setzep

What are those valves by the gas tank for? One is connected to the charcoal canister and the other is inbetween the fuel pump and the hardline that goes to the front of the car.

I'm cerious because I just ripped them out hehe

dbb280zx

Those were the fuel cut valve (supply side) and a check valve (charcoal canister). You may notice a fuel smell outside of your car from loosing the check valve. You may experience an unpleasant gas leak and explosion after an accident from loosing the fuel cut valve. Have Nice Day!
Denni§

setzep

LOL, no really I just took them out to sandblast under my car so I can re-undercoat it along with getting rid of that storage bin rust. Along with those two valves I took the rear end and gas tank out. But really I don't know if I'm going to be able to use those valves anyways because I'm doing a T2 swap and might have to cut a hole in the tank for a larger fuel line anyways. I don't know if the little 5/16 (?) line will be able to keep up with my fuel demands with out causing too much of a pressure drop. Have any input or sugestions?

dbb280zx

actually, the fuel flow through the line is the same, but it is under much more pressure. You will still need an inertia fuel cut valve and the check valve from the charcoal canister. The easiest way to convert to fuel injection is to remove the stock fuel pump and put a check valve in its place. you then put your high pressure pump in the engine compartment at the end of the supply line. This makes your old supply line the suction line for your pump and it wont be damaged from the high pressure from the new pump. on the pressure side of the pump run high press. fuel line to where it normally hooks to the 13b. The old return line is still used for return on the new system. It is low pressure. Feel free to ask any questoins.
Denni§

setzep

The fuel flow will be greater because of the extra fuel that a 375hp 13bt needs, don't you think?
Why would you put the high flow-pressure pump under the hood?? You would have that much more length of suction line that you would be working against you. (its' a lot easier on a pump to have more pressure after than it is to draw more vacume before)
I don't think that the tubing will get damaged by running higher pressure in it. (forgot to mention that I've got a fuel line from a -se that's a little larger than the 12a '83 one thats in there now that I may use)

What does the inertia fuel cut valve do exactly?

I do agree with keeping the check valve for the charcoal canister though...

I was thinking of routing the fuel system like this, tank-----pump------filter-----fuel rail-----regulator------tank.

What do you think?

dbb280zx

I didn't know your fuel system was from an se. If so you can do as you said.
Denni§