Fuel line routing?

[TouringBubble]

Anyone know the suggested way to route fuel lines for an SCCA legal car? the Beetle won't be legal for TT due to the cage and some other things, but I still like to take ideas where I can.

I was planning to run the new lines where the stock ones are, through the center tube. But, it's sealed and will be a pain to fish lines through, plus the lines would just be loose and moving around in there ... not ideal.

There is a channel that runs along the side of the pan on both sides of the floor pan. I was thinking of running the lines there on the underside of the car. I could also run them through the cabin in the same way as the brake lines (along the ende of the center channel) or maybe event through the unused heater channels.

The lines are 5/32 nylon fuel lines if that matters.

[kilgojr]

doesn't matter where you run them as far as the SCCA goes. The only thing you have to do is:

A) if you run them inside the body they have to be braided stainless
B) if you have exhaust components around the fuel lines or fuel filter it is advised to have a heat shield between the exhaust and lines, but its not mandated.

[JohnW8]

I sure wouldn't want fuel lines in the car with me. For RallyCross I don't think I'd want nylon lines under the car unless they were shielded somehow to protect from off road damage.

[kilgojr]

I sure wouldn't want fuel lines in the car with me. For RallyCross I don't think I'd want nylon lines under the car unless they were shielded somehow to protect from off road damage.

agreed.

[TouringBubble]

They have to be braided stainless? These are essentially hard lines ... I don't see how braided would be better. These lines seem very robust and could take most impacts I think ... maybe not the entire car's weight on a sharp rock or a fast travelling piece of metal, but sticks and rocks flying up shouldn't matter. The recess in the pan is about 1.5" across and deep and at the outer edge of the pan. I don't see much making it in there.

[TouringBubble]

you can see the recess in this pic ... http://www.rubyrestorations.co.uk/wp...1/IMG_0552.jpg. It follows the outer edge of the pan where the body bolts are.

[kilgojr]

From TT rulebook

10.23. FUEL AND OIL LINES
All fuel and oil lines, including gauge and vent lines, that pass into or through the driver/passenger compartment, shall be of steel tube,
metal braided hoses or bulk headed.

[TouringBubble]

Well, I will just have one other thing that's not legal. lol

[kilgojr]

Well, I will just have one other thing that's not legal. lol

Does it not matter for Rally rules either? I'm pretty sure the same rule applies to the Solo rule book as well. I haven't looked, but wouldn't you want to make sure before you do it? Or I guess if you aren't going to be doing any National stuff it won't matter.

[kilgojr]

Okay, I looked it up.

Modified category
Pg. 30 Rallycross rulebook

9. Any fuel system may be used provided gasoline, E85 or diesel fuel is used. Any NON-STOCK fuel cell, filter or pump located in the passenger compartment must be shielded by a metal bulkhead. Any fuel lines running through the passenger compartment must be of metal or metal braided construction.

[TouringBubble]

Dammit ... I didn't know there were fuel line rules in the rallycross book. SCCA doesn't like composite lines I guess. Thanks for checking ...

Maybe I'll run them through the cage as a bulkhead ... =P

[e30Racer]

I would run them on the underside of the car in the recess. Its the easiest. And simple is better.

[w. leavitt]

Can't you run them inside of a piece of steel pipe as a bulkhead?

[TouringBubble]

I'm not sure I have the room for a steel pipe. there isn't much space in a VW with a cage and aftermarket seats.

[JohnW8]

you can see the recess in this pic ... http://www.rubyrestorations.co.uk/wp...1/IMG_0552.jpg. It follows the outer edge of the pan where the body bolts are.

I wouldn't have an issue with this if I was a tech inspector for SCCA Rallycross.

GM uses the nylon lines as a weight saver /cost cutter over hard fuel lines. IF you need some I have stainless clamps for mounting fuel lines to a flat surface. They're all yours. I'll check the size when I get to the house.