I am doing some sand bent exhaust headers for a race car. After a few tries and figuring out the tricks, they are coming out quite well. Bending the tube without kinks is the the easy part, once you figure it out - getting the bends right so that the header pipe fits is the (very) hard part...
Anyway, I am using a No. 8 rose bud tip (victor), running at the recommended
10 PSI acetelyne and 20 psi Oxygen. I normally just keep small tanks - one size up from the little carry-around ones - and went through the gas like butter... What kind of "on time" could I expect from the larger sizes of tanks?
Thanks, Brian