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| GRN-WGN |
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hey guys i am about to start my turbo install but want to do all the piping and exaust work myself. will leave the manifold to the pros though. what i need to know is how many amp should a mig welder have to do pipe work. any other advice with buying a mig welder at all? ps i will be using 3'' stainless steel pipe
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| aaron_hogan |
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...then wouldn't you want a TIG to do stainless?
_________________ EA SVO Fairmont Ghia - Recaros, Bilsteins, Sunroof, SVO rims and body kit, Genie headers, DBA rotors. T5 steeda triax short shifter. 3.27 lsd. (EL 4.0 ported/polished, rebuilt and balanced, Dev5 cam. J3 chipped EL ecu, AU injectors). |
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| GRN-WGN |
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lol fair enough. i have only ever welded alloy and mild steel. so a tig is the only welder i can use?
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| Dansedgli |
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Cant he use a mig and stainless wire?
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| turbotrana |
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Get a TIG for that. You can control the weld and get nicer welds.
A mig is for rough work and gives lots of build up and splatter. Mig is alot quicker but I use it for heavier stuff. For lighter stuff like exhaust and intercooler piping I always use TIG. Most Exhaust guys use MIG for its speed.
_________________ Turbo 6s rule |
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| GRN-WGN |
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any idea how powerful u need to weld 2-3mm thick piping? might just end up hiring one but would be so handy to have my own.
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| schnoods |
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If you are going to use 3" stainless piping (i assume its going to be light gauge ie 1.2-2 maybe 2.4mm wall) then i wouldnt weld it with a mig unless it is a fluxcored stainless wire. If you were to weld it, It MUST be purged internally otherwise it will look like a hairy caterpillar has settled in your pipe. This is the weld metal reacting with the atmosphere (without any shielding gas internally) and is brittle and a flow restriction. And if your welding is lumpier in a few spots, it can break off and end up going down track.
I'd stay with aluminium so you can use a thicker wall pipe. Any mig can run aluminum if you use teflon liners, straight argon shielding gas. Or just go to a joint that does Marine fabrication and repairs and get em to do a quick weld here and there for a carton.
_________________ Because of Beer, Thirst is a Beautiful Thing! |
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| schnoods |
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{USERNAME} wrote: any idea how powerful u need to weld 2-3mm thick piping? might just end up hiring one but would be so handy to have my own.
Around 22 volts depending on the mig
_________________ Because of Beer, Thirst is a Beautiful Thing! |
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| CHEF |
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Use alloy for your IC pipes, its about the same $ as stainless and get it TIG'd up at a shop... usually charge 20 per weld
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| GRN-WGN |
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where did u guys get ur piping?
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