Originally Posted by yamahaSHO
Since you know the above, 100% WGDC should be FULL MBC control (closes off EBCS forcing pressure through MBC ONLY). With the EBCS going to the inlet, you cannot have FULL MBC control as your boost pressure will find its way into the inlet vs pushing the ball and spring.
That's a good point. I wonder why I haven't experienced overboosting issues with running it back to the inlet.
But yes, you're right, capping it off and effectively making it a restrictor style 2-port should be the best way.
But here's a question. Does this slight 'overboost' which introduces more pressure pre-compressor, maintain the same pressure ratio across the compressor? So this overboost, simply allows for more air to flow through without making the efficiency any worse?