Electric Fuel Pump
#2
#3
fuel pumps
years ago i had a 1/2 ton studebaker with a 259 v8 i hauled a lot of weight all the time and the manual pump wouldnt keep up so i added a electric pump from a mazda rx7 when i needed more fuel i just turned it on it helped a lot the mazda pump is a electronic pump it doesnt take a lot of power to use it .hook up the electric pump behind the manual pump but use it only when you need it
#4
My "Facet" brand electric fuel pump works great.
My "Facet" brand electric fuel pump has worked great for many years. On three vehicles, I've got about 200,000 miles total on three different pumps. None required a pressure regulator. Make sure your needle and seat are in good shape.
For the truck, my tank must have some junk in it, because the stock mechanical pump (new) still couldn't get fuel to the carb at times. It would run fine, then quit at completely random times. The electric pump also improved the "heat soak"/vapor lock problem I would get after climbing serious slopes in colorado, or top speeds on the freeway (75 mph up hill), with the issue surfacing when getting off the highway and slowing down. (altitude 7,000 ft +) At this time, I am pushing the fuel to the stock pump from the electric mounted below the driver seat.
Mount the pump with flexible pads and a separate ground. I only turn the pump on when getting off the freeway, on steep grades and when the random issue bites me. (Edit: Still working 2020-07-21, with only the electric pump, I removed the mechanical one back in 2007 or so.)
1972 3/4 ton Camper Special
For the truck, my tank must have some junk in it, because the stock mechanical pump (new) still couldn't get fuel to the carb at times. It would run fine, then quit at completely random times. The electric pump also improved the "heat soak"/vapor lock problem I would get after climbing serious slopes in colorado, or top speeds on the freeway (75 mph up hill), with the issue surfacing when getting off the highway and slowing down. (altitude 7,000 ft +) At this time, I am pushing the fuel to the stock pump from the electric mounted below the driver seat.
Mount the pump with flexible pads and a separate ground. I only turn the pump on when getting off the freeway, on steep grades and when the random issue bites me. (Edit: Still working 2020-07-21, with only the electric pump, I removed the mechanical one back in 2007 or so.)
1972 3/4 ton Camper Special
Last edited by 1972-34ton; 07-27-2020 at 06:25 PM. Reason: Experience.
#6
I have a Holley Red pump and a 460 with a 750cfm with no problems except for the buzzing noise cured with a lil more rubber between it and the frame rail. Most electric pumps need to be mounded close and below your fuel source. Their better pushers than pullers which leads to early failure most of the time when mounted in the wrong place.
#7
Have any of you running electric pumps installed an oil pressure safety switch or an inertia switch to kill the pump in case of a wreck? I have a puralator pump I'm going to install and it recommends the oil pressure safety switch. I was wondering if it's a complicated install, definitely makes sense from a safety stand point.
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#8
Got a '69 390 2bbl auto, and like the previous post, was having trouble with the crud in the tank causing probs.
Went electric a while back, added another in line fuel filter and have been trouble free since. Also have a cutoff switch wired into the pump for safety & security reasons.
bryyce62
Went electric a while back, added another in line fuel filter and have been trouble free since. Also have a cutoff switch wired into the pump for safety & security reasons.
bryyce62
#10
Join Date: Mar 2003
Location: Phoenix Az, by way of Fre
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I'm running a Holley red.
390, stockish rebuild and Holley 500cfm 2bbl.
It's installed on the frame rail under the tank.
Only time I hear it is when I key on... once the motor is running it's not audible.
Only thing I had to get used to was to pump it prior to turning the key to on. Seems pumping with the added fuel pressure will flood it more easily.
Other than that user error, I have no complaints.
390, stockish rebuild and Holley 500cfm 2bbl.
It's installed on the frame rail under the tank.
Only time I hear it is when I key on... once the motor is running it's not audible.
Only thing I had to get used to was to pump it prior to turning the key to on. Seems pumping with the added fuel pressure will flood it more easily.
Other than that user error, I have no complaints.
#11
............I'm also running the Holley "Red" electric pump . My 77 Hiboy has the incab tank which provides very good , strong positive fuel flow for an electric pump . I mounted my pump on the frame rail directly Under the Tank. Then ran fuel line up to the leftside , galvanized inner panel thru a fuel regulator then to the carb. I also installed a "T" just below the Input of the regulator and ran a 5\16th's ....Return.... fuel line back too the top of the fuel sending unit on the tank . There , I drilled a "hole" (in the round housing of the in tank sending unit) , installed a 90 degree brass fuel fitting and installed a 1\4 inch outlet that squirts excess fuel back INTO the tank . This way the Pump is cooled by a circular flow of fuel . I have my regulator set at 7 psi as the Holley will pump at 15 psi if Not regulated . I've never had a problem with fuel supply even in the Hot texas Summers . sk
#12
#13
no regulator
I have had the Holley Red pump on my 390 for about a yr now with no problems. the book on it says it will pump 6-7 lbs, so I dont have a regulator on it. I have it mounted on frame rail under in bed tank, using rubber cushions on bracket between it and rail to cut down on vibration and noise. I had taken the mech pump off and fabbed up a chrome cover for it. When I installed new cam I also left the concentric cam off that runs pump arm.
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