hey I know its been done before, but I need to see how some of you guys ran them and also what you guys used. I have a spare greedy BOV and I want to install it. thank you all

You would want a way to properly recirculate it. someone else could explain it better. it is generally not recommended.

No one with any kind of brain runs a BOV on a Subaru. You run a recirc valve to keep the turbine spinning when the throttle shuts. BOV's just make noise and hurt performance.

 

GD

No one with any kind of brain runs a BOV on a Subaru. You run a recirc valve to keep the turbine spinning when the throttle shuts. BOV's just make noise and hurt performance.

 

GD

 

100% agree. They are also especially obnoxious. You have bigger fish to worry about on that motor than making duck noises.

A BOV dumps air that already was measured by the mass air flow sensor out into the atmosphere instead of into the engine. The computer will inject fuel for air that isn't there, making it run unbelievably rich every time the BOV opens.

 

BOV's are for speed density fuel injected cars, not MAF based ones like subarus are. Run a recirc valve, which is a BOV that dumps back into the inlet to the turbo. They're easy to find on Saab's and Volvo's in the junkyard. It's a black valve with two 1" hoses hooked to it and a vacuum hose hooked to the top.