actually... 17 psi w/ no bov and mad compressor surge is enough to make my pee pee pack up his balls and leave.

and if the BOV is right near the TB, the pressure wave or shock wave wouldnt go any further than the BOV... the air coming from the turbo, thru the pipes and the IC could keep moving just as if the TB was open yet be diverted out the BOV... so the pressure/shock wave would not travel all the way back thru the pipes and IC.