New Fuel System Setup
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Car: 1984 Pontiac Trans Am
Engine: LG4 305 V8
Transmission: 700R4
Axle/Gears: 10-bolt LSD
New Fuel System Setup
I am getting ready to upgrade my fuel system to something a bit more reliable and that can handle the volume that a future 383 will require. Here is my current setup:
84 T/A, carbureted with no in-tank pump as far as I know
Mechanical pump on the block with return line
Edelbrock 1406 carb with single input
Yeah I know, the carb sucks. It was on there when I bought the car. Anyways, here is what I am currently thinking:
1. Close to the tank, flare and tube nut the hard line.
2. Hose goes to 40 micron inline filter (stainless screen style)
3. Filter goes to Carter electric pump P4600HP
4. Hose from there to tube nut on flared hard line
5. At the engine side, cut off and flare fuel line, then tube nut.
6. Hose to Aeromotive fuel filter (10 micron element style)
7. Coupler to Aeromotive regulator, no return style, twin outlet.
8. Plug bottom outlet, one hose to current carb
The goal here is to make the fuel system easier to work on, more reliable, and replace worn out components. I think it should work ok, as:
- The filters are in the right order. A mesh screen protects the pump, while a better filter protects the regulator and the carb. The regulator will compensate for any pressure drop caused by either filter.
- Apparently Carter pumps are OEM quality, and this one is rated at 100gph, plenty for my 425HP 383 block.
- I didn't want to run new hose or hard line for the entire car, or mess with the pickup if I didn't have to. I think the current 3/8 tube is big enough for future fuel requirements.
- I though the return style regulators were expensive and would overly complicate the routing. I wouldn't be heavily against it, but I wanted to avoid an octopus of fuel lines if possible.
- I did not spec in a fuel cooler, has anyone installed or used one? Seems like a good idea to run the fuel through a cooler in front of the radiator right before it goes into the carb.
Your comments welcome, thanks for any advice.
84 T/A, carbureted with no in-tank pump as far as I know
Mechanical pump on the block with return line
Edelbrock 1406 carb with single input
Yeah I know, the carb sucks. It was on there when I bought the car. Anyways, here is what I am currently thinking:
1. Close to the tank, flare and tube nut the hard line.
2. Hose goes to 40 micron inline filter (stainless screen style)
3. Filter goes to Carter electric pump P4600HP
4. Hose from there to tube nut on flared hard line
5. At the engine side, cut off and flare fuel line, then tube nut.
6. Hose to Aeromotive fuel filter (10 micron element style)
7. Coupler to Aeromotive regulator, no return style, twin outlet.
8. Plug bottom outlet, one hose to current carb
The goal here is to make the fuel system easier to work on, more reliable, and replace worn out components. I think it should work ok, as:
- The filters are in the right order. A mesh screen protects the pump, while a better filter protects the regulator and the carb. The regulator will compensate for any pressure drop caused by either filter.
- Apparently Carter pumps are OEM quality, and this one is rated at 100gph, plenty for my 425HP 383 block.
- I didn't want to run new hose or hard line for the entire car, or mess with the pickup if I didn't have to. I think the current 3/8 tube is big enough for future fuel requirements.
- I though the return style regulators were expensive and would overly complicate the routing. I wouldn't be heavily against it, but I wanted to avoid an octopus of fuel lines if possible.
- I did not spec in a fuel cooler, has anyone installed or used one? Seems like a good idea to run the fuel through a cooler in front of the radiator right before it goes into the carb.
Your comments welcome, thanks for any advice.
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