Welcome to the North American Subaru Impreza Owners Club Wednesday September 17, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Reviews > Car Part Reviews

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 03-25-2002, 11:22 PM   #1
krave
Scooby Specialist
Member Sales Rating: (0)
 
Member#: 13908
Join Date: Jan 2002
Location: Irving, TX
Vehicle:
2002 WRX Sedan
296 whp

Default HKS Super SQV BOV

I purchased this with the flange already attached, and it was really easy to install (5 minutes). The kit comes with the bov attatched to the flange, some vacuum hose, and a plug to stop up the bypass hose. You reuse the bolts from removing the factory bypass.

I've heard a lot of good reviews about HKS BOV and I'm pretty satisfied with it. The BOV itself is pretty big and it's loud (almost too loud). I haven't heard any backfires from the computer thinking a bypass is in place yet. I'll update this review once I get the recirculation kit.

NOTE: I felt no improvement performance wise over the stock bypass valve, but maybe this will come in handy when I get rid of the TD04.

Here is a pic of it installed
* Registered users of the site do not see these ads.

Last edited by krave; 03-27-2002 at 02:50 PM.
krave is offline   Reply With Quote
Old 03-26-2002, 11:17 AM   #2
2OHOH2WRX
Scooby Specialist
Member Sales Rating: (7)
 
Member#: 11888
Join Date: Nov 2001
Location: CHS, SC, USA
Default

There is actually a performance loss that comes with installing an atmo-BOV.

It is a very-good sounding valve, and I'm happy with mine. I also have the recirculation kit coming in the mail soon, so I'll have the option of running it either loud or fast as I choose
2OHOH2WRX is offline   Reply With Quote
Old 03-26-2002, 11:30 AM   #3
krave
Scooby Specialist
Member Sales Rating: (0)
 
Member#: 13908
Join Date: Jan 2002
Location: Irving, TX
Vehicle:
2002 WRX Sedan
296 whp

Default

Can you let me know how the recirculation install goes? I haven't placed an order on mine yet.
krave is offline   Reply With Quote
Old 03-26-2002, 02:38 PM   #4
2OHOH2WRX
Scooby Specialist
Member Sales Rating: (7)
 
Member#: 11888
Join Date: Nov 2001
Location: CHS, SC, USA
Default

Will do. Seems very straight-forward. There's a little extension that mounts inside the BOV opening, which can then be used to connect a hose (any proper-diameter radiator hose would do) back to where the stock return hose goes. I should be getting it any day...
2OHOH2WRX is offline   Reply With Quote
Old 03-28-2002, 10:02 AM   #5
2OHOH2WRX
Scooby Specialist
Member Sales Rating: (7)
 
Member#: 11888
Join Date: Nov 2001
Location: CHS, SC, USA
Default

OK, here's info on the recirc adapter:

- I bought it from Tom at Lightning Motorsports in LA, phone #: +1 225 752 2738.

- It requires the removal of 4 allen bolts. That's it.

- since this isn't a _kit_, it does not include the hose. IMHO, this is a good thing, because it allows us to get a piece of hose that fits our particular need, rather than being forced to mount the BOV in a specific location as allowed by a kit hose.

I'll post pics soon.
2OHOH2WRX is offline   Reply With Quote
Old 03-28-2002, 10:35 AM   #6
2OHOH2WRX
Scooby Specialist
Member Sales Rating: (7)
 
Member#: 11888
Join Date: Nov 2001
Location: CHS, SC, USA
Default

These are the four screws that have to be removed:
2OHOH2WRX is offline   Reply With Quote
Old 03-28-2002, 10:36 AM   #7
2OHOH2WRX
Scooby Specialist
Member Sales Rating: (7)
 
Member#: 11888
Join Date: Nov 2001
Location: CHS, SC, USA
Default

This is recirc tube (spun aluminum) that I bought, along with the rest of the BOV:
2OHOH2WRX is offline   Reply With Quote
Old 03-28-2002, 10:37 AM   #8
2OHOH2WRX
Scooby Specialist
Member Sales Rating: (7)
 
Member#: 11888
Join Date: Nov 2001
Location: CHS, SC, USA
Default

...and here is the finished product:
2OHOH2WRX is offline   Reply With Quote
Old 03-29-2002, 05:20 PM   #9
UKS
Scooby Newbie
Member Sales Rating: (0)
 
Member#: 16990
Join Date: Mar 2002
Location: Orange County, Los Angeles
Vehicle:
n00b don't hate this
Bimmer...grow up riceb0y

Default

Quote:
Originally posted by 2OHOH2WRX
There is actually a performance loss that comes with installing an atmo-BOV.

It is a very-good sounding valve, and I'm happy with mine. I also have the recirculation kit coming in the mail soon, so I'll have the option of running it either loud or fast as I choose
I have a question regarding this BOV: 1. Is there really a performance loss over the stock BOV? 2. Is the recirculation kit recommended? and can you buy it with the BOV?
UKS is offline   Reply With Quote
Old 03-29-2002, 09:06 PM   #10
2OHOH2WRX
Scooby Specialist
Member Sales Rating: (7)
 
Member#: 11888
Join Date: Nov 2001
Location: CHS, SC, USA
Default

UKS:

1 - any time air that has already been measured for combustion escapes into the atmosphere rather than back into the intake tract, it throws off the A/F ratio because the ECU thinks the vented air is still available for use

2 - the recirculation kit counteracts 1 above, so it is recommended _if_ you want maximum performance rather than maximum noise

3 - I bought the two items separately, from two different vendors, but it's likely that if a vendor has one, he/she may have the other

A few more points:

- the performance reduction from atmo venting isn't large, so sacrificing that little bit for being able to scare the crap out of people and turn heads is probably worth it to most people

- the stock BOV has been used successfully as high as ~380hp, last I heard, so clearly it does not need to be replaced, unless, again, you want the "cool" sound

- the recirc tubing is easily clamped off, so with 1 minute of work (pop hood, get out, open hood, unscrew hose, screw cap on hose, close hood, get back in car), you can switch between atmo or recirc at will

- if you ever get into higher power levels, ones that require standalone engine management based on MAP (Manifold Absolute Pressure) rather than MAF (Mass Air Flow, what stock Subies have), then there will be no need for recirculation, as the ECU will base its calculations on the air present in the manifold, not what's before it
2OHOH2WRX is offline   Reply With Quote
Old 03-30-2002, 04:55 AM   #11
UKS
Scooby Newbie
Member Sales Rating: (0)
 
Member#: 16990
Join Date: Mar 2002
Location: Orange County, Los Angeles
Vehicle:
n00b don't hate this
Bimmer...grow up riceb0y

Default THANKS

To 2OHOH2WRX;
Many thanks for the information. This helps a lot!
UKS is offline   Reply With Quote
Old 03-30-2002, 08:29 AM   #12
2OHOH2WRX
Scooby Specialist
Member Sales Rating: (7)
 
Member#: 11888
Join Date: Nov 2001
Location: CHS, SC, USA
Default

No problem. Glad it helped
2OHOH2WRX is offline   Reply With Quote
Old 03-31-2002, 12:24 PM   #13
Leonardo
Consigliere
Super Moderator
Member Sales Rating: (3)
 
Member#: 185
Join Date: Aug 1999
Chapter/Region: South East
Location: Orlando, Fl
Vehicle:
2009 Civic EX
Silver

Default

One would need a different recirculation hose if the BOV is in the stock location.

Leo
Leonardo is offline   Reply With Quote
Old 03-31-2002, 12:53 PM   #14
2OHOH2WRX
Scooby Specialist
Member Sales Rating: (7)
 
Member#: 11888
Join Date: Nov 2001
Location: CHS, SC, USA
Default

Right, so it's just as well that HKS sells just the recirc fitting
2OHOH2WRX is offline   Reply With Quote
Old 03-31-2002, 10:09 PM   #15
my WeRX
Scooby Newbie
Member Sales Rating: (0)
 
Member#: 16977
Join Date: Mar 2002
Location: virginia beach
Vehicle:
2002 WRX Sedan
WR Blue Pearl

Default where to buy?

can anyone help me out on where to buy the SSQV BOV Kit for WRX *AND* the recirculation kit for the WRX?
i can find the SSQV BOV Kit for WRX for $280, and i can't even find the recirculation kit for WRX.
what exactly does the recirculation kit do?
does it muffle the noise it makes while giving a better performance?
any help would be greatful.
thanks in advance!
my WeRX is offline   Reply With Quote
Old 03-31-2002, 10:20 PM   #16
2OHOH2WRX
Scooby Specialist
Member Sales Rating: (7)
 
Member#: 11888
Join Date: Nov 2001
Location: CHS, SC, USA
Default

Read 6 posts up to get most of your answers, and a few above that to the rest of them
2OHOH2WRX is offline   Reply With Quote
Old 04-01-2002, 01:33 AM   #17
AK_2002_WRX
Scooby Specialist
Member Sales Rating: (0)
 
Member#: 10591
Join Date: Sep 2001
Chapter/Region: AKIC
Location: anch, ak
Vehicle:
2004 Silverado SS
Victory Red

Talking

so how about some sound clips.

i have a Forge BOV, but i like how distinct the HKS sounds.
AK_2002_WRX is offline   Reply With Quote
Old 04-04-2002, 12:03 AM   #18
View Askew
Scooby Specialist
Member Sales Rating: (0)
 
Member#: 14714
Join Date: Jan 2002
Location: Cali
Vehicle:
'02 WRX
01G

Default

I just installed the kit about 20 min ago. Just gotta say that it kicks a$$!!! The sound is awesome and the install was a piece of cake. I LOVE THIS BOV!!

Here is a site that has the sound clips for alot of BOV's. Enjoy.
http://www.alltrac.net/tuning/blowoffvalve.html
View Askew is offline   Reply With Quote
Old 04-07-2002, 03:11 PM   #19
White01
Scooby Specialist
Member Sales Rating: (0)
 
Member#: 1913
Join Date: Jul 2000
Location: Ashtabula, OH
Vehicle:
2002 WRX
Silver

Default

Question, I see from the pics that you have to put that piece on the end of the BOV so the hose will fit on. If you want to make it 100% vent do you just need to pull that hose off or do you need to take out that metal piece?

Also if that metal piece is kept on, does the sound change when it is 100% vent to the atmosphere?

Thanks!
White01 is offline   Reply With Quote
Old 04-07-2002, 03:29 PM   #20
2OHOH2WRX
Scooby Specialist
Member Sales Rating: (7)
 
Member#: 11888
Join Date: Nov 2001
Location: CHS, SC, USA
Default

To change the BOV from a recirc back to a vent you would need to:

- pop off the hose

- close up the hose (stopper, cork, plug, whatever)

Although I haven't timed myself doing this, I'd say it takes less than a minute to do, going either way.

The sound is deeper. It still whistles, but the whistle is not nearly as high-pitched as with the other piece being in. It's a nicer, even more unique sound
2OHOH2WRX is offline   Reply With Quote
Old 05-11-2002, 02:09 PM   #21
Code-7
Scooby Newbie
Member Sales Rating: (0)
 
Member#: 5077
Join Date: Mar 2001
Location: "Ludicrous speed....GO!!!"
Vehicle:
'97 e39 540i6
Black

Default

Just a few questions:

There are two hoses that connect to the stock BOV. There's one under the intercooler that's about an 1" in diameter which clamps on, than the small 1/4" hose which slides into the side.

Now, with the recirculation fitting, what more do I need to buy?

Do I need to attach a hose to the rc fitting and connect it to the big hose under the intercooler?
Code-7 is offline   Reply With Quote
Old 05-11-2002, 04:09 PM   #22
2OHOH2WRX
Scooby Specialist
Member Sales Rating: (7)
 
Member#: 11888
Join Date: Nov 2001
Location: CHS, SC, USA
Default

You need to get a hose (or an adapter fitting to use the stock hose) to go from the recirc fitting back to where the OEM hose goes.
2OHOH2WRX is offline   Reply With Quote
Old 06-10-2002, 12:21 AM   #23
jbdadog
Scooby Newbie
Member Sales Rating: (0)
 
Member#: 12820
Join Date: Nov 2001
Default pix?

Amy pic of the recirculatory hose that ya made. I have been sitting here trying to figure a way to make it recirculatory for hours. I have hoses just they end up bending to much. Thanks so much!
jbdadog is offline   Reply With Quote
Old 06-10-2002, 05:01 PM   #24
2OHOH2WRX
Scooby Specialist
Member Sales Rating: (7)
 
Member#: 11888
Join Date: Nov 2001
Location: CHS, SC, USA
Default

I'll have some up in a day or so.

I used a combination of stock hose, hose adapter, and a length of hose that I got from Home Depot for a few bucks. Surprisingly enough, a lot of the BOV noise is still there, which I consider a plus - not only does is recirc, it also sounds much better than stock while doing it
2OHOH2WRX is offline   Reply With Quote
Old 06-10-2002, 05:13 PM   #25
jbdadog
Scooby Newbie
Member Sales Rating: (0)
 
Member#: 12820
Join Date: Nov 2001
Default thanks

thanks so much!!
jbdadog is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
FS:noVA: HKS Super SQV BOV Ceez3607 MAIC Private Classifieds 22 05-20-2008 12:38 PM
FS:noVA: HKS Super SQV BOV Ceez3607 Engine/Power/Exhaust 19 05-07-2008 08:32 PM
WTS: HKS Super SQV BOV irascible SWIC Private Classifieds 6 12-29-2007 09:50 PM
WTS: HKS Super SQV BOV irascible Engine/Power/Exhaust 0 12-24-2007 04:23 PM
HKS Super SQV BOV ill_nometry Engine/Power/Exhaust 0 04-04-2007 01:05 AM


All times are GMT -4. The time now is 07:36 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.