Flutter indicates a problem. Flutter is pressure pushed back into the supercharger because it has no place else to go. If you are getting flutter then you BOV is not working properly. It is not opening when it is suppose to .
ProCharger P-1SC, 9 psi, STD 396/383; Uncorrected 388/375; SAE 383/370.
Ret. USAF 1969-1973,1980-1996: Vietnam veteran. Aircraft maintenance. R & D, ICBM Operations.
Also own: 1997 Harley FXDWG, 1998 F-150, and 2002 Corvette LS1