Hey, so lately my BOV has sounded abit different and im not sure why. It use to be that when i would shift or whatnot it would be one fast quick chirp. Now its a longer more drawn out reverberation. Its difficult to tell in this clip but its the best i have.... any ideas?
http://videos.streetfire.net/v...e.htm

 

Thats what compressor surge sounds like. I have no idea why its doing that tho.

 

thats what i feared, any ideas?

 

loose or torn vac hose to the bov? or the bov could be faulty, ie torn diaphram. Try a different vac source and a new hose first.

 

imm having the same prob. bump

 

 

another vid
http://videos.streetfire.net/v...f.htm

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EJ8 GSR-T &raquo;</TD></TR><TR><TD CLASS="quote">another vid
http://videos.streetfire.net/v...f.htm </TD></TR></TABLE>
Sounds like compressor surge. But, it does sound kind of cool in a weird way. Sorta futuristic, like a alien ship or something

 

i thought that's how the hks ssqv was suppost to sound like? Isn't compressor surge more drawn out ?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GSROWNSU &raquo;</TD></TR><TR><TD CLASS="quote">i thought that's how the hks ssqv was suppost to sound like? Isn't compressor surge more drawn out ?</TD></TR></TABLE>
thats kinda what im trying to figure out, when i bought it it sounded much different but that was on a much different turbo setup...and after hearing the same BOVon other cars im kinda worried

 

Doesn't sound like compressor surge to me...

 

now im totally lost, i think it was compressor surge because i listed to the turbo it sounds like it is under a forced spinning. I also noticed that after i shift vac. is very shakey for a second. So i took out the BOV and dismantled it. i oiled it and put it back together and now it is tighter but after it blows off or what you perfer to call it, it makes a noise that sound like a whirlwind. I cant quite capture it on video but it does it every time. I have no idea where im at now.

 

Every car i have heard that has the SSQV when it open up it is on loud quick hi-pitch whine.....never other than mine have i heard a tshchchchch

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EJ8 GSR-T &raquo;</TD></TR><TR><TD CLASS="quote">Every car i have heard that has the SSQV when it open up it is on loud quick hi-pitch whine.....never other than mine have i heard a tshchchchch</TD></TR></TABLE>


I ahve the ssqv its a loud quick pshsssshhshshhshs

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EJ8 GSR-T &raquo;</TD></TR><TR><TD CLASS="quote">another vid
http://videos.streetfire.net/v...f.htm </TD></TR></TABLE>

Sound like a hks to me. Stand outside the car and free rev the motor to see if the bov is opening. If it is then it's not compressor surge.

 

you may need to just loosen it up, its hard to tell because the SSQ sort of sounds like compressor surge to begin with. loosen it up and see if it changes.

the poster above had a good idea as well, rev your engine by hand while your looking at your bov, see if you can see it blowing off or not

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EJ8 944 &raquo;</TD></TR><TR><TD CLASS="quote">you may need to just loosen it up, its hard to tell because the SSQ sort of sounds like compressor surge to begin with. loosen it up and see if it changes.

the poster above had a good idea as well, rev your engine by hand while your looking at your bov, see if you can see it blowing off or not </TD></TR></TABLE>
it does open up abit becuase you can feel the air it lets out, but say you rev it up even if you rev it high it doesnt "blow off" atlest not enough to make any blow off noise

 

I'm sure if you rev it high enough you can built a little boost to make the bov sound. Done it to my brother's gsr turbo.

But sound like the screw is on too tight if it's only open a little bit.

 

hey man im having the same prob. with my hks bov normally it has a flutter sound under low boost and a hi-pitch sound at full boost and after i put a top mount and a victor x intake mani. it sounds like a sneeze comming from the turbo area, but the bov is still opening, i was told that compressure surge will only happen if your bov does not open at all and it makes a vibration on the turbo because it makes the the turbine wheel spinn the other way so im thinking that if your bov is opening at least the pressure is getting out im still researching though. ill keep my eye on this thread

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by turb20_vtec &raquo;</TD></TR><TR><TD CLASS="quote">I'm sure if you rev it high enough you can built a little boost to make the bov sound. Done it to my brother's gsr turbo.

But sound like the screw is on too tight if it's only open a little bit. </TD></TR></TABLE>
nope just wont happen

 

^ What turbo are you running? We did it with the precision sc34 with the .63 turbine on my brother's gsr.

But as long as you know the bov is opening than I shouldn't worry about it.

 

Its a garrett t3/t4 60 trim....its opening so i guess thats all im gonna worry about