"The BIG BOV thread" (Where all bov question threads get merged)

[BillFromTR]

Can we try a temporary swear filter on the letters BOV? It would be funny as hell and also lessen the amount of BOV, CAI, MBC on my stock WRX threads. They did that to the letter SRT4 on my other site IWSTi.com and it was pretty funny, so whaddaythink?

IBWAYTOMANYCAPITALIZEDACRONYMSINTHISTHREAD

[$lick Rick]

so............ what IS the best BOV on a stock wrx?

[Speedette]

Maybe it's just me, but I think it'd be funny.

[rr1911]

Maybe it's just me, but I think it'd be funny.

+ 1

[WRX13oy]

will a *** make my car run like ****. cas i have this friend that is going to sell me his ***

[Integra96]

I'm all for this idea. We could even make "bov" = "Turkish meatplow"

[LittleAP783]

I can get my hands on a perrin recirc, brand new for $145 shipped...sound like a good deal?

[PolarisSnT]

Im not a fan of Perrin parts. Not worth what you pay for IMO, but Im just going with my experience. APS products, although a little pricey, usually fit perfect and work flawlessly. Sure there are cases where APS products fail, but their fit and quality and second to none.

[Touge Daimao]

I was talking to the rep at the local tuner shop and he said that puting a BOV in (to replace the re-circulating valve) would cause the engine to run rich and may lead to quite a few problems down the line. I have a stock WRX and i am buying a cat back exhaust...i was also gonna get the BOV, but now I am not sure...anyone got any advice??

My next step is going to be a mild turbo upgrade (along with pump, injecters) and maybe a CAI. (if any of you have any pointers on this topice please comment)...basically, i want more HP, but do NOT want to fail emmissions. Not sure how much i can do really.

[dewrx02]

You will tend to run a little rich between shifts with a bov,but i don't see any harm in it. I have a hks ssqv on my car,i had it when i had a tmic now i'm running a fmic with it with a vf-34 with all supporting mods.I will say i have been dyno-tuned on my utec with it,but still i had it on my tmic not tuned with no problems. From what i understand the stock bpv can hold up to 20psi anyway, and a crushed one a little more.For what's it's worth all my buddy's that have wrx's have one with no apparent issues.

[808wrx]

i see most hks BOV's have that black knob to adjust with.for some reason mine dont have it.is there any other way to adjust it?my car runs fine so dont bash me on havin one haha..

[Speedette]

Until you're pushing big numbers, I would pass on the BOV and CAI for now.

Put your money towards better use: Catless uppipe + downpipe + exhaust + engine management.

Here are some tasty links for you to devour:
The "Good first mods" sticky
And here's great coverage of FAQs from NASIOC.

[D0WNxSH1FT]

BOV - no, there are NO positive effects besides sound. Even over 20psi it is better to have a recirculating valve. You will run rich w/ a BOV.

I run the stock valve w/ 19psi and I have a VF-34 Turbo

CAI - no, there are NO positive effects besides sound compared to the stocker (you pay for sound more than the few HP that you gain from the lean condition it creates). Also, most intakes for the WRX are harmful b/c of the bend that effects where the MAF is located and will give the ECU incorrect readings. The only time you need a Short Ram Intake for the WRX is w/ a Front Mount Intercooler b/c it wont fit any other way.

[Cuztom15]

i got an adjustment knob for ya, it involves two 12mm bolts and a recirculation hose.

Anywho, no, thats pretty much the only way. Why urs doesnt have it? no clue. But the stocker doesnt need to be adjusted.

Although its probably just a screw, ghetto rig it, your motor wont like you soon anyway.

[doublejz]

The best way to adjust it is to remove the 2 bolts that hold the BOV on then dispose of BOV.