HKS SSQV 2 question

j1330i · 01-26-2008, 04:29 AM

hey guys, i just installed the hks ssqv 2 and i was wondering if anyone with this bov has had the same results as me. it seems that my bov at full boost goes off twice, theres first a quick high pitch burst then a second after theres a longer swoooosh. i used to have the ssqv 1 on my old sti and i never experienced 2 chirps of the bov only 1 at anytime. can anyone explain why it does this?

stillclaimndp · 01-26-2008, 04:30 AM

Quote:

Originally Posted by j1330i

hey guys, i just installed the hks ssqv 2 and i was wondering if anyone with this bov has had the same results as me. it seems that my bov at full boost goes off twice, theres first a quick high pitch burst then a second after theres a longer swoooosh. i used to have the ssqv 1 on my old sti and i never experienced 2 chirps of the bov only 1 at anytime. can anyone explain why it does this?

2 turbos = 2 chirps...?

Alpine335TT · 01-26-2008, 04:46 AM

yep, same thing has been happening to me since my hks ssqv was installed... sounds kind of funny lol

Kyosho · 01-26-2008, 12:40 PM

i use to have a Tial BOV on my G35 and it did the same thing. Under low boost it was one woosh sound and under high boost it chirped and then a woosh. its perfectly normal i think its just how the BOV is.

j1330i · 01-26-2008, 03:03 PM

thanks guys, i feel much better now lol.....it sounds weird, i much preffer the one swooosh sound

Spool · 01-26-2008, 03:10 PM

Normal

Dr Dre · 01-28-2008, 07:57 AM

The HKS Super Sequential Blow-Off Valve (SQV) is a dual stage pull type relief valve. The SQV is engineered to initially open the small primary valve at light throttle and load conditions, then sequentially opens the secondary valve for additional relief capacity under high boost and load conditions.
It incorporates both a small primary valve for ultra quick activation, along with a larger secondary valve for additional discharge capacity. Thats why you hear both at higher boost but only one at low.

01-26-2008, 04:29 AM	#1
j1330i j1330i 19 Rep 213 Posts Drives: 330i, 335i Join Date: Apr 2007 Location: toronto iTrader: (3)	HKS SSQV 2 question hey guys, i just installed the hks ssqv 2 and i was wondering if anyone with this bov has had the same results as me. it seems that my bov at full boost goes off twice, theres first a quick high pitch burst then a second after theres a longer swoooosh. i used to have the ssqv 1 on my old sti and i never experienced 2 chirps of the bov only 1 at anytime. can anyone explain why it does this?
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01-26-2008, 04:46 AM	#3
Alpine335TT Major 154 Rep 1,403 Posts Drives: LCI E92 M-Sport 335i Join Date: Sep 2007 Location: DC Metro iTrader: (5)	yep, same thing has been happening to me since my hks ssqv was installed... sounds kind of funny lol __________________ Current: E46 M3 (CB) Retired: E92 335i (AW) // E92 LCI M-Sport 335i (LMB) MISCHIEF.TV
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01-26-2008, 12:40 PM	#4
Kyosho Lieutenant 18 Rep 568 Posts Drives: 991.2 GT3 // Panamera Turbo Join Date: Jun 2007 Location: Irvine CA iTrader: (4)	i use to have a Tial BOV on my G35 and it did the same thing. Under low boost it was one woosh sound and under high boost it chirped and then a woosh. its perfectly normal i think its just how the BOV is. __________________ Understeer is when you hit the wall with the front of the car and oversteer is when you hit the wall with the rear of the car. Horsepower is how fast you hit the wall, torque is how far you take the wall with you."
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01-26-2008, 03:03 PM	#5
j1330i j1330i 19 Rep 213 Posts Drives: 330i, 335i Join Date: Apr 2007 Location: toronto iTrader: (3)	thanks guys, i feel much better now lol.....it sounds weird, i much preffer the one swooosh sound
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01-26-2008, 03:10 PM	#6
Spool ****** 603 Rep 6,169 Posts Drives: A few Join Date: Apr 2007 Location: DC Metro iTrader: (24)	Normal __________________ MKIV 6spd 1000hp Club
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01-28-2008, 07:57 AM	#7
Dr Dre New Member 0 Rep 12 Posts Drives: 2006 323i e90 Join Date: Aug 2006 Location: Perth, Australia iTrader: (0)	The HKS Super Sequential Blow-Off Valve (SQV) is a dual stage pull type relief valve. The SQV is engineered to initially open the small primary valve at light throttle and load conditions, then sequentially opens the secondary valve for additional relief capacity under high boost and load conditions. It incorporates both a small primary valve for ultra quick activation, along with a larger secondary valve for additional discharge capacity. Thats why you hear both at higher boost but only one at low.
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