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DIY Turbo Discussion greddy on a 1.8? homebrew kit?

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Old 12-31-2008, 05:48 PM   #21
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ceramic coating ftw!
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Old 12-31-2008, 05:52 PM   #22
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Old 12-31-2008, 07:33 PM   #23
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How did you grind down the edges of the weld el's to make it fit into the flange?
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Old 12-31-2008, 09:08 PM   #24
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mild stainless ftw!
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Old 01-02-2009, 03:00 AM   #25
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Im assuming those are Pucci pups Kenzo42- Cheers for the pic
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Old 01-02-2009, 03:07 AM   #26
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Quote:
Originally Posted by m2cupcar View Post
What's the advantage of the ss over mild when using a heavy gauge? I'd think the softer metal would be more resistant to cracking with heat/cool cycles.
that is what my dad was saying as well, but
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Originally Posted by Dark Wanderer View Post
SS don't rust, and it will dissipate less heat in the engine bay.
/\ the rust is what scared me into getting ss

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Nice work 18psi!

Good way to start the new year!
thanx man

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How did you grind down the edges of the weld el's to make it fit into the flange?
they came like that. and they dont fit inside, but we banged them with a hammer/vice and shaped them to fit very snug with the flange
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Old 01-09-2009, 03:22 PM   #27
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Quote:
Originally Posted by TurboTim View Post
Looks good man, I agree homebuilt mani's FTW and that's it's not a log style.

Looks like from the smooshed ends in this pic that the two middle runners will be pointing towards each other?

they will be facing upwards and 1-2 will be joined with 3-4....from how we planned it nothing should be facing each other at all.
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Old 01-09-2009, 03:31 PM   #28
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I was in a discussion on a V-twin forum, and it seemed the consensus was equal length on matched cylenders - so 1&4 should be equal to 2&3, but the difference between the two is less critical.

I've seen SO many headers break from heat cycling... that I honestly don't know where I'd start if I were making one. Cast, mild, stainless... they all break and keep breaking. It's depressing.
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Old 01-09-2009, 03:47 PM   #29
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well see how this one holds up. My dad ordered a 450a lincoln mig/tig/etc and will be welding this really thoroughly with a tri mix of gas, hopefully it will be enough to keep it together. from how thick/strong the runners are, I will honestly be surprised to see this crack..it is RIDICULOUSLY strong
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Old 01-10-2009, 01:51 AM   #30
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Take lots of pics, I'm pretty interested.
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Old 01-11-2009, 01:18 PM   #31
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Quote:
Originally Posted by 18psi View Post
they will be facing upwards and 1-2 will be joined with 3-4....from how we planned it nothing should be facing each other at all.
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Old 01-13-2009, 10:02 AM   #32
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You've got guts to build w/ SS, PITA to cut, welds nice though.

What are you using to do the cutting? I went through a lot of carbide bits building IC pipes out of that stuff...
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Old 01-13-2009, 10:36 AM   #33
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Nice build going there! I hated cutting the SS for mine. Never again, unless I get the plasma cutter that I promised myself.
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Old 01-13-2009, 01:53 PM   #34
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I've helped (in that I can't weld) on a similar one, the cutting was primarily chop saw work, with a bit of (belt/disc) sanding. But for shaping, I use $0.10 stones as much as I can, since the bits work but don't last forever.
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Old 01-13-2009, 04:50 PM   #35
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Badass. Needs more finished pics. Only thing I would have done differently would be to use a thicker head flange and mild steel bends. I hate SS.
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Old 01-13-2009, 09:06 PM   #36
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thanx guys. we actually worked on it some more today, as my dad finally got his welder in. welded everything up and cut holes for the other 2 runners, as well as welded runner #2 on. we're really not rushing this since I have a few other things I need to wait for like the ss oil line that I had to return due to ebay seller being a dumbass. Will update with more pictures tonite/tomorrow
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Old 01-22-2009, 01:51 PM   #37
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Really nice, am convinced I have to build my own mani now. Can't want to see finished pics.
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Old 01-23-2009, 02:54 AM   #38
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Quote:
Originally Posted by gospeed81 View Post
Really nice, am convinced I have to build my own mani now. Can't want to see finished pics.
Ditto

What was the material cost here if you don't mind me asking.

Looks awesome.
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Old 01-23-2009, 02:59 AM   #39
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keep forgetting to take more pictures
I'll try not to forget tomorrow.
els are roughly 6 bux a pop. flanges are 20 and 10...something like 100 for materials not including welding machine wire and tri-mix gas.
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Old 01-23-2009, 03:34 PM   #40
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I still wonder how it'll hold up long term. I mean, it must be possible, but it scares me nonetheless.

Also, if you drive by UPS, wave to my brake pads for me. :-)
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