Electric fuel pump

dcala84141 · Sep 13, 2020

Hi everybody
Where is everybody mounting there electric fuel pump on a 68 b body. I have a Holley electric fuel pump black it’s quiet large and instructions say to mount below and near the fuel tank.
There simply no area where this can b done without fabricating some weird bracket. Anybody have any photos of how there pumps are mounted

Ironbuilt · Sep 13, 2020

Inline on the frame rail.

66Satellite47 · Sep 13, 2020

Yes, that is what you want to do, make a bracket that is lower than the tank if possible. and with as close as possible, large suction line is very important, suction flow is critical to pump performance. The pics are my "over kill" setup to feed a 512 6500+ RPM motor. For something tamer I'd make the suction side line at least 3/8" and at or below the tank.
Edit: my tank is a fuel cell in the spare tire well with 2 cell outlets. Two #8 out of the cell, wye into fuel filter #10 into pump, #8 & 1/2" line up to firewall regulator. 140 Mallory pump.

Skytrooper · Sep 13, 2020

Maybe a slightly different beast, but I mounted mine to the 4x5 removeable plate on the right wheel well in the engine bay. It is below and slightly behind the alternator. I have a 71 b body, so hopefully you would have plenty or room. I couldnt find enough room along the frame rails either. I coonected it with a short piece of hose to the end of the steel input line. Works great !

dcala84141 · Sep 13, 2020

dcala84141 · Sep 13, 2020

Photo above is where my friend mounted his. He says it works great even though it looks to be above fuel tank and it’s mounted in front of car well beyond the 12” from fuel tank the directions call for

threewood · Sep 13, 2020

I built a mount that bolted the pump to the fuel tank hanger j bolt. Worked perfect. Made from a 3 bolt header flange.

Hey-O · Sep 13, 2020

To avoid the possibly of vapor lock, the fuel pump should not be mounted in or around the engine compartment, near exhaust system or any area that could get to hot. Mounting the fuel pump should be directly to the frame, when possible, to make sure you get a good ground. In my experience pumps don't like to suck, they want to push fuel. I would mount it anywhere as close to the tank as possible, even or below the bottom, on the frame. Just my opinion. Never did a mopar, but several other brands.

71Beeper · Sep 13, 2020

Threewood, your pump mounting bracket is an ingenious idea!
Kudo's to you! :thumbsup:

68BabyBlue · Sep 16, 2020

My '68 GTX has an electric Holley mounted in the trunk, inside the left wheel house. It's been there for over 40 years, and has always worked great. My buddy who sold me the car in 1983 had a father who was a machinist, and he fabricated a stainless steel base that was a truly professional piece. I'll try to get the a picture, don't have one now, cause I keep the car stored off-site. Set-up might not make sense for you, but it does illustrate a slightly novel location, that has worked well for many years.

MoparLeo · Sep 16, 2020

As said above and should be in your factory instructions, electric fuel pump are designed to Push fuel so should always be mounted at/near the fuel tank. As low as possible and still be protected and safe. Do not mount inside the trunk on a street car as a leak will be a catastrophic disaster waiting to happen.
There are many different ideas on youtube. Take some time and look at the different ways that it has been done and just use some common sense when you do it. Make sure to use good filters and inspect all lines and hose/clamps while you are at it.
Good idea to have a seperate power source than your ignition key. You can turn the pump off/on without the ignition activated. You can also hide the switch and have an effective theft prevention device.

747mopar · Sep 16, 2020

As low and as close to the tank as possible, like mentioned pumps don't like to suck. I'd recommend anybody installing an electric fuel pump to go the extra mile and use a return style regulator as well, more money but you'll eliminate a lot of the heat related issues by keeping the fuel constantly moving. I can't wait to do this mod to mine, although I've mostly eliminated the heat issues I still occasionally get a stumble after cooking the fuel at a traffic light.. hate it!

Budnicks · Sep 16, 2020

I don't have a photo of it currently
I have a Aeromotive S/S 14 psi pump, 6bbl set up
(along with a by-pass style regulator at the radiator support
by-pass reg. has a separate line from the reg.
all the way back to the fuel tank, into the sending unit)
has a 10 miron fiter up just before the carbs too

68 RR #36 479ci Fuel reg. front to engine rad ps.JPG

** you may have to modify the sending unit or tank etc.
depending on what size lines you use**
I used the sending unit, it's just a street/strip car, drag car in search of a corner

the Electric Fuel pump
is mounted on the inside of the rear p/s frame rail,
inside the P/S frame rail, the same side the org. fuel line went/routed down
not near any heat source
it's way below the sending unit pick-up in the fuel tank
it has a really good gravity feed
& draws really well, never any issues "yet"
it's on the inside portion of the rear frame rail
way down on the lower part as low as possible
right near the lower bend, where it starts to straighten out again
you can use a simple L-bracket or fab something up easily
but not so low, it's below the frame rail & a hazard

I mounted the rear canister style Aeromotive fuel filter
up in the 'shock well' just forward of the tank,
(it's where the rear seatback is the underside of the car)
it feeds the line to the pump after that... forward

Electric fuel pump

dcala84141

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Ironbuilt

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66Satellite47

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Skytrooper

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dcala84141

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dcala84141

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threewood

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Hey-O

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71Beeper

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68BabyBlue

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MoparLeo

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747mopar

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Budnicks

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