Engine/Power - EJ25T (STI and 2006+ WRX) Discussions about the USDM 2006+ WRX and WRX STi 2.5 liter turbo flat-four.

Twinscroll header for BW s366

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Old Nov 7, 2008 | 02:43 PM
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Twinscroll header for BW s366

Here are some pics from what I got done today and last night. This is the pass side runners. Just need to bring the driver side runners over and figure out the convergence angle and make the collectors.





Old Nov 8, 2008 | 01:24 PM
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Here are some more pics, this is where im at as of today.




Old Nov 9, 2008 | 12:06 AM
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Wow nice, which I would just take my time and get behind my mask and at least attempt to learn how to tig. I wook a class for arc and mig, but I want to be able to tig, looking good

-Gio
Old Nov 9, 2008 | 01:07 AM
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Thanks, here are the pieces installed. I decided to install it and then do the collectors that way i can eliminate any kind of play or misalignment. And in doing so I wont be including any lame flex bellows or slip joints or any other kind of "bandaid" that might fail or cause problems. Also wanted to make sure my little jig with the clearences for the oil pan and oil filter worked and the header wasnt touching or really close to anything.
Old Nov 9, 2008 | 01:10 AM
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nice job hope everything works and you make good power
Old Nov 9, 2008 | 01:57 AM
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Damn that looks like some process piping, even pre beveled with a nickel land like your gonna do a 100% pipe weld. I assume thats not gonna be the case right? I don't see any gap. What kind of metal, 304?
Old Nov 9, 2008 | 09:28 AM
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yes there will be full penetration hence the reason I beveled everything and i will be back purging to ensure strong/clean weld. Yes its 304.

I didnt leave a gap because its beveled, the thickness at the bevel is around .05 or so, so getting full penetration shouldnt be much of an issue.
Old Nov 11, 2008 | 12:50 AM
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Here is my first collector. The jig worked very well, on the first piece i had to play around with the clamping and in doing so i had to adjust the tube a couple times and so the cut didnt end up perfectly straight like the other. But hey, I think i came out pretty good for the first one. So on the second one there shouldnt be that tiny slice of gap between the 2, which is negligable since it will be welded any how. But anyways on to the pics.



Old Nov 12, 2008 | 01:00 PM
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SICK bro.... your awesome
Old Nov 12, 2008 | 04:20 PM
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lol...thanks
Old Nov 25, 2008 | 01:55 PM
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OKay so got my new torch set up and sat down and took my time with this one since i wasnt busy doing other things. I believe the pics speak for themselves.


Old Nov 25, 2008 | 03:45 PM
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Heres the second collector. root pass ran about 130 amps then backed it off to 120 amps for the second pass. ran a faster pulse and not as spaced. This was pulsed with my foot and not the machine.

Old Nov 26, 2008 | 09:24 PM
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Old Nov 26, 2008 | 09:39 PM
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mucha bonita senor, very beautiful. look forward to seeing your completed set!
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