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Electric fuel pump conversion
https://slantsix.org/forum/viewtopic.php?t=34693		 Page 2 of 2
Author:  slantzilla [ Sun Apr 12, 2009 8:56 am ]
Post subject: 
A Holley blue pump and regulator can be set from 1-14 psi and do not require a return line.

Carter makes a nice 5 psi street pump that does not require a regulator at all.

You can get a 3 pole oil pressure switch for a late 70's Slant. It was used to control the electric choke. You can use the OP pole for either your light or an ignition kill, and the choke poles can control the pump.
Author:  Shaker223 [ Sun Apr 12, 2009 9:35 am ]
Post subject: 
The Carters are good pumps. I've gone 12's with them with a 383 and a TQ.
Author:  kipamore [ Sun Apr 12, 2009 11:22 am ]
Post subject: 
Not that this is scientific, but I used both the $80 Carter and the $80 Holley red pump on my lard bus. The Carter burned up in a month or so, I have 60k on the Holley with no trouble. That's my 2¢.

Kip On Truckin'
Author:  Matt Cramer [ Sun Apr 12, 2009 5:35 pm ]
Post subject: 
"Deadhead" regulators (those without a return line) drive up the pressure, which reduces the pump's flow rate and put more strain on the pump. Whereas with a return type, you don't see any more pressure at the pump than the pressure at the regulator and the extra pressure needed to push the fuel through the lines. Here's an example of how the pump flow changes with pressure:

Image

That's the pressure at the pump, not the pressure at the regulator. A deadhead regulator pretty much drives the pressure up until the flow is low enough. Using the pump in the above example with a deadhead regulator would be a very bad idea, but it's perfectly safe to use with a carb if it has a bypass regulator. (The pump in the above example is a good deal larger than what you'd need on any known slant six...)
Author:  Dutch Dart GT 64 [ Wed Apr 10, 2024 12:27 pm ]
Post subject:  Re: Electric fuel pump conversion
sorry for kicking up an old topic, but am I correct, if I want to use an electric fuel pump then:

1: I install it near the tank
2: the pump should operate at low pressure; is a pump with 3.19 psi to 5.51 psi enough or too much? (e.g. this one; https://www.autodoc.nl/ridex/8056266) and then I don't need a return fuel line to the tank right?
3: the wiring is one from ignition, and one grounded.
4: taking out the old mechanical pump neccessary or not? if so, are there standard metal plates available to replace the mechanical fuel pump?
5: does someone have a howto or scheme how to install a cut off switch or something that prevents fuel from being pumped when the car breaks down or in case of an accident?
Author:  volaredon [ Wed Apr 10, 2024 3:17 pm ]
Post subject:  Re:
Quote:
I actually just installed an electric fuel pump on my 87 d150 today.
I think they are nice to have. Easier to replace too compared to a mechanical pump.
in this case yeah.
but compared to a newer modern in tank pump, for ease of replacement when needed, given a choice between replacing the in tank one and a mechanical one on the side of the engine I'd rather unbolt 2 bolts on the side of the engine, slide old one out and new one in... instead of having to drop a tank or take off a truck bed anyday/ since the in tank electrics never seem to die when the tank is near empty.
Author:  SlantSixDan [ Thu Apr 11, 2024 1:36 pm ]
Post subject:  Re: Electric fuel pump conversion
Quote:
I've been tossing around the idea in my head to install an electric fuel pump with a fuel pressure regulator with the Holley 1920 I'm running now
1. Why?
2. Read this.
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