My current mod list are as follows (2008 STi Hatch): installed in order with a few weeks in between each upgrade.
1)COBB AP (running COBB OTS stage 1 map)
2)Harmonmotive TBE 3" Cat-less downpipe (Cobb OTS Stage 2 map)
3)GRIMMSPEED AOS
4)COBB SF Intake (Cobb OTS stage 2 map with intake map)
5)Perrin Turbo Inlet (on stock turbo)
6)DW65c Fuel pump
Im having more oil in my intercooler than normal. I asked my fellow local subaru buddies and they say that my turbo is dieing. Just before I got here to Afghan black smoke would come out of my exhaust when I would do WOT runs. It has only happened twice. Also my boost would have a hard time on 5th and 6th gear. It would struggle then just spike up to 21-22 psi. When I drive normally it drives fine and the boost hold up fine. Ive done a lot of research and im thinking it might be my PCV valve, turbo dieing, some kind of leak or even be OTS stage 2 map from Cobb. I think the leak can be taken out of the equation, but ill double check when I get home here in a couple of weeks. But where should I start looking or should I just get a new turbo and take it from there? If so what Turbo do you all recommend? I dont plan on going more than 400hp. Just want to be as close to it as possible safely. I was thinking maybe a Blouch. Any help will greatly be appreciated, and if you have any questions that might help you know a little more, let me know. I would gladly answer them asap.
Thank you all for your time.
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