Ok William, listen to him. Ignore everyone else
You've ignored the information I've given you - even your own counter-argument about this 0.7bar pressure proves my point - that's 0.7bar that's trying to escape out the compressor housing, via the compressor wheel. That's the reason you get flutter (noise) - you're stalling the compressor wheel.
You honestly want to argue the compressor wheel doesn't stall? Really? Even with all the links I've given you? Turbo Dynamics, Garrett etc? ALL saying it does??
Can you find a single argument by a reputable source, published on the internet backing up your perspective?
You've BEEN proven otherwise. By all the links I've posted. With respect, I think you're being a little blinkered on the subject by refusing to see another perspective. Even that of the turbo manufacturers. You're posting what you've heard from one person. the rest of the INDUSTRY has spoken, as I've highlighted to you.
As the saying goes, you can take a horse to water, but you can't make it drink
