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Old 07-20-2013, 03:59 PM   #626
nimbusoul
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thanks for the info ! answered allot of my questions !
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Old 07-29-2013, 06:03 PM   #627
AFwrx11
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if you put a BOV on your car, should you bring your car in for a tune?
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Old 08-03-2013, 04:21 AM   #628
i_c_the_light
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Quote:
Originally Posted by AFwrx11
if you put a BOV on your car, should you bring your car in for a tune?
No.45
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Old 08-25-2013, 12:54 PM   #629
kwall13
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Good to know about the surge, I thought it was damaging too.
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Old 08-27-2013, 03:48 PM   #630
1drtywrx
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helpful writeup!
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Old 08-29-2013, 08:51 PM   #631
oyecubano7
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2005 WRX
Silver

Default Hks ssqv

what about hks ssqv valves?
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Old 09-07-2013, 02:30 PM   #632
grizam303
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Quote:
Originally Posted by brett192 View Post
I disconnected my stock BPV from the recirc hose last weekend, plugged the hose with a 1" PVC plug (used in plumbing) and then went for a drive to hear the rice.

Upon starting, the car runs like crap, fluctuating idle and sometimes stalling if I let the RPM drop too far. I couldn't even let the car idle unassisted.

Now, why is it that I can go from a perfectly running car, to this, by simply disconnecting the recirc hose? I would understand it running poorly after a few vents to atmosphere, but immediately after starting? I don't even think the ECU can 'learn' that quickly.

Other than the idling problem, it popped a few flames and would be extemely shaky starting out in 1st and shifting into 2nd. It is not shaky for the most part with the BPV connected.

Reconnected the BPV and car instantly runs 100% better.

For anyone reading this now; the stock BPV is slightly open in idle vacuum, so if the end is open to atmosphere, it is pulling in unmetered, unfiltered air that the ecu is trying to adjust for, but can't (wavering idle). After a shift, the blow-off creates the reverse condition; metered air never reaches the engine. This accounts for flames from unburned fuel.

Immediately after starting, you're getting unmetered air that causes lean conditions and misfires.

Necrothread!
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Old 09-09-2013, 04:56 AM   #633
DuaneGoodman_STi
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lots of useful info on here. good stuff 2 know
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Old 09-26-2013, 10:45 PM   #634
Kochi_STi
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Glad I read through this. Good to know about the surge and running rich conditions.
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Old 09-30-2013, 12:10 AM   #635
cab1129
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I absolutely love my hks ssqv bov!!!! its great!
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Old 10-23-2013, 09:46 PM   #636
AWD-Junkie
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Great write up!!
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Old 10-28-2013, 01:30 PM   #637
Anthony3991
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Default Great

A lot of good information here
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Old 10-29-2013, 08:37 AM   #638
Kraj81
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This may or may be related to this thread but I recently installed the Perrin SR intake and immediately noticed a sucking of air and when I shifted the release sound which I can't really describe without sounding stupid by typing it but I will, phissssh and I noticed that I can hear it when I accelerate after entering 5th gear and I let off the pedal to release the air. Is it safe to assume that sound is just the intake? Car is stock with the only mod being the intake.

Now as far as I can tell from what I've read here, there are bad and good BOVs and it is not a good mod unless you go bigger turbo or you just like the sound but it is also not a bad mod because you like the sound but ultimately is a personal preference thing.

I'm super new to Subarus and modification and I rely on the expertise and experiences of all the individuals on here but I must say that the unnecessary bickering and cred throwing around is a bit off putting for noobs like myself who gains nothing from it and continue to ask questions that would irk people and get the "did you not read the whole thread" spiel.

As always, thanks for the input and I will reread this thread to figure out the answer to if a BOV is a really necessary mod or not.
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Old 11-03-2013, 11:16 AM   #639
JustinWursten
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Quote:
Originally Posted by Kraj81 View Post
This may or may be related to this thread but I recently installed the Perrin SR intake and immediately noticed a sucking of air and when I shifted the release sound which I can't really describe without sounding stupid by typing it but I will, phissssh and I noticed that I can hear it when I accelerate after entering 5th gear and I let off the pedal to release the air. Is it safe to assume that sound is just the intake? Car is stock with the only mod being the intake. Now as far as I can tell from what I've read here, there are bad and good BOVs and it is not a good mod unless you go bigger turbo or you just like the sound but it is also not a bad mod because you like the sound but ultimately is a personal preference thing. I'm super new to Subarus and modification and I rely on the expertise and experiences of all the individuals on here but I must say that the unnecessary bickering and cred throwing around is a bit off putting for noobs like myself who gains nothing from it and continue to ask questions that would irk people and get the "did you not read the whole thread" spiel. As always, thanks for the input and I will reread this thread to figure out the answer to if a BOV is a really necessary mod or not.
I'm pretty damn sure that's just the intake sound our hearing! And just wondering, but you said that it's your only mod, did you tune for it with an accessport or anything? Because if not you need to get it tuned!
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Old 11-18-2013, 01:36 AM   #640
Herc6180
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outstanding post, VERY informative.
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Old 11-21-2013, 02:38 AM   #641
sals7tmp
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Quote:
Originally Posted by cab1129 View Post
I absolutely love my hks ssqv bov!!!! its great!
I loved mine too, but after about a year, it completely failed on me. Great sound but ultimately won't go back.
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Old 11-24-2013, 01:06 AM   #642
Kevin5255
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JBP

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Can anyone tell me what type of BOV I should be looking for to replace this piece of junk?

http://www.ebay.com/itm/Universal-HK...f2ebba&vxp=mtr

All of the decent BOV's I can find are made for a TMIC, and I'm running a FMIC so I don't have the flange. If I could get an adapter to use a TMIC flange I would probably go back to stock.


**Edit: Found what I needed

http://www.kstech.biz/servlet/the-68...dsh-off/Detail

Hopefully this will help someone else in the future.

Last edited by Kevin5255; 11-24-2013 at 01:59 AM.
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Old 11-25-2013, 04:05 PM   #643
jwhy89
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WRB

Default Thanks for the post.

Very helpful.
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Old 11-29-2013, 01:34 AM   #644
iThe_One
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learned a lot thanks
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Old 11-29-2013, 11:49 AM   #645
amalgrover
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2009 Forester XT

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Quote:
Originally Posted by Kevin5255 View Post
Can anyone tell me what type of BOV I should be looking for to replace this piece of junk?

http://www.ebay.com/itm/Universal-HK...f2ebba&vxp=mtr

All of the decent BOV's I can find are made for a TMIC, and I'm running a FMIC so I don't have the flange. If I could get an adapter to use a TMIC flange I would probably go back to stock.


**Edit: Found what I needed

http://www.kstech.biz/servlet/the-68...dsh-off/Detail

Hopefully this will help someone else in the future.
fyi for any newbies looking for info about this...you just find whatever flange fits your bov/bpv and then weld it to the fmic piping.
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Old 12-01-2013, 05:52 PM   #646
dyenation
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Thank you for this information. Helpful with deciding which type of BOV I should get for my ride.
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Old 12-08-2013, 03:01 PM   #647
cwalk
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Good stuff here!
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Old 12-09-2013, 06:54 PM   #648
StamfordBRZguy90
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Good write up!
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Old 12-11-2013, 05:23 PM   #649
CarlosAWDREX
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2011 Impreza WRX
Dark metallic grey

Default I'm a rookie and new to this car

So I want to get a bov and the one that's sounds like the one I want to get is the vta because I want to hear the sound of the air escaping when I shift, but would it harm the engine eventually? And I'm sure if I mod it this way then it would void my warranty right?
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Old 01-07-2014, 07:44 PM   #650
ms_fozzy
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good thread
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