Walbro 255 Fuel Pump
12-27-2003, 08:19 PM
#22
Senior Member
Join Date: Sep 2002
Posts: 2,550
You can wire them parallel off the stock wires in the tank and also T both fuel pump in to one line and use the stock fuel lines... This should be good to 500ish. If you want more then I would run separate fuel lines so you can move a larger volume of fuel and run one fuel pump to each fuel rail and T them back together in the FP Reg and run one return line back. This is how mine is hooked up. I use the stock fuel line and the stock return line to feed both fuel rails. One pump hooked up to each. Then out of the fuel rails to the Aeromotive FPR. Then I removed the charcoal canister in the rear of the car and flushed that line out and used it as the return line to the rear. You will need to get a bulk head fitting and hose to run from the charcoal canister line that ends near the diff and run it up to the gas tank and to the bulkhead fitting you install. Inside the tank, be sure to run another short hose from the bulk head fitting down in to the bottom of the tank. If you don't do this the return fuel will splash into the tank and put air bubbles in the fuel. This is bad.
12-30-2003, 11:08 PM
#25
Senior Member
Join Date: Jul 2001
Location: S. Florida
Posts: 629
Chris,
You really think the stock wiring can handle two pumps? I'm about to install a second Walbro in my tank to be on the safe side with new 850 primaries. I plan on teeing them together into one line for now. Someone had a pic of two Walbros arranged that way a while back, was that your pic?
You really think the stock wiring can handle two pumps? I'm about to install a second Walbro in my tank to be on the safe side with new 850 primaries. I plan on teeing them together into one line for now. Someone had a pic of two Walbros arranged that way a while back, was that your pic?
12-31-2003, 07:04 AM
#26
Senior Member
Join Date: May 2002
Location: St. Louis
Posts: 509
Originally Posted by Dragon' date='Dec 26 2003, 05:42 AM
The easiest way is to pull the relay out of the black box on top of the radiator (the fuel pump one). pop the black top off it and bend the little metal thingy so that the relay contact points stay connected all the time. Then just put the cap back on and plug it back in.. Walla 12v all the time.. if sombody want's to pop the top off and take a pic and post it I'll modify it and show you where to bend it at.
