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Old 01-13-2020, 11:07 AM
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Adding Fuel cell for SBC with carb

I want to run a 2 1/2 gallon fuel cell that will be placed in the open space on the other side of the battery in the engine compartment(for 110 octane to run with nitrous). I will be running a Carter p4594 fuel pump for this fuel cell and a mechanical that I have or a electric if I can't use a mechanical for the regular fuel tank . I was going to run these both to a T right before the carb . Do these have to be run separately and not both together with my carb.(pressure problem) I have a gauge and would know quickly no matter what I did , but saving time is OK also, anyone with experience with something like this.

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Old 01-13-2020, 11:41 AM
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Normally, a much smaller one gallon cell is mounted in the engine compartment, plumbed through a pump and on/off switch which is manually controlled by the driver, then to the nitrous jet/jets which would be mounted in the intake manifold. It is a completely separate system from the one which normally drives the motor.

I would be hesitant to put the amount of fuel in front of the firewall that you're thinking. I would also build the mounts for the fuel cell as strong as Fort Knox. You don't want the cell to be rattling around under the hood from a fender bender. Please think about what you're doing seriously, this could be a life/death idea. For instance, use ONLY stainless braided lines, securely mounted so they cannot flop around. On a dark night or in a closed garage, have a buddy shine a flashlight into the engine compartment while you look for light while sitting in the car. Fuel must be kept out of the driver's compartment at all costs by filling all holes or cracks with metal or fuel resistant material. Round holes can be filled with a flat washer on each side of the hole with a screw and nut through the center of them and epoxied so they don't move around.

Last edited by techinspector1; 01-13-2020 at 11:46 AM.
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Old 01-13-2020, 09:08 PM
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The cell is 2 1/2 gallon but I can put any amount I want in it , I will be using a electric shutoff valve that I'm using now for the return line on my regulator that goes back to my main tank To shut down the mechanical or electric that is for the big tank. so it will be just be running the carter P4594 fuel pump on the cell . I don't like it on the back tank that it is on now , to many bends and and to long for the fuel line size. Putting it right next to the cell and regulator with larger plumbing would make it work as efficiently as possible . Thanks for the response.
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