Alright guys...My 47 Willys project jeep (aren't they all?) needs a fuel tank so I can start screwin with the motor. I have the dimensions all settled for the tank, but I am having problems with the in-tank fuel pump assembly. I did not know that the Chevy assemblies were so freaking huge. The damn thing is well over 12" long. I wanted to keep the hiegth of the tank to around 10". Anyone have any suggestions? I don't want to put the pump assembly in horizontily because then I would have fuel against the seal 24/7.

1996 Fuel injected 4.3L Vortec

Thanks and :beer:

umm no tank pump.. in line pump..


ever think that line?

Second that one...

In line pump has many advantages

1) easier to replace if it goes TU
2) less work to install
3) easier to change filter
4) no problems with fitting it in your case

only thing you have to worry about is making sure that you get one that has enough pressure and flow for whichever injection type you are running.

-web

I guess I should have thought outside the box a little more!

Seriously, I had thought about in-line rather than in-tank, but discounted it. I guess it is time to revisit the idea

http://www.autoperformanceengineering.com/

Cheapest price for Walbro pumps going. Walbro are what many of the drag racers are using in their 300-500hp cars. He has intank as well as inline pumps. The 190 lph pump will work fine for your application. All kinds of fittings are shown on the site as well.

There are several reasons to use an intank setup IMO

- better sumping & pickup of fuel
- pump stays cooler, prolonging life
- pump isn't exposed to elements/rocks etc


However, if you sump the tank & mount the pump well, the external pump will work fine. Don't let it run dry, and do not let it sit without gasoline in it after you have ran gas through it.

I used a Mallory high-pressure in-line when I swapped in the Ramjet. Works great.

Good luck,
Jake

If you are mounting the tank in the bed and want to keep the in tank pump you can build a sump in the bottom of the tank deep enough for the pump. That way only part of the tank is going through the floor.

When I built my last tank it is around ten inches deep also. I just shortended the tube that the pump mounts on to fit the hieght of the tank it has worked fine for the last 6 or 7 years. I don't recall what the unit was out off orginally but I just cut it and put my new pump for the tbi on.

I used the factory in tank fuel pump on my swap. I had to cut a section of the in tank bracket down and weld it to shorten it up. The tank also had to be cut and the donor tank top was welded in. I would rather have the in tank pump to keep it pushing and avoid any kind of vapor lock problems.

http://home.att.net/~tjsjeeps/tank.gif