HKS ssqv flutter???????? [Archive]

speed3se-r

10-26-2007, 09:26 AM

All HKS ssqv past and present owners please respond!

I know this has been beaten to death a million times over, but from everyone who has or has had this "flutter" are you sure air is even venting out? Mine does not. I cannot find any further information other than fluttering is part of the way this unit is supposed to sound...which i still dont think is true. :confused::confused:

clos561

10-26-2007, 10:22 AM

yea it makes a wierd sound in recirc, ive had the valve for months now without problems. i would have thrown a cell if the air wasnt being vented i believe

speed3se-r

10-26-2007, 10:32 AM

so you assume air is being vented or are you sure? Fluttering is no joke, and can destroy a turbo. I want to find a cause for this disease. It seems like this HKS product has a high defect ratio. I want to see if there is a relationship between the fluttering at high boost and venting of air. Just to make sure that the people who hear this fluttering are also either getting air vented or not. Trying to draw a connection between that and my ssqv. more info needed....

Sierra117

10-26-2007, 10:53 AM

If your running VTA, I think that sound is actually the design of the fins inside the valve disrupting the air as it vents out. While I could be wrong, I always thought that 99% of the reason people ran the HKS SSQV was the sound it makes over your standard GReddy/TiAl/Apex'i units. Before know, save for the occasional FD, the only real turbo cars I've been in have been Supras, and almost all of them are running the SSQV, and they all made that sort of flutter/turkey gobble noise when venting.

knowledge007

10-26-2007, 11:17 AM

Im confused... Are we talking about Vent to Atoms or Recirc?

speed3se-r

10-26-2007, 12:35 PM

knowledge007

10-26-2007, 01:59 PM

First off, it does not sound the same from vtoa and recirc. They sound totally different. If they sound the same then there is something definetly wrong...

MazdaManiac

10-26-2007, 02:08 PM

"fa-fa-fa-fa" is the valve fluttering.
"ga-ga-ga-ga" is the turbo surging because the vent is insufficient.

I know that wasn't very scientific, but it is normal for the SSQBOV to "flutter" somewhat - especially on relatively low-boost applications (under 17 PSI) or part throttle lift.

When the turbo is surging, the flutter is much deeper and sounds like it is reverberating through the entire cold-side air tract.

clos561

10-26-2007, 03:05 PM

the valve makes a normal fluttering sound...on recirc you can hear it release the air..

does your turbo do this?
http://youtube.com/watch?v=MkkA-vfGWg0

speed3se-r

10-26-2007, 03:26 PM

the valve makes a normal fluttering sound...on recirc you can hear it release the air..

does your turbo do this?
http://youtube.com/watch?v=MkkA-vfGWg0

Yep, that sounds exactly like it! Now, what does a "normal" ssqv with the flutter sound like?

BoostedSpd6

10-26-2007, 03:33 PM

speed3se-r

10-26-2007, 09:30 PM

its supposed to flutter..it seals itself with boost i think.. im not sure but its something along those lines and thats why it flutters.. unless ur running over 20 psi its gonna flutter...ive had mine on for 3 months now and havent had any issues with it.

yeah, but it doesnt vent at all. There is ZERO air pressure exiting the bov after revving. Only fluttering noises.

clos561

10-27-2007, 10:30 AM

then you have a problem...mine doesnt do that and it works fine...........no1 has ever complained about hks not working properly...u'd be the first

Craighjr

10-27-2007, 10:50 AM

Run the valve in VTA and rotate it up towards the windshield. With the hood open just rev the engine up. You will see the purple point pull in for the high pitch small relief. If you rev it more the large black diaphram opens and the whole woshing thing happens. If not the valve is hooked up wrong or stuck shut.

knowledge007

10-28-2007, 11:43 AM

Yeah but wouldn't he be getting a check engine...oh well I suppose not.

CX-7owner

10-28-2007, 02:00 PM

Just avoid all of this and get a Forge BPV, direct replacement valve.

hellcat

10-28-2007, 02:21 PM

Get hard pipes and your flutter will go away. Ask the MSP guys about the turkey sound..lol. Your car will run much better with recirc.

Demi

10-28-2007, 02:30 PM

Yep, that sounds exactly like it! Now, what does a "normal" ssqv with the flutter sound like?

WOW! My HKS doesn NOT sound anything like that, and it doesnt "flutter" its a solid vent. I would be concerned.

Craighjr

10-28-2007, 04:28 PM

avarela86

10-28-2007, 05:31 PM

Wow that one video sounded like they didn't even have the vacuum line hook up to the BOV. Hope you solve your problem. I've had this but only because i've blown the line before and had to drive for a few miles without a BOV. Sounds cool but you know something is getting messed up...TURBO maybe. Good luck.

CX-7owner

10-28-2007, 05:42 PM

I would imagine no celo. The map is behind the throttle plate so the cars sensors probably don't even know its happening. (maf doesn't read pressure)Mazdaspeeds don't need hard pipes, or there isn't a place to put them really. The Forge valve isn't so great. You have to change springs to get the perfect tension to vent and I understand that for small psi numbers the forge doesn't even open.
That happens when you use a spring that is too strong, and you have to "adjust" other valves, the only spring that should be used is the yellow spring. It's not that hard to even change the spring, screw off, screw on.

speed3se-r

10-28-2007, 07:48 PM

man this sucks.

Demi

10-28-2007, 08:16 PM

man this sucks.

if your ride sounds anything like that video, yes my friend this does. I would get my stock BOV on there quick like.

nig3

10-28-2007, 09:12 PM

why did you buy an aftermarket bov, they just cause problems unless you really need it because your heavily modded. put the stock on back on and your car will drive better and be faster

speed3se-r

10-28-2007, 09:29 PM

yeah, stock one has been back on for while, im glad i didnt drive around too long with the hks unit.

Demi

10-28-2007, 09:49 PM

why did you buy an aftermarket bov, they just cause problems unless you really need it because your heavily modded. put the stock on back on and your car will drive better and be faster

Ill tell you why i bought an aftermarket. Because im an idiot. I love the sound. Thats it. I dont even know about the positive effects for the high mod bracket. I just love the noise. That sounds so low brow but that the reason. That sound alone is worth my $250. Sounds stupid and maybe it is, but thats the sound i want my car to have. I will do what ever it takes for the car to have that sound. Thats the thing about cars to me, its not just the HP or the torque, it the look, its the sound, its every thing. The car as a whole is the goal for me. I dont really care if i can smoke everyone that comes to call. I like good race. I dont care if i can out bump everyone that rocks my mirror, i like a good bass off. My car is my own and there is much more than functionality. It is my #1 concern, but there are things that i will pay for, (like my system) that will slow it down that im okay with because they add more to the overall experience for me. And thats what matters, is how i feel about the ride.

knowledge007

10-28-2007, 10:33 PM

All I know is that either one of two things are the cause of this...one, you installed it completely wrong, or two, this HKS is faulty. Either way I would get it replaced. My HKS is in perfect condition and is operational besides the fact I am heavey modded...

Sierra117

10-29-2007, 10:03 AM

why did you buy an aftermarket bov, they just cause problems unless you really need it because your heavily modded. put the stock on back on and your car will drive better and be faster

Tell that to the second gen DSM owners.

I think I saw somewhere (on here) that the stock BPV has a tendancy to leak. So that leads me to believe a new BPV would be a good buy. And the HKS is just the muts nuts.

knowledge007

10-29-2007, 10:09 AM

The stock bpv "may" rupture during high boost.

Sierra117

10-29-2007, 10:14 AM

Is that "may" as in damned good chance or "may" as in its the same probability as the dreaded hydrolock?

knowledge007

10-29-2007, 10:17 AM

I would say somewhere in between. Plus, it obvioulsy won't rupture running the stock maps.

fourthmeal

10-29-2007, 11:09 AM

Tell that to the second gen DSM owners.

I think I saw somewhere (on here) that the stock BPV has a tendancy to leak. So that leads me to believe a new BPV would be a good buy. And the HKS is just the muts nuts.

If they are the same BOV's used in Supras, I'd say the HKS SSQV isn't exactly the best choice. An independent test showed they were dog-slow and caused ripples all the time. If I remember correctly, their racing valve was far better, and Blitz made a great one too. IMO, Forge doesn't have it quite right, either. Too much trouble with springs and shims, and some people seem to complain that they can't quite get it dialed in. This is like trying to get momma bear's porridge, if you know what I mean. As far as I know, the HKS and Forge both have more issues then its worth. Do we have other (recirc) options?

In the supra world, the Bosch BOV used on Porches seemed to be a great alternative. I loved mine.

CX-7owner

10-29-2007, 11:16 AM

What issue, use one spring, the yellow one.

Valve Spring color coding
Green - 5-15 PSI
Yellow - 15-23 PSI
Blue - 23-30 PSI
Red - 30 + PSI

I don't see the problem or issue.

fourthmeal

10-29-2007, 12:08 PM

Ask around, this isn't universally agreed on.

CX-7owner

10-29-2007, 12:15 PM

Ask around, this isn't universally agreed on.
I know, but there shouldn't be any debate, the yellow spring should be used and nothing else. More tension makes the valve harder to open(increasing lag, not opening at low boost, etc.)

Sierra117

10-29-2007, 12:31 PM

I know, but there shouldn't be any debate, the yellow spring should be used and nothing else.

If actual usage shows that the blue or red spring performs better for the application, then why should there be no debate?

CX-7owner

10-29-2007, 12:36 PM

If actual usage shows that the blue or red spring performs better for the application, then why should their be no debate?
Where is the data logging to back this up?

SicSpeed

10-31-2007, 12:19 PM

I know, but there shouldn't be any debate, the yellow spring should be used and nothing else. More tension makes the valve harder to open(increasing lag, not opening at low boost, etc.)

I think you mean the stronger tension has a less chance of leaking boost so that means more boost(power) As long there is no compressor surging you will decrease any boost lag with a higher tension spring.

fourthmeal

10-31-2007, 01:10 PM

EEK. This is what I was talking about. How about a valve option that doesn't require this adjustment? Example: The Bosch BOV I mentioned. Plus it was $45 at a Volvo dealer!

Also, what about the new version of SSQVII?

andres20_t

11-02-2007, 01:55 PM

well i just installed my ssqv last week n propably that fluttering is due to a leak of air on the flenge... i noticed this cuz my car was running slower ... less pressure.... so i checked out n adjusted n it fixed this... that little ring tightener on the flenge should be very tight spo no air scpaes... now idk bout recirc it should sound different

Drag Limited

11-20-2007, 11:41 PM

Ill tell you why i bought an aftermarket. Because im an idiot. I love the sound. Thats it. I dont even know about the positive effects for the high mod bracket. I just love the noise. That sounds so low brow but that the reason. That sound alone is worth my $250. Sounds stupid and maybe it is, but thats the sound i want my car to have. I will do what ever it takes for the car to have that sound. Thats the thing about cars to me, its not just the HP or the torque, it the look, its the sound, its every thing. The car as a whole is the goal for me. I dont really care if i can smoke everyone that comes to call. I like good race. I dont care if i can out bump everyone that rocks my mirror, i like a good bass off. My car is my own and there is much more than functionality. It is my #1 concern, but there are things that i will pay for, (like my system) that will slow it down that im okay with because they add more to the overall experience for me. And thats what matters, is how i feel about the ride.

I wish everyone thought like this! It would make the world a better place. Although an all out 1/4 mile car or autoX car is alot of fun, it's not what makes me really happy, it took me ALOT of money to realize a car that impresses my friends the most wont always make me happy. (iagree)

Sierra117

11-21-2007, 09:59 AM

EEK. This is what I was talking about. How about a valve option that doesn't require this adjustment? Example: The Bosch BOV I mentioned. Plus it was $45 at a Volvo dealer!

Because that would be to easy, and easy isn't fun.

speed3se-r

11-21-2007, 02:36 PM

update:
Got a new HKS SSQV. Works 100% like it should. Does "flutter" under light boost, but definitely is not compressor flutter which i did have. The HKS "flutter" has a slight hisssss to it and is not as loud as compressor flutter. If you are having issues with your hks, make sure that if you think you hear flutter, then also make sure that it is indeed venting pressure. If NOT, you have a problem.

mikespeed3

11-24-2007, 06:09 PM

Either, Or. The fluttering can still be heard when i attached the recirculate tube on, so obviously its my turbo causing the noise. But like mentioned in one of the posts above, a majority of people say that it is supposed to create this "fluttering" noise due to the design. All i am wondering is, IF
, you hear this "fluttering" are you making sure that your blow off valve indeed releases pressure, either into the atmosphere or is recirculated, either way are you POSITIVE that it vents? (mainly at high boost)...that is if you hear this "fluttering".
the fluttering you are talking about is surge, it is bad for the turbo, it can be tuned out, it is simple, just twist the bolt on the back of the SSQV unit, tune it until there is no surge, its not hard at all. the reason for the "high failure rate" is because people do not know how to tune them, and it is all the ricer kids who are just buying them for the sound, and get surge, and think it is cool sounding

MazdaManiac

11-24-2007, 07:22 PM

The HKS SSQBOV doesn't have an adjustment screw.

speed3se-r

11-24-2007, 08:34 PM

The HKS SSQBOV doesn't have an adjustment screw.

Correct, the newer HKS SSQV's do not have adj. screws. HKS redesigned the units because people were messing with the screws. The screws were originally designed for idling issues.

mikespeed3

12-03-2007, 01:39 PM

well my ssqv has one, so i must have a first gen ssqv? and when it "flutters" you just adjust it until it is set correct

mikespeed3

12-03-2007, 01:39 PM

The HKS SSQBOV doesn't have an adjustment screw.

actually they do... maybe not the newer generations, but i have an SSQV with adjustment boot

Demi

12-04-2007, 07:12 PM

Okay sorry to necro this thread but i just installed my Injen CAI and now im getting flutter too! ARGGG! It does not happen when im just revving the engine, and it doesnt do it when im driving hard, it only happens when i shift mid RMPs (read: 3500-5000). I have a newer model and i dont think i have the adjustment screw. What can i do?!?! I would hate to think that i have to pick which $250 part i have to take off..... HELP!!!

speed3se-r

12-04-2007, 07:19 PM

I do think that it is supposed to "flutter", but NOT COMPRESSOR FLUTTER which sounds WAY different. I know, i've experienced it! Does the "fluttering" have a hissing noise to it? It sounds like your ok because it should only "flutter" under light boost, ie: driving normally. Can you post a good quality sound clip?

Okay sorry to necro this thread but i just installed my Injen CAI and now im getting flutter too! ARGGG! It does not happen when im just revving the engine, and it doesnt do it when im driving hard, it only happens when i shift mid RMPs (read: 3500-5000). I have a newer model and i dont think i have the adjustment screw. What can i do?!?! I would hate to think that i have to pick which $250 part i have to take off..... HELP!!!