In my last episode, I was battling compressor surge (stall) and going to try to put a hole in the intake system to create more flow.   The thought was that would allow me to open up the throttle more, decrease the apparent pressure ratio to the turbo (because of reduced throttle body losses) and allow for more flow.  No good...  I made a hole working up to 1/2 inch in dia which created a noticeable difference in throttle position for a given boost but no improvement in the occurrence of surge.
  
Well, I finally graduated my residency last week and now will be working much less, including 3 weeks of vacation.  The first of which I spent at the hangar.  I decided to just open up the wastegate..  I removed the flapper valve all together, opening up the waste gate significantly.  I was worried that it might be too much and I would not be getting any boost.  But with the flapper removed I still can make 40"MAP on take off, my RPM for a given MAP is improved (probably because of decreased back pressure) and thermal rejection may be improved as well.  All in all it was a good move because my limiting factor is still cooling.
  
More stats later as I am flying to the mountains tomorrow...  The wife is even going to come along.
-- Dave Leonard