Ok, I've heard a lot of stuff about fabricating a turbo manifold out of a regular stock exhaust manifold by just welding a steel flange onto the manifold. It sounds like a pretty decent, and solid manner of going about it
My concern is how to actually weld the cast iron.
After a little bit of research, I've found that Lincoln suggests A) heating the material to a range of 500-1200 degrees and keeping it hot during the welding process as well as letting it cool very very slowly, or B) keeping it cool throughout and peening the welds to help prevent fractures
http://www.lincolnelectric.com/en-us/su ... etail.aspx
Does anyone have any thoughts on which would be better for the fabrication of a turbo manifold?
I would think that with a surplus oven from a kitchen and a torch you could get the cast iron into that heat range fairly easily, but that's a lot of heat to be dealing with during the welding process.
My concern is how to actually weld the cast iron.
After a little bit of research, I've found that Lincoln suggests A) heating the material to a range of 500-1200 degrees and keeping it hot during the welding process as well as letting it cool very very slowly, or B) keeping it cool throughout and peening the welds to help prevent fractures
http://www.lincolnelectric.com/en-us/su ... etail.aspx
Does anyone have any thoughts on which would be better for the fabrication of a turbo manifold?
I would think that with a surplus oven from a kitchen and a torch you could get the cast iron into that heat range fairly easily, but that's a lot of heat to be dealing with during the welding process.