JIC vs AN Fuel Fittings
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From: North Alabama
JIC vs AN Fuel Fittings Is anyone using JIC fittings instead of AN fittings on your stock fuel pressure setups? From what I have read I believe using JIC for fuel fittings at ~60 psi would be more than sufficient. What does everyone else do?
Thanks,
Chase
Thanks,
Chase
Thread Starter
TECH Apprentice
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From: North Alabama
Launching!
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From: Chicago Area
You're driving a car, not flying an aircraft. 
So AN isn't necessary. JIC is beyond good enough and less $$$.
Most people just use AN because they don't know about JIC or other options.
AN = Army / Navy certifications created in the 60's iirc for aircraft grade components.
I believe it changed to Air Force / Navy now though.
OEM's use the polymer lines and fittings now too, which I put on my ride.
$2 per fitting VS $20 per Russell AN fitting......do the math. Not going over 700hp.
So AN isn't necessary. JIC is beyond good enough and less $$$.
Most people just use AN because they don't know about JIC or other options.
AN = Army / Navy certifications created in the 60's iirc for aircraft grade components.
I believe it changed to Air Force / Navy now though.
OEM's use the polymer lines and fittings now too, which I put on my ride.
$2 per fitting VS $20 per Russell AN fitting......do the math. Not going over 700hp.
Read this to understand the difference between AN and JIC: http://weislake.com/sig/mucker/an-vs-jic.pdf
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Launching!
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From: Chicago Area
Here.....read.
http://en.wikipedia.org/wiki/JIC_fitting
Here's where people get confused.
JIC is often referred to as SAE and SAE comes in 2 flare sizes, 37 degree and 45 degree.
You can get the wrong flaring and have issues , and I think that's where some people's perception of just sticking to AN was better.
Just make sure you order 37 degree JIC / SAE fittings and you're fine.
http://en.wikipedia.org/wiki/JIC_fitting
JIC fittings, defined by the SAE J514 and MIL-F-18866 standards, are a type of flare fitting machined with a 37-degree flare seating surface. JIC (Joint Industry Council) fittings are widely used in fuel delivery and fluid power applications, especially where extremely high pressure is involved. The SAE J514 standard replaces the MS16142 military specification, although some tooling is still listed under MS16142. JIC fittings are dimensionally identical to AN (Army-Navy) fittings, but are produced to less exacting tolerances and are generally less costly. 45-degree flare fittings are similar in appearance, but are not interchangeable.
JIC is often referred to as SAE and SAE comes in 2 flare sizes, 37 degree and 45 degree.
You can get the wrong flaring and have issues , and I think that's where some people's perception of just sticking to AN was better.
Just make sure you order 37 degree JIC / SAE fittings and you're fine.
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Here.....read.
http://en.wikipedia.org/wiki/JIC_fitting
Here's where people get confused.
JIC is often referred to as SAE and SAE comes in 2 flare sizes, 37 degree and 45 degree.
You can get the wrong flaring and have issues , and I think that's where some people's perception of just sticking to AN was better.
Just make sure you order 37 degree JIC / SAE fittings and you're fine.
http://en.wikipedia.org/wiki/JIC_fitting
Here's where people get confused.
JIC is often referred to as SAE and SAE comes in 2 flare sizes, 37 degree and 45 degree.
You can get the wrong flaring and have issues , and I think that's where some people's perception of just sticking to AN was better.
Just make sure you order 37 degree JIC / SAE fittings and you're fine.
I know functionally they're the same, but i'll gladly pay $30/fitting (for the crazier angles like 120*) for some quality Aeroquips.
I agree, I've seen steel braided hydraulic lines with AN fittings pressure checked to over 5000 psi (nothing on a car is going to achieve this kind of pressure, ever). I'd say JIC is more than suitable for fuel lines.
Launching!
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From: Chicago Area
Hydraulic fittings aren't bling blingy but they are hardcore superceding what anyone would need.
The ONLY fittings I wouldn't use is the 90* plus types because it's literally an elbow,
not a curve, and that hurts fuel flow in higher HP applications I've been told by Jody (Camcojb)
Bling bling under my car isn't my thing personally, I prefer functional but inside the bay obviously people want something nice looking.
That's where you put the nicer stuff. Here's another link that shows JIC is an Industrial application.
http://pipeandhose.com/node/16
If there is an industrial hydraulic business in your area I suggest you pay them a visit. They can hook you up with just about any type of hose you will need. I especially like using them for making custom power steering hoses. I also suggest that you use teflon lined hose for fuel. It is more expensive and less flexible than the reinforced rubber hose, but it will not be effected by fuel, which is not something that can be said for the rubber hose over time.
Here is a hose that I had made for my swap that uses JIC ends. It is teflon hose with a braided stainless on the outside but I covered it with a braided nylon cover:
Andrew
Here is a hose that I had made for my swap that uses JIC ends. It is teflon hose with a braided stainless on the outside but I covered it with a braided nylon cover:
Andrew
Launching!
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From: Chicago Area
"Teflon" is a trademarked name, the more commonly used name is PTFE lines.
Hey Andrew, hows your fuel system with that ONE hydraulic fuel fitting that is a 90* bend by the fuel tank??
I've been curious what kind of HP you're pushing and if you've experienced any issues or not with WOT.
Hey Andrew, hows your fuel system with that ONE hydraulic fuel fitting that is a 90* bend by the fuel tank??
I've been curious what kind of HP you're pushing and if you've experienced any issues or not with WOT.
"Teflon" is a trademarked name, the more commonly used name is PTFE lines.
Hey Andrew, hows your fuel system with that ONE hydraulic fuel fitting that is a 90* bend by the fuel tank??
I've been curious what kind of HP you're pushing and if you've experienced any issues or not with WOT.
Hey Andrew, hows your fuel system with that ONE hydraulic fuel fitting that is a 90* bend by the fuel tank??
I've been curious what kind of HP you're pushing and if you've experienced any issues or not with WOT.
Incidentally, that 90* fitting was there when I had the 502 in the car with the same fuel pump and there were no issues, even though the 502 made more power than my engine does now. Also, the fittings that come out of the tank are the same 90* design.
Andrew
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Why are you guys spending so much to get Russell fittings? Not worth the $$$ IMO.
You can get AN Hose ends for about $4
AN Hose for about $4.50/ft
Teflon AN for about $6/ft
All with Free Shipping
I've used them with no problems on my Power Steering Lines(Teflon AN Hose/Steel/Zinc) and used AN Fittings/Hose from my 4L80E to my trans cooler. Going from regular 3/8" fuel line to all AN hoses when I add another Walbo 255 down the road.
You can get AN Hose ends for about $4
AN Hose for about $4.50/ft
Teflon AN for about $6/ft
All with Free Shipping
I've used them with no problems on my Power Steering Lines(Teflon AN Hose/Steel/Zinc) and used AN Fittings/Hose from my 4L80E to my trans cooler. Going from regular 3/8" fuel line to all AN hoses when I add another Walbo 255 down the road.
Why are you guys spending so much to get Russell fittings? Not worth the $$$ IMO.
You can get AN Hose ends for about $4
AN Hose for about $4.50/ft
Teflon AN for about $6/ft
All with Free Shipping
I've used them with no problems on my Power Steering Lines(Teflon AN Hose/Steel/Zinc) and used AN Fittings/Hose from my 4L80E to my trans cooler. Going from regular 3/8" fuel line to all AN hoses when I add another Walbo 255 down the road.
You can get AN Hose ends for about $4
AN Hose for about $4.50/ft
Teflon AN for about $6/ft
All with Free Shipping
I've used them with no problems on my Power Steering Lines(Teflon AN Hose/Steel/Zinc) and used AN Fittings/Hose from my 4L80E to my trans cooler. Going from regular 3/8" fuel line to all AN hoses when I add another Walbo 255 down the road.
Launching!
Joined: Jun 2005
Posts: 272
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From: Chicago Area
I've had no issues with the set-up in the picture. I have a fuel pressure gauge inside the car and the pressure is pegged at a constant 58.5psi under all driving conditions. The only issues I've experienced is a small leak that occurred at the dark colored compression fitting. I tightened it up and it stopped leaking, but I plan to revise that arrangement slightly at some point.
Incidentally, that 90* fitting was there when I had the 502 in the car with the same fuel pump and there were no issues, even though the 502 made more power than my engine does now. Also, the fittings that come out of the tank are the same 90* design.
Andrew
Incidentally, that 90* fitting was there when I had the 502 in the car with the same fuel pump and there were no issues, even though the 502 made more power than my engine does now. Also, the fittings that come out of the tank are the same 90* design.
Andrew
I've been curious if that was a straight 90* angled connector and if it gave
you issues when I saw that build thread ages ago. Very nice car (obviously)
