Hey i just changed my Hyperboost DV for a Greddy BOV, has a fluttering sound as if it is blowing the air back through the turbo. Is this normal? it sounds good to me but just want to know if it will cause any damage. iI still do hear it blowing off normally it just as the flutter with it also

 

that flutter is air moving back and forth in the piping like a bungee cord. When its traveling backward to the turbo, it slows the compressor. not good for performance, potentially stressful on the compressor. Adjust, and/or move the BOV closer to the throttle body to stop the bungee effect from happening.

 

i have that same fluttering noise with my forge splitter, i hold boost just fine though..

 

mine only flutters if i ease off the gas... If i am wot and i shift it just goes psh. I have the 007 though so its a quiet little guy

 

OK thanks guys, now i feel like putting my DV back on, Anyone interested in a Type rs BOV? comes with adaptor for stock DV location. hit me up

 

I think the dv reloc kit is the best way to prevent stressing the compressor wheel. That way instead of dumping air behind the compressor you dump it into the tip.

 

Its not adjusted correctly, nothing more, nothing less.