stock blowoff valve leaks? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

guitaraholic · 10-25-2009, 08:50 PM

It's inside the BOV itself. It is a small hole about 3-4 mm in diameter. Why its there I don't know. But connects the High and Low pressure side. You can physically blow from one side to the next by mouth. I blocked it off, and now my turbo is spooling at like 2.5k hell, it almost spools when I don't want it to. Its not that hard to take apart the BOV, its 3 screws, then just tap it with a 10mmx24 tap, and put in a set screw (put some paint on the screw so it doesn't come out) and you're done. No more leaks. Flip the hoses (will need to adapt the sizes) and now its a pull instead of a push style (will be doing that in the near future)

10-25-2009, 08:50 PM	#12
guitaraholic Zilvia Junkie Join Date: Jun 2006 Location: Spanish Fort, AL Posts: 430 Trader Rating: (0) Feedback Score: 0 reviews	It's inside the BOV itself. It is a small hole about 3-4 mm in diameter. Why its there I don't know. But connects the High and Low pressure side. You can physically blow from one side to the next by mouth. I blocked it off, and now my turbo is spooling at like 2.5k hell, it almost spools when I don't want it to. Its not that hard to take apart the BOV, its 3 screws, then just tap it with a 10mmx24 tap, and put in a set screw (put some paint on the screw so it doesn't come out) and you're done. No more leaks. Flip the hoses (will need to adapt the sizes) and now its a pull instead of a push style (will be doing that in the near future)