HKS BoV queation? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Mobbin240 · 03-12-2015, 05:09 PM

So my question is,
Is the HKS ssqv4 really universal? I'm doing an SR swap and I'm looking for an aftermarket bov/recirculating valve. Im plan to start with factory 7psi and turn it up a bit. I need flexability. Ive come to understand that because this valve has a diferent pressure management system it can run low to high boost levels. Is this true? How low? And how high? What springs/adjusting is involved? Just so i know....

My SR coupe and I thank you!

*TheRealSy90* · 03-12-2015, 05:12 PM

Every bov is universal if installed correctly.

The best way to apply the HKS SSQV on an sr20 is by utilizing the optional recirculation fitting and routing the air back into the intake pipe after the MAFS.

It should be able to handle any boost level you could throw at it with your setup.

Mobbin240 · 03-12-2015, 05:34 PM

Ok i should have stated more specificly. I understand all bov's are "universal" but my expression of universal was towards the psi rating of the valve. And yes, im running recirc for emissions and overall driveability. The BOV doesnt seem to have an adjusting screw so it is either a set psi range or has interchangeable springs OR it doesnt adjust, and it works for a wide range of boost levels

angel mkiv · 03-12-2015, 06:48 PM

It doesn't have a adjustment and works with whatever boost you run

feito · 03-12-2015, 07:18 PM

lets see, have you tried googling "ssqv 4 adjustable"?

Croustibat · 03-13-2015, 11:56 AM

The chances to buy a genuine SSQV are approx. nil .

If you are going to recirc a valve, i would not use an SSQV unless staying at low boost (like less than 15psi). The exhaust port is really small. I am running a recirced Greddy type RS (because it was a second hand, genuine one, for cheap, and came with a hotpipe).

It uses 2 springs though, so will leak under vacuum like all dump valves with this design. But as it is recirced, this is not a problem.

Mobbin240 · 03-13-2015, 01:03 PM

Quote:

Originally Posted by feito

lets see, have you tried googling "ssqv 4 adjustable"?

Dude, dont bash on my post with sarcasm. Keep it to yourself. This is a place for even the least experienced enthusiast to come and learn.

Mobbin240 · 03-14-2015, 10:45 AM

Quote:

Originally Posted by Croustibat

The chances to buy a genuine SSQV are approx. nil .

If you are going to recirc a valve, i would not use an SSQV unless staying at low boost (like less than 15psi). The exhaust port is really small. I am running a recirced Greddy type RS (because it was a second hand, genuine one, for cheap, and came with a hotpipe).

It uses 2 springs though, so will leak under vacuum like all dump valves with this design. But as it is recirced, this is not a problem.

I plan on keeping this car under 15 psi untill i have supporting upgrades. Probably for a couple years. The HKS SQV4 is available on their website from HKSUSA.com for just under $300. the office is based in L.A..... why are my odds of finding a genuine valve so low? That IS genuine...

Mobbin240 · 03-14-2015, 07:47 PM

Another question, my buddy is running a DSM eagle talon BOV recirculated on his SR swapped 240sx. It has no adjuatment how does this valve work without adjustment? Same type of valve in picture.

cotbu · 03-14-2015, 10:06 PM

It's a bypass valve, works by vacuum.
It should be recirculated. Google how a bov works.

From a Highly Tuned Note 4.5!!!

Fuego · 03-15-2015, 09:54 AM

Quote:

Originally Posted by Mobbin240

Dude, dont bash on my post with sarcasm. Keep it to yourself. This is a place for even the least experienced enthusiast to come and learn.

You're going to notice a lot of people tell you to search, and it's because you should. Quit whining.

Mobbin240 · 03-15-2015, 03:46 PM

Quote:

Originally Posted by cotbu

It's a bypass valve, works by vacuum.
It should be recirculated. Google how a bov works.

From a Highly Tuned Note 4.5!!!

So i did the search, and your wrong. It takes a pressure source from the manifold side of the trottle body on the nipple and has a diaphram pressure feed hole by the piston valve. So equal pressure keeps the diaphram unchanged and it is held closed by only spring pressure under throttle. Then when your off throttle the manifold pressure changes to a vacuumand it acuates the valve.

HAHA aarrogance is next to godliness

Croustibat · 03-16-2015, 08:33 AM

Quote:

Originally Posted by Mobbin240

I plan on keeping this car under 15 psi untill i have supporting upgrades. Probably for a couple years. The HKS SQV4 is available on their website from HKSUSA.com for just under $300. the office is based in L.A..... why are my odds of finding a genuine valve so low? That IS genuine...

Interesting...

Most zilvia folks skimp on everything because they believe some 50$ crap from ebay does the same job as a 300$ valve from hks.
If you are going to buy it directly from HKS, then it should be genuine, yes. And you should be able to sell it later (it is genuine AND it makes that noise every kid dreams about). It still is a bulky valve with a small outlet, meaning when changing it you are going to need some bigger recircing pipes too. Your choice though.

cotbu · 03-16-2015, 09:32 AM

Quote:

Originally Posted by Mobbin240

So i did the search, and your wrong. It takes a pressure source from the manifold side of the trottle body on the nipple and has a diaphram pressure feed hole by the piston valve. So equal pressure keeps the diaphram unchanged and it is held closed by only spring pressure under throttle. Then when your off throttle the manifold pressure changes to a vacuumand it acuates the valve.

HAHA aarrogance is next to godliness

So, it doesn't work by vacuum...?

Hey at least you now know how almost every bov in the multi-verse works!

And yes, yes it is!

From a Highly Tuned Note 4.5!!!

ANDY black s13 · 03-16-2015, 10:07 AM

Quote:

Originally Posted by Croustibat

Interesting...

Most zilvia folks skimp on everything because they believe some 50$ crap from ebay does the same job as a 300$ valve from hks.
If you are going to buy it directly from HKS, then it should be genuine, yes. And you should be able to sell it later (it is genuine AND it makes that noise every kid dreams about). It still is a bulky valve with a small outlet, meaning when changing it you are going to need some bigger recircing pipes too. Your choice though.

Do you even actually know how these SSQV valves work?
the more boost they run the better they seal for a start!
or is this just your opinions on ALL dump/bov valves are [email protected] based on internet myths that people like you keep regurgitating ?
So you have fitted and used one of these?, be honest now as I doubt you have
because if you had and you fitted it correctly I would like to know why you feel the need to bash on it? running issues?
were do you get this idea they are small internally and can't flow?
have you even looked at the cross sectional diagram showing its internal diameter and how when the 2nd valve is open its the same size as the ID of the connector?
Now look at this as I doubt you ever have http://www.hks-power.co.jp/en/product/blow_off/sqv/
and quit with the internet myths that you have been regurgitating since at least 2008 when I joined the sxoc/zilvia/nicoclub etc
If you have any concrete data based on true facts from YOUR OWN experience of the part in question and usage post that FFS!

for the record I have tried just about ever valve out there and the ssqv was the only one to date that I had no running issues with
Yes you will if on a MAF get a split second of over fuel,and a pop of flame
if the exhaust is hot but who don't run a turbo and car and like flames?
don't answer that one crusty as I know your opinions

Mobbin240 · 03-16-2015, 11:17 AM

Quote:

Originally Posted by ANDY black s13

Do you even actually know how these SSQV valves work?
the more boost they run the better they seal for a start!
or is this just your opinions on ALL dump/bov valves are [email protected] based on internet myths that people like you keep regurgitating ?
So you have fitted and used one of these?, be honest now as I doubt you have
because if you had and you fitted it correctly I would like to know why you feel the need to bash on it? running issues?
were do you get this idea they are small internally and can't flow?
have you even looked at the cross sectional diagram showing its internal diameter and how when the 2nd valve is open its the same size as the ID of the connector?
Now look at this as I doubt you ever have http://www.hks-power.co.jp/en/product/blow_off/sqv/
and quit with the internet myths that you have been regurgitating since at least 2008 when I joined the sxoc/zilvia/nicoclub etc
If you have any concrete data based on true facts from YOUR OWN experience of the part in question and usage post that FFS!

for the record I have tried just about ever valve out there and the ssqv was the only one to date that I had no running issues with
Yes you will if on a MAF get a split second of over fuel,and a pop of flame
if the exhaust is hot but who don't run a turbo and car and like flames?
don't answer that one crusty as I know your opinions

Cant you eleminate the rich mix between shifts by recirculating the ssqv? They off a recirc fitting for it. $30.00

ANDY black s13 · 03-16-2015, 12:20 PM

Quote:

Originally Posted by Mobbin240

Cant you eleminate the rich mix between shifts by recirculating the ssqv? They off a recirc fitting for it. $30.00

Yes of course if re-cuirced you should have no over fuel issues
I did have the re-circ fitting on another ssqv, the early adjustable version
with the eight sided back end, worked fine as it seals perfectly
but I always ran vent to atmos, gold triple fin insert is my fav

Croustibat · 03-17-2015, 03:38 AM

Quote:

Originally Posted by ANDY black s13

A bunch of crappy, agressive troll

Dude, i don't know what happened to you, but seriously ? Piss off.

I know how a double piston valve work, thanks. And i also know 19mm is too small a diameter to get a working recirc at higher boost, WHICH IS EXACTLY WHAT I WROTE.

Cunt.

Sileighty_85 · 03-17-2015, 03:52 AM

Wow this a lot of overthinking for a BOV. Just buy a Greddy Type-R BOV and be done with it.

ANDY black s13 · 03-17-2015, 06:41 AM

Quote:

Originally Posted by Croustibat

Dude, i don't know what happened to you, but seriously ? Piss off.

I know how a double piston valve work, thanks. And i also know 19mm is too small a diameter to get a working recirc at higher boost, WHICH IS EXACTLY WHAT I WROTE.

Cunt.

Ha Ha and your arrogance shines through again crusty
,Cunt! really? that would be the thing your mum shaves with a broken bottle,
but we don't want the whole world to know that do we

So you haven't used one as I expected and if you had looked at one
you would know that the opening is 29mm not 19? and the body of the valve is bigger internally,
SO were is your data that these can't flow? you haven't tested one, but I'm sure a large company like HKS would have done endless testing and as it works during testing they then made it and have done for some time

but the op asks for advice from people who have used one,
and you just wade in with negativity based on what? you haven't used one and just rolled all BOV's into the there crap (again)
At least I post an opinion based on using one of these and give the OP some useful advice
so what did you bring to the party? was it useful info?

Croustibat · 03-17-2015, 04:40 PM

HKS sells a shiny bov for stupid people who like toys that make a woosh sound. the kind of people that slam their car on the ground so it looks cool and ride like crap, the kind of people who prefer the woosh sound of a BOV to a working MAF based engine management. Like... oh i don't know.

You, maybe ? Yup.

But hey, this is zilvia i guess. Keep playing with shiny toys making woosh noises. Have fun listening to the sound produced by your "favorite shiny gold insert".

Meanwhile, adults are talking about things you don't seem to understand, aka recirculated valves. You know, the kind of thing i have done, and the kind of thing you did not ?

Kingtal0n · 03-17-2015, 08:36 PM

An authentic HKS is a great bypass for non-recirculated setups running stock turbochargers with maf sensors that are placed at a greater than factory distance from the compressor inlet.

That said, if you arn't confused enough already, you shouldn't run one because it lacks the vacuum recirculating action provided by other popular "push type" bypass valves, such as the greddy type-S or HKS race models, which allow the compressor to bypass during idle, and all off throttle positions (instead of only high vacuum off throttle situations) which will keep your turbocharger healthy, more free from wear and tear.

Many people do not realize how important it is to have the bypass hang open around idle, recirculated. And always keep as much length between the compressor and maf as possible.

03-12-2015, 05:09 PM	#1
Mobbin240 Join Date: Feb 2009 Location: Salt Lake City, UT Age: 30 Posts: 11 Trader Rating: (0) Feedback Score: 0 reviews	HKS BoV queation? So my question is, Is the HKS ssqv4 really universal? I'm doing an SR swap and I'm looking for an aftermarket bov/recirculating valve. Im plan to start with factory 7psi and turn it up a bit. I need flexability. Ive come to understand that because this valve has a diferent pressure management system it can run low to high boost levels. Is this true? How low? And how high? What springs/adjusting is involved? Just so i know.... My SR coupe and I thank you!

03-12-2015, 06:48 PM	#4
angel mkiv Zilvia Addict Join Date: Sep 2009 Location: Seattle, wa Posts: 725 Trader Rating: (4) Feedback Score: 4 reviews	It doesn't have a adjustment and works with whatever boost you run __________________ Instagram username:angelmkiv

03-14-2015, 10:06 PM	#10
cotbu Post Whore! Join Date: Sep 2005 Location: SWFL Age: 47 Posts: 3,318 Trader Rating: (3) Feedback Score: 3 reviews	It's a bypass valve, works by vacuum. It should be recirculated. Google how a bov works. From a Highly Tuned Note 4.5!!! __________________ LoverTechnologies "Half Broken Things!"

03-17-2015, 03:52 AM	#19
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	Wow this a lot of overthinking for a BOV. Just buy a Greddy Type-R BOV and be done with it. __________________ 後輪駆動車１番 1989 Built SR GT2871R -363whp 1998 S14 W/RB25- 250ish (For Now) 1986 SR86 - 200ish 1990 R32 GTR - 320hp Don't Buy Engines from JDM-Online http://zilvia.net/f/businesses/207457-jdm-online.html Don't Buy XS-Power or SSAC Shit

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03-12-2015, 05:34 PM	#3
Mobbin240 Join Date: Feb 2009 Location: Salt Lake City, UT Age: 30 Posts: 11 Trader Rating: (0) Feedback Score: 0 reviews	Ok i should have stated more specificly. I understand all bov's are "universal" but my expression of universal was towards the psi rating of the valve. And yes, im running recirc for emissions and overall driveability. The BOV doesnt seem to have an adjusting screw so it is either a set psi range or has interchangeable springs OR it doesnt adjust, and it works for a wide range of boost levels

03-12-2015, 07:18 PM	#5
feito Nissanaholic! Join Date: May 2007 Location: Texas Posts: 1,948 Trader Rating: (1) Feedback Score: 1 reviews	lets see, have you tried googling "ssqv 4 adjustable"?

03-13-2015, 11:56 AM	#6
Croustibat Nissanaholic! Join Date: Aug 2011 Location: France - Toulouse Age: 41 Posts: 1,851 Trader Rating: (0) Feedback Score: 0 reviews	The chances to buy a genuine SSQV are approx. nil . If you are going to recirc a valve, i would not use an SSQV unless staying at low boost (like less than 15psi). The exhaust port is really small. I am running a recirced Greddy type RS (because it was a second hand, genuine one, for cheap, and came with a hotpipe). It uses 2 springs though, so will leak under vacuum like all dump valves with this design. But as it is recirced, this is not a problem.

03-17-2015, 04:40 PM	#21
Croustibat Nissanaholic! Join Date: Aug 2011 Location: France - Toulouse Age: 41 Posts: 1,851 Trader Rating: (0) Feedback Score: 0 reviews	HKS sells a shiny bov for stupid people who like toys that make a woosh sound. the kind of people that slam their car on the ground so it looks cool and ride like crap, the kind of people who prefer the woosh sound of a BOV to a working MAF based engine management. Like... oh i don't know. You, maybe ? Yup. But hey, this is zilvia i guess. Keep playing with shiny toys making woosh noises. Have fun listening to the sound produced by your "favorite shiny gold insert". Meanwhile, adults are talking about things you don't seem to understand, aka recirculated valves. You know, the kind of thing i have done, and the kind of thing you did not ?

03-17-2015, 08:36 PM	#22
Kingtal0n Post Whore! Join Date: Jul 2005 Location: South Florida Age: 38 Posts: 4,646 Trader Rating: (17) Feedback Score: 17 reviews	An authentic HKS is a great bypass for non-recirculated setups running stock turbochargers with maf sensors that are placed at a greater than factory distance from the compressor inlet. That said, if you arn't confused enough already, you shouldn't run one because it lacks the vacuum recirculating action provided by other popular "push type" bypass valves, such as the greddy type-S or HKS race models, which allow the compressor to bypass during idle, and all off throttle positions (instead of only high vacuum off throttle situations) which will keep your turbocharger healthy, more free from wear and tear. Many people do not realize how important it is to have the bypass hang open around idle, recirculated. And always keep as much length between the compressor and maf as possible.