My greddy rs whistles so much and when it blows off it flutters a lot...Anyone know of this or what i'm doing wrong??

 

I don't think you did anything wrong thats pretty much how mine sounds

 

vRRrRrMMMM PSHHHH

 

My HKS SS bov flutters also but at low boost

 

Try either loosening the adjusting screw or loosening the screw on top of the RS. The springs in it are stiff already so usually, loosening the screw should improve the response and sound you get from the Greddy RS

 

well , when i had my RS blow off it fluttered until i loosened the spring ... you know the screw on the top of the blow off ? well , after i loosened it ... it stopped fluttering but really doesn't sound like a blow off ! kinda quiet so i sold it !

 

it will flutter a little at low boost levels, but if it is fluttering at wot and full boost u need to loosen the spring with the adjustment screw on top

 

Do Not Adjust It!!!!!!!!!!!!!!!!!!!!!!!!!! I Have Read Many Threads On Bov's, Only When You Turn Up The Boost, Besides That Is The Sound Of Those Greedy Bov's Anyways A Slight Whistle To Them.

 

Is it VTA? I just installed mine and it flutters at low rpm and whoosh when i get on it.