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Old 01-07-2013, 01:25 PM   #251
DeleriousZ
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Quote:
Originally Posted by Scargod View Post
How do you deal with stalactites inside the tube? I'm sure they have a name, in welding.
Does a good welder not have a problem?
Seems I've heard of inert gas being pumped into/through the tubing during welding?
Yep, generally the pipes are purged with argon to provide an inert environment on the back which prevents sugaring/oxidation of the weld.
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Old 01-08-2013, 09:53 PM   #252
TIGWERKS
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Custom muffler I made for my car. Oem sti shaped muffler with 3" mandrel bent perforated core with ceramic packing.








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Old 01-20-2013, 05:21 PM   #253
RockNRace03
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i bought some mandrel bends a while back to build a set of headers for my bug eye project. decided im going to sell it anyways, so im using them to build a set of UEL headers for my friends 2.5rs. pictures arent the greatest and im only about a 1/4 of the way done haha once the other collector i need comes in i'll be able to finish them and see how it sounds
done with 16g 1.75" steel tube




Last edited by RockNRace03; 01-30-2013 at 09:25 PM.
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Old 01-27-2013, 09:35 AM   #254
Subikid90
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Build an axle back for my legacy

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Old 01-27-2013, 10:00 AM   #255
Patrick Olsen
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Quote:
Originally Posted by RockNRace03 View Post
i bought some mandrel bends a while back to build a set of headers for my bug eye project. decided im going to sell it anyways, so im using them to build a set of UEL headers for my friends 2.5rs. pictures arent the greatest and im only about a 1/4 of the way done haha once the other collector i need comes in i'll be able to finish them and see how it sounds
done with 16g 1.75" steel tube

http://i1107.photobucket.com/albums/...psab0ec946.jpg
http://i1107.photobucket.com/albums/...ps84290f9d.jpg
http://i1107.photobucket.com/albums/...ps6132b30a.jpg
First couple picture links aren't working. Third one works.
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Old 01-28-2013, 07:02 PM   #256
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I want custom dual straights on my subie!
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Old 01-28-2013, 10:13 PM   #257
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Quote:
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I want custom dual straights on my subie!


if your in mass i can do it for ya
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Old 01-28-2013, 10:48 PM   #258
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[IMG][/IMG]


3" to a 80 series flowmaster (that was chopped 3 inches to fit) then back out to two 3" tailpipes that are finished off with SRT-8 Jeep black chrome tips
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Old 01-30-2013, 09:25 PM   #259
RockNRace03
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Quote:
Originally Posted by Patrick Olsen View Post
First couple picture links aren't working. Third one works.
thanks! fixed, i think
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Old 05-20-2013, 08:22 PM   #260
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Come on I want to see some more awesomeness!
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Old 06-10-2013, 01:12 PM   #261
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Would it be ok to arc weld an exhaust system. Its inconvenient for me to mig and I cant tig worth a damn.
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Old 06-10-2013, 01:26 PM   #262
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No reason why not. They make some good rods that leave a nice bead too
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Old 06-10-2013, 05:52 PM   #263
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Quote:
Originally Posted by blubug_768 View Post
Would it be ok to arc weld an exhaust system. Its inconvenient for me to mig and I cant tig worth a damn.
But can you stick weld worth a damn? That's the only question. Not trying to be a smart-ass.
There's no reason not to if they are solid welds. However, if you have access to it, I would learn to TIG if I were you. So nice!
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Old 06-11-2013, 01:22 AM   #264
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^ya I'm pretty decent at arc and mig, but I always shock myself or burn holes with tig. I'll practice some more some day.
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Old 06-11-2013, 07:00 PM   #265
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Gonna have to save this thread for when I start working on my own. Love the beautiful stainless here, as well as all the bench-top shots.

Do have some questions relating to people's builds, to give me a chance to plan my own.

What alloys are favored for your exhaust work? Personally, I'd consider marine-grade 316, but maybe that's just because I live in the north-east...

What sort of tuning are you planning into your builds? I figure that hi-flow components are a must, although I've heard that equal-length headers don't work quite as well on our boxers.

Just as a reference, I've got a 2006 outback with a N/A 2.5L, although I'm thinking about rebuilding it with a turbo, or swapping to an STi motor. The exhaust work will probably be part of the rebuild/swap. Still very much in research phase at this moment.
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Old 06-21-2013, 06:30 PM   #266
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Where is an affordable place to pick up stainless piping, bends, and flanges?
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Old 06-22-2013, 01:07 AM   #267
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It's been covered a lot in this thread and forum, Columbia mandrel bends is one, burns stainless is another. Reid Washbon has some nice exotic stuff.
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Old 06-22-2013, 01:56 AM   #268
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Quote:
Originally Posted by BeBop86 View Post
Where is an affordable place to pick up stainless piping, bends, and flanges?
Stainless isn't going to be cheap anywhere. I've used burns a good amount for their collectors. Nice product but you definitely pay for it.
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Old 06-22-2013, 02:17 AM   #269
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How thin would any of you go for a SS system? Im thinking .020 304 for a dp back system. Car doesnt get used on the street but for limited runs. Think I could go thinner and it not get beat to crap? Im trying to keep it as tight to the bottom as humanly possible.
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Old 06-22-2013, 07:06 AM   #270
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Quote:
Originally Posted by BeBop86 View Post
Where is an affordable place to pick up stainless piping, bends, and flanges?
Check out atpturbo.com there the cheapest I've found. i just bought about 500$ worth of aluminum bends for new i/c piping
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Old 06-22-2013, 12:58 PM   #271
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It's going to be impossibly hard to find that wall thickness in anything, even 321 or inconel

Thinness wall available for 304 is 0.035 and you won't be able to find that in a tubing size larger than 2" very easily. 0.049 and 0.065 is pretty standard, both should be okay for what you are looking to do.

You could step up to 321 and to a really tight fitting 2.75" exhaust in 0.035" that's what my plan is...
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Old 06-22-2013, 05:17 PM   #272
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Maybe I can talk someone into making some .020 ss 3in for me then.
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Old 06-22-2013, 06:59 PM   #273
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So you want someone to roll stainless sheets and seam weld it? I don't see the benefit of that and it Sounds expensive to me, better off using 321 0.035 it can handle the heat way better than 0.020 304, it will be too weak and you will risk cracking.
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Old 06-22-2013, 07:33 PM   #274
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Your asking for trouble with .02" tubing. And no one will just make a small amount of that size. You need to order a **** ton of material from a mill to get a special size. I wouldn't do anything less than .035" and it would have to be 321 or inconel.
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Old 06-23-2013, 03:21 PM   #275
scby rex
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Why so thick and why not 304? Its just from the dp back. People are using aluminium for catbacks and this isnt a street car.
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