not all wastegates are the same, your controller needs a "pressure" reading from the system, and the tial wastegates use the top port to the controller (which is usually vented, it would need to be vented for the wastegate to work "as designed" on the spring alone) however, using the controller, you are tricking the wastegate spring to see less pressure, when in reality the IM is seeing higher pressure. I am still asleep so I hope that all made sense, at lease that is how I understand it, im still new to the boost game.
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