But still it wont open. Because then of course, it will need a even more to overcome the exhaust pressure pushing up against the tulip valve in the wastegate.
Yes. You are correct. I forgot the valve lifts not drops. That reverses what I said earlier.My understanding is the exhaust back pressure against the gate valve works to push the gate open.
I would agree with Bob. If one has a 8lb spring and and wants 32lbs of boost, simply add the difference to the opposing side of the gate. But like mentioned there are a few other things to factor in. Ultimately a few more pounds of pressure will prolly be required to hit the target.
See what your back psi is first
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About 45 psi but I also use a heavy spring and get 15 psi boost without adding pressure.I think you are right TurboNasty.
Regarding back pressure, Turbobitt, can you provide a back pressure psi with that 30psi on the gate to make 30psi in the intake manifold?