Was flat out in 5th (24-27psi) at around 6k rpm for a few minutes on and off, heard a funny sort of noise from the engine bay and a puff of black smoke from the exhuast followed by no boost! lol
I could hear the turbine wheel spinning (against the housing) every time I opened the throttle but no boost pressure at all so I'm gussing the shaft has snapped?
Compressor wheel has loads of movement in all directions now too!

Was a Stage 2 T3 (.36/50) and has done about 15K since new over the last 2 years, I ran without a dump valve.

I'm guessing I have just been pushing it too hard (well, running it flat out if I'm honest! lol) and heat has killed it?

UPDATE - Seems the turbine wheel has fallen apart! lol