Ya.. The qsv is nothing new.. A company called Sound performance biulds and sells them for over 400us. With huge copywrite enforcement...And I believe mine is better designed. MAZDA used in in the rx7 but it didnt work for them.
I think the hx35 8blade is the best to test it out with. We know the 8blade 56mm compressor wheel is good for 52lbs/m in either the bolt on housing.... Or the stock 12cm housing. The goal is to bring the 12cm housing down to a 6cm housing to spool fast. Which is showing some promise, But I have a few ideas to improve the valve. If I can get this thing to hit full spool begore 4000rpms.. Then Ill upgrade the compressor side to a hx40 wheel.

11.45@125,
stock bottom end 6bolt 2g head.
272 hks cams.
Holset hx35
Backyard biult!!