is dragging through the water.
    MPD Low Profile intake:

  10. #8
    Senior Member Ahsumtoy's Avatar
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    So other than the 5* vs 6*, and the loader, how is a low profile intake different from an "R" intake?
    Last edited by Ahsumtoy; 10-06-2009 at 12:26 PM.

  11. #9
    Senior Member cyclone's Avatar
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    Quote Originally Posted by Infomaniac View Post
    Yep a gradual turn of the water is much better.

    Maybe I am mistaken about it lowering the elevation of the pump.

    Was looking at a pic of a boat running with a low pro intake and only about half of the bowl is visible, it has a droop with the steering straight out to the tiller. And the steering rod is barely out of the water. So most of the pump is dragging through the water.

    pic is here

    http://dragboats.com/gallery/picture...=13773&RecID=8


    what you're seeing is water spraying out the tunnel next to the bowl. the bowl is not dragging in the water.

  12. #10
    LP-25.com Infomaniac's Avatar
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    Good thanks.

    Thats why I posted up the pic.

    Quote Originally Posted by cyclone View Post
    what you're seeing is water spraying out the tunnel next to the bowl. the bowl is not dragging in the water.

  13. #11
    Boat Nut sleekcrafter's Avatar
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    A low profile intake will lower the entire pump, the bowl will nearly touch the ride plate. CS19 posted up dimensions of all the low profile intakes at one time.
    Upper Midwest Power Boat Association
    DRAG BOAT RACING UMPBA #926


  14. #12
    Spiral out MikeF's Avatar
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    This is one of the early BayJet modded ones. Intake/engine is set at 6 deg, and at about 2 deg up on the plate......and the droop is "not" below the plate.

    Last edited by MikeF; 10-06-2009 at 05:29 PM.

  15. #13
    Boat Nut sleekcrafter's Avatar
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    MPD Lo-Profile new in 2008

    Upper Midwest Power Boat Association
    DRAG BOAT RACING UMPBA #926


  16. #14
    Senior Member Woods 017's Avatar
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    Quote Originally Posted by Ahsumtoy View Post
    So other than the 5* vs 6*, and the loader, how is a low profile intake different from an "R" intake?
    An R Intake is a version of a low profile intake. Jack has put up a chart explaining the differences on his website.

    http://home.pacbell.net/jmcclure/LoProIntake.html

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