NHRA Fuel line rules? Anyone?

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  • Brad54
    Superhero BangShifter
    • Mar 2008
    • 810
    #1

    NHRA Fuel line rules? Anyone?

    Since I'm fresh out of NHRA rule books, can someone give me the quick low-down on fuel line requirements? From what I'm able to find, the overall rule is hard lines, with no more than 12-inches of rubber line. This would be 6 inches from tank to hard line, 6 inches from hard line to fuel pump (or 6-inches from frame to engine if an inline electric pump is employed).

    Is there any specific rule that mandates braided metal line at a certain ET?

    Thanks,
    -Brad
    Tags: None
    • fedsrule
      Drives An Automatic
      • Dec 2008
      • 36
      #2
      Re: NHRA Fuel line rules? Anyone?


      The way I understand it they count from the pump to the carb, since the rubber line from the hard line to the pump and the intermediate rubber line connecting back hard line and front hard line (at least on a Nova) came from the factory that way. They're just worried about the guy who puts on a new intake and carb and runs a rubber line from pump to carb.
      An easy way around the rule is to buy braided line and use hose clamps, no need for AN fittings, unless you're running something serious.

        Comment

        • revolutionary
          Superhero BangShifter
          • Nov 2007
          • 704
          #3
          Re: NHRA Fuel line rules? Anyone?

          2009 rule book says 12 inches total of non-braided or non-metallic line from front to rear. In other words that is the total you can have for the entire system.

            Comment

            • Schtauffer
              Legendary BangShifter
              • Dec 2007
              • 5320
              #4
              Re: NHRA Fuel line rules? Anyone?

              So is my nylon braided AN line from the mechanical pump to the carb ok?
              The official Bangshift garage door guru. Just about anything can be built using garage door parts, trust me.

                Comment

                • revolutionary
                  Superhero BangShifter
                  • Nov 2007
                  • 704
                  #5
                  Re: NHRA Fuel line rules? Anyone?

                  There are woven pushlock hoses that are NHRA accepted but you might want to check with a tech official if you just have a plain nylon woven hose.

                    Comment

                    • Schtauffer
                      Legendary BangShifter
                      • Dec 2007
                      • 5320
                      #6
                      Re: NHRA Fuel line rules? Anyone?

                      It is this stuff:

                      http://www.russellperformance.com/mc...oclassic.shtml
                      The official Bangshift garage door guru. Just about anything can be built using garage door parts, trust me.

                        Comment

                        • revolutionary
                          Superhero BangShifter
                          • Nov 2007
                          • 704
                          #7
                          Re: NHRA Fuel line rules? Anyone?

                          The Russell Twist Lock hose is approved but I don't believe their Pro Classic is. Look at the notes in the Twist Lock on the Russel link you sent.

                            Comment

                            • JeffMcKC
                              Legendary BangShifter
                              • Oct 2007
                              • 7024
                              #8
                              Re: NHRA Fuel line rules? Anyone?

                              And it has to be sheilded past the flywheel, and not in the driveshaft area
                              2007 SBN/A Drag Week Winner & First only SBN/A Car in the 9's Till 2012
                              First to run in the .90s .80s and .70's in SBN/A
                              2012 SSBN/A Drag Week Winner First in the 9.60's/ 9.67 @ 139 1.42 60'
                              2013 SSBN/A Drag Week, Lets quit sand bagging, and let it rip!

                                Comment

                                • CDMBill
                                  Legendary BangShifter
                                  • Oct 2007
                                  • 4357
                                  #9
                                  Re: NHRA Fuel line rules? Anyone?

                                  Shielded can include being mounted on the other side of the frame from the flywheel area.
                                  Drag Week 2006 & 2012 - Winner Street Race Big Block Naturally Aspirated - R/U 2007 Broke DW '05 and Drag Weekend '15 Coincidence?

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