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Thread: Water Pickup

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  1. #1
    Senior Member SnoC653's Avatar
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    I asked a similar question and was told that due to airation by the plates, I should consider moving the pickups under the boat out of the prop blast. I'm working on a true flat though. On your cruiser I would think back more would give you more lateral options to stay wet and out of the prop wash.
    Quote Originally Posted by ogshotgun View Post
    well in a drag boat with a drive you run off the fly wheel my friend .. and if they were jet boat headers they would be pointing forward since jet boats are a direct connect to the flywheel

  2. #2
    WESTERNAERO
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    Yeah, I want to make sure they are getting clean water. I also wonder about the bottom angle, 15 deg, 12.5 deg and flat. Not sure what the GN Raysons and the like are, 7 deg maybe.

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    Senior Member ogshotgun's Avatar
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    my water pick ups are 7" from center and 1.5" from the trailing edge of the plate with a 20* slash cut on them
    ARNG SPC
    Los Alamitos JFTB

  4. #4
    Senior Member ogshotgun's Avatar
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    cp performance part number Cavitation Plate Style -10 AN Water Pick-Up
    410-301101

    comes in many sizes
    ARNG SPC
    Los Alamitos JFTB

  5. #5
    WESTERNAERO
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    Quote Originally Posted by ogshotgun View Post
    cp performance part number Cavitation Plate Style -10 AN Water Pick-Up
    410-301101

    comes in many sizes
    I'm doing -16's and I making them now, so no need for CP's number but thanks. 7.0" off center sounds a little too close to center for some reason. Just from looking at other boats, I was thinking around 12.0" off center. But I am curious if there is some standard to this? Something that figures in the diameter of the prop + the angle of the bottom + distance from the prop, sort of thing.

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    Senior Member Sharp shooter's Avatar
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    One of Mikey's rigging jobs.


  7. #7
    Senior Member ogshotgun's Avatar
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    Quote Originally Posted by WESTERNAERO View Post
    I'm doing -16's and I making them now, so no need for CP's number but thanks. 7.0" off center sounds a little too close to center for some reason. Just from looking at other boats, I was thinking around 12.0" off center. But I am curious if there is some standard to this? Something that figures in the diameter of the prop + the angle of the bottom + distance from the prop, sort of thing.

    i knew you would make your own ... was giving you the part number because i didn't have picture of them .. i looked at several boats yesterday and all of them were different ..
    ARNG SPC
    Los Alamitos JFTB

  8. #8
    Senior Member SnoC653's Avatar
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    If you're running sea strainers the dual setups posted look great. Finally got the location for moving mine under the boat and off the cav plates. I was told to put it on the blast plate, beside the strut and in front of the prop. This actually makes sense as there should be good flow there and I won't have to worry about the cav plates cracking again. My old plate has a crack across the pickup, through the turnbuckle pad, to the inside split of the plate. I'm thinking at speed the added twist from the pickup drag was just enough to get it to start cracking. Not sure what happens if a plate fails, and I don't want to find out either. So to the blast plate mine goes.
    Quote Originally Posted by ogshotgun View Post
    well in a drag boat with a drive you run off the fly wheel my friend .. and if they were jet boat headers they would be pointing forward since jet boats are a direct connect to the flywheel

  9. #9
    WESTERNAERO
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    What material were your plates made from?

  10. #10
    Senior Member Sharp shooter's Avatar
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    Quote Originally Posted by SnoC653 View Post
    I asked a similar question and was told that due to airation by the plates, I should consider moving the pickups under the boat out of the prop blast. I'm working on a true flat though. On your cruiser I would think back more would give you more lateral options to stay wet and out of the prop wash.
    Julian rigged the Biesemeyers with a single pick up under the boat (at the blast plate). If that comes loose or fails at speed your boat will likely sink.

    I have 2 #12 pick ups separated by 9.5 inches (centered) 9 inches behind the transom. I still use the blast plate pick up, but mine is set up for the oil cooler and v-drive and I check it for tightness every trip.

    Last edited by Sharp shooter; 04-02-2014 at 05:14 PM.

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