anyone know how strong of an arc welder would be needed to weld a straight pipe for my 7. also what size pipe will hold the awesome heat and strength of the 7?

 

I use a 70A welder, but an arc welder is really the wrong kind to be using for exhaust. It can be done, but takes a LOT of practice and a very steady hand to avoid blowing a hole in the tubing. The best type of welder to use a is a wire feed gas welder (mig). They can be rented at most rental stores, and are significantly easier to use than arc units.

 

whats the price on one of these welders? where can i get one?

 

Arc or mig?

I've seen arc welders go for $150 (Canadian) but mig welders ususally go for at least $300 (Canadian).

 

I have just a wire feed welder, its a small TSC model, but can this be used to weld exhaust pipe? also can exhaust pipe be brazed? Will a brazed seem be to weak to handle the exhaust heat? These are my only free ways of welding exhaust pipe and I am to cheap to rent a mig welder. Thanks for the help