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Old 02-18-2011, 09:37 PM   #1
prokaw875
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Member#: 143318
Join Date: Mar 2007
Chapter/Region: NESIC
Location: North Eastern, Conn.
Vehicle:
GG Outback Sport
Version 8 EJ207

Default twin scroll uppipe material?

I'll make it short. I have a custom waterjetted jdm twinscroll header flange coming my way to build a custom rotated uppipe that will bolt on to the jdm ts header and have a t4 ts flange on turbo side.

What are some tubing options for me? Material, o.d., I.d., thickness...? What's the most cost effective material and what would be the cream of the crop material???

Thanks
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Old 02-19-2011, 02:22 AM   #2
wantsti
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Inconel is the best. Then 321 ss is very good too
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Old 02-19-2011, 06:27 PM   #3
prokaw875
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How about diameter n wall for a rotated 35r twin scroll setup?
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Old 03-07-2011, 11:14 PM   #4
siikfast
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Well first, is your header split for twin scroll, cuz if its not, just run a t4 non split flange, whats the point, thats somewhat the reason for the turbo to be spilt, Second if it is 2 - 2-1/2" max 16ga 321 stainless for each run into the split works good, But if your not running a split header, then, if your uppipe is 2-1/2" get a transition to 3" reduce from vibrant

http://vibrantperformance.com/catalo...oducts_id=1078
works good, but is 304.

Add Bracing, Cuz when i use t4 split flanges, there on bigger frame turbos, and they weigh 40lb+ (GT4294r's GARRETT, not obx, jdm style ****)

Its not cheap to be cool!!
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Old 03-11-2011, 08:46 PM   #5
prokaw875
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Version 8 EJ207

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Okay I dont wanna seem like a dick but yes, my header is "split" as you call it. Like stated I have a JDM Version 8 Twin Scroll set-up. Stock "split" uppipe, header, into the turbo. Now Im building a "split" aka Twin Scroll uppipe that bolts onto the stock JDM Version 8 header and will be long than stock(same piping size... 1.75" each tube) into a T4 divided flange.

Quote:
Originally Posted by siikfast View Post
Well first, is your header split for twin scroll, cuz if its not, just run a t4 non split flange, whats the point, thats somewhat the reason for the turbo to be spilt, Second if it is 2 - 2-1/2" max 16ga 321 stainless for each run into the split works good, But if your not running a split header, then, if your uppipe is 2-1/2" get a transition to 3" reduce from vibrant

http://vibrantperformance.com/catalo...oducts_id=1078
works good, but is 304.

Add Bracing, Cuz when i use t4 split flanges, there on bigger frame turbos, and they weigh 40lb+ (GT4294r's GARRETT, not obx, jdm style ****)

Its not cheap to be cool!!
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Old 03-11-2011, 08:50 PM   #6
prokaw875
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edit Guys. Going With 321 16gauge 1.75 Stainless Thanks All
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Old 03-26-2011, 08:37 AM   #7
ghettocrxsi
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Hope you brace that mani or you are good at tig welding. 16g is fun to work with.
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Old 03-28-2011, 11:57 PM   #8
seanathanq83
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my builder is using 304 sch10 for all of mine and its all getting tigged
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Old 03-29-2011, 10:24 AM   #9
GEE-OTTO
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Quote:
Originally Posted by seanathanq83 View Post
my builder is using 304 sch10 for all of mine and its all getting tigged
Nice Scd10 pipe 321 will get the job done and like mentioned above BRACE IT! You would be surprised how heat and torque bear on a UP.
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