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  1. #1
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    Baffles in Aluminum fuel tank, ideas?

    having a custom tank built. Any ideas or drawings for baffle design. Tank measurements are:

    22" W X 10" H X 13" Deep

    Was thinking about seperating into 1/4's, with angled open corners top and bottom of each baffle plate to allow fuel to flow through baffles.

    Dont know anything about baffles but saw a pic of homemade plane tanks, and the idea looked good.

    Tank being built of 0.125 plate, apparently is good for planes. Is this enough or not, or too much? Tank is gong to be fixed under splash well in Vector as a second tank, 17 gal tank in bow.
    Talon 18

  2. #2
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    Why do you think you need baffles? My 18gal aluminum tank doesn't have any baffles and seems to work fine. What about using a foam sponge like a fuel cell has instead?

    ------------'82 Vector - Mercury 2.4 Bridgeport "MOD"
    "Life is short - Get there fast...MERCURY"

  3. #3
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    I think baffels are a good idea, I have put them in all the tanks i have built they minimise fuel movement around the tank and keep a more constant fuel level around pickups especially when fuel levels are low.

  4. #4
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    Foam?

    What do you mean by foam?
    Talon 18

  5. #5
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    All the racing fuel cells have foam in them. Here's a link to see what I'm talking about.

    http://www.jegs.com/webapp/wcs/store...tegoryId=16249

    ------------'82 Vector - Mercury 2.4 Bridgeport "MOD"
    "Life is short - Get there fast...MERCURY"

  6. #6
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    Just bought a fuel cell from JAZ in Ca. yesterday they come with a poly foam that eliminates slosh completely...They ( JAZ ) are a VERY popular fuel cell manufacturer and the foam is standard in all thier cells.

    Good luck,

    jazproducts.com.
    1 805 525 8800
    Jay @ JSRE


  7. #7
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    You can buy the foam and have it put in to the tank you are having built. Or just buy one of the JAZ tanks if it will fit in the area that you want it. I put the foam into stock alum. tanks and mod. the fuel pick-up and they work quite well for performance use after this.

  8. #8
    Join Date
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    you could also use rocks , they will slow down the sloshing affect . lol
    dont ever use apple drywall company on long island , they suck !!!!!!

  9. #9
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    I agree with the addition of baffles in a fuel tank, it should help with any chine walking by controlling the sideways sloshing.
    Jeff Bare
    Gig Harbor, WA

  10. #10
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    Baffle Design

    The easiest is to create baffles is to weld in dividers (Number depends on width of tank) with round holes (about 2" in dia.) cut in each one at random points ...but stopping about 4" from the bottom. At the bottom of each divider cut a 2" long "U" that starts at the bottom of each divider and is spaced 3" apart along the divider. Place a "U"s at each bottom corner of the divider.

    I assume you are also building in a sump. If not then this would be a good addition.

    Jon Wright

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