sr20det Blow off valve problem?

[nick drifts]

hello fellow s chassis drivers im kinda new to all this stuff and still learning and i was told by a friend that the fluttering noise coming from my BOV was not supposed to do that and air is getting pushed back into the turbo. is this true and how do i fix that?

[nick drifts]

so people i figured out why it was fluttering. the BOV spring is to tight and it just happens to be a Tial Q BOV which means i have to get a new spring since its non adjustable

[Fuego]

Might be late, but Greddys are adjustable..