Custom fuel system makes me want to cry

[Gimmie Green]

I am finishing up my instalation of a tuned port injected 350 SBC in my 1967 FJ40. The fuel system has left me scratching my head. At first I thought that a Chevy S-10 Blazer fuel tank was the right option. So I purchased a 91 Camaro fuel pump and grafted it into the Blazer sender. Now that I have done a dry fit of the tank and I am not satisfied with the fit. I just dont know if I can live with the sacraficed ground clearance, and in addition a tank mounted under the rear of my rig throws a wrench in my plans of a future four link rear and extended wheel base. So I have a hundred or so bucks invested in a fuel setup I dont want and I am trying to divise a way to use this submergible pump. Does any one have any experience modifying their oe tank to accept a mid 90s style GM sender and fuel pump assy. If so, were the factory baffles in the Toyota tank sufficient enough for a high pressure GM submergible pump. The TPI pump like I am using puts out in the ball park of 50 psi while the TBI pump only puts out around 12 PSI. Any ideas or advise would be appreciated.
Brad @ Rubens Body Shop

 

[Gimmie Green]

 

[lone gunman]

hey Gimmie Green the only way i have seen it done is with that baffle and pump set up that tanks sells (i listed in the last post) so i dont know if the factory set up would keep fuel to the pump in a corner etc. like i mention you may end up going two pumps one low pressure to a surge tank and high pressure from surge tank to fuel rail. that is how i did it and if you search tune port injection or tpi you will find a lot of links to sites with ideas. one picture i posted a while back had a surge tank made out of water filter housing using the high pressure pump that you have and mounting it in the engine bay. when i get home i could repost the pics and article.

 

[FJforty]

What's wrong with a stock tank and an external pump, besides the money spent.

 

[craptabulous]

What's wrong with a stock tank and an external pump, besides the money spent.

the external pumps push not pull so they will have to be underneath the tank . they also tend to get hot and burn up because there no submerged in fuel and subjected to the heat of the undercarriage . plus they are out there in the elements .

a in tank set-up is ideal . a external pump is generally what is done .

i would adapt it by cutting the bung out of the gm tank and welding or soldering it into a fj tank . my buddys 96 gm tank has basically no baffles just a tray at the bottom about 2" high that the pump sits in . i would think if you could get it to sit in the bottom dimple of the tank that would be about perfect .

 

[Gimmie Green]

Yeah Lone gunman that would be great and a h#)) of a lot easier that cuting up my oe tank. I was digging around in my shop and found a brand new Carter P61295S that would work perfect for the transfer pump. Do i run my return from my fuel rail back to the main tank or the surge tank? perhaps you could help with a few of the minor details

 

[FJforty]

Not that I know that much about modern external pumps( self priming), they should be able to be installed some amount above the tank. Are you sure craptabulous? I do understand about the whole cooling thing. With a submerged pump if you run low or out of gas the fuel pump burns up. Been there, done that.

 

[lone gunman]

OK here is some links to past posts, take the time and look at them lots of info and if you still have questions please ask.

https://forum.ih8mud.com/40-55-series-tech/194273-tank-fuel-pump.html

https://forum.ih8mud.com/40-55-series-tech/175431-need-350-tbi-tpi-fuel-injected-help-1970-fj55.html

https://forum.ih8mud.com/40-55-series-tech/257961-need-engine-tranny-recommendation-1972-fj40.html

https://forum.ih8mud.com/40-55-series-tech/265779-engine-use.html

and if these links work its for pre-fabed surge tanks.

Fuel Surge Tank Aluminum 2 Litre Swirl Pot System:eBay Motors (item 290380230667 end time Dec-20-09 16:02:22 PST)

or

Aluminum Fuel Surge Tank 3 Litre Swirl Pot System:eBay Motors (item 190353682779 end time Dec-29-09 01:35:15 PST)

0r

Aluminum Fuel Surge Tank 2 Litre Swirl Pot System:eBay Motors (item 180438976734 end time Dec-29-09 01:37:37 PST)

and

Aluminum Fuel Surge Tank RX7 S13 Civic Mustang Eclipse :eBay Motors (item 120456626554 end time Jan-03-10 22:15:37 PST)

the surge tank doesnt have to be as big as the ones i linked. you only need to have about 12 ounces of fuel according to jags that run. mine holds about a liter and is mounted under the drivers seat by the factory fuel tank.

 

[lone gunman]

i cant find the link to the surge tank using the water filter housing but i included a pic of it and i found it originally by googeling fuel surge tank so you might try it. good luck!

 

[FJforty]

I might question the plastics and o-ring of a water filter but some of that plastic stuff they make now is impressive. As usual, someone has already been here, fixed that, and driven off.