Building EFI fuel system

[85_Ranger4x4]

Current Setup for a carb:
Low pressure in tank fuel pump (say for an '86)
Non-return fuel pressure regulator at intake manifold.

EFI system I would like to go to needs like 43PSI so the hodge podge borderline mess of factory 6mm nylon fuel line, brass fittings, hose and clamps will not work. I would like to upgrade anyway.

EFI will be a throttle body style. Will need a return style regulator.

Any pointers on what kind of fuel line/fittings to use? What works well what doesn't etc?

Kinda torn on fuel pumps, being a long distance driver I like the option of falling back to a carb if the EFI bricks itself. Run two pumps like a '86? Then if I needed to carb swap in BFE I could just bypass the high pressure pump. I used to have a red Holley pump on the frame rail, it was a PITA to prime so I like the thought of an in-tank pump either way. And if the high pressure pump dies I wouldn't have to drop the tank to replace.

The system will be feeding my carb for the time being, when the time comes to install the EFI I will replace the regulator, pump(s) and add the return line.

 

[fastpakr]

I feel like @rusty ol ranger might have some input on this topic.

 

[85_Ranger4x4]

I feel like @rusty ol ranger might have some input on this topic.

What input could he possibly have about removing a perfectly functioning carburetor for electronic fuel injection?

 

[Snoranger]

What input could he possibly have about removing a perfectly functioning carburetor for electronic fuel injection?

He’ll tell you it’s a great idea because he hasn’t had a single issue with his Jeep or F250 and they’re both fuel injected.

 

[Blmpkn]

You going with a sniper or something? Most of those setups come with AN fittings on the unit itself.. my vote would be to shell out the extra dough and go full AN.

You got a nice rig that you've put a load of work into.. little things like fancy fittings & hoses will help add to the 'neat!' factor at your car shows and stuff.

 

[alwaysFlOoReD]

When I was looking at AN fittings, I found that JIC is the same, just no bling. But 10% of the cost...

 

[Curious Hound]

When I was looking at AN fittings, I found that JIC is the same, just no bling. But 10% of the cost...

I just looked it up. Both are the same design. But AN (Army Navy) is held to tighter tolerances for higher pressures and to meet military standards requirements. JIC is fine and would be my choice.

 

[Curious Hound]

When I was looking at AN fittings, I found that JIC is the same, just no bling. But 10% of the cost...

I just looked it up. Both are the same design. But AN (Army Navy) is held to tighter tolerances for higher pressures and to meet military standards requirements. JIC is fine and would be my choice.

 

[rusty ol ranger]

I feel like @rusty ol ranger might have some input on this topic.

Not really.

Except...why use what you got now as a backup? Wouldnt ya rather just keep what ya know works?

Ok...the typical rusty response is out of the way.

Once i read what you were after first thought that popped in my mind was running the dual pump setup.


Arnt the frame rail pumps rated for like 50 or 60psi? Would probably be eaisest since you could just swap that stuff in using factory parts and then just install a return regulator that will allow 43 PSI.

Then if it does shit out like you said its just a matter of unhooking the frame pump, bypassing it, and feeding a carb.

That said though....i wouldnt try feeding the carb with the framerail pump beforehand. My 89 460 was setup like this and it would flood at idle. It had a regulator but it wasnt a return style...so maybe youd be ok with that style.

I pry have no clue here...but...i tried

 

[fastpakr]

Not really.

Except...why use what you got now as a backup? Wouldnt ya rather just keep what ya know works?

Ok...the typical rusty response is out of the way.

Once i read what you were after first thought that popped in my mind was running the dual pump setup.


Arnt the frame rail pumps rated for like 50 or 60psi? Would probably be eaisest since you could just swap that stuff in using factory parts and then just install a return regulator that will allow 43 PSI.

Then if it does shit out like you said its just a matter of unhooking the frame pump, bypassing it, and feeding a carb.

That said though....i wouldnt try feeding the carb with the framerail pump beforehand. My 89 460 was setup like this and it would flood at idle. It had a regulator but it wasnt a return style...so maybe youd be ok with that style.

I pry have no clue here...but...i tried

I was just hoping for some kind of humorous commentary on carbs vs EFI. You've mellowed so much over the years!

 

[rusty ol ranger]

I was just hoping for some kind of humorous commentary on carbs vs EFI. You've mellowed so much over the years!

Lmao...

Tell me about it. Im a mere shell of my old self.

 

[fastpakr]

Lmao...

Tell me about it. Im a mere shell of my old self.

I feel your pain.

 

[rusty ol ranger]

I feel your pain.

I dont know maybe one day ill surprise you guys and go off about EFI, overdrive, or anything else that still kinda bugs me but i dont have the energy to get wound up about lol

 

[fastpakr]

I dont know maybe one day ill surprise you guys and go off about EFI, overdrive, or anything else that still kinda bugs me but i dont have the energy to get wound up about lol

If it helps, EFI works so well for me that I kind of want an old carbureted motorcycle to remember the pain.

 

[Snoranger]

I just looked it up. Both are the same design. But AN (Army Navy) is held to tighter tolerances for higher pressures and to meet military standards requirements. JIC is fine and would be my choice.

The 04z-604 fittings (Weatherhead 1/4” JIC) fittings I stock have a max working pressure of 7000 PSI. Burst strength should be 3 or 4 times max working pressure… I wouldn’t be too concerned with the slight difference between JIC and AN.