Electric Fuel Pump

[Jefe]

I have never run one of these before...but I am pretty sure I will need to with a new motor I am workin on. I would need to mount it close to the tank, do I splice into the metal fuel line with rubber? also...I need a fuel pressure regulator with this right to keep the psi to the standard range around 7 or 8 right? I would want to wire it straight to the fuse box, and make it hot only when the key is on and then just a ground right? How have you guys done this...thanks again!!

[guitarman]

You prety much summed it up. I would splice it in with rubber fuel line close to the tank as they push fuel better than they pull fuel. Ground it to the chasis and put a 30 amp relay between it and the fuse panel. In other words let your lead from the fuse panel power the relay to turn the pump off and on. Oh yea, you should use a fuel pressure regulator. Holly comes to mind. Try http://www.summitracing.com/

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[This message has been edited by guitarman (edited April 29, 2002).]

[chaptr2]

I am in the process of putting the BG220HR pump in. Try to put it as close to the tank just like guitarman said. I would also think about using a relay for the fuel pump. It will be on constantly and you wouldn't really want to risk blowing the fuse all the time or frying the wires. Painless and other manufacturers make these relays for electric fuel pumps.

You will need a regulator to regulate it to 7 psi anything past 7 will blow by your needle and seat in the carb. If you are also going to drag race this, you can only run 12 inches of rubber fuel line. You can run more of the REAL steel braided rubber line with out a problem. I have used the summit cheapy that comes with a regulator and it took a dive in less than a month. Now I didn’t put it close to the tank and that may have been the problem, but I wouldn’t even consider recommending it to anyone. I took it out and used the Edelbrock manual fuel pump until I could get around to installing the BG fuel pump.




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Supercharged 388 stroker in a
70 GMC Shorty step side
72 K/5 Blazer

[Longhorn Man]

Why don't you want to run a mechanical pump?

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'69 G.M.C. 350/350. Trying to clean up the left over damage from the Dope-Smokin-Old-Man
I've been dubbed the Longhorn Freak/Fanatic/Expert, I just hope I can live up to it.
FINALLY got the HORNIAC...a '70 one ton Longhorn with a Pontiac 350/350 and lots of 'personality'. Check out The Longhorn Webite.
If you need a pic posted, E-mail me at longhornmail@yahoo.com
Andy, in Columbus Ohio

[Jefe]

I would love to run a mechanical pump...but I don't want to starve my motor for fuel. Here are the specs, small block 400 bored 60 over, (which I think technicaly makes it a 412), polished cast crank, Keith Black Hypereutectic Pistons, 5.7 rods out of a 350, 2.02 intake 1.60 exhaust, stainless steel, 284 comp cam, 502 lift I believe, Edelbrock Victor Junior, Holley 750 carb. I don't know if I need a electric pump or not...was just thinking about running a Holley high volume mechanical pump...but not sure.

[Low69CST]

Jefe, your motor sounds just like mine, intake cam and everything except mine is .030 over with a special crank. I bought just a high volume mech. pump. I figured if this pump doesn't pull enough gas then i'd buy a speedway pump. They run those on 850 hp. Nascar motors so i know those will pull enough.

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'69 CST Short fleetside
Lowered, 400 small block, 700R4, 3" dual exhaust, 40 series Flowmasters, 4 wheel disc brakes, all stainless hard and flex lines, front & rear sway bars, Dana 9 1/4" rear end 4.11's w/Detroit Locker, soon to have 18" rims
Not my daily driver. More like my weekend A$$ KICKER.
See my truck at: http://www.geocities.com/low69cst/
Future Automotive Engineer attending the University of Kentucky.
Feel free to message me on AOL, SN- SS95ZQ8
My Dad's projects:
72 Short Fleet 4x4 Chyenne Super
72 Long Fleet 4x4 Chyenne Super
Both 350 autos restored original

[bigjimzlll]

if your running an edelbrock carb, you'd better keep the pressure to 5.5

[Longhorn Man]

In reality, you might be able to do that with a stock pump. But I wouldn't bother. Just get a high flow mech pump. Less headache, and less hazard.
If you do decide to go ahead with the electric one, don't forget the shut off if you go to race it. NHRA rules dictate a switch to kill the pump.

------------------
'69 G.M.C. 350/350. Trying to clean up the left over damage from the Dope-Smokin-Old-Man
I've been dubbed the Longhorn Freak/Fanatic/Expert, I just hope I can live up to it.
FINALLY got the HORNIAC...a '70 one ton Longhorn with a Pontiac 350/350 and lots of 'personality'. Check out The Longhorn Webite.
If you need a pic posted, E-mail me at longhornmail@yahoo.com
Andy, in Columbus Ohio

[chaptr2]

You won't run out of fuel with that set up. Not that it isn't a good set up because it is, but a mechanical pump will work, just fine for that. My friend has a 400 bored .060 (413) rounded up and he runs a mechanical pump with no problems. The only reason I am using a electric pump is because I'm running a supercharger and I do run out of fuel.

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Supercharged 388 stroker in a
70 GMC Short box stepside
72 K/5 Blazer

[1-PU70]

One more note wire it through an oil presure switch so it wont run without oil presure.

[71BBK10]

also if you get elec. be sure to put a filter before the pump, unless you like dropping $70 or $80 bucks every so often to buy a new one