Bad turbo sounds like......?
 

I was racing a GSXR 1100 the other night and after a very hard run, my car started to sound funny. It spools to normal boost, but I can't feel the 2nd turbo transistion. I can't really describe the sound, but it's not a nice whispering sound, but more of a harsh electric motor like sound. Idle sounds weird too, like there's a tapping noise...