North American Turbocoupe Organization



Metal Fuel Lines
mmedic50 Offline
Senior Member
#1
Under the engine and running along the back side of the K memeber und coming up on the drivers side are the metal fuel lines. One is larger than the other one. Which is the supply line and which is the return line? The larger of the two broke at the 90 degree upturn to the plastic fuel lines on my car. Can I use regular rubbber fuel line to splice the two pieces back together or even a short piece of the high pressure plastic stuff? Any suggestions would be nice. Thanks, Michael
1988 TC 5 speed, Dark Blue
Build date 5/88.
140 mph Ford Motorsport Speedometer
Tripminder
Walbro 255 Fuel Pump
Kirban Adj. Fuel Pressure Regulator
K&N Air Filter
Gillis Boost Control Valve
New rebuild- .030 over pistons.
SS valves(1.89/1.59).
Center Force Stage II clutch.
ARP head studs.
Crane roller cam .450 lift.
Gutted upper and ported lower intake.
Ceramic coated and ported E6 exhaust.
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fiveliter8 Offline
Senior Member
#2
The larger of the two is the supply line. You can use a piece of high pressure rubber line and double clamp it on each end. Thousands have done it this way that are building Factory Five cobra replicas that are running EFI and never had problems. I would recommend putting a slight flare on it to be in the safe side. Being at an elbow, the only thing I'd be worried about is the line getting kinked.
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1988Tcoupe-ye will be missed
'09 Flex SEL
1984 20th Anniversary GT350 Mustang 'Vert
1984 Mustang GT T-roof
1965 Shelby Cobra Replica
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Pete D Offline
Administrator
#3
The larger one is supply, smaller is return.
If this is an 87-88 ,i know th efront right brake line and the rear brake line also run across the back of the K member. If your fuel line broke due to rust, then your brake lines are also in very bad shape and they see much higher pressures. BTDT

I'm not sure what line(s) you can use but remember that it will see pressures in the 50-60 psi range stock, could see pressure as high as 120 psi if a blockage occures.
Pete Dunham


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