Originally Posted by
Karlos G
The turbo does not stall!! If that happened you'd have no exhaust gasses flowing out and the engine would stall!

....
Also you have to remember that when you dump your loosing all the charge air/pressure from your intake which the turbo then has to repressurise again... adding lag
So whats better??... Retain charge air/pressure or reduce spool up time? Both will slow down the time it takes to reach the desired boost pressure again after a gear change...
Hence the ongoing debate...
it does slow the compressor down mate and with big boost it can stall the turbo.
the chatter you hear is the air charge getting chopped up by the comp wheel .