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Old 07-05-2011, 02:13 PM   #326
RCMS
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Thanks for the huge info in this topic! I'm completetly blown away with it! It helped me A LOT!
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Old 07-10-2011, 09:21 AM   #327
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This is a really good post and I think more people on here should read it. There are too many sheep on here that thing a BOV will hurt your engine.
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Old 07-10-2011, 10:34 AM   #328
i_c_the_light
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Quote:
Originally Posted by michael_cano View Post
why don't people ever talk about recirculating their vta bov's? it takes away from the "clunky" feeling that you're going to stall. all this hate for bov's, recirc them, and you're car runs fine.
Because a properly adjusted and working VTA won't give you that feeling.
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Old 07-13-2011, 11:52 AM   #329
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What's the opinion on the turboxs hybrid? I keep hearing the turboxs RFL makes them run like **** at idle and the hybrid works the same while driving but fixes the idle issues
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Old 07-14-2011, 08:57 AM   #330
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Quote:
Originally Posted by Soobahrue View Post
Someone told me turbosmart dual port was good. But I don't know! Someone else confirm and some other good brands too please!
I personally didnt like the Turbosmart. Upon every shift it would sound like a shotgun blast, when the afterlight would occur. Was annoying as hell. I was running it 50/50 and no matter how I would adjust it, it always had a rediculous afterlight.

Just my .02

I will sell you my Dual Port if youd like. CHEAP.
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Old 07-14-2011, 04:11 PM   #331
itzroger13
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I have an RFL and I have NO problems. It idles perfectly and I like how it sounds.
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Old 07-20-2011, 10:31 PM   #332
Frederico514
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Nice write up Dave..,supr helpful info.
I personally have a drop in filter n deleted the airbox snorkus, decent sound(not too obnox...)and i dont have to worry about my stock BPV leakn!
But like u said, it all dependa on wut u want?!
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Old 07-26-2011, 12:40 PM   #333
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With all the BOV's out on the market today, here is what I have learned. Diaphragm BOV's usually tend to leak over time or actually do not close all the way. Piston type BOV usually work a lot better. As far as which one is the best for venting to atmosphere without causing problems (taken into consideration you have chosen the CORRECT spring and did the correct adjustments to the BOV) it would hands down TIAL, APS and last but not least the HKS Racing Valve. Others just leaks like crazy over time.
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Old 07-26-2011, 01:37 PM   #334
wrx904
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Quote:
Originally Posted by cam07 View Post
What's the opinion on the turboxs hybrid? I keep hearing the turboxs RFL makes them run like **** at idle and the hybrid works the same while driving but fixes the idle issues
I have never heard of a bov effecting idle. And how could it? It would be closed at idle.
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Old 07-26-2011, 06:34 PM   #335
johnathanb24
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is it worth it on a completely stock setup?
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Old 07-26-2011, 08:33 PM   #336
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Thanks for the info Dave.
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Old 07-27-2011, 08:56 AM   #337
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Quote:
Originally Posted by wrx904 View Post
I have never heard of a bov effecting idle. And how could it? It would be closed at idle.
Well what do you think happens when it's not completely closed or sealed? It's called a vacuum leak and it happens all the time with a crappy or defective valve.
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Old 07-28-2011, 09:36 PM   #338
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Quote:
Originally Posted by johnathanb24 View Post
is it worth it on a completely stock setup?
No it is not worth it on a stock car unless you are running a huge turbo or just enjoy the sound of one. A lot of bov leak like crazy at idle because of things such as a weak diaphragm and such. Of all the bov's I've seen, Tial has still been the only one to work perfectly when using the CORRECT spring to make the idle vacuum.
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Old 07-29-2011, 05:20 PM   #339
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So...unless you get a bigger turbo or like upgrade, a BOV on a stock STi is just going to give more sound? agreed?

absolutely no more power or benefit UNLESS you got a bigger turbo?
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Old 07-29-2011, 05:35 PM   #340
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it's not the size of the turbo, but the psi at which your specific turbo is running

Moreover, you are not going to gain ANY power from a bov, none what so ever.
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Old 07-31-2011, 05:26 PM   #341
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I got a brand new TurboXS hybrid for sale
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Old 08-03-2011, 12:25 PM   #342
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Great article, cleared a lot of things up.
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Old 08-05-2011, 05:38 AM   #343
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Took my recirculating tube for my stock BOV off and found that the stock one leaks a ton. Like you could feel the air on you hand the the car idled at 300rpm
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Old 08-05-2011, 12:48 PM   #344
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Not good.

This is the one thing that a pressure test wont find. The reason is the pressure pushes the BOV closed. The only way to test the BOV from leaking under vac, is to test like you did.

C
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Old 08-18-2011, 08:40 AM   #345
05 scooby roo
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ok so being I am new to subaru's and this is my first turbo car, after you install a GFB 50/50 hybrid bpv, do you have to re-tune your whole system or can you leave it alone? I bought the car with a catless uppipe and the rest is stock.
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Old 08-21-2011, 07:45 PM   #346
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i currently have on old school hks ssq valve and im worried its not venting fast enough, i have two meth nozzles installed in my charge pipe, and while i was getting it tuned my tuner said the methline would pop off under boost, he wasnt sure if it was due to bad meth line push clamps or the bov not venting fast enough. this topic wasnt really covered. my concern is that it was working before, since then i installed a 20g, used to have a 18g. and eversince this problem has been occuring. is there anything besides a bad valve that could cause this. id hate to fork over the cash for another valve and still have the same problem. if i do buy another valve i have a turbo xs type h valve in line to be purchased. i just want to be sure this is the right move.
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Old 08-28-2011, 01:38 AM   #347
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I would like to setup a Re-circulatory valve.

noob question, but what does it mean to "Run Rich"? sorry, just wondering.
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Old 09-01-2011, 10:00 PM   #348
05aru
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Good info to know.I don't want to be challenged at every light and I'm running stock turbo so no performance gain means I don't need it.
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Old 09-01-2011, 10:03 PM   #349
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Quote:
Originally Posted by TheZulu View Post
I would like to setup a Re-circulatory valve.

noob question, but what does it mean to "Run Rich"? sorry, just wondering.
Running rich means you're burning too much fuel in the fuel/air mix
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Old 09-01-2011, 10:29 PM   #350
Abadu16
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Default Making Bov go off sooner.

Hey guys, I was wondering if any of you knew how I could make my BOV go off sooner I'm pretty new to this stuff but I'm sure there is some way I could get it to go off at less than 5 grand.This might have already been answered but I haven't seen it and I got tired of looking.

-Thanks
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