darkstar:
I really appreciate you info.
From Hehehe's first post, i got the impression that this was done by a friend "backyard style". It is obvious, that you know more than i, about this matter and appoligise if i offended you.
Having said this thou, i still beleive it is a bad idea to block the bov in a R33 due to the increased load on the "ceramic" exhaust wheel.
I have known that race cars do not use bov, and the reasons/advantages behind it. But, race cars have the financial advantages of getting things replaced when needed. I beleive that for street use, on a non-to-lightly modified car, the gains are not benifical, especially when weighing it up against the increased risk of spinning off the "ceramic" turbine wheel from it's shaft.
If Nissan found it benifical and cheaper to have no bov, the tunning of the ecu may have overcome the epa issue.
In Ending: We all learn from different sources, experiences and interpritations. At the end one must make his/her own decisions and live with the outcomes .