04-04-2012, 11:35 AM
Well, I've only ever used Arc, as has Darren...
It's not so much harder to weld, it's just different and tends to crack whilst cooling, that's the main problem, you can probably use MIG on it if you give it enough amps to penetrate... Don't be fooled by a MIG giving out a lovely clean bead, but laying it on top, rather than penetrating, or the turbo will fall off...
6mm is more than enough tbh, that's what my plates are made out of, they're a little warped, nothing a quick bit of action with a grinder couldn't fix mind... When welding them just make sure you don't get TOO much heat into it, that's what usually warps them...
If I were you, I'd stay away from welding cast... It can go really well or be a complete fail... IMO it's easier to make it bolt on (Then nothing is permanent, also...) once it's welded, that's it...
It's not so much harder to weld, it's just different and tends to crack whilst cooling, that's the main problem, you can probably use MIG on it if you give it enough amps to penetrate... Don't be fooled by a MIG giving out a lovely clean bead, but laying it on top, rather than penetrating, or the turbo will fall off...
6mm is more than enough tbh, that's what my plates are made out of, they're a little warped, nothing a quick bit of action with a grinder couldn't fix mind... When welding them just make sure you don't get TOO much heat into it, that's what usually warps them...
If I were you, I'd stay away from welding cast... It can go really well or be a complete fail... IMO it's easier to make it bolt on (Then nothing is permanent, also...) once it's welded, that's it...
