I did a test with my copper tubing. I put a piece of it in a vice and then bent it all directions. It didn't crack.
I had to really clamp it in the vice because it came out. This flattenend the end of it. And, after a lot of bending
it back and fort it finally broke.
My gut feeling says it broke a little earlier than an iron pipe would. But it took a LOT of bending to get it to break.
It was a lot more bending than what these pipes would endure when mounted under a car.
Add to this that these pipes are sold as gas-lines (the stuff you cook with, not the fuel) for campers and
caravans. Campers and caravans vibrate a lot, I can't imagine that these lines would be allowed to use as
gas-lines when they have a habbit of breaking.
Now, my project. I finally decided on this setup:
The pump should always have enough fuel because the 6mm tank outlet only has to provide the used fuel. Which
should be even less then with the original VW engine.
The only problem which could be encountered is fuel
warming up. But, the fuel doesn't spent much time around the engine, so it doesn't really get the change to
warm up (the fuel rail is also isolated with rubber). Furthermore, my copper fuel lines will act as coolers.
But I will monitor the temperature.
This is how it looks like in the nose of my beetle:
As you can see it's easy to check for hot fuel, I just have to open the front decklid and feel the 22 mm pipe.
Some more text and another picture on this
site.
More text an pictures on my fuel lines
here.
Thanks for all your thoughts and suggestions.:thumb
Greetings,
Gerrelt.
[ Edited on 9/8/2006 by gerrelt ]
[ Edited on 9/8/2006 by gerrelt ]
