I don't understand what your point is. I am not saying that you are wrong by any means. What I am saying is that the BPV solenoid is not necessary, and FOR US it impeaded the boost levels that we were aiming for.
1. The Blue line is a higher pressure at ALL TIMES.
2. The Black line ( to surge solenoid) is from the Manifold.
3. Throttle open, solenoid changes source to blue line.
4. Throttle closed, solenoid changes source to manifold.
You are correct.
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