Supercharge Your Performance Bypass Valve Normally Open

The bypass stays anything from fully open to almost closed until the throttle is at relativley wide opening. Amongst other things it gives a progressive ... ... normal driving where the engine is in a high vacuum situation ... open to allow boost to pass through it when boost is not needed and ... The only question is now: What value do i set the bypass valve to? The valve has to be opened more at low rps and/or throttle than at high rps ... It's wierd because the vacuum under normal driving holds it open and closes by spring pressure under boost. ... valve open from the intake ... Can the SC bypass valve be controlled with the stock PCM to open at a specific RPM ... boost, usually in reverse, etc. The open bypass valve reduces pumping loss thereby increasing fuel efficiency. The solenoid valve attached to the bypass actuator is an ... And that is normal for the valve to be open when the bypass valve actuator fails. I don't think it is a common issue but it is a mechanical ... I wanted to open a discussion around how to approach the topic of setting up the tune for bypass valves that release the boost pressure back into the inlet ... Shut the engine off. Does the valve move to the closed position? When you start the engine the valve should move to the open position. For some ... When the throttle is closed, the bypass is wide open, and vice-versa. It also appears that the butterfly is biased to blow open with pressure, ...