Don't know if I'm putting this in the right forum. But has anyone installed a BOV or know the size of the flange is? Its the first thing I wanted to do to my Evo X. Thanks

I know a few people have put BOV's in. Ill have to look around and see if I can find the posts.

Here you go:
http://www.evoxforums.com/forums/showthread.php?t=2712&highlight=BOV

Looks like it's just a hose clamp for now, but it looks like I'll be going with a true flange when I do hardpipes.

Looks like it's just a hose clamp for now, but it looks like I'll be going with a true flange when I do hardpipes.

Ya same here. I can't hear the blow off so I wanted to change to a HKS or Blitz. Its one of the reasons I got a turbo car lol

I know a few people have put BOV's in. Ill have to look around and see if I can find the posts.

Here you go:
http://www.evoxforums.com/forums/showthread.php?t=2712&highlight=BOV

Thanks bro

what BOV did you get?

Do not vent to air. =)

Ya same here. I can't hear the blow off so I wanted to change to a HKS or Blitz. Its one of the reasons I got a turbo car lol

as soon as you get a cone filter you will hear the factory alright.. :bowlol::bowlol::bowlol:

be care ful with BOV, some are really flatters.:shades:

Also i know one red Agency power BOV for sale, looks brand new and cheap. MY german friend have it.....
He likes red. So now, some of you already know who is him...

I heard that the BOVs from the previous EVOs will work on the EvoX.

Do not vent to air. =)

not too familiar so maybe you can tell me. why not vent to air? what is the best setting?

It'll throw a check engine light.

not too familiar so maybe you can tell me. why not vent to air? what is the best setting?

The arguement I have read for this is.

The current diverter valve setup on the evo x is set for full recirculation instead of venting it to the atmosphere. What is claimed that setting up a blow-off valve/DV (terminology interchangable) on the evo x to 100% atmospheric venting will cause the engine to run even more rich in it's fuel consumption due to the loss of air in the system.

I can't confirm or deny this one way or the other because some guys say they're running fine with 100% atmospheric and others are still saying it's a bad idea.

i wonder does it make a difference weather or not you have the factory reflash or not, which would cause some not to have problems and others without, to have problems

I would seriously doubt it. The first reflash was designed to eliminate an idle problem caused by an improper memory of the key-position, even though some people say it helped their top-end but there are still lots of complaints about that.
Even this second flash to address this upper-rpm "stutter" and sluggishness shouldn't affect the operation of a bov because really it's only doing it's job when you're changing gears. (unless it leaks in which case you would be loosing boost pressure)

I believe I read on the other EVO site that the X can run full vent to Atmosphere because it has a MAP sensor.

I believe there are a few people running VTA, with no issues as of yet.

Vent to atmosphere if you like popping and back firing. I did on my STi and it sucked. The point is it's a waste of money unless your upgrading the turbo. My injen intake made the stock BOV loud as day. But if you get one, recirculate it.

To all of you who are hating on full atmospheric bov's with the evo x, if you block off the recirc hole, there's no way the bov venting to atmosphere will affect the maf readings since its at the opposite side of the system and not behind the maf.

well I'm running full VTA (HKS SSQV) and I get no popping or cracking or backfires and no Cels. I'm not saying it's the build for it or good for it, but just saying I'm doing it and I have had no issues with it yet.

Got done doing my $0.32 bov mod this morning, and have been driving it all morning with no idle issues or cels (not suprised). I rotated the bov with discharge towards hood for louder sound, and I plan on painting the block off black.

http://i83.photobucket.com/albums/j287/dj1explorer/0213091157.jpg

What did you use to block off the recirc hose? I was going to try this last week but I couldn't find anything to plug it up.

What did you use to block off the recirc hose? I was going to try this last week but I couldn't find anything to plug it up.

I used a 1" pvc slip on cap from Home Depot, it cost $0.32.

To all of you who are hating on full atmospheric bov's with the evo x, if you block off the recirc hole, there's no way the bov venting to atmosphere will affect the maf readings since its at the opposite side of the system and not behind the maf.

It's not the MAF reading it can effect...it's the disagreement between the amount of air that the MAF has read vs the amount of air that's actually in the motor.

It's not the MAF reading it can effect...it's the disagreement between the amount of air that the MAF has read vs the amount of air that's actually in the motor.

I've done a lot of researching and some talking to bosch about this, and I pretty much came to the same conclusion. One of the main reasons I'm not having a problem is because of the bosst being at a lower setting. Once I up the boost, it will create problems. I decided to forgo all this and go back to recirc while doing my tune.

well I'm running full VTA (HKS SSQV) and I get no popping or cracking or backfires and no Cels. I'm not saying it's the build for it or good for it, but just saying I'm doing it and I have had no issues with it yet.
Same:rock:

With the 8 and 9, there were issues when not recirculating; why would the X be different?
What psi would the hks dv hold?

With the 8 and 9, there were issues when not recirculating; why would the X be different?
What psi would the hks dv hold?

I think the X has a MAP sensor while the IX didn't. Not sure what the normal SSQV holds but the racing version holds up to 43.44psi.

why do some like 100% vent as opposed to recirc??

I think the X has a MAP sensor while the IX didn't. Not sure what the normal SSQV holds but the racing version holds up to 43.44psi.

I was under the impression that it had a map sensor as well. That's why when people would run the evoscan and flash software and control the boost with the oem ecu, they would swap to an upgraded gm bcs and upgraded evoX map sensor. Then, I thought they all talked like they should keep the dv recirculating.
If you were to get the hks dv (racing version) would you be ok with lower boost (24psi), or would there be any adverse conditions?

I think the X has a MAP sensor while the IX didn't. Not sure what the normal SSQV holds but the racing version holds up to 43.44psi.

They both have a MAP sensor. The IX has like a 1 bar sensor and the X has a 3.5 bar.

sorry to steer this in a dif direction, but quick question.

what is a really good sounding blow off if im lucking for that "fluttering" sound instead of just a big surge of compressed air being blown off all at once.
did that make sense?

I have the Turbosmart dual port BOV, but it doesn't flutter. It is one big rush of air...sounds nasty.

got a sound clip of it? I love the sound of the rush over the flutter

i like the rush over the fluttering too. sounds mean instead of a little giggle.

I sure don't...I am not very high tech. Just know that with the MR you don't really ever get the sound, because you don't ever need let off the throttle. You can play around and get the bov to work, but you will probably be able to watch the fuel level drop while you are playing around.

I have an MR and I hear it all the time lol. You may not need to get off the throttle while shifting, but you will need get off the throttle eventually...

The stock BOV is a plain old PSSSHHHHH or "woosh" sound. It will rattle if you're on boost at low rpms, IE excellerating in 5th gear at 1800 rpms to 2500 rpms gives a sound like "chchchch".

im resurrecting an old thread. the wife finally drove around with me in the evo for a long time and she wants to hear the bov because right now she can barely hear it.

I would rather hear the rush of air so what i good one to get?
can i use it with the ap?
how much richer will that make the car run?
will it make it run like garbage?

thanks.

im resurrecting an old thread. the wife finally drove around with me in the evo for a long time and she wants to hear the bov because right now she can barely hear it.

I would rather hear the rush of air so what i good one to get?
can i use it with the ap?
how much richer will that make the car run?
will it make it run like garbage?

thanks.

Get a different intake. She can't hear the k&n one? How can she not? I hear mine over my exhaust.

Get a different intake. She can't hear the k&n one? How can she not? I hear mine over my exhaust.

she can but not that loud. i figure a new bov will solve that problem.

she can but not that loud. i figure a new bov will solve that problem.

Get the ams sri. You will hear it more then. I don't know for sure, but how would a different bov recirculated the same as stock be louder?

Get the ams sri. You will hear it more then. I don't know for sure, but how would a different bov recirculated the same as stock be louder?

im talking about venting to the atmosphere. plus i dont want to get an intake yet because i dont want to run to lean. i feel like i am pushing it with the drop in filter.

im talking about venting to the atmosphere. plus i dont want to get an intake yet because i dont want to run to lean. i feel like i am pushing it with the drop in filter.

I thought vta would confuse your maf.

I thought vta would confuse your maf.

well reading thru this thread makes me think it wont. there are a lot of people that are doing it and not having a problem. reread the thread.:whipping:

I know that, but I've read in different places that it does. Try it out.

I know that, but I've read in different places that it does. Try it out.

well i get confused when i look because there are different things like springs and how much boost it can hold. im just using the ap so whatever cobb or perrins boost is set at is what i need.

well i get confused when i look because there are different things like springs and how much boost it can hold. im just using the ap so whatever cobb or perrins boost is set at is what i need.

Why don't you just block off the recirculation spot and have an easy diy vta? Then figure out if that's what you want or not.

Got done doing my $0.32 bov mod this morning, and have been driving it all morning with no idle issues or cels (not suprised). I rotated the bov with discharge towards hood for louder sound, and I plan on painting the block off black.

http://i83.photobucket.com/albums/j287/dj1explorer/0213091157.jpg

how loud is the sound? are you still running it like this?

^No, I switched back to stock a couple weeks ago. The only reason I really did it was to prove people wrong about their claims. I never once had a problem. It was a slight bit louder than recirc with a cone filter. I wouldn't recommend facing it upwards like I did; after I got caught in the rain once, water was pooled inside the valve because of the hood vent. Leaving it facing down or sideways would work fine. I painted that cap flat black and it looked good.

^No, I switched back to stock a couple weeks ago. The only reason I really did it was to prove people wrong about their claims. I never once had a problem. It was a slight bit louder than recirc with a cone filter. I wouldn't recommend facing it upwards like I did; after I got caught in the rain once, water was pooled inside the valve because of the hood vent. Leaving it facing down or sideways would work fine. I painted that cap flat black and it looked good.

do you think it would be as loud as an aftermarket one?

do you think it would be as loud as an aftermarket one?

Not at all. Aftermarket vta bov's are loud as crap. The stocker vta is the equivalent of stuffing a rag in the outlet of an aftermarket bov to muffle the sound. HKS recirc is even louder if you have cone filter mod or an intake.

http://www.amsperformance.com/cart/TiAL-Q-Blowoff-Valve-Amsperformance.com.html

will this work? its it a simple bolt on product?

- An aluminum or mild steel weld base mounting flange is furnished with each unit.
Unless you can find a bolt on flange it needs to be welded on.

Unless you can find a bolt on flange it needs to be welded on.

ugh. do you or anyone else know of a bolt on one? i wanna make this pretty simple. I dont wanna get a cheap on tho.

Somehow I already knew you were going to ask about the Tial Q. I don't know how loud it is but it is a very good bov. My neighbor is running one on his 94 tsi with 32psi and it's holding strong.

To make it work you would have to find someone to weld a piece of pipe onto the v-band mounting clamp the same outer diameter as the inner diameter of the bov hose from the licp.

I'm a big fan of HKS. My srt-4 had a hks race ssqv and it held 36psi with no problem. I ran it on my eclipses also.

ugh. do you or anyone else know of a bolt on one? i wanna make this pretty simple. I dont wanna get a cheap on tho.

It's not a big deal to get that done. A local shop with a welder would most likely charge $20 maybe less.

71004-AM015MITSUBISHI Lancer Evolution GSR 2008 ; Includes 2 Polished Aluminum Pipes$465.00
i think i will pass for 465 bucks. i will get the ams dp first. lol. the wife does not ride with me enough.

So what all was needed to make this one work?
http://www.youtube.com/watch?v=2KWnSHcR6yo

What lower ic piping will work with the hks bov.

There's a way around that price. $199 for universal ssqv bov. $30 for adaptor flange from a vendor on evom (I can't get the forum to load at work or I'd find it for you-crappy internet), $15 for recirc fitting if you ever wanted to go that direction.

There's a way around that price. $199 for universal ssqv bov. $30 for adaptor flange from a vendor on evom (I can't get the forum to load at work or I'd find it for you-crappy internet), $15 for recirc fitting if you ever wanted to go that direction.

see 245 is much better. thats the one that wimpers tho right? It sounded good there but im not a fan of the ones that wimper.

What if one wanted to run the dropin filter with stock box, upgraded turbo inlet hose, lower ic piping and the hks bov, what all brands would you have to run to make everything work out fine?

http://forums.evolutionm.net/evo-x-engine-turbo-drivetrain/410521-can-i-change-stock-bov-vta.html

after that thread i dont think i will be getting one. thanks for the help tho guys.

No problem.

i'm putting in an aem cold air intake on my evo x and i'm debating wether or not if i should put on an hks bov. i've hear good and bad about this on the evo x. i've from some that this isn't a problem, while others say that this would cause the engine to run rich. should i just install the bov after the mass airflow sensor or not get the bov at all? any help would be most appreciated, thanks...

-charles

i'm putting in an aem cold air intake on my evo x and i'm debating wether or not if i should put on an hks bov. i've hear good and bad about this on the evo x. i've from some that this isn't a problem, while others say that this would cause the engine to run rich. should i just install the bov after the mass airflow sensor or not get the bov at all? any help would be most appreciated, thanks...

-charles
Just dont get it, I just got mine removed. My car is not only running rich it goes to limp mode on 5th gear and will throw codes on you..I put my bypass valve back and everything was back to normal.. Stopping in the freeway @ 1Am to reset the car is not fun at all. If you want the HKS BOV recirculate it but its the same as the stock one so why even bother..

... so basically if i get the hks bov and recirculate it, it doesn't do anything. just sounds cool that's it? i mean it would be same as stock? thank you again for the previous reply and help. i just got my evo last week and i love it!

-charles

Nope, the HKS sounds like our stock valve when it's recirculated. If you want a unique sounding recirculated BOV you have a few choices. There's forge's BPV that sounds like this,
http://www.youtube.com/watch?v=K4p1fKCwFrc

The Greddy Type-S which sounds like this,
http://www.youtube.com/watch?v=ifECzWVd3eA

And the NGR Type-S which is just like the above Greddy, but claimed to have a stronger diaphragm
http://www.youtube.com/watch?v=qEPUlMJ17Pk

To my knowledge, every other BOV out there has a generic "PSSHHH" sound.

I have the Turbosmart dual port BOV, but it doesn't flutter. It is one big rush of air...sounds nasty.
http://www.youtube.com/watch?v=KtAsw4NbfVM&eurl=http%3A%2F%2Fvideo.google.com%2Fvideosearch%3Fhl%3Den%26safe%3Doff%26q%3Dtu rbosmart%2520dual%2520port%2520bov%2520evo%2520x%26um%3D1%26ei%3DY8I4SpOHGo6Ntge ehrXXDA%26res&feature=player_embedded

Here is how my Forge RS Sounds.

VIDEO

http://img.photobucket.com/albums/v335/Clipse3GT/NEW%20EVO/th_moviesbov004.jpg (http://smg.photobucket.com/albums/v335/Clipse3GT/NEW%20EVO/?action=view&current=moviesbov004.flv)

http://img.photobucket.com/albums/v335/Clipse3GT/NEW%20EVO/th_moviesbov003.jpg (http://smg.photobucket.com/albums/v335/Clipse3GT/NEW%20EVO/?action=view&current=moviesbov003.flv)

http://img.photobucket.com/albums/v335/Clipse3GT/NEW%20EVO/th_moviesbov002.jpg (http://smg.photobucket.com/albums/v335/Clipse3GT/NEW%20EVO/?action=view&current=moviesbov002.flv)

http://img.photobucket.com/albums/v335/Clipse3GT/NEW%20EVO/th_moviesbov001.jpg (http://smg.photobucket.com/albums/v335/Clipse3GT/NEW%20EVO/?action=view&current=moviesbov001.flv)

http://img.photobucket.com/albums/v335/Clipse3GT/NEW%20EVO/MISC022.jpg

My Blitzz BOV (with winter tyers :( )
http://www.youtube.com/watch?v=hh_h_hzrKo4

The Forge RS almost sounds like the Greddy type-s, I like that a lot!

hopefully i put this in the rite forum. Its been less then a year that i got my evo x mr n i wanna do something to improve the performance....i was thinkin of puttin a bov but i wanted to get some opinions first....i wanna start off small tho since i dont have much money to spend...wat do u guys suggest?

thanx vito

A BOV will not improve performance. IMO you should get a test pipe instead.

n wat wud the test pipe do?

A BOV will not improve performance. IMO you should get a test pipe instead.

A BOV will give you a woody...but then again so will a test pipe.:godance:

n wat wud the test pipe do?

As Arnold would say, "I will make ghew lowduh!". It will also boost your numbers a bit, some manufacturers post around 20whp/tq just for the test pipe.

Also, it makes your car illegal for the streets.

so basically all of your bov's won't cause your evo to run rich or shoot codes at you??? becuase i'm worried if i put one in, it would do that... or should i just recirculate the bov?

so basically all of your bov's won't cause your evo to run rich or shoot codes at you??? becuase i'm worried if i put one in, it would do that... or should i just recirculate the bov?

I have no codes running 50/50 with Agency Power BOV. I would not see a reason to go 100% VTA, it is loud as hell at 50%.

hmm how would an hks bov do? or a ngr type-s bov (recirculated) do? just opinions...

it will cause you to run rich, it may or may not cause a CEL, I ran VTA for 5 months not one problem. I'm going to 50/50 now, but only cause I wanted the AP BOV not cause of the VTA setup. A blow by system would fix that, and then it'd be 100% safe, but running rich isn't the end of the world, and I don't think it'd be enough to foul plugs even.

hmm how would an hks bov do? or a ngr type-s bov (recirculated) do? just opinions...

I ran the HKS, no problems and sounded great!

it will cause you to run rich, it may or may not cause a CEL, I ran VTA for 5 months not one problem. I'm going to 50/50 now, but only cause I wanted the AP BOV not cause of the VTA setup. A blow by system would fix that, and then it'd be 100% safe, but running rich isn't the end of the world, and I don't think it'd be enough to foul plugs even.

sorry i'm a little new to this but what does running it 50/50 mean? noob question i know. thanks.

I ran the HKS, no problems and sounded great!

how did you set up your hks bov?

50/50 means that it's a BOV that has 2 outlets, one for recirc and one for VTA so 50% recircs and 50% VTA.

I had my HKS 100% VTA

HI
Can anyone tell me why someone turn(rotate) stock BOV.What s the point of this?
STOCK ENGINE:
http://images.motortrend.com/roadtests/sedans/112_0801_04z+2008_mitsubishi_lancer_evolution_x_GSR+engine.jpg


ROTATE BOV:
http://image.turbomagazine.com/f/10291987/turp_0807_01_z+2008_mitsubishi_evolution_x+engine_bay.jpg

they put it on wrong.

they put it on wrong.

:priceless:

Especially from a renowned high performance magazine/media source...F'n sad.:omg:

HI
Can anyone tell me why someone turn(rotate) stock BOV.What s the point of this?
STOCK ENGINE:
http://images.motortrend.com/roadtests/sedans/112_0801_04z+2008_mitsubishi_lancer_evolution_x_GSR+engine.jpg


ROTATE BOV:
http://image.turbomagazine.com/f/10291987/turp_0807_01_z+2008_mitsubishi_evolution_x+engine_bay.jpg

Pull type to push type?

^Push type to pull type. Usually when people do it it's on accident.

I asked because I have tuned Evo X (400hp and 415Nm). Now I have installed Blitz Blow off and I get sometimes ASC cell and car loss power,then I turn off car,when I turn on car work normal.
My tuner told me that I need to install back stock BOV and also rotated like is on the second picture.

Bojan
__________________

BOV's don't open correctly when they're on that way, there's too much pressure in the intercooler pipe holding it shut. Tell your tuner he's a n00b, putting it on backwards will send most (if not all) of the air back through your turbo and out of the intake... Which you really want to avoid.

^Push type to pull type. Usually when people do it it's on accident.

Pull type is when the piston travel is in-line to the outlet, correct?

I heard the tial bov on a evo 9 this thing sounds insane!!! I need to get this on my car somehow....there has to be a way anyone know how to?

It's coming I'm almost done getting mine installed ;)

I asked because I have tuned Evo X (400hp and 415Nm). Now I have installed Blitz Blow off and I get sometimes ASC cell and car loss power,then I turn off car,when I turn on car work normal.
My tuner told me that I need to install back stock BOV and also rotated like is on the second picture.

Bojan
__________________

You car is throwing a limp mode because of the Blitz BOV.

You car is throwing a limp mode because of the Blitz BOV.

Just installed the Blitz Blow-off Valve VD. I'm going to recirculate it using the "Recirculation Flange" they have that costs $30. Am I still going to get limp mode? I drove it around a little today after the install (with VTA) and I didn't get any codes.

By the way I'm tuned with an FP Red making 375 whp, however I have not gotten a re-tune since installing the Blitz BOV.

bump for answer on above

If you were tuned using the stock BOV at elevated boost levels, it's a good bet that it started to leak. When you swap to a new valve that doesn't leak, the engine gets more air and more boost pressure than it's providing fuel for, which could lead to excessive knock. It's a good idea to go get retuned for the new valve.

so after 10 pages of notes...we should get a recirculatiing bov or a dual port bov(isnt dual port 50/50)? I know i am having boost leak in my evo x and I plan on getting a GT35R turbo so I am trying to pick out a good bov that will not give me codes or leak...any suggestions? I am running 27 psi on my evo x right now

I have the TiAL QR bov, works great and is pretty loud.

so after 10 pages of notes...we should get a recirculatiing bov or a dual port bov(isnt dual port 50/50)? I know i am having boost leak in my evo x and I plan on getting a GT35R turbo so I am trying to pick out a good bov that will not give me codes or leak...any suggestions? I am running 27 psi on my evo x right now

You can run VTA all you want. The reason people throw codes and experience bucking is compressor surge. You just need to pick the right valve, or be willing to change your driving habits to avoid part throttle compressor surge.

any good recommendations for a spirited daily driver that likes to hit the track once a year?

so after 10 pages of notes...we should get a recirculatiing bov or a dual port bov(isnt dual port 50/50)? I know i am having boost leak in my evo x and I plan on getting a GT35R turbo so I am trying to pick out a good bov that will not give me codes or leak...any suggestions? I am running 27 psi on my evo x right now

far as code if you tuned you not going to get codes, most of that is ppl vta with no tune or bad tune. running 27 PSI leaks going to happen on the stock bov, any aftermarket bov will be better for holding boost past 25-26 psi.

any good recommendations for a spirited daily driver that likes to hit the track once a year?

Im fan of the Dual port.
Lots of fans on here of the synapse dv
HKS if you want loud chirps and some JDM bling

what ever you go with just make sure you reune to provent issues.

any good recommendations for a spirited daily driver that likes to hit the track once a year?

For the best drivability, I love the NGR Type-S. I've had dozens of members PM me about this valve (after buying one as per my suggestion) and nobody has a bad word to say about it. Other good options would be a Greddy Type-RZ, or a turbosmart dual port (I've heard drivability remains stock if you swap out springs for their lighter, "recirc only" spring). You can try a synapse valve but I would't recommend it (some people like it, most people say they still experience high amounts of surge with it). HKS is a no no unless the sound means more to you then the ability to drive at part throttle...

How much are the ngrs running for the evo x..

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hi im juz wondering is any here experience when putting a hks bov sqv 4 at stock when u goes up to 80 the car were like chocking or theres a clog it bothers me alot when im driving in express way

Gas is your evo tuned or untuned

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