Place Diverter Nozzle Modification.
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Place Diverter Nozzle Modification.

  1. #1
    LP-25.com Infomaniac's Avatar
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    Default Place Diverter Nozzle Modification.

    So I don't like the reverse outlet hanging down in the water. I'm thinking about machining it off so we don't drag it down the drag strip.

    And I don't like how it opens up (an increase in area) just in front of the reverse bucket. Thinking about machining that off as well.

    Any reason why not to? We are going to race this boat mainly.

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    Senior Member Luckie Stiff's Avatar
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    Why not ditch the diverter altogether and go with a race nozzle?
    "Don't you realize that there are already enough people in the world to hate without you putting in so much effort to give me another?"

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    Senior Member watergun4u's Avatar
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    Quote Originally Posted by Infomaniac View Post
    So I don't like the reverse outlet hanging down in the water. I'm thinking about machining it off so we don't drag it down the drag strip.

    And I don't like how it opens up (an increase in area) just in front of the reverse bucket. Thinking about machining that off as well.

    Any reason why not to? We are going to race this boat mainly.

    Check with tom at ( JBP ) He is doing some mods on the old style diverters and they look pretty cool, changing to kind of look like the new style with the built in ride plate on the noozle!

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    Senior Member jetboatperformance's Avatar
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    Quote Originally Posted by Luckie Stiff View Post
    Do you have any pics of a later PD nozzle as modified?
    The simple way is as it is in Josh's second pic (above) , simply close off (plate) and fill the reverse chute (look at the Place "ride plate area") then modify the Butt Bucket to fit , in the other pic the nozzle has been welded turned in the lathe filled and milled and the choke relocated call if I can help Tom


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    Cool. Apparently my gut feeling that something was terribly ineffecient has been noticed before. But I'm only a 1 week long jet boat owner.

    I'll call you tomorrow Tom

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    Senior Member Luckie Stiff's Avatar
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    Nice looking bucket Tommy, I got one from Jim Brock for the Hallett, now I just need a race nozzle to modify for my PD and I'll set!
    "Don't you realize that there are already enough people in the world to hate without you putting in so much effort to give me another?"

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    Senior Member jetboatperformance's Avatar
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    Quote Originally Posted by Luckie Stiff View Post
    Nice looking bucket Tommy, I got one from Jim Brock for the Hallett, now I just need a race nozzle to modify for my PD and I'll set!
    Skip Thanks , no need for the "R" nozzle ,we do these with the standard PD's ( both early and late, examples above) the Butt can be milled and adapted

    Tom

    btw FWIW we sell the buckets as new castings

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    Senior Member Luckie Stiff's Avatar
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    Quote Originally Posted by jetboatperformance View Post
    Skip Thanks , no need for the "R" nozzle ,we do these with the standard PD's ( both early and late, examples above) the Butt can be milled and adapted

    Tom

    btw FWIW we sell the buckets as new castings
    Do you have any pics of a later PD nozzle as modified?
    "Don't you realize that there are already enough people in the world to hate without you putting in so much effort to give me another?"

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    Quote Originally Posted by Luckie Stiff View Post
    Do you have any pics of a later PD nozzle as modified?
    Yea and can you send me the drawings?

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    Senior Member jetboatperformance's Avatar
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    Quote Originally Posted by Luckie Stiff View Post
    Do you have any pics of a later PD nozzle as modified?
    The simple way is as it is in Josh's second pic (below) , simply close off reverse (plate) and fill the reverse chute (look at the Place "ride plate area") then modify the Butt Bucket to fit , in the other pic the nozzle has been welded turned in the lathe filled and milled and the choke relocated call if I can help always happy to do so Tom second post same pics


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    Senior Member NiceGuyEddie's Avatar
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    Hey Tom,

    Any luck on that suction housing?

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    Senior Member jetboatperformance's Avatar
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    Quote Originally Posted by rIVERtRASH View Post
    Hey Tom,

    Any luck on that suction housing?
    Check pms Tom

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    Senior Member bp298's Avatar
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    Quote Originally Posted by jetboatperformance View Post
    The simple way is as it is in Josh's second pic (below) , simply close off reverse (plate) and fill the reverse chute (look at the Place "ride plate area") then modify the Butt Bucket to fit , in the other pic the nozzle has been welded turned in the lathe filled and milled and the choke relocated call if I can help always happy to do so Tom second post same pics

    that "buttbucket", which is just like an old R bucket, is fine for river/lake use, but for racing it will absolutely suck.

    info, if you're going to machine the pd nozzle to look like an old r nozzle, and you intend to race the thing, you'll want a standard bucket modified to force water so it discharges to the sides when the bucket is closed (no reverse). ideally, when you start the engine on the rope, it does not move forward/back/side to side, without ever messing with the shifter (there are plenty of other things to do on the rope besides mess with the shifter). and no, i don't have a pic of the bucket mod i'm talking about - lots of other guys have them.

    other things you can do is modify the pd arm and shift arm, so both of those are out of the water too. i know a guy that's spent hundreds of hours modifying all those things to get absolute minimum drag - he's still working on it. he's also never run the deal with standard stuff, so won't know what actual improvements he's made, which is kinda sad, but that's how it goes sometimes. needless to say, if you can get ALL that junk up and out of the water stream, it'll be quicker. if you're going to go through all that effort, it would be cool to get a baseline with the standard type stuff first, then see what difference those changes make on the track.

    i use the later model pd nozzle with the flat plate, with a block in the reverse nozzle, so it's all flat. i have 2 3/4" holes drilled in the reverse nozzle, one on each side, just above the reverse exit, and use the standard pd bucket. for the brackets, that's all that's needed.

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    Quote Originally Posted by bp298 View Post
    ... info, if you're going to machine the pd nozzle to look like an old r nozzle, and you intend to race the thing, you'll want a standard bucket modified to force water so it discharges to the sides when the bucket is closed (no reverse). ideally, when you start the engine on the rope, it does not move forward/back/side to side, without ever messing with the shifter (there are plenty of other things to do on the rope besides mess with the shifter). and no, i don't have a pic of the bucket mod i'm talking about - lots of other guys have them.

    ...

    i use the later model pd nozzle with the flat plate, with a block in the reverse nozzle, so it's all flat. i have 2 3/4" holes drilled in the reverse nozzle, one on each side, just above the reverse exit, and use the standard pd bucket. for the brackets, that's all that's needed.
    A "shakey" pic of a modified diverter. Reverse bucket has been modified so that it discharges to the sides and the reverse part of the nozzle has been filled with a flat plate.

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