I want to eventually (after the motor is broken-in and I have a new trans built) run 2 stages of boost. I want to run 15psi as an every-day mode, and then run 20psi or so + water/meth injection for fun. Now the water/meth I think could be turned on while in the car without changing anything else, but boost I will need to figure out something like a dual-stage boost controller so I don't have to fiddle with a g-valve. I would like to be able to stop at a light, flick 2 switches or push 2 buttons or whatever, and then I'm good to go.
I'm looking for an affordable 2-stage boost controller, either electronic or some type of self contained series of valves.
Please let me know what you guys would use to accomplish this!
P.S. when you use a g-valve inside the car does the air coming out of the tiny hole once you hit max boost make a loud whistle or is it mostly unnoticeable?