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View Poll Results: stock bov, aftermarket recirc. bov, or aftermarket atmos. bov
Stock BOV w/ snorkus 57 42.54%
Stock BOV w/o snorkus 39 29.10%
Aftermarket recirc. BOV w/ snorkus 4 2.99%
Aftermarket recirc. BOV w/o snorkus 10 7.46%
Aftermarket atmos. BOV w/ snorkus 4 2.99%
Aftermarket atmos. BOV w/o snorkus 20 14.93%
Voters: 134. You may not vote on this poll

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Old 10-19-2004, 06:58 PM   #1
NM02WRX
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Default POLL: how many use the stock bov, aftermarket recirc. bov, or full atmospheric bov

how many of you guys use one of these..

stock bov

aftermarket recirc bov

aftermarket atmos bov


just wonderin cuz i have a 91 teg, non turbo'd, and i almost at my goal of a wrx, either normal or sti.

but i've been dying to have the BOV sound so im about this close ( || ) to gettin an aftermarket bov. and i wanna do the snorkus mod but now people are saying there car's have been runnin kinda crapy cuz of it so idk now..

im not tryin to go rice, im just tryin to get my dose of BOV then i'll probably change it back.

but what have you guys done and brands you've used
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Old 10-19-2004, 06:59 PM   #2
Nytmare
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Turbo XS RFL blow off valve. 5 washers, otherwise stock STi.

No problems whatsoever.
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Old 10-19-2004, 07:26 PM   #3
NM02WRX
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wow, no problems? how long have you been running like that?

why do lots of people say, full atmospheric is bad for the car and makes you lean out at the end, and the snorkus isnt a good mod to do anymore?

and on a scale from 1-10, 10 being loudest, how loud is your RFL?
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Old 10-19-2004, 07:31 PM   #4
john_matrix
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Old 10-19-2004, 07:39 PM   #5
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I am running 300hp in my 04 wrx with the stock recirculation valve. If you just have to spend $200+ to hear a bov, then by all means buy one. You won't get any performance gain for your money, just the sound. I really wanted one when I first got my car, but decided to spend the money on parts that made me faster.
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Old 10-19-2004, 07:45 PM   #6
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Quote:
Originally Posted by NM02WRX
wow, no problems? how long have you been running like that?

why do lots of people say, full atmospheric is bad for the car and makes you lean out at the end, and the snorkus isnt a good mod to do anymore?

and on a scale from 1-10, 10 being loudest, how loud is your RFL?
I had it on my 04 WRX for about 1500 miles, no problems on that. Around 3000 miles with the STi. I had problems with it on the STi when I first put it on because I had no washers in it. It kept leaking and would stall sometimes. I put 5 washers in last week though, and no issues anymore.

Alot of people come on here and just say not to get an atmospheric bov. They also think any exterior modification is "rice"

I personally love the sound...as far as loudness goes, I'll give it a 9, simply because more boost will make it louder, so it can still get louder than it is now...even though I've scared the pants off of my fair share of joggers.

Everyone wants to do different things with their cars. People on here tend to force their opinions on you. If they wouldn't do it to their car, it's automatically wrong. I do my own research and decide what I want to do based on each product's merits, and my goals and priorities. If you want to be happy with your own car, I suggest you do the same.

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Old 10-19-2004, 08:21 PM   #7
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modified my stock one, perrin short ram
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Old 10-19-2004, 08:37 PM   #8
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from what ive read here and other places, 100% atmosphere makes your exhaust rich, which can cause your uppipe to be put thru more stress than needed, and can ultimately lead to your turbo eating the material inside of your uppipe catalytic converter. the post is on this forum somewhere, just do a search for it.
nytmare- just because people on this forum tell someone to this that or the other doesnt mean you have to listen to their advice, some people have done things the hard way before and are trying to help people avoid spending money, time, effort, etc into doing something that will ultimately cost them more time, etc than its worth. you make an assumption that people on this board think that if you do anything to your car its called 'rice' which isnt true. there are some pretty stupid things people do to their cars... and its not just the car fanatics who look at these poorly modified cars and think 'that thing looks like ****'... most people do. there are alot of members who have body kits on their cars, and they look amazing! these people have put hours into their cars, making them look just right, and they look respectable. there is a large difference between 'rice' and modified.
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Old 10-19-2004, 08:43 PM   #9
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I'm an odd duck. One of my first mods was to remove the snorkle and I hacksawed it off. A few months back, I got a good snorkle from a friend and reinstalled it. The noise got too annoying. I must be getting old to re-snorkus my desnorkled car.
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Old 10-19-2004, 10:45 PM   #10
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I'm running with an APS BOV designed for my FMIC. It recirculates under low pressure and vents to atmposphere on high pressure. No problems whatsoever. I also have used an HKS SSQV and an Greddy Type-S. They would both be fine with a TMIC, but with my FMIC, they both cause compressor surge.

Calvin
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Old 10-19-2004, 10:50 PM   #11
Matrix 1193
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Quote:
Originally Posted by joey1313
I am running 300hp in my 04 wrx with the stock recirculation valve. If you just have to spend $200+ to hear a bov, then by all means buy one. You won't get any performance gain for your money, just the sound. I really wanted one when I first got my car, but decided to spend the money on parts that made me faster.

he isn't asking whether it makes power, I am getting ready to get a BOV, the only thing thats stopped me is that I needed more power out of my 02 wrx before i go for somethin thats suppose to draw attention to what you got...
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Old 10-19-2004, 10:52 PM   #12
WV_guy
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stockusbovusdesnorkus.
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Old 10-19-2004, 11:25 PM   #13
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I'm running a GFB Hybrid 50/50 BOV with the resonatorectomy. This is my first turbo car, so I just had to hear the BOV and turbo spool. I'm thinking about putting my stock BOV back on the car, fear of running too rich.
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Old 10-20-2004, 02:01 AM   #14
NM02WRX
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Quote:
Originally Posted by raglan
from what ive read here and other places, 100% atmosphere makes your exhaust rich, which can cause your uppipe to be put thru more stress than needed, and can ultimately lead to your turbo eating the material inside of your uppipe catalytic converter. the post is on this forum somewhere, just do a search for it.
nytmare- just because people on this forum tell someone to this that or the other doesnt mean you have to listen to their advice, some people have done things the hard way before and are trying to help people avoid spending money, time, effort, etc into doing something that will ultimately cost them more time, etc than its worth. you make an assumption that people on this board think that if you do anything to your car its called 'rice' which isnt true. there are some pretty stupid things people do to their cars... and its not just the car fanatics who look at these poorly modified cars and think 'that thing looks like ****'... most people do. there are alot of members who have body kits on their cars, and they look amazing! these people have put hours into their cars, making them look just right, and they look respectable. there is a large difference between 'rice' and modified.

i heard about it leaning/riching out your exhaust but why tho? thats what i dont get. i mean i know an atomospheric bov just blow's it out in nowhere-land.. and a recirc just dumps it into your intake system. but how does that not happening, lean/rich out your car? i mean its just air, and the intake brings in alot of it.

i've read up on it all but still dont understand.

and what about what deejai35 said about the GFB Hybrid 50/50 BOV? is that better then a full atmospheric bov? cuz i could go for somethin like that, where it recirc's under lower boost condition's and does atmospheric oh high boost conditions.. what would my results be on that?
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Old 10-20-2004, 02:06 AM   #15
DumbUglyDragon
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My car came wit the HKS SSQV...after a few months...it got annoying as helll...switched back to stock...much happier!
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Old 10-20-2004, 02:07 AM   #16
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Stock BOV w/o snorkus
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Old 10-20-2004, 02:19 AM   #17
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The stock "bov" is actually called a bypass valve, not blow-off.

I just hate the BOVs that people get for their SRT-4s that are the same obnoxiously loud PSSSH no matter if they just expelled 1 PSI or 15 PSI of boost. I know that atmospheric BOVs are bad for cars with the air metering system placed before the turbo since they usually figure there is the air that is usually sent back around. But with cars that have the MAF placed after turbo it would be fine to run as atmospheric as you please since it only measures what will actually be coming in.
Does that make sense? BTW: Are the MAFs located before or after on Subarus?
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Old 10-20-2004, 02:25 AM   #18
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The atmospheric 'bov's" are, really, obnoxious....and un-necessary------and potentially damaging to your car.


.....so ya waanna spend a bunch of $$$ on a useless, annoying, possibly damaging kiddie toy for your car....??? I don't get it...???
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Old 10-20-2004, 09:54 AM   #19
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Stock Bov with Perrin short ram. Louder than stock but not obnoxious.

Jeff
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Old 10-20-2004, 10:15 AM   #20
NM02WRX
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Quote:
Originally Posted by Uncle Scotty
The atmospheric 'bov's" are, really, obnoxious....and un-necessary------and potentially damaging to your car.


.....so ya waanna spend a bunch of $$$ on a useless, annoying, possibly damaging kiddie toy for your car....??? I don't get it...???
its only between 150-300 bucks for one, thats not bad. then afterwards i can sell it to my boy in his supra.

ok.. how about this guys. if i get an aftermarket recirc bov? how much damage do those cost? and how much louder than stock is it w/ snorkus and w/o snorkus?
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Old 10-20-2004, 10:47 AM   #21
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Please don't use the term only in reference to $300. That is still a lot of money.

As per your BOV question, there are many FAQ's and other threads that explain why it can cause your car to run momentarily rich, but here's the best explanation I've got:

With the stock re-circ valve in place, when you let off the throttle, the air that the turbo most recently compressed passes back into the intake to be used again. The ECU in your car takes into account this recirculated air when it decides the amount of fuel to allot for the next combustion cycle.

When you install an atmospheric BOV, instead of being reused by the intake, this air is vented directly to the atmosphere (giving you the ever-popular 'whoosh' sound). However, the ECU still operates as if you had this extra recirculated air, and applies the proper amount of fuel for that additional air.

Since this air is not actually there (having been vented to the atmosphere), you wind up getting a mixture that is much too rich, which can damage your engine. 50/50 recirc/atmospheric valves have this problem too, just to a lesser extent.

Will you blow up your engine with a BOV? Probably not. Could it affect the longevity? Maybe. Will you buy one anyway? Probably. If you want the sound, by all means buy a BOV, just realize that it is not the way your engine was designed to work.

Hope that helps.

Whatever you decide. Good luck.
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Old 10-20-2004, 11:03 AM   #22
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I have the blitz dd bov and love it.....but Idleing is the last worry on my mind.
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Old 10-20-2004, 11:07 AM   #23
Subie Gal
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Quote:
Originally Posted by Uncle Scotty
The atmospheric 'bov's" are, really, obnoxious....and un-necessary------and potentially damaging to your car.


.....so ya waanna spend a bunch of $$$ on a useless, annoying, possibly damaging kiddie toy for your car....??? I don't get it...???
what he said

i run stock as well

Jamie
www.subiegal.com
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Old 10-20-2004, 11:19 AM   #24
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I used to use a GFB 50/50 recirc BOV, now with the over-sized TMIC it would no longer clear, so I've gone back to the stocker. Really don't miss it at all. I may consider upgrading to a STi BOV, though I've had no issues with holding boost with the stock WRX valve.

-Keith-
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Old 10-20-2004, 11:23 AM   #25
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RFL!!!!!!!!!! pachew!!!!!!!!!!!!!!!
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