fuel cell question

Fuel and Air Systems

  1. Dale Coulter

    Dale Coulter 67 SuperFish

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    hey folks, I'm putting a fuel cell in my 67 pro street barracuda, do I need fuel cell foam in the tank or not? The car will be ran 100% of the time on the street. I understand the purpose of the foam for off road application, but not sure about the street.
     
  2. Johnny Mac

    Johnny Mac www.blueprintengines.com FABO Vendor

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    The purpose of the foam is to prevent fuel slosh. This is more present on the street than anything. If you don't have foam, your fuel will slosh to one side of the tank in a turn, and you could suck air. I'd say at 1/8 - 1/4 capacity with no foam, with some cornering or bouncing you could easily suck some air.
     
  3. Dale Coulter

    Dale Coulter 67 SuperFish

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    ok I see what you are saying, but is there foam in todays new vehicles ...
     
  4. yellow rose

    yellow rose Doctor of Thinkology.

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    You don't need the foam if the outlets are correctly placed.

    I took the foam out of my fuel cell after on trip to the track.
     
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    • Dale Coulter

      Dale Coulter 67 SuperFish

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      it will be a low sump aluminum from speed masters or the poly from jaz , not sure yet.
       
    • yeah

      yeah Well-Known Member

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      I have a cell in my car with a low sump . When hard cornering I had fuel slosh in the cell ,put foam in it solved the problem . What Johnny said is totally right . Put the foam in it .
       
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      • RustyRatRod

        RustyRatRod 30 Degrees Outta Whack FABO Gold Member

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        If you are going to argue against an expert's opinion after asking for advice, why even ask at all?

        The foam in the cell also serves another purpose. To help contain a majority of fuel in the event the tank is ruptured in an accident....which is more likely to happen on the street than on the track.
         
      • yellow rose

        yellow rose Doctor of Thinkology.

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        It's not that kind of foam.
         
      • famous bob

        famous bob mopar misfit

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        Gotta go w/ yellow rose here, I have ran a couple of them on the street , w/ the dropped rear sump, both alum.. I had to pull the foam out because it was deteriorating in both !! Didn`t present a problem at all !
         
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        • roccodart440

          roccodart440 Well-Known Member

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          You are better off with a baffled cell than foam.

          Foam breaks down and needs to be changed.
           
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          • brian6pac

            brian6pac Well-Known Member

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            Today's cars the fuel pump sits in a plastic well, this does 2 things keeps it from sucking air when low and keeps the pump cool being submerged in fuel
             
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            • RustyRatRod

              RustyRatRod 30 Degrees Outta Whack FABO Gold Member

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              I know exactly what it is. I've had several fuel cells. Nonetheless, it still captures and contains some fuel.
               
            • Dale Coulter

              Dale Coulter 67 SuperFish

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              really....lolmao
               
            • Dale Coulter

              Dale Coulter 67 SuperFish

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              yes that is true brain and I agree with that. the reason I posted the question is because I can purchase a cell with or w/out foam for the same application. I wasn't sure why that is. because if its such a big deal to have foam in the fuel cell, then why sell the same fuel cell for the same application w/out foam. I was thinking it was some secret squirrel reason, but I guess it is what it is.
               
            • famous bob

              famous bob mopar misfit

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              Meant the rear sump cell didn`t present a problem, the foam did.
              Of course I have always run elec. pumps too.
               
            • Dale Coulter

              Dale Coulter 67 SuperFish

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              ok, thank you for the advise....I'm going with out the foam, don't need the added stress....building this thing is stressful enough.lol
               
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              • famous bob

                famous bob mopar misfit

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                I doubt you`ll ever have a problem w/o the foam, unless ur car is built for constant corner carving.
                 
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                • Dale Coulter

                  Dale Coulter 67 SuperFish

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                  thanks for the help ...I have decided to go without foam...JEGS has some nice units for the pro street application.
                   
                • clinteg

                  clinteg Well-Known Member

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                  I have foam in mine with a sump and I still get fuel slosh when braking and it starves the pump until I level out or start accelerating again. The foam is starting to deteriorate since I am starting to find pieces in my filter. IMO, the foam is worthless and should be left out.
                   
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                  • fishfly

                    fishfly Well-Known Member

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                    I bought the summit brand 20 gallon with foam 5-6 years ago. I haven't seen any deterioration in the foam. I inspect it regularly and can stick my hand down in there and feel the foam. No fuel delivery issue either. That said, my new cell will be baffled and already set up for easy conversion to fuel injection
                     
                  • SGBARRACUDA

                    SGBARRACUDA ROY FABO Gold Member

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                    If it is a street car like my 68 Barracuda, you may want to consider a more street friendly cell like this one. Works great for me.

                    fuel system barracuda.jpg

                    fuel system barracuda-2.jpg
                     
                    Last edited: Aug 8, 2018
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                    • brian6pac

                      brian6pac Well-Known Member

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                      How many gal is that, looks like 5 gal ?
                       
                    • SGBARRACUDA

                      SGBARRACUDA ROY FABO Gold Member

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                      Mine? 12 gallon.
                       
                    • brian6pac

                      brian6pac Well-Known Member

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                      Really, interesting, it doesn't look like it would holds 12 gal. How far can you go on that ?
                       
                    • yellow rose

                      yellow rose Doctor of Thinkology.

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                      72 miles? That's my guess. I'd bet I'm close.
                       
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