gleninsandiego

It is time to plumb up my EFI gas tank from Tanks Inc. for my 69
I got their in tank fuel pump
I have a few questions.

Has anyone done this?
Any suggestions on what to do or not do?

Let's start with the filler neck
My old one is a rusty mess, but I can bead blast it and get it clean.
What can I use to paint it with to keep it from rusting and be gas resistant?

Also, any suggestions where to locate the pressure regulator / filter?
Does it matter if I place that and the return by the gas tank or have it closer to the engine with a longer return line?

Any suggestions on the gas level sensor to put in?

Thanks
Glenn in San Diego

Jeff k

Follow the instructions that Tanks supplies, they are pretty good. Measure several times before cutting the pump supply and return. Same goes for the sender unit. The filter/ regulator can be mounted close to the tank. Keeps the lines short. ( Less expensive)

NeverTooOld

You may not need a pressure regulator as your present 1/4" steel tubing return line alone may have enough resistance to flow to provide 5 psi. I installed a 100 gph electric pump and found the 1/4" steel tubing return line gave me 9 psi because of so much flow going through it. So I used a 5/16" I.D. fuel hose for my return line and that gave me the 6 psi I was wanting.

PainfullySlow

As far as the filler neck goes, for parts that will not be in contact with gasoline there are products called rust encapsulators which renders the rust inert then gives you a surface that you can topcoat if you like.

For parts where it will come into contact with gas I would think that you would need to use POR15 or some sort of fuel tank liner.

lionelhutz

For a returnless system, the regulator and filter can be at the back of the car by the tank.

For the neck, check around and see if there is a galvanizing or other zinc type plating company in your area. If so, see if they would run it through the process for you. Otherwise, you'd need something like a gas compatible sealant to use on the inside for it to stand up. You could also try powercoating it if you can find a company nearby. It probably has to be sand blasted for that to have any chance of success though and by that time you might be spending enough to justify a new one.




Typical combination of both bad advice and completely wrong advice.

#1 - This is EFI so the pressure will be much higher.

#2 - The OP posted about a regulator/filter so that is going at the back of the car which also means a single line will go to the engine.

#3 - you don't want a fixed restriction creating the correct fuel pressure at idle or when the engine is off. That would mean the fuel pressure will drop as the engine fuel demands rise which further means the fuel pressure will be the lowest when the engine demand is the highest, which is the WORST possible situation to have.

gleninsandiego

thanks for the advice

right now the body is off so I am running new gas lines
I have two identical lines positioned just in case
I want to use a return in the future
so I can go either way now

pws69

Looking GREAT!!

lionelhutz

Nice work!

71 Vert LS1

Are you going to run an LS engine or retrofitting EFI onto a SB or BB?

On LS swaps it's required to have the fuel regulated to 58 psi at the fuel rail. Most use the C5 fuel filter regulator. I mounted mind to the cross member above the spare tire carrier. One -6 line running up to the fuel rail.

If it's not a LS swap it may make sense to mount the fuel regulator in the engine compartment for ease of access for adjustment since you are running two fuel lines.

gleninsandiego

Thanks

As weird at this sounds, I have not decided what engine I am going to run in the car. I have been focusing on the body and frame, so I am building the fuel system to handle either an LS or retrofitting an EFI on a SB or BB or even initially running a carb. Sounds nuts but I want to run all the lines with the body off to be able to handle all 3 options.

Once the body is on, it is staying on. LOL

caskiguy

Hey guy, just curious, do you feel the fuel lines you installed are tight enough to the frame as was the case from the factory to protect them from debris ? From the angle of the photo they look to be away a bit.
Looking great, I'm not where you are in my project but thank you for posting your build.



1970 fuel line routing



1970 fuel line(s)

rogernison

Fuel filler neck, you might want to try evaporust, it seems to strip rust fairly clean where I have used it. You should find it at most auto parts stores. Hope it works out for you.

gleninsandiego

Good eye.
Right now the two fuel lines are loosely connected as I am pondering what exactly to do. I have clips to bring them in tighter. As they are now they would hit the birdcage piece that wraps around the frame.

Great pics of you project. Thanks for those

Glenn

gleninsandiego

I like how you think. LOL
Already been soaking