When i hit full boost, the bov makes a nice chirp sound... which is good.

If i get little amount (1-6psi), i hear a compressor surge sound. people say this sound is the bov and thats the sound it makes with lower boost.

BUT my compressor is facing the driver side and the bov is facing the pass side and i hear the surge on the driver side, so its the air coming back out the turbo.

any thing i can do to this thing?

 

note: i have my main vacuum port on the intake mani going straight to the bov

 

its got a adjustment screw on it try mess with that till its right sound like it need to be a bit more lose

 

no it dosen't hks is not adjustable and mine makes the same noise it sounds like it sputters nad then fires off...

 

The old HKS is adjustable but I wouldnt play with that. The stuttering sound at low boost is normal... I have that too and alot of other people running SSQV also have the same sound. I wouldnt worry about it.

 

1-5psi, my ssqv would make a surge sound too. but sometimes it's the bov under low boost. it's a dual stage bov. not too sure about the ssq.
small surge isn't a problem.

 

i dont like it!

 

That's how it's supposed to sound like. Most "high psi" BOV's don't open up at low boost levels, and the low-mid range BOVs can't hold over 15psi. The HKS works both ways because of the sequential valving system. If you don't like it, you can always get a different BOV.

 

If the valve is working properly under high boost conditions but not at low boost conditions then the spring is too stiff for the vaccum your motor uses. Take a vaccum gauge at idle with the car completely warmed up. Once you get that value you can then choose the correct HKS spring for your application.

 

my blitz ssq does the same thing, it has 2 different sounds from low boost and high boost.

im pretty sure the ssq are supposed to sound like this

 

One of my Customers actually was wondering the same thing. I backed off the adjustment bold a hair and everything works fine.It does sound diffrent tho at low boost. Just the way its designed

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SmoothlilHatch &raquo;</TD></TR><TR><TD CLASS="quote">One of my Customers actually was wondering the same thing. I backed off the adjustment bold a hair and everything works fine.It does sound diffrent tho at low boost. Just the way its designed</TD></TR></TABLE>

i dont think i have any adjustment. there is a little hole on top, i dont know if thats for an adjustment screw?

 

the newer HKS blow off valves dont have the adjustment bolt anymore. they probably got tired of people messing with it because of this reason.

i would say its normal. my HKS does the exact same thing......

 

my greddy type S had a small surge right before it went off at low boost...

i doubt its the same idea but

inside the greddy there are 2 springs.. a stiff one and a small one inside the stiff one...

i opened it up and took out the stiff one...

works like a charm now

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDM EJ1 95 &raquo;</TD></TR><TR><TD CLASS="quote">my greddy type S had a small surge right before it went off at low boost...

i doubt its the same idea but

inside the greddy there are 2 springs.. a stiff one and a small one inside the stiff one...

i opened it up and took out the stiff one...

works like a charm now</TD></TR></TABLE>


neither of my Type s's had 2 springs?

 

mine did!

lol theres a outter stiff one and an inner weaker one...

i think mine is the high boost type S

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDM EJ1 95 &raquo;</TD></TR><TR><TD CLASS="quote">mine did!

lol theres a outter stiff one and an inner weaker one...

i think mine is the high boost type S</TD></TR></TABLE>
high boost type S? i thought there were only the type S and the type R?

i'll check another one....since 2 of them were used, i have 3 or 4 around here somewhere