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Re: Aluminium fuel line pressure?
[Re: Cab_Burge]
#1542244
12/01/13 03:28 PM
12/01/13 03:28 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
The Ethanol will eat non hard anadized aluminum just like Methanol does   even our local E10% pump gas will  OP, make sure and buy hard anadized coated, inside and outside aluminum line and fittings for your deal  That or stainless steel lines Teflon lined hose will not be affected by either type of pure or mixed alcholol is what I have told by the airplane industry, Teflon is the answer for heat, pressure and corrosive liquids according to them 
Even with hard anodized alum line it will crack the
hard coating when its bent with the bender... 2 things
that I know of arent effected by any fuel are Teflon
and Viton lined products... with Ethanol it carries
water and it corrodes the alum line when air contacts
it, but if it never sees air its not a problem..
but thats hard to do
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Re: Aluminium fuel line pressure?
[Re: Duner]
#1542245
12/01/13 04:19 PM
12/01/13 04:19 PM
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Joined: Jan 2003
Posts: 21,063
Niles , Ohio
therocks
oh wait.but hey.lets see.oh yeah.
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oh wait.but hey.lets see.oh yeah.
Joined: Jan 2003
Posts: 21,063
Niles , Ohio
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Mike I have aluminum on the 65.Its been on at least 8 years.Street driven.The rubber lined clamps work.I also use them on the brake lines.If I go to a pump etc in the rear Ill probally run the braid as its easier to do all the plumbing.Rocky
Chrysler Firepower
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Re: Aluminium fuel line pressure?
[Re: dartman366]
#1542248
12/01/13 05:01 PM
12/01/13 05:01 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
I just got a new roll of 5/8 Jegs brand aluminum fuel line and It specifically says max pressure 25# and also states that this product is not to be used on EFI systems,,in other words it's intended for plain old no frill's low pressure fuel line.
They must be running a thinner wall tubing now days
to say 25# max... they never use to say that... I
have a roll of 1/2" from Summit hanging on the wall
that I bought about a year ago and it didnt say that
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Re: Aluminium fuel line pressure?
[Re: Duner]
#1542250
12/01/13 05:35 PM
12/01/13 05:35 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
You can bet some lawyer was involved in that decision... either proactively before litigation or because of some.
No doubt
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Re: Aluminium fuel line pressure?
[Re: Duner]
#1542251
12/01/13 05:44 PM
12/01/13 05:44 PM
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Joined: Jan 2004
Posts: 13,247
Mt. Vernon, Ohio
dartman366
I Live Here
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I Live Here
Joined: Jan 2004
Posts: 13,247
Mt. Vernon, Ohio
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Quote:
You can bet some lawyer was involved in that decision... either proactively before litigation or because of some.
that wouldn't be a suprise to me, according to the tag it also states that it is .035 wall seamless which I believe is industry standard, I am also thinking that maybe Jegs themselves are trying to make sure that the buyer is well aware of it's intended use, I also know that I have used a lot of Jeg's house brand Items and have yet to have a quality issue, as far as the OP, I am under the thinking he need's to definately step up to a much higher quality system than aluminum line, no matter who makes it.
Light travels faster than the speed of sound,,,this is why some people seem bright untill you hear them speak.
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Re: Aluminium fuel line pressure?
[Re: dartman366]
#1542252
12/01/13 08:28 PM
12/01/13 08:28 PM
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Joined: Jan 2003
Posts: 27,421
Balt. Md
383man
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 27,421
Balt. Md
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I bought a 20 ft aluminum roll of 3/8 fuel line from Mancini in 2005. I run it from the stock tank to the front with just an electric pump by the tank. Its been on my 63 since 2006 as I ran it in the location the stock line ran. I have not had any issue's at all course I run about 6 psi. Ron
Last edited by 383man; 12/01/13 08:29 PM.
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Re: Aluminium fuel line pressure?
[Re: 383man]
#1542253
12/02/13 12:56 AM
12/02/13 12:56 AM
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Joined: Nov 2005
Posts: 690
New Hampshire, USA
oldiron
mopar
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mopar
Joined: Nov 2005
Posts: 690
New Hampshire, USA
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Looked up the twist-tite hose Interesting how its not recommended for fuel line
Notes:
This hose is NHRA approved, however it is not recommended for fuel line use.
Our SummitŪ Twist-Tite hose was designed for reduced weight, increased flexibility, and, best of all, affordability. The hose features an elastomer inner tube bonded with a reinforced textile braid, and covered in high-temperature synthetic rubber. The hose is compatible with a wide variety of fluids and is good to 250 psi when used with our Twist-Tite fittings. The red and blue anodized fittings install without tools--they simply Twist-Tite.
66 Belvedere Vert, 4 Speed/Jerico, slowly, very slowly, getting faster - NA LD Wedge New New Best: 10.56 @129 68 B'cuda 4 gear Jerico - Another New Best of 9.86 & Trying to slow up https://www.youtube.com/watch?v=T4jDLKwd9Gs
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Re: Aluminium fuel line pressure?
[Re: astjp2]
#1542255
12/02/13 02:07 AM
12/02/13 02:07 AM
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Joined: Jun 2005
Posts: 6,257
gulfport, ms, west mi
rowin4
master
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master
Joined: Jun 2005
Posts: 6,257
gulfport, ms, west mi
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Quote:
Quote:
Inverteed flare steel line. The aluminum uses tube inserts or shoulders, but the biggest problem is it is very crack prone, and not what I would want on a 50PSI sytem. 
I have run 1800 psi in 3/8" aluminum, but you need to make it right. Tim
By right do you mean having the other end open? other wise I think your gage was off by about 1775 pounds
it's ok to butt heads, just don't do it with a butthead
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Re: Aluminium fuel line pressure?
[Re: RobX4406]
#1542257
12/02/13 10:39 AM
12/02/13 10:39 AM
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Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
25 psi limit is laughable.
Lets use 3003 alum which is sort of popular for fuel line IIRC. Tensile strength is in the 13K+ range if my data is correct.
Let figure out burst pressure!
P = (2t x S) / O
Where:
P is burst pressure in PSI
t is wall thickness, in inches .035
S is tensile strength of material in PSI 13,000
O is outside diameter, inches .375
P = (2*.035*13000)/.375
P = .070*13000/.375
P = 910/.375
P = 2426
That's just a bit more burst pressure than 25 psi...
When the aluminum line cracks with 50 psi pressure there's a really good chance of your car catching fire.
When it cracks under suction it will leak a lot less gas.
Aluminum will crack and leak eventually, just a matter of when.
Build a quality car and use steel, there's still only one right way to do it.
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Re: Aluminium fuel line pressure?
[Re: Challenger 1]
#1542258
12/02/13 11:13 AM
12/02/13 11:13 AM
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Joined: Nov 2004
Posts: 3,544
Syracuse,NY
CompWedgeEngines
master
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master
Joined: Nov 2004
Posts: 3,544
Syracuse,NY
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Exactly Gary. theres a big difference between running a hydraulic fluid line on a payloader, vs a fuel pressure line on a race car. I havent seen many fatalities in a payloader where a line cracked, and the operator got burned to death because he couldnt get his seatbelt off. I have seen people in trouble in race cars from broken fuel lines . There is a point where simple common sense should take over, but many people will want to argue, because somewhere, there is engineering data to support their argument. ( I DO understand that). That being said, common sense should always prevail in a racing application. My
RIP Monte Smith
Your work is a reflection of yourself, autograph it with quality.
WD for Diamond Pistons,Sidewinder cylinder heads, Wiseco, K1 rods and cranks,BAM lifters, Morel lifters, Molnar Technologies, Harland Sharp, Pro Gear, Cometic, King Engine Bearings and many others.
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Re: Aluminium fuel line pressure?
[Re: Duner]
#1542261
12/02/13 12:03 PM
12/02/13 12:03 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Absolutely. Street miles and the extended vibration and usage play havoc on things for sure...especially when you view it as "time" in use.
The decision for mine was only too easy since it's 98% street and only 2% race anyway. Besides - how much of a weight difference could there possibly be?
Steel line for the same size is 2X the weight... I
dont mind making the line in steel but I wouldnt do
stainless.. that stuff is way to hard to work with..
and yes I've bent PLENTY of stainless lines while
I worked in the fuel lab.. and I have all the good
bending and flaring equipment... its just to hard to
correct if you mess up and too costly if you do mess
up... I never had any issues with the alum line on
my car and that was on there 10 years..... any leak
can cause a fire..... also if the alum line was so
bad the NHRA wouldnt allow it and they do... I would
bet 80% of the cars on this board and others run
the alum line
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Re: Aluminium fuel line pressure?
[Re: MR_P_BODY]
#1542262
12/02/13 12:16 PM
12/02/13 12:16 PM
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Joined: Nov 2003
Posts: 1,969
Chandler, AZ
Duner
top fuel
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top fuel
Joined: Nov 2003
Posts: 1,969
Chandler, AZ
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I don't doubt that aluminum might work fine for 90% of the cars out there. I just know my luck. I have to make stuff as bullet-proof as I can make it. I'm also not THAT worried about the added expense of something if I only have to do it once. I ran an FMU setup on my ride for 7 years that would spike the fuel pressure beyond 150psi when in boost. In the mean time I did put another 50K miles on it in that configuration. That said - I've always worried about a fire for obvious reasons. I was doing it all wrong, but it DID manage to make 700hp thru a 1/4 fuel line. LOL I'm working to pull it back from the brink of self-destruction with smarter choices.
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