Electric Fuel Pump

[international]

Where would I install an electric fuel pump? Would I have to disconnect the mechanical fuel pump, or can I leave it on the engine with the fuel lines bypassing it temporarily. What is the operating PSI or what pump should I go with? I am on a limited budget. Sorry for all the questions and THANKS for the help!

 

[hesutton]

Mount it near the fuel selector valve on the driver's side frame rail. Ditch the mechanical pump and put a big block chevy fuel pump block off plate over the hole in the block.

4-7psi would be fine. The Holley Red is a popular pump as it provides the proper pressure and has more than enough volume as well.

Also, search for electric fuel pump and you'll find pages upon pages on the subject.

Finally....wire it with a relay (a constant duty one...not a horn relay) and use an oil pressure safety switch with it as well.

Heath

 

[Agnem]

If you do the oil presure safety switch, be sure to put a bypass switch on it, so you can still use it to prime without engine operation when needed (changing fuel filters, etc).

 

[hesutton]

Opps, forgot about that important point Mel. Yup, I got that switch on a toggle for that exact purpose.

Heath

 

[forcefed]

all the points have been just about covered. I mounted mine right after the selector valve. I used a hot air gun to heat up the plastic line from the valve and slid in some of the old metal fuel line I cut to convert to rubber line. I then plumbed in my fuel pump and removed the mechanical pump and placed a big block chevy block off plate on. I used a holley red by the way. If you use a holley you need to be close as the fuel tank as these are designed for pushing fuel and not pulling. There are some better electric fuel pumps but I'm not sure what the names are off of the top of my head. Others will chime in. Also use the relays as stated above for safety. Hate to be in a wreck and have fuel blowing out everywhere.

 

[redneckaggie]

i run a procomp pump with the same specs as the holley and have no complaints so far. you can find them new real cheap on ebay

 

[sle2115]

I run a Carter, have been for 2 years or so with no problems. I ran the lines out of my selector to the passenger side, then converted to metal into a Perma Cool filter, then stainless braided pro flex all the way to the fuel filter head (a 7.3 unit) and it's worked great. I had one issue where I thought the Perma Cool clogged, but I've since began to believe it was actually out of fuel. I've had it die a couple times with just under 1/2 tank in the front tank, the last time, I raised the bed, pulled the sending unit and the tank had less than 1/2 inch of fuel...so I'm guessing I need to bend the float arm a little to correct. Anyway, the Carter is half the price of a Holley. Carter gave me mine to try on diesel after a design change and it's worked great. Part number is in my sig.