[534BC]

I think I can see it working good, You must have a very large waste-gate to be able to run half the engine thru it. Let me rephrase it to make sure I get it. I've done a number of custom turbo jobs over 10 years ago and always had to just "live" with the sacrifice of exhaust housing sizing. Most of my set-ups were truck/tractors so was no real problem. On my street vehicles I had simply sized too small and then lived with an exhaust gate dumping pressure to control over-boost.

You have in a sense installed an exhaust housing that it sized way too small forcing the whole engine thru it yet kept a normal size compressor (very good) . when boost approaches the setting of 10 pounds it starts in effect increasing the size of the housing until a level of 12 or 15 or whatever the max open pressure is until the exhaust housing is in effect too large now (good for max power)

I have to thionk some more about this, only thing I see is if the gate is big enough it is not exactly a nice smooth trip to the turbine, but who cares ?

I like it so far and curius when you get it all worked. Its a good concept, It is simple I can't think why no-one had this.