Welding A Manifold
 

hey i had a few questions. Do you think i could just mig weld a manifold together instead of tig? I mean will it be able to do just as good a job?

Also, where do you guys get the exhaust header part that bolts to the block itself?

thanks

Re:Welding A Manifold
 

just weld that manifold up, it doesnt matter what type of welds you use! as long as they are strong,

As for the flanges they can be got from BMC racing from this site, from what i have heard he is the ----!

Re:Welding A Manifold
 

that's true about welding it up, but i want to make sure the weld is strong. I have a lincoln 135 P and i want to make sure i get good penetration so that I can get a good weld. Hate for the manifold to heat up, crack, and there's goes the turbo. I was planning to just use the flux cored wire.

Re:Welding A Manifold
 

I dont think there is many tig welders on this site, most use the lincoln mig welders, were all pretty ghetto here so we use what comes to hand first ;D

Re:Welding A Manifold
 

oh! and this is a thread where BMC is selling there flanges ;D as from the pictures you can tell that they are really good quality!

https://www.homemadeturbo.com/forum/...threadid=16448

edit: oops forgot to add the link :P

Re:Welding A Manifold
 

TIG welders are superior for pipework however, they don't cause as much warping and the melt-through is more easily controlled.

EDIT: Of course I meant TIG, typo!

Re:Welding A Manifold
 

umm i think youre thinking of tig... mig aint bad at all tho

Re:Welding A Manifold
 

I welded mine up with a mig pak 10, it's a little smaller than your 135, I used it gasless to do the thick stuff and I kept the welds going as long as I could so the heat would stay in the metal and the penetration would be better, I did 2 or 3 passes, it's solid as a rock, haven't ran it tho, should be running in a few days. When I was done I took it to the machine shop and had the flanges planed to make sure they were perfectly flat, cause it did warp a bit when I was welding it up.

Neil

Re:Welding A Manifold
 

I was going to get mine tig welded, but desided I didn't want to pay a welding shop $60 to do it, so I just used a 220 welder and it worked great....and it was free! Remember, its a homemade manifold, tig welds REALLY arn't going to help your air flow much anyways. In fact, my welds didn't even bead up on the inside of my manifold, and if yours do, use a dye grinder.

Re:Welding A Manifold
 

Many welding topics have been covered around here. Go with the MIG (that would be including shielding gas). I would ARC weld before I wire welded a manifold. What materials are you using to fab this thing?

Re:Welding A Manifold
 

I learned to weld from a guy who has a bachelors in welding. Yup that's right, four years of learning to weld. Plus he works for Miller. According to him, for the most part anything you can do with a TIG, you can do with a MIG. But most of the time the MIG is more practical. MIG the fucker.

Re:Welding A Manifold
 

i would buy the lincoln arc 220 welder but bah i h8 arc welding. Took a 3 month class and i sucked at welding even butt plates. As for materials. I was just going to use mild steel. Or should i go with something else?

Also shielding gas. For stainless am i suppose to use 100% argon or 100% co2? Keep hearing different opinions

Re:Welding A Manifold
 

I like those old school lincoln arc welders, every barn/shop has one. They aren't very efficient, but work well for the general need. My suggestion was against using a basic wire feed welder.

If you are doing a manifold, most people use MIG with shielding gas. Mild steel requires the basic 75 argon/25 co2 mixture, 100% co2 is also possible.

If you are going with straight stainless steel, more argon gas is required to displace the welding atmosphere to a zero oxygen level. What exactly do you have already setup?

I would suggest using 16ga to schedule 40 for the bends, this of course is dependant on the setup you are going for (once again). Check out the Weld-El bends, there are some links on here for the parts to buy. I will try and provide you with some links later to give you a better direction on where to go.

-ryan

Re:Welding A Manifold
 

Hey fellas, been checking out the site for a while and just registerd to add my 2 cents in the forms as for the welding, just got out of college for welding technology, 75 / 25 mix would be our best bet for MIG on mild steel, and 100% for TIG welding stainless steel. it's most praticle to use a MIG welder, but it's all user preference, TIG is really good for the fancy ----, but for your manifold, MIG will do the job.

Re:Welding A Manifold
 

Hey man, welcome to the forum. Please stick around, I'm going to be making some sticky'd fabrication threads and I could use the help of some pros.

Re:Welding A Manifold
 

sure thing man, let me know when you get the threads up and runnin.

Re:Welding A Manifold
 

That's awsome dude, I need to get motivated and do that ----. Feel free to hit me up on aim - quadnie

First we start he fabrication threads, next we conquer germany!

Well maybe not, but it was worth a try.

Re:Welding A Manifold
 

yeah so basically what everyone is saying is: Mig it, but don't use a crappy hobby flux cored welder, trust me it won't work. Use the gas kind.