Bow mounted fuel tank
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Bow mounted fuel tank

  1. #1
    Junior Member Blownbbc632's Avatar
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    Default Bow mounted fuel tank

    Hey guys looking for some advice on my 19' 77 Dimarco jet, I have 2 rear mount gas tanks that equal 22 gallons total and after three hours of cruising around at 3000 to 4000 rpm I run out of gas. Where I live and boat there are not very many places that have gas on the water to purchase and carring gas with me sucks. I was thinking of adding a tank to the bow allowing me to carry more gas and was curious if anyone has done this and what kind of performance problems can i expect?

    Thanks shane
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  3. #2
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    How big of a tank are you thinking
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  4. #3
    Junior Member Blownbbc632's Avatar
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    I was looking at maybe 20 to 24 gallons depending on how much room I have. I don't want to sacrifice how it handles or give up so much speed that it isn't fun, it may not be worth doing at all.
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  6. #4
    tintingsandiego krusn56's Avatar
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    I have a custom made 30g belly. 2 Large batts near trans, bolt on shoe/plate with straight snoot. This set up works for my 18 spectra.
    First pic is right after mounting an spray foam...the weights are to keep it in position while foam dries.




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  7. #5
    Senior Member jetboatperformance's Avatar
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    Quote Originally Posted by Blownbbc632 View Post
    I was looking at maybe 20 to 24 gallons depending on how much room I have. I don't want to sacrifice how it handles or give up so much speed that it isn't fun, it may not be worth doing at all.
    Would advise not putting the additional weight in the bow which will adversely effect, Trim, and handling 20 gallons of fuel plus the tank itself etc would add north of 150 lbs where you dont want it
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  8. #6
    '74 Sanger ski hydro the General's Avatar
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    How much more do you think an open bow vs. an identical closed bow weighs in the front? I bet it's atleast 150lbs. with the added fiberglass, seats, stuff stored under the seats, etc. Not to mention there are 70's model boats that came with fuel tanks in the bow. I think it'll be alright, assuming you're not trying to win any races.
    Last edited by the General; 02-15-2016 at 11:49 AM.
    87 Kustom Kraft open bow cruiser jet
    84 Eliminator Daytona jet
    74 Sanger ski hydro v-drive
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  9. #7
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    It will have a negative effect how bad is a crap shoot ... Why not throw 150 lbs of sand bags up front and see what it does be for you spend any money ??
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  10. #8
    Junior Member Blownbbc632's Avatar
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    Thanks for the replies guys, I'll have to try the sand bag thing and see how it reacts. My last jet was a 18' 1981 Avenger by cee bee boats and that had a 24 gallon tank mounted in the bow with a 468 bbc, a berkeley 12jc pump and it didn't like to plane out very fast so I would guess this boat would face the same fait. I may just have to haul a tank in my truck. I like the tank u had built for your boat Krusn56 look awesome. Thanks guys.
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