I want to run a dual Fuel system on my Hatch, Stock tank with a walbro then a 1gal fuel cell in the back with a inline pump that i can just put race gas in So what kinda cheap Ideas do you guys have for switching between the 2? I dont really want to run 2 fuel rails/injectors and probably just a single return line back to the stock tank.

 

How much money do you have? The sort of flammable liquid approved solenoid valves that would allow you to switch between fuel supplies are expensive. Also, how much power are you really expecting to make on the street??

 

here you go. you will need 2 of them. one for your feed and one for your return. you will also need a switch to change between two different pumps.

 

I was thinking more along the lines of a mechanical valve to close off the stock lines back to the pump and then a 2nd relay for the inline pump on a switch. But If i do that and use the stock return line will the fuel cell drain back into the tank pretty fast? I dont expect to make much power i just want to drive 30mins to the track switch to race gas race then drive back home on pump gas.

 

did you forget a link or something :P

 

yes i did. it was 4am and i could sleep.

http://www.aircraftspruce.com/catalo...elselector.php

 

God dam that thing cost more then my car.

 

there are lots of types out there and im sure you could find one cheaper. it was more just to show what you will need

 

Find a old ford truck with dual fuel tanks and study there desing. Then take the parts off the truck and put them on the civic.

 

Go to a parts store tell them you want a 6-port 1-wire fuel switch valve. If my memory serves me right from old parts selling days Neihoff UN52 would work. Or if you want the fuel level senders to switch use the four wire 6-port part number UN54 or equivalent. These universal switch valves usually come with the wiring and fuelline diagrams.