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Old 01-28-2008, 05:17 PM   #1
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Default DIY homebrew manifold-Déjà vu anyone?

i know there were lots of homebrew mani's built on here and i am building my own as well and just want some input and discussions on materials and choices i made...

i have no fancy cad drawings or anything other than an idea in my head and a few scetches on paper and i am not sharing those since im as talented at drawing as lindsay lohan is at acting...so you just have to wait for a rough sample to be made...

my first mani will use the stock head flange and 304 stainless runners...
i have not seen anyone have the same design as i have in my head, so its really hard to describe what it is that i want to build, but hopefully everyone will see soon

Outside Diameter 1.900"
Wall Thickness 0.145"
Inside Diameter 1.610"

basically its advertised as SCH40 1.5" but the inside diameter says it is 1.610" not 1.5", anyone have any input on this, is this normal, do they just call it 1.5" to round it up?

i hope to have it roughed up by the end of feb. and then welded up nicely by someone who knows what the hell they are doing...

any suggestions on where to get 304 1.5 butt welds for a good price feel free to contribute...
thanks
Dan
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Old 01-28-2008, 05:34 PM   #2
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Are you doing this to save $$$, to make a better manifold than is available, or doing it for the sake of doing it?

I have no answer to your question, just curious.
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Old 01-28-2008, 05:37 PM   #3
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there is always something better out there...i wanna save money and do it right
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Old 01-28-2008, 06:51 PM   #4
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You probably won't save much going this route over buying a used BEGi or FM manifold. That's the reason I'm rocking the BEGi unit, it was only about $80 more expensive. Of course, if you are using a stock flange that cuts the price considerably.

Acestainless.com will have your weld fittings, mcmaster has them too.
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Old 01-28-2008, 06:57 PM   #5
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http://www.homemadeturbo.com/forum/i...?topic=83018.0

He will make a BP Flange provided a gasket. He has a B6 flange in stock.
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Old 01-28-2008, 07:01 PM   #6
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Quote:
Originally Posted by Arkmage View Post
You probably won't save much going this route over buying a used BEGi or FM manifold. That's the reason I'm rocking the BEGi unit, it was only about $80 more expensive. Of course, if you are using a stock flange that cuts the price considerably.

Acestainless.com will have your weld fittings, mcmaster has them too.
Using mild steel you can make a manifold for 50 bucks.
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Old 01-28-2008, 07:05 PM   #7
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mcmastercarr for weld-els. They're expensive though. :(
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Old 01-28-2008, 07:18 PM   #8
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acestainless is cheaper for butt welds, SS or mild...
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Old 01-28-2008, 09:15 PM   #9
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http://www.apexsupplyco.com/
Check if you have one of these local to you. They can get both mild and stainless sch 40 weldels. You'll have to compare shipping and price difference and all that but they can get both. My local one keeps mild fittings in stock.
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Old 01-28-2008, 11:08 PM   #10
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I wouldn't recommend mixing mild with stainless steel. I'd recommend just sticking to a JGS Tools turbo manifold kit.
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Old 01-28-2008, 11:26 PM   #11
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chad, i see that they are only in TX and LA, how are they local to you, they have some locations not listed on their site? i wonder if they got one near me?
never mind, found alternate source of information
http://www.macraesbluebook.com/compa...oup.cfm?l2=920
none in NC, bummer


weasel, why go with JGS when i can source same stuff for less? doesnt make sense to me...actually much less
if i got stuff from JGS i would still have to source stuff in addition to their advanced kit to make the mani the way i want it...
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Old 01-28-2008, 11:28 PM   #12
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Holy crap...

http://www.jgstools.com/turbo/index2.html

$179.99 + $18.00 shipping... Damn wish I would've seen that before buying all the pieces..
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Old 01-28-2008, 11:54 PM   #13
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I can get 3/8" head flanges for like $24 a piece in mild steel plus shipping. It would require a order of like 10 though. We could also order the turbo flanges at the same time real cheap.
$25 Head Flange
$8 Turbo flange mani side
$8 Turbo downpipe flange
$18 2 90s Sch 40 (could be less, can't remember)
$24 2 Ts Sch 40
$10 misc box tubing for log to turbo flange
So like $93-95 shipped without any shipping and high prices on the pipe fittings. I see no reason why materials should be over $110 after shipping.

Dan,
Not sure how/why they're local to me but they are, i went there like 5 months ago. It was called apex supply supported by home depot. Maybe i posted the wrong link.
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Old 01-29-2008, 12:21 AM   #14
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my order list looks a little different since im not building a log style, mine is something like this..
$25 Head Flange-mild
i have the Turbo downpipe and mani side flange-mild
$16 two 38mm WG flanges-mild
$30-4x Sch 40 45* butt welds-SS
$37-5x Sch 40 90* butt welds-SS
$22-2 ft. Sch 40 pipe-SS
so like $130 plus shipping

pipe and butt welds are 1.610" ID
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