Fabrication Everything From JBwelded/Fluxcored downpipes to Equal length SS Manifolds.

First Noob post advice on header build

Old 04-27-2009, 02:28 PM
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Default First Noob post advice on header build

First off great forum! I found this place through someone on VWvortex.com and have been happily lurking ever since.

Finally got up the guts to attempt a header build for my rabbit pickup. I used these pre formed 2-1 collectors. I was wondering what the best way to weld them all up is going to be? They are formed but it isn't a perfect fit. There are small gaps between the pipes and some situations where there is a small air gap at least 180 degrees around the pipe. I was thinking maybe hold it tight with a vice grip and weld up a section then move to another and repeat. Or maybe just glob a bunch of weld on and deal with it? Should I just weld in between the pipes? Any general comments on what I've got going so far?

Thanks in advance.

[IMG][/IMG]
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Old 04-27-2009, 04:06 PM
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nice
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Old 04-27-2009, 04:53 PM
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yeah it looks brilliant.
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Old 04-27-2009, 04:53 PM
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a little gap is good it provide a stronger weld.
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Old 04-27-2009, 06:22 PM
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Originally Posted by sparklingwiggle View Post
a little gap is good it provide a stronger weld.
With a lap joint?
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Old 04-27-2009, 07:32 PM
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The weld material is stronger than the base metal.

Header looks damn good.
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Old 04-27-2009, 08:46 PM
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Pretty nice looking header.
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Old 04-27-2009, 08:48 PM
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were did you buy those merge collectors
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Old 04-28-2009, 04:17 AM
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If you're using filler a little gap should be fine. Once you get a weld started you'll see both ends wet and then you just stick the rod in and the two become one. With TIG anyway. I don't know a lot about MIG, but it seems to fill in gaps even better.
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Old 04-28-2009, 05:31 AM
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Thanks for the info folks. I will be TIGing it. I ordered the collectors from Columbia River Formed Collectors - Columbia River Mandrel Bending but they had someone else drop ship them to me I forget whom.
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