I have been researching that bov's arent supposed to flutter. Does this mean at low boost as well? My BOV flutter at around 3-5psi when i am crusing around town and not really getting on it much. Should I losen it to prevent this or is it supposed to flutter at low boost. I doesnt flutter when I am at around 7+psi.. then i get the normal blow off sound.

 

Loosen the adjustment bolt, it is too tight.

 

Mine flutters at low boost but i think i'm going to try loosening it some. My friend has a WRX and his never flutters, even at really low boost.
We both have Blitz DD BOVs.

-Xerxes

 

IT's not suppose to flutter. I HAD the HKS BOV and no matter how I set it, it would flutter. I got rid of it and got a Greddy Type S

 

HKS SS Bov flutters under vacuum. Under any positive pressure it does not.

Dustin

 

yup.....same here.

 

So what about the blitz super sound? should it flutter a vaccum and then as soon as it hits 1psi i should have NO flutter at all? and i keep losening it until i dont right?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DamonBoost &raquo;</TD></TR><TR><TD CLASS="quote">So what about the blitz super sound? should it flutter a vaccum and then as soon as it hits 1psi i should have NO flutter at all? and i keep losening it until i dont right?</TD></TR></TABLE>

Sorry to bring up a dead thread, I didn't want to start a new topic on the same subject. I have the same question as DamonBoost, basically my Blitz DD sounds great when I hit boost but if it blows off under vacuum then I get this annoying fluttery bird like noise. Is there any way to prevent this? I've tapped my brake booster and all is well under boost, I just loathe this vacuum flutter crap

 

Holy back from the dead batman.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dustin &raquo;</TD></TR><TR><TD CLASS="quote">Holy back from the dead batman.</TD></TR></TABLE>

hehe... I am king of resurrecting dead *** threads

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mskibbz-T &raquo;</TD></TR><TR><TD CLASS="quote">

Sorry to bring up a dead thread, I didn't want to start a new topic on the same subject. I have the same question as DamonBoost, basically my Blitz DD sounds great when I hit boost but if it blows off under vacuum then I get this annoying fluttery bird like noise. Is there any way to prevent this? I've tapped my brake booster and all is well under boost, I just loathe this vacuum flutter crap
</TD></TR></TABLE>

mine fluttered until i noticed i had a vaccuum leak. now its just Pshhhhtttt! any boost level.

 

My blitz sort of flutters, kind of sounds like

"Woo Woo WOOOSH!"

Unless I'm REALLY on the throttle, then it just go a full "WHOOSH!" with no flutter, I was told it was normal. .... isn't.. it?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Snafu-Si &raquo;</TD></TR><TR><TD CLASS="quote">My blitz sort of flutters, kind of sounds like

"Woo Woo WOOOSH!"

Unless I'm REALLY on the throttle, then it just go a full "WHOOSH!" with no flutter, I was told it was normal. .... isn't.. it? </TD></TR></TABLE>

Yeah... same here. Mine is fluttery under 1 PSI, clean Pssssssshh above that. No vacuum leaks, I tapped the brake booster, installed a vacuum log, ran 1/4" line to my BOV... everything is secured via zip ties or metal clamps, teflon taped, and loktite'd(where necessary)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mskibbz-T &raquo;</TD></TR><TR><TD CLASS="quote">

Yeah... same here. Mine is fluttery under 1 PSI, clean Pssssssshh above that. No vacuum leaks, I tapped the brake booster, installed a vacuum log, ran 1/4" line to my BOV... everything is secured via zip ties or metal clamps, teflon taped, and loktite'd(where necessary)</TD></TR></TABLE>


Where did you find a tap the size of the brake booster hose...? Is this ok to do so you don't have to run all your vacuum lines off of the FPR vacuum line...? TIA...

 

I used a 3/8" brass tee, then ran a 3/8" vacuum line to my GE vacuum log, from there I have all my 1/4" lines running to their destinations... worked perfect

 

The damn HKS SS BOV on the Gaylude Flutters like compressor surge like a gay little girl at 5 psi, even w/ the screw all the way out....

I hate it

 

turn up the boost, you got a valve rated for maxx pressure there... hehe

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dustin &raquo;</TD></TR><TR><TD CLASS="quote">HKS SS Bov flutters under vacuum. Under any positive pressure it does not.

Dustin</TD></TR></TABLE>