Did a little reading in the FAQ, so let me see if I get this straight.The BOV is set to open, stock, at a slightly higher pressure than the turbo's wastegate (~12 PSI). The wastegate will open to regulate boost at the stock settings of 9-10 PSI. So when I'm burying the throttle and the boost gauge is pegged at 9 PSI, that is the waste gate doing its thing.So, in a stock sense, the BOV will not do anything unless the wastegate fails.And, if I want to "up the boost" so to speak, I need to install a manual boost controller in the air line that goes to the wastegate, to fool it into seeing less boost, in order to let the turbo build more pressure. BUT, if I don't alter the spring or disable the BOV, I will never be able to get more than 12 PSI since the BOV will then be activating.
Gasoline cars need BOVs because they have throttle plates which we diesels don't.
So despite the extra effort, still seems like the extra safety of the BOV would be worth it, just with additional spring changes should I desire more boost?
...BTW your Bieber avatar is awesome.-Malone
QuoteSo despite the extra effort, still seems like the extra safety of the BOV would be worth it, just with additional spring changes should I desire more boost?I agree with this statement too. Retaining your BOV and just setting it to a higher pressure sounds like a good idea.[/quoteThere is ONE thing about the BOV that isn't mentioned here though... When the BOV opens there is no longer any restriction on the turbo. Since the wastegate would be closed/blocked/whatever the turbo is going to try and spin itself to infinity. Not a good thing. Having 14 PSI boost doesn't kill these turbos or motors, but overspeeding the turbo substantially would be a good way for your engine to inhale compressor blades.