Looking for some input here.
I want to have an electronically controlled wastegate off my exhaust manifold, mostly so I can essentially turn the boost "off" while driving on the highway. Sitting at 10psi and spiking to 20 every time I accelerate for a second gets old quick, particularly when it sounds like a jet. That, plus it's easy to adjust max boost as my boost gauge has an adjustable relay output.
Problem is, I can't seem to find one anywhere. Adding the fact that it would need to be 100% duty cycle makes it even more interesting; I can't just have a solenoid pulling the wastegate spring out.
One idea I have is getting a really low (<5psi) sprung wastegate and simply having a solenoid in my line coming from the manifold. That way, I can have a toggle switch in the car I can turn on when I only want 5psi boost, or I can flick that off and boost normally until my boost gauge opens the solenoid up and opens the wastegate.
Any other suggestions?