Good idea not posting this in the main Forced Induction thread... you'd be slain
All Skylines, as far as I know.. use BOV's that don't seal 100% They leak constantly through a small hole, to smoothen out response when driving. (clearly as they're leaking back to a point in front of the turbo behind the AFM, this doesn't upset running.
You cannot make the stock BOV work atmo, unless you block that hole up.
But hell, don't listen to me, i had to, 4 yrs ago, try it... hahhaa.
I only made it home by left foot braking, and always applying throttle when doing so...
Lack a GF and need some toosh toosh, then grab a proper atmo bov and tune it to NOT STALL with your bender / PFC / full ECU...
Just say'n