EFI Fuel line.
Thread Starter
Racer
Joined: Aug 2003
Posts: 463
Likes: 17
From: Belgium /
EFI Fuel line.
I am getting ready to install a Fitech EFI and have a phantom 200 fuel pump to put in my tank, I would use the stock fuel line as return and put a new 3/8 fuel line but now the question is what fuel line should I use ?
Should I use solid aluminum or stainless steel hard line front to back or use Ptfe stainless braided line ?
Also can people who have done this tell me what the best route would be to add the line ?
The car is a '75 with the body still on.
Thanks
Should I use solid aluminum or stainless steel hard line front to back or use Ptfe stainless braided line ?
Also can people who have done this tell me what the best route would be to add the line ?
The car is a '75 with the body still on.
Thanks
Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
I have had the stock as a stove steel OEM fuel lines being used for some 21 years now, on my '72 which I bought in '95.....I just put the pump on the back frame rail with a hose cut open for a buffer, and a hose clamp, and so put GOOD clamps on GOOD HOSE at all ends, and used the stock return line also....the DPFI pressures run ~42 lbs or so and the pressure can be reduced to 35 psi which is way tooooo low....so that means the return is not restrictive.....
NOW that has nothing to do with fuel slosh problems uncovering the fuel pickup and engine stumble/die in hard cornering....another topic....
NOW that has nothing to do with fuel slosh problems uncovering the fuel pickup and engine stumble/die in hard cornering....another topic....
Race Director
Joined: Sep 1999
Posts: 11,361
Likes: 383
From: Plano TX
You should not use aluminum line as it will eventually crack.
I used steel 3/8" brake lines. Easy to bend without kinking and came double flared at both ends in 5 foot sections. Used 3 sections, cut the ends, flared, and used FI rated hose w/ FI clamps. Has worked fine for many years. I used the stock line as feed and ran a new line for return on the driver's side.
I used steel 3/8" brake lines. Easy to bend without kinking and came double flared at both ends in 5 foot sections. Used 3 sections, cut the ends, flared, and used FI rated hose w/ FI clamps. Has worked fine for many years. I used the stock line as feed and ran a new line for return on the driver's side.
Instructor
Joined: Jan 2004
Posts: 109
Likes: 13
From: Johnson City TN
I did the same thing this past winter with the body on. I used 3/8" cunifer bought from http://www.fedhillusa.com/. It's a copper nickel alloy that bends easily. I ran a single line from the fuel tank to the front and didn't even need need to use tubing benders.
Last edited by danc24; Sep 18, 2016 at 01:33 PM.
Drifting
Joined: Oct 2012
Posts: 1,524
Likes: 61
From: Medina Ohio
I have had the stock as a stove steel OEM fuel lines being used for some 21 years now, on my '72 which I bought in '95.....I just put the pump on the back frame rail with a hose cut open for a buffer, and a hose clamp, and so put GOOD clamps on GOOD HOSE at all ends, and used the stock return line also....the DPFI pressures run ~42 lbs or so and the pressure can be reduced to 35 psi which is way tooooo low....so that means the return is not restrictive.....
NOW that has nothing to do with fuel slosh problems uncovering the fuel pickup and engine stumble/die in hard cornering....another topic....
NOW that has nothing to do with fuel slosh problems uncovering the fuel pickup and engine stumble/die in hard cornering....another topic....
All of my line are being increased to run E85, so I have no help. (And body is off chassis so they will be replaced with full length pre-bents.)
Drifting
Joined: Sep 2006
Posts: 1,986
Likes: 21
From: Columbus MN
I think that's a good decision. Conifer tubing doesn't corrode or crack and it's easier to flair than stainless steel tubing.
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Drifting
Joined: Sep 2006
Posts: 1,986
Likes: 21
From: Columbus MN
Drifting
Joined: Sep 2006
Posts: 1,986
Likes: 21
From: Columbus MN
Race Director
Joined: Jan 2000
Posts: 12,399
Likes: 247
From: San Jose CA
I used Ptfe stainless braided line since the body was still on my 76. You can see it along the frame rail in the background....sorry I don't have better pics of the routing but it goes up at the kickup and along the frame the entire route till it exits behind diff cross member...it has a protective routing all the way. Do stay away from braided rubber line at all costs....weeps smell into garage. Hard line might be fugly to attempt on a frame on install.
jim
jim
Race Director
Joined: Apr 2007
Posts: 11,152
Likes: 890
From: South Western Ontario
That's a good looking install. Personally, I like solid line as much as possible with braided only used to go between the frame and engine and gas tank and frame.