Hey there guys. Here I present a hypothetical question to all who have knowlegde on the subject. If our V6 were turbo'd how many people think I BOV would cause problems cause of our MAF? For those of you who have no clue what Im talking about here you go. A BOV as you probably know releases air when you let off the gas pedal so that the turbo can spin freely. The problem is that with a MAF based system it already registered the air that pass through it and made the fuel changes so the outcome will be that you will run rich while you shift and in some instances even studder. Im not saying that this will happen, but it is a possibility. Now a bypass valve will redirect the air back into the intake thus you wont be losing any air and everything is ok. The only downside to this is no distinctive loud "pssst" sound. I am also asking this cause of that video of Pross's turbo tib. They seemed to have a BOV and not a bypass valve. Also the evofusion kit if you look at it uses a bypass valve. I was just curious so I thought I would add a discussion.

Install the BOV before the MAF?? I would imagine most setups are like that. Besides, I don't think that it would be enough of an issue to throw a CEL, as it would not be a sustained condition - It would only affect, at most, 1 or 2 cylinders intake stroke.

Yes on MAF you need a recirculating BOV. Or you could tool around with the decel air flow on the SAFC.

Hey thanks for the replays. My concern isnt a CEL it's the actual studdering or lagging in between gear shifts where it would run real rich. I to think I would need a recirculating BOV but I noticed that the Pross turbo cars didnt have one thats why I was asking. I see what you are saying about the safc but how would you tune it for gear shifts?