Fuel pump requirements for 5psi boost (carb'd 4a-c)?

[O 16581 72452 5]

As many of you have seen by my other post, i'm planning on a blow-through set-up for my 4a-c using what i thought was an Eclipse turbo, i come to find is a Starion turbo. Reguardless, i will be using this turbo, i'm wanting to know what i need to look for as far as a fuel pump. I'm sure the stock one won't be able to keep up, so i was considering perhaps an external fuel pump from a 305 (carb'd) Camaro.

Where is the fuel pump located on my SR5?

[|PuNiSh3R|]

It is mechanical.. and it would be located right on the engine.. driven by the camshaft.. You will want to remove it.. cut out a 1/4 thick block of aluminum or whatever metal you choose to cap off the hole.. Install a 4-7PSI external pump.. some where in the 35GPH range.. and install it right next to the gas tank so the tank basically gravity feeds right into the pump.. You will then want to put a return line .. a T in the gas line at the closest spot to the fuel in on the carb float bowl.. that will relieve you of any air that will form in the lines.. causing an otherwising troubling vapor lock in the line. You can then use a relay connected to the oil pressure switch on the block to trigger the pump when the oil pressure rises.. After that you will want to kick yourself in the ass for wasting your time and money on a single cam'd 4ac, specially one with a lot of miles on it and the fact that you will probably blow a compression ring or a valve seal.

[O 16581 72452 5]

Originally posted by |PuNiSh3R|
It is mechanical.. and it would be located right on the engine.. driven by the camshaft.. You will want to remove it.. cut out a 1/4 thick block of aluminum or whatever metal you choose to cap off the hole.. Install a 4-7PSI external pump.. some where in the 35GPH range.. and install it right next to the gas tank so the tank basically gravity feeds right into the pump.. You will then want to put a return line .. a T in the gas line at the closest spot to the fuel in on the carb float bowl.. that will relieve you of any air that will form in the lines.. causing an otherwising troubling vapor lock in the line. You can then use a relay connected to the oil pressure switch on the block to trigger the pump when the oil pressure rises.. After that you will want to kick yourself in the ass for wasting your time and money on a single cam'd 4ac, specially one with a lot of miles on it and the fact that you will probably blow a compression ring or a valve seal.

I love the encouragement you're giving me with this project.

[|PuNiSh3R|]

Just keepin it real my wigga

[Chris Corolla S]

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