Turbosmart Subaru Vee Port BOV fitting tutorial

[Wuss18]

wat size blanking plug is used..??

[aznbutt3rz]

i have problems putting the bov on the recirculate tube

[arabwarrior1]

hey, ive got a 05 wrp10 and its got a hks blow off valve with a front mount intercooler, i want to put a stock blow off, would i be able to put it on the front mount intercooler or do i have to put an adapter or modify it? thanx

[specialk18701]

@visionit2007 correct that is why you tune a car to cope with it. There goes your answer to that. That is like saying a supercharger doesn't belong on a car it can as long as you make it compadible.

[kikomonsta13]

@visionit2007 just take off the stupid CAT converters.

[Russell042]

@axel91daniel If its made for the WRX, then yes, use the BOV, it will not damage your engine in any matters.

[senorguitar16]

it's just a BOV...why would it hurt your engine if ur already turbo'd? slap that sucka on there!

[Turbosmart66]

For vehicle with sensitive MAF sensors we recommend a Dual Port which uses its recirculating port under normal driving conditions and only opens the atmospheric port under high boost. This is not to say you can't install a full atmospheric BOV on a WRX, you just need to do it properly and tune it.

[vipergtr21]

you know a subaru will have problems with backfiring and running rich BECAUSE of the bov. and the standard bov is perfectly fine to be used in mid to high boost situations.

[Turbosmart66]

Obviously you need to tune it, but yes it will run with a factory ECU. If you're running mild boost and your engine is mostly stock, better option would be to go with the Turbosmart Subaru Dual Port. Because it uses staged porting it will run the bypass port first hence perform like a BPV under normal street driving. Under load however it will open both ports venting the excess air to the atmosphere as well as back into the intake.

[bomkc]

@Turbosmart66 i have a 05 sti with stock with only a cold air intake but i just put a turboxs bov on and everything is still fine,, could you explain to me how this could hurt the car

[unluckykid256932]

How does backfiring have anything to do with a blow off valve?

[rpyaset]

do you know what happens when engine runs pig rich?

[XSO81]

@unlucky; on cars that are running an air flow meter, they will backfire with an atmospherically venting bypass valve because the car runs rich while venting. The AFM measures the amount of air coming into the engine, when you take your foot off the accelerator, that air goes out through the bypass valve to the atmosphere and is no longer in the system. The ECU thinks the air is still in the system and adds enough fuel for that amount of air, this fuel goes into the exhaust where it explodes.

[specialk18701]

@unluckykid256932 causes car to run rich. If not tuned right the mass air flow sensor get's wrong air flow reading and in turn dumps more gas into the car. I mean it is not a terrible thing actually it is a good thing if your gonna be turning up the boost on stock application. Cause gas acts as a cooling agent and will keep the bottom end cooler with the more gas to compensate for the increase in heat. Don't listen to that first kid he is just mad he doesn't have one.

[DemBeatzMan]

i thought this was going to be much harder to instal but this just shows its ridiculously simple! thanks for the vid

[EddieIrvine106]

useful video.  Thanks

[serkenshin]

is that legal in california ?

[samelod]

everything is legal in california but just dont street race lol

[george5751]

whats legal in california?

[pepe1990xx]

hey, i've got an impreza sti 2009, and i've got it all stock, can I put a BOV instead of using the stock one?, I been reading many things on forums people saying that is bad for your engine and stuff..

[Turbosmart66]

We have a model-specific Dual Port, valve for 2009 STi, which offers both atmo and recirculating functions. It's idea replacement of the factory unit and will play nicely with the engine and all the sensors.

[DaddyTyce]

The 2009 STi comes with a BPV. You would need a tune if you switched to a BOV to prevent things from going bad.

[Hardstyle2009]

what the blow off valve does it release pressure from your engine and turbo = a very very good thing. they do NOT damage your car in any way they increase performance and you can only have them if you have a turbo because they connect to the turbo. hope i helped

[5133per]

they cause damage to your vehicle if you install an aftermarket BOV without retuning you're vehicle. its that black and white.

[Leducq11]

its a wrx sti u idiot (scooby)

[TrboSTi]

WORD!!!

[v2scoobystiwagon]

its a sti in the vid not a wrx m8, just wondering whats better to fit a dump valve or a BOV

[wayne1992smith]

Can i fit one on a non turbo car?

[Turbosmart66]

Sorry, BOVs are designed to work on turbo systems. There's no point whatsoever having one on an NA car.

[sullengirl99]

you should be bitch slapped for even asking that question.

[hartybegan]

hey ive got an rb20det i only wana run about 10psi is a type 1 bov sufficient?

[Turbosmart66]

We would recommend Type 2 or Type 3 if you've got custom setup. If you've got a factory setup we recommend a Nissan Dual Port. It's a bolt-on replacement, easy to install and easy to setup too.

[CoolBigWillieStyles]

High boost or normal boost, BOVs aren't necessary. Watch any serious pro car and listen for a BOV.

[paulbreor]

ive seen plenty of motor that have high proformance turbo[s]

and without a BOV

and they caused damages.

plus a bov cant hurt hp or proformance that bad if you think about it,

[blomblom123]

your right, it cant hurt your performance but with a stock or mildly modified sti a bov can actually hurt you. It will take your perfectly running sti to an sti that is now running rich, and it will leak too much gas into the cylinders, and obviously over time that will be bad. The guy below is right, they do have them, they just have quiet ones that you deff wont hear over the loud ass cars lol

[Turbosmart66]

If you're running a stock turbo with a factory boost, there's no point changing the factory bypass valve. However, once you start upping the boost, the factory bypass valve (a plastic, sealed unit) can start leaking, and in some cases it can actually burst, as it was designed (with budget in mind) to hold only the factory boost.

This is when you should go with an aftermarket bypass or a dual-port unit, as these things are made out of aluminium, have a much greater boost holding capability.

[imcnblu]

if you knew what a Blow Off Valve was used for, then you would realize how wrong you are.

They protect the turbo from compressor surge. The main reason you don't really hear the BOV on the Pro-Cars (the noise is there, just not as prominent) is because they don't have to be loud to useful. You can put some BOV's on a soft setting, which somewhat quiets down the noise.

Only ricers want "uber loud" blow off valves.

for the record, compressor surge = ruined ball bearing, aka useless turbo

[CoolBigWillieStyles]

well i have two twin turbo cars, so im not a stranger to turbos.

I know this topic is often debated in forums. But in my opinion they are only installed on stock from factory to stop people getting freaked out at the noise of wastegate flutter.

Heaps of race cars dont have them installed.

But we could discuss this forever, half the world says you need one, the other half says you dont.

[paulbreor]

I never said you didnt need one

read my comment

and thanks for wasting all that typing of what i and everybody already knew.....

[imcnblu]

wasn't talking to you ;)

[paulbreor]

If you wernt talking to me then why did you reply to my comment....

[Salibs]

hey

thanks for everyones input

but i'm gettin two sides of da story here

alot of da sites i've read so far are saying blow off valves are not necessary and does damage to the engine over time and its not neccessary unless making high boosts

[Turbosmart66]

Part of is true - if you want to keep your car stock and not increase the boost, the factory BOV will do the job - that's what they've been designed for. They will not, however, handle increased boost pressure, so if you're thinking of going 4 psi or more above the factory level I'd definately invest in an aftermarket BOV.

THe statement that BOV cause damage is ridiculous - as most turbo cars will come with some sort of BOV be it atmo or recirculating straight from the factory.

[Salibs]

just found this randomly...it just sorta opposes to that you said:

Subarus use a MAF (mass air flow sensor) to meter air. If you run an atmospheric blow-off valve, your ECU will freak out when air goes missing. It compensates by running super rich every time you let off the throttle. running pig-rich isnt good for your motor in the long term and a BOV would hurt performance.

how true is this?

[Turbosmart66]

The only issue associated with vent to atmosphere BOV's on a MAF sensor car is overfueling which leads to back firing on certain back offs and gear changes. It is not harmful to the engine. The only reason why it's an issue is because some people don't like the sound of back firing. If you don't mind the backfiring, then there is no problem with running a vent to atmosphere BOV on a MAF sensored car. Turbosmart offers a "Plumback" version of this BOV, as well as a Hybrid version

[beeeeeeemo]

Not very true. Yes it will run rich, but with more gas comes thicker exhaust smoke making your turbo spool much faster. Your engine can easily handle to little extra gas, but over time your turbo cant handle the constant compressor surge ( when the turbo spins backwards while letting off throttle or changing gears ). Really depends on how hard you beat on your car too whether a BOV is right for you.

[qendrimmorina]

you know what your the only 1 im going to thank, becuz you made it so clearr, n the video recording was awsome thanks alot man.!!!! the resttt is terrible.

[prizzom]

So the nipple on the BOV connects to a vacuum line?

[Turbosmart66]

Yes, as it does on most BOVs.

[YASF1R]

i purchased the same blow off valve only i got a turboxs adaptor i installed it yesterday, the vacume line is connected and i blocked the return line and turned it to the soft direction but as i give it some juice it maked a ticking noise not that shhhhhh noise whould you kno wwhat the problem is?

[Salibs]

well on most forums people always say it does damage to engine over time, how true is this?

plus since its vented off into the atmosphere the air is not plummed back into the turbo, wouldnt there be a lost in power? and if there is how much?

[Turbosmart66]

salibs - a BOV vents the EXCESS air, preventing it from coming back towards the turbo and causing caviatation.

THe more air it vents the quicker the spool time ie less lag.

A correctly setup BOV will actually prolong the life of your turbo.

If your car has a sensitive MAF, go for the Dual Port instead of Vee Port, it's a hybrid that vents both into the atmosphere and back into the intake.

[Salibs]

hey

i juz wanna ask...does the richness when the air is vented out in da atmosphere really matter that much? cos yeh i do know its bad but HOW bad are we talking bout here?

how much of a diff does it make in terms of da damage it will do?

[Turbosmart66]

The only issue associated with vent to atmosphere BOV's on a MAF sensor car is overfueling which leads to back firing on certain back offs and gear changes. It is not harmful to the engine. The only reason why it's an issue is because some people don't like the sound of back firing. If you don't mind the backfiring, then there is no problem with running a vent to atmosphere BOV on a MAF sensored car.

[racer46]

But arent you gonna waste alot of gas

[jfbonin]

Hey! the maf is close to the air filter, what do you think's gonna appen if you exhaust to the atmosphere when this amount of air is already calculated by the maf?????

answer for dummies:(too much fuel!!!!)

[kfcpork]

dude 2000 wrx is a gc8 impreza and it has no turbo enless your not from america and you do have a 2000 wrx id keep the stock bypass valve cause a bov like that will run rich cause your venting to atmosphere and not recirculating the air back into the system.

[Turbosmart66]

The Turbosmart WRX BOV range is available in both vent-to-atmosphere and recirculating models. The model shown here is the atmospheric one.

The 2000 WRX in most countries had the EJ20 turbocharged motor.

[CHARrrrrrrrr]

an atmospheric BOV only runs rich coz the ECU doesnt know the BOV is venting air, therefore its putting fuel in un-necessarily some cases under high boost can cause higher fuel economy, flames etc, but nothing really. also depends on the MAF

[Nigelmalibu]

doubt it

[oxygemz]

can i put BOV, I don't have a turbo?

[branbai]

wow...im not professional but even i know the answer to that...FAIL.

[RAWfart]

LOL dont be mean X_x the guy is new to this stuff .

[CHARrrrrrrrr]

hahahahaahahahaha

[Nigelmalibu]

i just got a standard 2000 WRX the version before the bug eye lights, i dont think mine has a BOV, if it does its seriously quiet, thinking about waste gating it and or BOV but i dunno how much boost its running and so what psi spring i should get or whatever. i also find that on boost shifts that it can be delayed when it spools back up and i hit boost nicely again, dunno what the go is there but yeah, lil advice???

[Turbosmart66]

A standard WRX has a factory bypass BOV, so yes you can replace it with a Turbosmart WRX Dual Portl this will be especially useful if you're planning to increase your boost level. A Dual Port will be considerably louder than the factory one, so if the noise is what you're after - you needn't worry.

[Nigelmalibu]

are all BOV's universal, like when i was watching the vid i thought hrrm if i was to get a HKS ssqv bov it might not fit onto the thingy, the holes or whatever looked different

[Turbosmart66]

No, not all BOVs are universal. Generally if you have an aftermarket piping and intercooler you'd go with the "universal" BOV, because you'll have to do some welding anyway. If you have a stock intercooler, and don't really fancy doing any welding or fabrication work you'll need to go with a "model-specific" BOV, like the one featured here, as it simply bolts onto the existing mount.

[Rastrillero4]

so i know dunb question but what is the BOV for? somebody plz answer thank you

[Turbosmart66]

A BOV's primary function is to release excess boost pressure from the intake system when the throttle is closed. A perfect example of this is during on boost gear changes. The secondary function of a BOV is to reduce the "turbo lag" effect. Without a BOV, the compressor surge slows the turbine down, which then takes longer to spool up again when the throttle is opened. With a BOV, the excess boost pressure is released, keeping the turbine spinning and thus reducing the turbo lag effect.

[branbai]

in ordinary man terms it increases throttle response

[Deltree83]

I just bought one of your products, Turbosmart Megasonic BOV and adapter to Nissan Skyline R33 BCR33, Haven't got this product as yet and car is still coming from Japan On may, I can post Good quality video response when I get stuff.

[Turbosmart66]

Good to hear:) Would love to see it when it's all put together!

[Bugeyemafia]

Ok dumb question... i hear two sides to the BOV story, sti has one and dont get a BOV!

now so many ppl have one and there sti works fine so what do i need to do to add a bolt on BOV with out running my sti to rich or damage it, or lose HP ? does anyone have sudggestions? ty ty ty :)

[Turbosmart66]

Get a recirculating or a dual-port type valve. The one in the video is atmo, more suited to racing. Either Plumg-Back or Dual-Port will do the job and you won't have any problems.

[danleary123]

fuck the sound .

"and we have the stadarnd bov valve . as you can see it has it recirc tube to put the air back in . obviously car company are stupid and do this for no reason so lets make it better by putting this one and blocking the recirc pipe and give false reading to ecu . and you will find this is common pratice in motorsport ". ow well its choice really

[TurbosmartTV]

WTF are you on about??? There are three types of BOVs available for the WRX, fully atmo, fully recirc, and hybrid (dual port). This one is a fully atmo model, so obviously it's designed for those with higher-powered street/track cars. If the car is a mild tune, street-use only, obviously you'd choose the recirculating or hybrid model.

[pimpinkarlo]

why do some people spell vtec with an h at the end

[Turbosmart66]

You still get the benefits of a BOV on an automatic car. The BOV will still vent during gear changes, preventing the turbo cavitation.

[TheMax187]

Question: I have a 2002 Acura Rsx 2.0 Vtech, could I possibly have the blow off valve installed in it...its tiptronic

[PalermCorey90]

is it turbo

[branbai]

is it pointless and stupid to put a BOV on an AUTOMATIC 02 wrx? dont give me ur opinions just if it can be beneficial in performance way on an automatic or not please

[MrEmCom]

haha yea right.

[Turbosmart66]

The only performance improvement you will see with any BOV is a quicker spooling time. You will notice this on both auto and manual cars because it has nothing to do with the transmission type. The same applies to the preventitive function of a BOV, it will prolong the life of your turbo regardless of the transmission.

[my83merc]

no recirculation in a MAF car? asking for trouble.

[pinguinokde]

yes but the sound?

[blackphosphor]

thanks man. didn't know it was that easy.

[lucas13dourado]

question: no CEL?????

I own a passat 99 with a turbosmart bov, (dualport) shouldnt the one for the WRX/STI be the same? with 2 flanges???

thanks

[bigjonnyjon]

can be tuned? it should be tuned to check for any pressure loss. There are too many scooby's with home DIY bodge tuning jobs around