Another ELECTRIC FUEL PUMP help thread. Kill me now.

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Shainesboostin

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Hoping to have my Magnum swap (5.9) done in my 70 Dart in the next couple weeks. This is a huge learning experience for me. Its a stock 5.9, headers, 750 eddy carb, airgap manifold, 3.55 gears. Anyways, I have no idea how to select a pump, and or how to run it. I see alot of people run holley blue pumps. But, im unsure of how many GPH I really need. If someone can help me out id appreciate it.
 
-- Hoping to have my Magnum swap (5.9) done in my 70 Dart in the next couple weeks. This is a huge learning experience for me. Its a stock 5.9, headers, 750 eddy carb, airgap manifold, 3.55 gears. Anyways, I have no idea how to select a pump, and or how to run it. I see alot of people run holley blue pumps. But, im unsure of how many GPH I really need. If someone can help me out id appreciate it. --
-- Use a mechanical pump. They are available in various GPH ratings. Sounds like a stock pump will do it.
 
A mechanical pump would require taking the front cover off. Plus a pump eccentric bolted to the end of the cam. The Holley blue would be Plenty of pump.
 
Carter HP4601 and a return regulator with a return line.
 
[QUOTE="vitamindart, post: 1971398080, member: 15010" -- ]A mechanical pump would require taking the front cover off. Plus a pump eccentric bolted to the end of the cam. The Holley blue would be Plenty of pump. -- [/QUOTE] -- Sorry - I guess that, I'm not familiar with that motor.
 
as hard as it is - make sure you follow the directions when you're installing it.. there is no mystery to electric fuel pumps...
 
I'm trying to run the stock fuel tank. Also, debating if I need a return line. It's an eddy carb, so I believe I need just 5psi.
 
A holley red pump located as close to the tank as possible will work great. If you upgrade to the blue same deal, mount as close to tank as possible as they push better than pull if you use a blue pump be sure to put reguulator in line and set to 6-7 psi and forget about it. No return line needed for what you're doing.
 
Ok. I think eddy carbs are low pressure. Like 5-6 psi. Gonna keep stock tank. Not sure about the fuel line yet.
 
[QUOTE="vitamindart, post: 1971398080, member: 15010" -- ]A mechanical pump would require taking the front cover off. Plus a pump eccentric bolted to the end of the cam. The Holley blue would be Plenty of pump. --
-- Sorry - I guess that, I'm not familiar with that motor.[/QUOTE]

Yeah the Magnum engines have no provision in the timing cover for a mechanical fuel pump.
 
I'm trying to run the stock fuel tank. Also, debating if I need a return line. It's an eddy carb, so I believe I need just 5psi.

The return line isn't about the pressure. It's about keeping cool fuel at the carburetor and relieving some stress on the fuel pump. With ethanol swill, it also helps greatly with drive-ability.
 
I would 100% run a return style regulator. As mentioned above by RRR it keeps the pump cooler, and keeps the fuel from cavitation.

Another thing to consider with a stock tank, is that a rotor/vane style pump is not Optimal for pulling fuel UP and out of a fuel tank. Between that statement, and the 10 guys who will jump on here and tell you "no return is fine" you're on the verge of a holy war of opinions.

just remember there is a right way to do it, and a way that some make it work.

Pumps

This is the least expensive one i'd trust, if you're looking for something inexpensive. Yes it's offshore, but had decent luck with them so far.
TSP-JM1044 Performance Electric Fuel Pump. 155 GPH 3/8 NPT Inlet. 14psi

Here is the next bump up in alleged quality.

blue/red pump
Electric Fuel Pump Holley Performance 12-812-1 - Pace Performance Parts
Electric Fuel Pump Holley Performance 12-801-1 - Pace Performance Parts

This is about the cheapest return-style regulator we have.
Fuel Regulator Mr. Gasket 2015 - Pace Performance Parts

and a holley return style
HP Billet Fuel Pressure Regulator Holley Performance 12-841 - Pace Performance Parts

I have $38 billet dead head regulators too...but i really don't want to see you run on if you see street use.
TSP-JM1057R Performance HP Billet Fuel Pressure Regulator Red/Clear Anodized. 5-12 PSI

5% off retail, just let me know. hope it helps either way.
 
Has anyone done this with a stock tank? I dont have the ability to add a sump. I believe stock line is like 5/16ths. Thought id go up to 3/8. Any recomendations for line? Honestly will be line and hoses. Not AN fittings and all that. Speedway motors is local to me. Have a Holley blue and regulator on sale for like 130$. Hopeing to get it next weekend. Just trying to do with the lines. As far as I know, a return line isnt really an option for my stock tank and what not.
 
I ran a Holley blue pump for years, 3/8 line. The pump was mounted in front of the axle where the floorboard kicks up behind the back seat. Never had any issues with it dead headed. Right or wrong? I don't know but it worked great.

Btw make sure to use a relay and large enough wire to the pump. I always run a ground wire along with the power wire, don't care for chassis grounds.
 
I ran a Holley blue pump for years, 3/8 line. The pump was mounted in front of the axle where the floorboard kicks up behind the back seat. Never had any issues with it dead headed. Right or wrong? I don't know but it worked great.

Btw make sure to use a relay and large enough wire to the pump. I always run a ground wire along with the power wire, don't care for chassis grounds.

Gonna by the Holley blue and regulator and 3/8 aluminum hard line. However, I cant afford all the AN fittings and what not. Think I could just flare the ends of the aluminum line and run rubber fuel line as needed?
 
Has anyone done this with a stock tank? I dont have the ability to add a sump. I believe stock line is like 5/16ths. Thought id go up to 3/8. Any recomendations for line? Honestly will be line and hoses. Not AN fittings and all that. Speedway motors is local to me. Have a Holley blue and regulator on sale for like 130$. Hopeing to get it next weekend. Just trying to do with the lines. As far as I know, a return line isnt really an option for my stock tank and what not.

Yes.

1/2" line. Why spend the money and run 3/8". Run 1/2" and be done with it. It can't hurt you so I would go that way and they sell new 1//2" sending units. changing the line size without changing the outlet of the tank is useless.

AN fitting can be added at any time. There aren't many of them from tank to carb though. You're talking maybe 50$.




I ran a Holley blue pump for years, 3/8 line. The pump was mounted in front of the axle where the floorboard kicks up behind the back seat. Never had any issues with it dead headed. Right or wrong? I don't know but it worked great.

Me too. No problem.
 
Gonna by the Holley blue and regulator and 3/8 aluminum hard line. However, I cant afford all the AN fittings and what not. Think I could just flare the ends of the aluminum line and run rubber fuel line as needed?

Yes you can use rubber but I'd bend my lines to use the least amount possible. When I'm going to use a rubber hose on a metal line I put the line in the flaring tool like I was going to make a double flare and use the double flare die to put a bulb on the line. Just enough to keep the clamp from slipping over.

My Dart went high 6.50s in the 1/8 with a steel 3/8" line that followed the factory path and the pump set up mentioned in my previous post.
 
Well, decided to get a holleys blue with a regulator. And 3/8 line. However my sending unit is just 5/16. Was wondering if there is a 3/8 sending unit available?
 
There are, but I'm not up on where and who makes what.
I just drilled the plate in my sender and added a nipple for the connection.
It's not hard at all to remove the original 5/16 nipple and make a new pickup tube on the original sender.
A piece of all thread copper pipe and matching nuts, a compression union and some aluminum tubing does it, but remember it needs to be fuel proof where the new larger line goes through the sender body.
I used 3/8 nylon12 fuel injection line I heated the end to make it melt a little so it created a ridge on the end for transitioning to rubber EFI hose at the tank and carb.
Using the new 3/8 nylon for the feed, and the old steel line for the return.
My fuel pump is a 7PSI Carter High flow/low pressure rotary pump so when I T'd off the inlet at the carb for the return I put an orifice in the return and the pressure was darn near right where it needed to be, so I didn't need the regulator.

It's still sitting here just in case. :D
 
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No LA case.

20161005_183113.jpg
 
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