DIY SS Bottom Mount Manifold
#21
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Hey I just talk to the head guy at the welding shop, he says to use stainless wire and the tri gas, if you don't want to buy a bottle you could rent one for a couple dollars a month.
#26
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The number 2+3 runners will be done like Stein/18psi etc. Very simple, semi-straight into the collector. Not ideal, for sure, but I didn't order enough straight pipe or bends to make a full on 4 into 1 merge collector mani. Nor do I have the skill or tools etc.
#28
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I'm going to go to airgas today and ask them what they think. I'm pretty sure i'm going to end up running trimix with backpurge of pure argon if I end up migging this mani. I'm really wishing I had just gone carbon for this manifold at this point.
#30
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I'm going to go to airgas today and ask them what they think. I'm pretty sure i'm going to end up running trimix with backpurge of pure argon if I end up migging this mani. I'm really wishing I had just gone carbon for this manifold at this point.[/QUOTE]
well you can just weld it up with your standard mig wire and gas you have, it will work but it wont be stainless anymore, muffler shops do that all day long. you will just have a shinny mani with rusty welds
well you can just weld it up with your standard mig wire and gas you have, it will work but it wont be stainless anymore, muffler shops do that all day long. you will just have a shinny mani with rusty welds
#31
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Lol. I've got the stainless, I want a stainless weld bead =P
#34
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I never used tri mix gas. waste of money. Ive actually never even heard of it untill 18psi's build. For aluminum i love using 75/25 helium! Burns hot and leaves great bead formation (especially with pulse) with a shiny weld to boot. Argon gas with argon back purge. Bring some beer and a little bit of cash we can do it this weekend. (Let me know so i can go snag an alternate tank for purge).
BTW i have been TIG'ing for 1 year @ 60 hours a week.
BTW i have been TIG'ing for 1 year @ 60 hours a week.
#35
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I never used tri mix gas. waste of money. Ive actually never even heard of it untill 18psi's build. For aluminum i love using 75/25 helium! Burns hot and leaves great bead formation (especially with pulse) with a shiny weld to boot. Argon gas with argon back purge. Bring some beer and a little bit of cash we can do it this weekend. (Let me know so i can go snag an alternate tank for purge).
BTW i have been TIG'ing for 1 year @ 60 hours a week.
BTW i have been TIG'ing for 1 year @ 60 hours a week.
I'm not causing trouble by tacking it with regular carbon wire am I?
#38
I've got to say, I am uber impressed that you are able to make those cuts with a hacksaw too, it isn't even one of the high tension frames (which helps a lot for future reference.) I'm surprised the supplies from weirtech were so cheap for SS flanges and SS schedule 10 tube. I'll probably have to order from them, though I am still on the fence of if I want to do it in SS or mild, just because I figure I will be learning as I go, and it is cheaper and easier to learn on mild (though i've got the welding part down... go figure.) Did they sell you the exhaust flange with the bolt holes already sliced for thermal expansion?
#39
I've got to say, I am uber impressed that you are able to make those cuts with a hacksaw too, it isn't even one of the high tension frames (which helps a lot for future reference.) I'm surprised the supplies from weirtech were so cheap for SS flanges and SS schedule 10 tube. I'll probably have to order from them, though I am still on the fence of if I want to do it in SS or mild, just because I figure I will be learning as I go, and it is cheaper and easier to learn on mild (though i've got the welding part down... go figure.) Did they sell you the exhaust flange with the bolt holes already sliced for thermal expansion?
Also, I used stainless weld els and wiertech mild steel flanges together. Use 309L filler rod to join the two with no problems. In a year now, I have seen no rust on my flanges to speak of and the stainless to mild joints have held up fine. It's been done by many people before me. Stainless flanges are 3X times the mild steel price.
#40
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yes, my flanges are mild steel as well.
In retrospect, getting stainless parts at all was my biggest mistake. I'm pretty much decided on paying someone else to tig it for me which adds more to the bottom line of this project.
In retrospect, getting stainless parts at all was my biggest mistake. I'm pretty much decided on paying someone else to tig it for me which adds more to the bottom line of this project.