Flowroro Posted November 8, 2018 Share Posted November 8, 2018 Hi guys, anyone know whats the max somewhat safe without blowing up my engine turbo psi for the primary turbo? just installed a manual boost controller and put it up to 15psi from 12 stock. Is this somewhat safe? Any advice is appreciated. thanks Link to comment Share on other sites More sharing options...
RumbleRumble Posted November 9, 2018 Share Posted November 9, 2018 stock subaru 15psi is semi-safe. 8 psi if you want reliability Link to comment Share on other sites More sharing options...
RustyRuu Posted November 9, 2018 Share Posted November 9, 2018 depending on where you live dyno's have become pretty cheap and even if thats not up your ally, most tuners are willing to take a ride along with a wideband o2 to find out if your actual air to fuel ratio and see if your in a safe range. like you can find out if 15 is ok and maybe 18 is running out of fuel on the stock tune. Link to comment Share on other sites More sharing options...
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