running fuel lines inside frame rails

[Travis77]

Anyone hear try running their fuel lines inside the frame or subframe? It's not that big of a deal having them exposed, but it would be nice if they were hidden.

[thedugan]

I'm quite sure they did that on Project Prodigy. Frank would have to chime in to confirm

[camcojb]

mine is inside the frame up until it hits the firewall. It is a clean way to go, but pretty much requires a flexible line at least in my case, to get up and over the rear end part of the frame.

Jody

[Ricochet]

I have done this many of times. Make sure you use good line & fittings though. I have used bulkheads to exit the frame. Makes for a rela nice clean look. To this you will have to do some minor fabwork to make that happen cleanly - but in the end a much cleaner and safer way IMO. I have also done tranny lines and battery cables. Not a good idea though to run both fuel lines & battery cables together on the same side!! Not experience talking. Brakelines are the only ones I will not do. The should be supported well.

Brent

[bentfab]

Hey Guys,
Saw the post and had to reply. I know everyone likes to hide things for the cleaner look but!!!! It is the worst thing you can do. Vibrations, chassis flex and all that good stuff that gos along with a moving machine causes ABBRASION!! In my experince of doing what I do I've seen hardline with at least an 1/8 wall thickness rubb rite through and cause a pin hole leak. So shoving soft line through areas that you don't know where a sharp edge is won't make for a good time when gas is flowing. The best way is to take your time make or buy nice clamps and route the line or hose properly. The most negleckted part of car builds are the last but most important. You can't GO or STOP with out properly routed fuel and brake systems Believe me I've seen it all!!! I hope this helps

[Travis77]

I can understand both sides here. I have straight 2x3 tubing for my rails. I was thinking of running .5" stainless tubing through the rails. AfterI ran the lines I considered drilling several .25" holes a few feet apart and injecting foam. I would think this might help with the vibration. By doing this though, I may defeat the purpose of running stainless. I say this, because I have heard that stainless needs to remain unpretected and free to an oxygen environment. But I would feel better running stainless rather anything else. Okay.... now I'm really .