Electric fuel pump!!!

[74baggedbug]

3rd electric fuel pump just took a crap. Summit racing said the reason I'm burning them up is because my fuel cell isn't being fed from the bottom.. They say I need to run a sump from the bottom so that its gravity fed.. I've never heard of that excuse.. Any input I'm runnin a Mallory electric fuel pump to a carb'd 350 ... Thanks
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[MSHax]

It's true. electric fuel pumps are NOT happy about dry runs. You need to fix that asap or you'll keep burning them out.

Source: Me~25 year veteran of racing, and hatter of mechanical fuel pumps.

[74baggedbug]

Any idea of where I could get a fuel cell made? Thanks
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[Ol Blue K20]

Every fuel pump I'v ever had said in the instructions "pump must be lower than tank outlet" They are designed to push not neccessarily pull. If you are below the out let they pull long only long enough to create a siphon to feed the pump. So on that theory the lower the better. Also the shorter the hose from outlet to pump the better. So a top outlet isn't the problem normally. lots of people run elec pumps from stock tanks all the time. So close to outlet as possible and as low as possible. Hope this helps

[MSHax]

if your's fits where you want, just modify it. You can get a kit and weld it on. Hate to promote summit, but here's a link to the kit. Jegs will have it too, but I'm currently shopping on summits site for fuel line.

If your current one is plastic then you'll be looking at swapping it out. If you're looking for a custom one, I've had a couple made by fuel safe, but they get pricey. No real reason to re-invent the wheel though since there are a lot of options for these trucks. I'm actually installing a 69 camaro tank this weekend in my 70 c20, so many options.

[MSHax]

Ol blue is right, the pick up doesn't need to be at the bottom, a top pick up is fine as long as the pump is lower than the tank. Think of it as a straw in a cup, you can drink your drink, but you need to move the straw around and/or tilt your cup when it gets low. Now imagine if that straw came out of the bottom of your cup, you're drinking every last drop, and never getting a dry drink. If you're looking for a guaranteed way to prevent dry pumping then do a sump pick up, point it towards the rear so that when you are moving forward it pushes the fuel into the sump. The only way you'll burn out an electric pump that way would be if you just repeatedly ran out gas (but at that point you deserve it).

[stevencvn72]

I agree with all the above. I'm running a Carter electric pump mounted on the frame rail with an original pick up and tank for 4 years now with no problems. This is running 40 lbs of pressure. Before the first start up, I put a couple of drops of oil in the pump and did the best I could to prime the line to the pump. Never had an issue, but I never let it go below a 1/4 tank for fear of cavitation and burning up the pump.

[stevencvn72]

Here's a link to a thread I started when I was trying to figure things out. A couple of folks put up some pictures of how they were drawing from their tanks.

http://67-72chevytrucks.com/vboard/s...d.php?t=323887