stock tank electric pump

[daredevil]

If anyone has used a stock tank and electric pump post a few pics of routing and install. looking for ideas. Also did you drill the tank for a return line. My 66 only has an outlet on the float assembly into the tank. thanks. Been outside working on it and have a new plan and would like some input. What if I drilled a 3/4 inch hole and used a 1/2 inch fuel cell bulkhead fitting so my pickup would be off the side of the tank and then i could use the 5/16 line as the return. anybody see a potential problem with this?. i,ll be running a cannister filter next to the tank. then the 140 mallory comp pump. this way i can run solid 1/2 inch aluminun line from the pump to the regulator.

 

[daredevil]

bump added some stuff

 

[69 Runner]

You could always get a new sender that has a 3/8 feed with a 1/4 return already in it. I've seen a lot of electric pumps mounted on the inside if the passenger's frame rail, right at the top of the arch (over the rear).

 

[Don Gould]

Mallory 140 pumps are not a positive displacement pump same as all electric pumps so they will not efficiently draw uphill, you'll lose about 20-30% of the pumps potential.
The bulkhead is a good plan but be sure and keep your tank full if your going to the track. A low fuel level will cause the pump to suck air in tight turns, WOT and on the brakes which will greatly reduce the life of the pump, they don't like to run dry.
A sumped tank is the best way to go. Hopefully you are running the recommended filter for the pump and not one of those HP1 chinese copies. We always recommend you run a bigger inlet than outlet, I believe the 140 calls for a 3/8 out so use a 1/2" or bigger inlet to the filter the line will work as a reservoir to help keep fuel supply to the pump. All plumbing need to be as per Factory pump specs no matter whose pump it is, the only place you should ever run a larger line is for the gravity feed supply line and that can be as big as you want.
Never use a Cast 90* or 45* adaptor fitting in a fuel system, those are high pressure low volume adaptors, fuel systems are low pressure high volume.

 

[terzmo]

well....I posted a pic of mine on A bodies and got criticized for the location....above the tank..."won't work"....too much rubber..."won't pass tech inspection" and in the trunk..."not a good idea"

This particular pump came with the car and I'm amazed how quiet and how well it works now for over 3 seasons. First electric I've had and I'd say whoever makes it; makes a damn good pump

 

[bigmanjbmopar]

I was using one for a minute, had it mounted on the frame rail rear just sat below the tank line. Back to mech pump.

 

[terzmo]

I think the only good thing about an electric pump is the ease of replacing it.....

 

[69Bee]

Not sure if it might apply here, but I had installed an electric Holley pump to assist. The pump was wired to a switch to turn it on when needed. Needless to say, I fould out the hard way that that model of Holley pump is not a feed-thru pump. If it is not running, fuel will not be sucked thru it by a mechanical pump. Just wanted to add that to the conversation...