anyone using any type off aftermarket BOV that vents to the air :
are you guys having any problems with them? do they sputter or get stuck open? will they still vent even though you shift at 3000 rpm? and have they affected the driveability of your WRX?
i'm considering the turboXS RFL , forge BOV, or the turboXS type-H. how do your BOVs sound?? thanx for your time.

sorry for all the questions, i just want to get some information before i buy one.

i have the turboxs type-h bov...installed by the people of www.akautocear.com :lol: ...i haven't had any problems with mine so far. it only sputters if i shift before the turbo has spooled enough to really open the valve...if there isn't enough pressure then it's not really gonna vent...as for driveability, it's about the same...most of the time ur driving to build the pressure so when u shift u get a nice pssstt...:D does that answer any of ur questions?

is the Type-H as loud as people say? loud enough to get noticed?

it's pretty loud...i'll let u hear at the meeting...unless u wanna meet up before and take a look...

forgot to say thanks for your replys.
if its not too much trouble, i'd like to hear it sometime before the meet because i might not make it to the meet.
when would the best time be for you?

wednesday after 5pm...is good...could be earlier if i work or not...

sounds good, maybe we can meet at Borders or somewhere else, where ever's best for you.

sure...i'll give u a call...i'll get ur number from the registry....

You're not going to make it! The meet is giong to be the best place to hear all the different types of BOVs. Plus, you'll get everyones opinions on their BOVs.

I have the GFB BOV. It's been in the car for a couple months now. I haven't had any problems with sticking or sputtering. 3000 is kind of low to be producing any noticeable boost blow off. I haven't noticed any difference in the driveability except for the fun factor. My car makes so many different noises that I haven't driven with the radio on in a couple days. Love all the sounds. The Forge and the RFL have similar sounds except the RFL is really loud. Louder than the standard type-H.

You'll just have to make it to the meet and listen to all of them. Ofrder has the forge, AK-WRX has a type-H, Ilir has a RFL, and a number of us have GFBs.

Chris is planning on coming over to my place Wednesday night at 6pm so we can put his bushings in, so if you want to meet up there after 6pm that is cool with me.

Maybe we can get Winslow to stop by too, so you can hear a GFB BOV.

If you need instructions or anything let me know.

later....Kris

I can come over Wednesday anytime after 11am. I have a meeting at 9am then I'm out. Winslow

Sounds good. I have another Suby owner with a 98 Green RS coming over that night too. So it sounds like we will have a mini-meet. Not until 6pm though

Kris

hopefully i'll get back in town on time so i can make it to the meet. So far i have only heard the RFL and Forge. I really like the way the RFL sounds, it even has a slight whistle/ringing noise after it blows off. The forge one i just heard a quick pshhh. I have yet to hear a GFB in person:cool: i'll try really hard to make it to the meet!! it seems like this one is going to be really big!!:eek:
watch, sears calls the police cause they think we are organizing a race or something because of all the WRXs in the parking lot:lol:

Kris,can i come?I want to put my bushings too!

Can I come too? I have a GFB BOV. I had to get it modified since the install because the 50% vent was way too quiet. I can get rid of some Fuba replica antennas.:lol:

Robert,
Do you really have bushings you need to put into your car? If so we might be able do it that night, but we will have to see how it goes.

Kris

yup,I have it.just never put it cause I dont have a heater in my garage.it's cold!!!

I can throw those in for you sometime, but I think tomorrow will be pretty packed. But give me a call and we will see how it is going.

Later....Kris

you can do it! it's a mini meeting tomorrow! and install session! :D i just want the "g" fixed...i can do the bushings at home...my garage is heated...but if u want u can install my rear dif skid plate! just kidding! :lol: but i will be there tomorrow for sure to do the "g" thang!

Everyone's going to be at Kris' house tomorrow night to hear BOVs and do mods. Ben lives right down the street and always has it open to mods. I'm sure if we ask he'll let us do the bushings there too. Bushings take 15 minutes. Please try to stay on-topic. These threads get cluttered with off-topic conversations. At least post something about the thread posters question. Winslow

Just please do not pull up and start revving hard and blowing off your BOV's.

I try to keep things on the DL as much as possible, so as not to annoy the neighbors just yet.

here's a pic of the install that kris did of my turboxs bov!

Chris,

Did you ever stick the other washers in? Winslow

Isn't that a personal question?

But I will answer it for him, no he did not put any spacers in, he likes his "phoosh" just like it is....:lol:

nope...i was thinking about it though...

can't decide on which one i like now... the GFB or the RFL. I like the RFL for looks and sound, but i only like the GFB for its sound, i think it looks kinda funny. i noticed with the GFB there was no sputtering or anything when u shift at 3000 rpms or below, just a quick pshhh. I'm not sure on what the RFL sounds like from inside, only heard it revving in place. the forge is also one i'm considering but i never really heard it in person before.

Get the RFL because everyone has the GFB and you might want to go louder anyway. I'm interested in the HKS BOV that Ofrdr has. He needs to put that on so we can hear it. :alien:

is the GFB loud from outside?

Loud is a very objective word. To me, I think the RFL is loud. Definitely, louder than the GFB. We'll have to do some drive bys for you so you can decide. The one good thing about the Hybrid GFBs is that you can run them 50/50 or 100 if you want to change the loudness. Winslow

i like the RFL cause it sounds very distinct. i downloaded a GFB video clip and it seemed kinda quiet, maybe it was set at 50/50?
but it seems that some people have been having problems with their RFLs. I also read of some people who had problems with the GFB. hmm.. not too sure:confused:

hey ofrder, if you read this, are you having any problems with your Forge BOV?

I believe ofrder has had some problems with his due to the weak spring. I think he said he was bleeding off boost. I've heard that about TurboXS and the GFBs. What other problems have you heard? Winslow

Well actually,i thought i did but it was my exhaust was just loose and the first thing i did was take of my BOV but then i heard a sputtering noise from under my car and sure enough it was the exhaust.Tightened it,put the BOV back on and everything is fine.

Then again,i'm switching to HKS super sequential as soon as I get the adapter! Want my FORGE BOV Mike?

for how much?:D

i downloaded an RFL video clip...pretty loud and sounds nice. I got another GFB one, sounds good too!

hey winslow, do you have any info on the other BOVs GFB offers for the WRX? the Bovus maximus looks interesting and the Mach 2 looks just like yours but no recirc. part, maybe its louder?

heres the link i got the clips from http://people.clemson.edu/~vvu/bovs/ lots of different ones, some are from the WRX and some are other cars

look at what i found, don't know if you have seen it yet but here.
http://i-club.com/forums/showthread.php?s=&threadid=139990

someone with the HKS SSV on his car.

The GFB Bovus Maximus is similar to the TurboXS RFL in sound levels. The GFB Mach 2 is a 100% atmos BOV while the Hybrid is selectable between 50/50 and 100. The HKS BOV can be mounted but a flange has to be made. HKS BOVs are not Make and Model specific so you have to either buy the correct flange or have one made. Having one made wouldn't be hard but finding someone to do it would be. HKS BOVs setups are more expensive but worth it if you can get it hooked up. I think if I took the HKS BOV and a TurboXS flange then I could get one made. Any donors?

the HKS SSV in the thread i posted was made specifically for the WRX i think. in the pic it shows the specs on the BOV box and it says WRX Sti and GDB. looks like it sticks up alot though.

do you think GFBs are more reliable than TurboXS?

Unless, HKS has produced a specific kit in the last week then they haven't made one for the WRX. Both the GFB and TurboXS are reliable BOVs. You'll have to do some research on both of them. I know you will find good and bad things about both. The GFB can hold more boost pressure and is specifically made for the WRX. Boost pressure isn't a factor unless you are going to use an MBC or EBC, upgraded turbo, etc. but that can be a long discussion. Winslow

i've been reading some of the threads about the type-h and i think i'm gonna put a few washers in the bov sometime this week! see how it goes...:D

the guy got it overseas for his WRX, from Hong Kong i think.

maybe i'll get one if there is a kit for the US Spec. WRX
heres one more pic of it:

oops forgot to attach it

yeah saw that post...looks kinda funny though...but i guess it's one of the best sounding bov out there!

I don't think that HKS SS pic you found is for the right model. I can't tell if it is an 8 or a B. The flange that mounts to the Intercooler looks smaller than the US version. You can kind of tell by the size of the BOV and the flange. We'll have to retrofit the TurboXS flange with a locally manufactured adapter.

Winslow

OK guys, I'll bite. Is there any reason to get an aftermarket BOV besides cool moto-sounds? Does it have any affect on the slight hesitation between lifting the throttle foot and the dropping of rpm? How are the aftermarket versions superior to the OEM? I've never had a turbo before, am ignorant about the intricacies...

well...the aftermarket ones basically do nothing fo your car except the cool noise!:cool: but they are good t ohave if your are pushing more boost. i've read somewhere that the stock one leaks at around 21psi. the aftermarket ones also dress up the engine bay:cool: but other than the cool sound they do nothing else, but hearing the noise insures you that your BOV is doing its job.

once u upgrade ur turbo...it helps with the spool and prolongs the life of it...besides the "cool" noise thing!

I don't know bout you but my butt dyno thinks the stock BOV pulled better. Must be my imagination.:cool:

Most tuners never touch the stock BOV. It is a frivolous expense. Just waste your money and buy one. The sound is fun and makes me smile. Winslow

does the BOV vent when you down shift, like when you go from 3rd to 2nd gear and the RPMs go up?

heres another question,
does the GFB really go off easily, i read that people don't like how easily it vents. I thought it was just fine when i demoed it.

we should make a video of the different BOVs:D

Thanks, y'all, that tells me exactly what I needed to know.

I don't think it blows off easily. The TurboXS can be adjusted to hold pressure longer by installing more washers. The GFB is preset.

No, BOVs do not blow off when down shifting. The RPMs go up but the turbo isn't creating boost for the BOV to blow off.

so have you had any problems yet with the GFB?
when i get a BOV, should i lubricate it once a month so it will run smooth? what kind of oil or grease should i use ?

just saw another BOV i'm interested in, the turbosmart SuperSonic BOV:D i think its an equivalent to the RFL. but this one is adjustable by turning the top using a "quick wrist action?"

i saw a video of an mr2 with a turboXS type H bov, the guy was video taping about 20-25 ft away and when the mr2 shifted the BOV vented and it was pretty loud.
is the GFB loud enough for pedestrians or neighbors to hear? how about the turboXS type-H? i know the RFL will definately wake the neighbors:devil:
right now my choices are txs type-H or RFL, GFB, or turbosmart supersonic, and the forge. i haven't read much how about the forge though.

here are some more BOV problems i found.
are you guys experiencing anything like this?

http://i-club.com/forums/showthread.php?s=&threadid=99802&highlight=turbosmart

am i full of questions today or what?;) i have one more thing that i am worried about when getting a BOV.
since it can get really cold up here, do i need to worry about my BOV being frozen open or shut when i let my car sit outside in the cold?

bump

if my silly blow off valve questions are gettin annoying you can tell me to shut up if you want:( j/k.

its just that i wanna get some info before i actually get one. i know they do nothing for performance its just the sound i really like:D some day i'd like to hear a comparison of all the different ones you guys have, maybe at the meet or some other time.thanx!

I pity da fool who keeps asking about BOV! How about I strap a cat under your hood and have a sharpened stick connected to the stick shift somehow and that everytime you shift it pokes the cat to start hissing. You can change the sound by getting different kinds of cats.:eek:

I can say that your questions are persistent. We can get the TurboSmart BOVs from MRT. They are a good product but haven't had any experience with them. TurboSmart is an Australian company and most of the parts that have come from that area are good quality. To make your decisions harder, BPM is coming out with WRX specific BOVs.

I know if I have any questions about what BOVs are out there I can come to you. BOVs will require some maintenance because the pressure cylinder is exposed to dust and debris. I have noticed some of the turbo flutter noises that others have been hearing. I think it is specfic to the GFB and the intake I am using. It isn't bad or harmful to the car.

Winslow

ok thanks winslow! and everyone else for answering my persistant questions. i think i know enough about the BOVs and which one i wanna get. when i get one i know who to turn to;)

Just get one for the hell of it. It sounds cool and everyone is doing it.:devil:

Your reasearch in BOV technology has made you a prospective member of our corporation. Keep up the good work and you will be accepted. Winslow

cool:cool:

A blowoff valve is a pressure relief device used to save the engine when overboost occurs. It is actuated solely by overboost, with no other controls necessary. In a supercharger system, a blowoff valve can be used as a means of dynamic boost control (static boost control is achieve by choice of supercharger drive ratio). A BOV might be added to a boosted system to protect against backfire damage to a super- or turbocharger. It can also protect against a stuck wastegate valve by sacrificing the turbo to overspin.

see...more than just a cool sound! :D

Nice Copy and Paste. Winslow

i try! :D

you forgot to say how it is actuated and how engine vacuum sends a signal to the valve to open so that the pressure will be vented either back to the intake tract or to the air if you have an atmospheric venting BOV. ;)

You learn quick young grasshopper. Winslow.