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Old 10-13-2019, 06:38 AM   #1
Hyper
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Member#: 15822
Join Date: Feb 2002
Location: MOCKBA
Vehicle:
1999 WRB GM6
2.34 LR destroker

Default Blouch manufacturing defect

Upon inspecting my 1.5 TS XTR I found two tiny holes under the coolant ports, which are clearly result of machining error when they were making holes for the oil drain adapter, they went too far and penetrated the cartridge housing

I would not care, if it wasn't in the oil drain section, and this is the cause the turbo and surroundings was all black from oil vapor, I also wonder if it was the case of my mysterious oil disappearance






I feel welding this might be troublesome, because its iron that has been sitting in oily environment and sucked it in good

Would JB welding be ok for this? Don't know how hot this area gets
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Old 10-13-2019, 01:54 PM   #2
stu
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Member#: 25768
Join Date: Oct 2002
Chapter/Region: RMIC
Location: CO springs
Vehicle:
2003 GEN2 GTX35 40++
SL performance, 2.34 LR

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Has it been leaking?
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Old 10-13-2019, 03:06 PM   #3
Hyper
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Member#: 15822
Join Date: Feb 2002
Location: MOCKBA
Vehicle:
1999 WRB GM6
2.34 LR destroker

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upon further inspection turns out it doesn't connect to the oil galley, so I am not even going to bother with it
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Old 10-13-2019, 03:42 PM   #4
Subie_
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Member#: 419354
Join Date: Apr 2015
Chapter/Region: MAIC
Location: Delaware
Vehicle:
2007 STI
Crystal gray metallic

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Porosity is a common defect in casting processes. Yours appears to be aesthetic.
I always put a note on my drawings instructing the foundry to fill non-structural voids with metal putty to keep our incoming inspection from quarantining my parts for visual defects.
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Old 10-13-2019, 04:02 PM   #5
WRXnick16
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Member#: 447898
Join Date: May 2016
Chapter/Region: BAIC
Location: W Sac, CA
Vehicle:
2016 WRX (traded)
2019 STI CWP

Default

A bit off topic, but how have you liked the turbo? I've seen very little feedback on the twin scroll version.

I'm debating on going this route when I finally start modding the engine. My car is a daily driver so I don't care about huge power figures, but would prefer the responsiveness and efficiency of a twin scroll setup. In all likelihood, I'd even keep the stock intake & catback since I'm in California and they're efficient enough.
  • OEM JDM TS header & uppipe
  • TS catted downpipe - probably the dual cat HKS version & OEM for smog
  • Blouch DOM 1.5 XTR TS
  • Cobb flex fuel kit - because 91 in California is terrible
I'm hoping that the EJ257's extra displacement combined with TS, aftermarket downpipe & ethanol should make for a nice & responsive daily driver. I have no power goal in mind, but I expect in the range of 350-400 whp with a nice torque curve on E85.

I looked into obtaining an S series turbo for its size and OEM reliability, but they're very cost prohibitive.

I found a VF58 (ST14411ZR010) for the low price of $3,380 plus shipping.. I believe this was the turbo used on the S206 & S206 NBR.
http://www.jp-carparts.com/subaru/pa...e=ST14411ZR010

Another option is from Tomei called the T380B-EJTS. This turbo is the result of collaboration between IHI & Tomei aiming to improve the top end of the standard turbo. It's rumored that this is the same turbo used on the S207. This is around $2.5k + shipping.
http://www.tomei-p.co.jp/catalogue/t380b-ejts/
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Old 10-13-2019, 05:20 PM   #6
Hyper
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Member#: 15822
Join Date: Feb 2002
Location: MOCKBA
Vehicle:
1999 WRB GM6
2.34 LR destroker

Default

best TS bolt on turbo on the market, period
I have tried PE, HKS, Tomei, all crap
This baby really delivers, especially after I ported it

I only wish build quality was higher

Last edited by Hyper; 10-13-2019 at 06:07 PM.
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Old 10-13-2019, 05:34 PM   #7
WRXnick16
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Member#: 447898
Join Date: May 2016
Chapter/Region: BAIC
Location: W Sac, CA
Vehicle:
2016 WRX (traded)
2019 STI CWP

Default

Quote:
Originally Posted by Hyper View Post
best TS bolt on turbo on the market, period
I have tried PE, HKS, Tomei, all crap
This baby really delivers, especially after I ported it

I only with build quality was higher
Thanks for the feedback!
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