Is it set up tuner style? Where the vacuum line runs straight to the wastegate diaphragm? I tried that once and I couldnt believe how slow spoolup was compared to the bleeder setup. That diaphragm isnt designed to take such a huge spring load. Its really easy to tear and start leaking. The fact you have to turn it so far may indicate that yours is torn. With the bleeder setup, I can easily run 20 psi with the arm set just tight enough that the arm slips right over the puck arm with zero effort. If I adjust it so I only have to pull the arm maybe a millimeter to get over the puck arm and then adjust the bleeder, I can get any boost I want with really fast spoolup. It seems with this custom bleeder, turning the wastegate arm doesnt really alter boost much. Maybe 5% of what the bleeder can do. I use a big bleeder valve from Fabco-Air, which is designed for use with large pneumatic cylinders. I can adjust boost so precisely its crazy. Ive used the factory boost solenoid by itself, the solenoid with a pressure regulator, a pressure regulator by itself...lots of combos. Im really happy with this setup I have now. Its all plumbed up like stock, only I use the Fabco bleeder instead of the factory solenoid. It spools really quick. Way faster than tuner style and faster than the stock solenoid. There is a thread I posted showing the pic of my bypass system, as well as a few others. It shows this bleeder. I think the thread is called boost bypass pic or something like that. Do a search if you want to see it.
