I am planning on doing an engine swap and need a TIG welder. Well, I am weighing the pros and cons of having one, I guess I should say
So I see that this is probably an ideal welder for me:
I've already done a great deal of research. perhaps years of it. I've seen all the insides of the chinese welders and read about the terrible things that happen. So I just want to double check on the forums one last time- is this really my best option? And if so, I wouldn't mind a little help picking out some accessories for this welder, and selecting the proper rods for what I want to do. I am sure I will want extra "cups" and more tungsten. I know I need green and red tungstens, but the rest escapes me. I have used welders before but always somebody elses welder, and they had all the spare cups and things laying around for me to select from and try.
here is a breakdown of my engine swap:
1. make engine mounts. I know I want some kind of steel but I have no idea what 'type' of steel. Nor what is acceptable (I am not a metallurgist)
2. transmission mount: probably from the same material as the engine mounts.
For #1 and #2, I would like some kind of recommendation for what to ask for from a supplier. I.e. "I need some oval stainless 321 (or whatever) with 0.335" thickness ... " And then it would be cool if someone could tell me how I am going to bend and cut that steel, i.e. what other tools will I need (bandsaw, chop saw, sawzaw, how is it done these days?) Motor will make around 500-600 ft.lbs of torque so it needs to be beefy.
3. exhaust tubes, I am welding cast iron manifolds to stainless plumbing (probably sources from a diesel truck in the junkyard). I've had success using a mig welder for this application, no issues there. But I would like to try a tig welder. So again, what sort of "rod" will I need, and how is that materials "dealt" with (sawzaw?)
4. The downpipe and associated exhaust tubes: I've seen alot of "pretty" stainless welds. I have tried welding stainless in the past with a tig welder and had limited success. It definetely wasn't pretty. I believe it was due to my over-heating the metal. That said, Maybe I was using the wrong stainless. This is where my lack of metal understanding comes into play. I am using a turbocharger so the exhaust temps will get fairly high (perhaps 1200-1300*F where it comes into contact with the first length of tube, or hotter) so the quality is important. I just don't know enough about it yet.
5. aluminum intercooler plumbing- I have this covered. I can weld aluminum very well so I am not worried about this one bit. However, again, I never had to buy rods for aluminum. I would love an explanation for what sort of aluminum rod to buy.
6. chassis work. I need to weld some supports and various items, like nuts, to the chassis for holding structures. I need to cut and box in the crossmember for clearing an oil pan. Its steel again, and once more I am not sure what kind of rod to use, I guess thats the main issue. I want to make the core support removable so I can swap engines quickly. The exhaust will all be V-banded. I could go on but I think that covers the main points: rods vs metal "numbers" (i.e. 321 stainless vs mild steel and so forth) are my main concerns. thanks for reading all that!
And if anybody can think of a cheaper welder that will do all of that, I am all corn. Ears
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