Does anyone really know what is really happening with the ECM boost control system? I'm looking to prevent any opening pressure on the waste gate actuator until at least 50% of the maximum boost (26psi) is reached. This would hold the puck closed with full force for faster spooling. To try and do that I inserted a spring loaded relief valve between the compressor and the "Y" fitting. I haven't had a chance to test this since my rear brakes are destroyed. What do you think about this configuration? Should I have put the relief valve after the "Y" or not use it at all. It only opens when there is sufficient differential pressure but has a bleed hole in the outlet fitting.