Noob here with some questions. (Wastegate, Blow off)

Gauge

So with a wastegate, the spring, say 6PSI in your example, won't open until 6 PSI is reached. Meaning it won't divert exhaust. Until then all exhaust is going to the turbine. IS this pressure from the manifold to the wastegate? Or from the wastegate to the turbine. Or is this one continuous track (until wastegate opens)?

SO when picking a wastegate you're really only limited to what you can fit? You just put in different springs to achieve the results you want?

You mentioned a boost controller. This takes from PMP, is this to say the intake manifold pressure?

If so then, assuming your turbo is working and putting large amounts of air into the Intake manifold, why would you take from that to keep the manifold shut? Is this just to rev the turbine faster and achieve higher boost? I would imagine that could be dangerous? Also if what I said is true, won't the diversion of intake manifold pressure increase the boost PSI beyond what the wastegates spring is rated at? This situation would seem like a supercharger, using boost to create more boost ><

Do springs have limitations on them? Can you get a large wastegate and put in a low PSI spring and use the controller to get the PSI higher, or to your desired PSI?

Also ty everyone so much for dealing with me. I did read the wiki, sometimes hearing it a different way makes understanding it easier.