TFF
Well-Known Member
The high end custom header people should be able to do anything. Ever seen a bundle of snakes Indy exhaust?
This starts to make Pictsidhe's idea look pretty good. Cut/weld/hydroform and than ball ream/finish.Originally each curve was made from two stampings edge welded together.
About bending stainless thin-wall tube. I found this do-it-yourself version had an interesting lesson. If the internal bullet is not well-positioned, the interior of the bend concertinas.That was my best uneducated guess but all I’m getting from shops that roll tubing every day is that it can’t be done with thin wall. I don’t doubt you for a second but it sounds like I’ll have to learn enough about it to be able to do it’s myself if need be.
That would have been done unpacked. Steel bends nicely when hot. There is a knack to getting the radius where you want it. That guy has done that many times.
I have made female molds out of hardwood and used a pneumatic hammer or a riveting hammer with a rounded nylon end.could make female molds of each half of each curve and press a piece of sheetmetal into each mold using a block of rubber then weld the mating halves together.
I did my Norton pipes that way.On my own with heat and a vice.That would have been done unpacked. Steel bends nicely when hot. There is a knack to getting the radius where you want it. That guy has done that many times.
lol, agree, post pics of a successful sand packed tubing bend, lol.Sand method will collapse or tear...take your pick.