Fuel line sizing
#1
Fuel line sizing
While the frame is bare I figure now would be a good time to run brake and fuel lines. The frame has been boxed but the old fuel line (using as a pattern) seems to lie all right.
Engine is a 455 with a Holley Street Avenger 870, aluminum intake & heads. I have a new Tanks Inc tank with a Walbro in-tank electric fuel pump (255 lph) that will run to an Aeromotive carb regulator.
Here is where I have conflicting information: Tanks state to use a -6AN line and return from tank to regulator, Aeromotive states to use a -10AN feed line with a -8AN return.
Do I need lines that big? I was hoping to use new factory style steel lines and then just modify the ends at the tank and regulator. If I have to go big I would probably run hoses for feed and return.
Engine is a 455 with a Holley Street Avenger 870, aluminum intake & heads. I have a new Tanks Inc tank with a Walbro in-tank electric fuel pump (255 lph) that will run to an Aeromotive carb regulator.
Here is where I have conflicting information: Tanks state to use a -6AN line and return from tank to regulator, Aeromotive states to use a -10AN feed line with a -8AN return.
Do I need lines that big? I was hoping to use new factory style steel lines and then just modify the ends at the tank and regulator. If I have to go big I would probably run hoses for feed and return.
#2
While the frame is bare I figure now would be a good time to run brake and fuel lines. The frame has been boxed but the old fuel line (using as a pattern) seems to lie all right.
Engine is a 455 with a Holley Street Avenger 870, aluminum intake & heads. I have a new Tanks Inc tank with a Walbro in-tank electric fuel pump (255 lph) that will run to an Aeromotive carb regulator.
Here is where I have conflicting information: Tanks state to use a -6AN line and return from tank to regulator, Aeromotive states to use a -10AN feed line with a -8AN return.
Do I need lines that big? I was hoping to use new factory style steel lines and then just modify the ends at the tank and regulator. If I have to go big I would probably run hoses for feed and return.
Engine is a 455 with a Holley Street Avenger 870, aluminum intake & heads. I have a new Tanks Inc tank with a Walbro in-tank electric fuel pump (255 lph) that will run to an Aeromotive carb regulator.
Here is where I have conflicting information: Tanks state to use a -6AN line and return from tank to regulator, Aeromotive states to use a -10AN feed line with a -8AN return.
Do I need lines that big? I was hoping to use new factory style steel lines and then just modify the ends at the tank and regulator. If I have to go big I would probably run hoses for feed and return.
Another way is just to use the 3/8 line and keep an eye on the fuel pressure at the carb/injection, which you really need to do anyway once running at first.
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Bluemeanie
Wheels and Tires
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November 5th, 2011 12:31 PM