Announcement

Collapse
No announcement yet.

Fuel Line Sizing?

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    Fuel Line Sizing?

    How does one determine the fuel line size for a given project or rebuild?



    Packman

    #2
    Depends on the pressure in the fuel system. Low pressure needs a larger size to move adequte volume, so basically a carb that might need 1/2" might be fine in 5/16" on an EFI car. I'm sure the fluid dynamics types can crunch the numbers based on total length, the bends, and volume required to come up with a fuel line size but the cheater method is to just stick a fuel pressure gauge on it and watch. If it drops pressure, its probably starving for fuel and needs either more pump or more fuel line.
    86 Lincoln Town Car (Galactica).
    5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

    91 Lincoln Mark VII LSC grandpa spec white and cranberry

    1984 Lincoln Continental TurboDiesel - rolls coal

    Originally posted by phayzer5
    I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

    Comment


      #3
      Hmmm......I guess there was a reason for the smallish 5/16 line found on the EFI lopos. I didn't think of it that way.


      Packman

      Comment

      Working...
      X