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914World.com _ 914World Garage _ V8 fuel lines. How to connect it all.

Posted by: Dr. Roger Jul 17 2005, 10:57 AM

from the fuel tank I've got 2 fuel lines. I dont understand how to connect it all.

the new elect fuel pump has an input and an output. at the engine bay there looks to be 2 fuel lines coming from the fire wall.

where does everything go? =-)

when i broke it in on the bench i just ran 1 line from the temp fuel tank to the inlet of the pump.. the pump to the carb and that was it.

i dont understand what the second fuel line is for. sorry 4 the simple questions........

Posted by: ! Jul 17 2005, 11:03 AM

FI uses a return line to the tank...plug the little one.

Posted by: dwillouby Jul 17 2005, 04:19 PM

When I built my V8 conversion I removed all the original plastic lines. I ran one 3/8 metal line in place of the two plastic lines. I connected the two outputs from the Fuel tank together and ran that to the input of the fuel pump located on the front bulkhead. I then ran one line from the output of the pump to the new metal line back to the motor.
David

Posted by: snflupigus Jul 17 2005, 04:33 PM

Not all FI uses a return.... (new GM LS-engines don't) but most in the past have.

Posted by: neo914-6 Jul 17 2005, 05:44 PM

QUOTE (Manfred Z @ Jul 17 2005, 09:03 AM)
FI uses a return line to the tank...plug the little one.

A fellow V8 converter had so much problems with fuel starvation at races he thought it was a FI problem and reverted to carb. Comes to find out the guy who worked on his tank plugged the larger diameter fitting!