What is the best BOV?

I know there's all sorts of opinions when it comes to anything performance based, but I'm looking for something that:
A) wont harm the engine
B) is somewhat vented to atmosphere (I know it's a newb thing but I love the sound)
C) won't break the bank (around 200)

I've been looking at the turbo xs that can be vented 50/50, but I've got pretty limited knowledge when it comes to turbo cars.

 

HKS is the best sounding one. It can be had for pretty cheap.

 

I hear subaru makes the best ones.

 

Exactly....

It will attract mother birds into your giant hood scoop while you are driving.

 

Unless you are rotated, or pusing MASSIVE boost. Stock is the best, and what do you know? You already own one, hows that for positive thinking?

 

If you want noise, remove the intake silencer in the fender.

 

Or get an inlet and intake for a little more turbo noise... or Up pipe and EWG. There are ways to get the noise that you want without making your car run like crap! You can run 50/50, it isn't the end of the world. It also isn't the best option.

 

Like fuji says, get a HKS. Its from hong kong! Lols i have mine recirculating

 

May you can tell him how much you liked 100% and 50/50 vs your current setup.

 

I have a GFB adjustable currently set to full recirc.

You can still hear the noise even at full recirc. Even louder when full atmosphere. I've noticed at full atmosphere, the car bogs every once in awhile.

My brother in law says that my bov sounds like transformers.

 

Lets say, she's more happy with the bov recirculating rather than 50/50 or 100% venting.

 

Have you noticed a noticeable difference compared to stock? I've heard turbo response is supposed to be better?

 

I've also heard you can't get women pregnant if you pull out.

 

Or if she is on top, its gravity.

 

This is why I stick to anal. There's no risk of baby-making or trasmission of VD at all.

 

if you open up the intake flow (ie. short ram or CAI) you will hear the stock one from inside and outside the car. I run the perrin CAI and my buddy who owns an evo said "wow, never heard a stock BPV/ BOV that loud." I'm a noob, but all of my research points to the stock one being a pretty well made piece and can hold up to ~18 psi. Also as you allude to, for mostly stock setup you are better running 100%BPV/ recirc- remember that is air that has already been metered! I think a MAP setup may change all of the above though.

 

^^ agreed ^^

 

I'm just speaking for this guy. couldn't you buy a BOV and get a tune to remove this slight rich condition? if its 100% or even 50/50.

 

To some extent, but it will never run to its full potential.

(My elementary understanding)

 

I have a Perrin CAI as well and (this may hold true to all CAI) it amplifies the stock BOV "sound" and turbo spool quite a bit. Why not just invest in a mod that is beneficial and you're getting the sound to boot?

 

could anyone confirm this? nuke maybe or anyone that tunes? i had one in my talon but it was recirculated back and i got one for my soob but havent put it on cause of the problems it can cause with out a tune. might be time to sell it

 

Perrin Atmospheric +++++

 

NASIOC BOV FAQ

 

As most people have already said, stock is the best for the car. But if you absolutely must have the sound I suggest Forge, that's the brand that was on my STI when I got it and maybe I'm lucky but it does run really good with it on my car, and it definitely makes a lotta noise. A loud pshhhh sound, not a high pitched chirp.

 

Well stock isn't ideal for the 08+ WRX or STI. They have plastic BPV that like to fail around 18+ PSI. I would suggest Forge as an upgrade.

 

I have the TurboSmart 50mm RacePort BOV.

 

I like my tial

 

Go all the way, and never look back, or you die a hero? Live longer than....a villian? Or something....







But seriously... Way back when I first got my 02 wrx, I was talked into getting an aftermarket chirpy BOV. Having just started with the car and surrounded by Subaru driving friends, I tried it for awhile. I saw no increase in turbo response, the sound got annoying, and I was left with an overly rich condition inbetween shifts that made the car ride rough (my experience). I removed it after a couple weeks of trying it, and all went right with the world. Will any of them destroy your car? Probably not, but they most likely won't help either unless you have a custom set up that requires it.

I currently have a turbosmart kompact 100% recirculating valve on my 2009 wrx. The valve is louder than the stock one, and louder still with the cobb sf intake. I had heard of the possible failure of the stock valve running stage 2 boost. It was more of a piece of mind purchase than a necessity. If you want to whoosh, get an after market intake. It is noticeable without being obnoxious, and actually has hp benefits to your car if tuned.

Your car, your choice. A better question would be, which one is loudest, which one is prettiest, etc. It is still subjective, but may be more helpful than which one is best, considering the amount of debate around the effects of releasing MAF measured air out of the system.

And, as someone else pointed out, this discussion is older than dust. A wealth of information can be found here.

/2cents