MAZDASPEED BOV list

[505zoom]

I want to make a list of the MAZDASPEED owners that are running aftermarket BOV's and how they are each set up. This will help members that want to run a certain BOV get in touch with the right people for help/questions. I would also like to see how many of you are running the dual valve solution.

Please post:
1) type of valve (brand/model)
2) open-vent, recirculated, or dual (if dual, specify type of BPV)
3) Stalling? Y/N (if your car drops below idle level and then bounces up, put Y)
4) Surging (turkey) Y/N
5) Type of Intake
6) Sound clip (if possible)

Example for me:

1) HKS SSQV
2) dual w/ BoostSciences Reflex BPV
3) No stall
4) No surge
5) Injen SRI
6) http://www.mazdamp3.com/members/505zoom/mov00533.mpg

MEMBERS RUNNING BOV/BPV SETUP:

1) 505zoom
2) DiscreetSpeed
3) bored132
4) mazdaspeed75
5) hawaiian_msp
6) Mach 3.5 Turbo (stock IC piping)
7) GotBoost_02 (stock IC piping)
8) bOOsted
9) mspeed101
10) kicker22705
11) Notorious
12) speedmo21
13) MOnk
14) LAZERBLU2003.5

[TX Speed Demon]

First Set Up
1) Greddy Type S on Aluminum Hard Pipe (turbo>intercooler)
2) Open-vent
3) Stalling - Yes, it bounces when dropped from anything over 2000 RPMs
4) No Surging
5) Stock intake

After Adjustment
1) Greddy Type S on Aluminum Hard Pipe (turbo>intercooler)
2) Open-vent
3) Stalling - No, after adjusting the valve spring much tighter than the stock setting
4) No Surging
5) Stock intake

Second Set Up
1)Greddy Type S on Hiboost FMIC (intercooler>throttle body)
2) Open - vent
3 &4) I can eliminate either stalling or compressor surge, but not both. Either the greddy is loose enough to prevent surge and the RPMs dip too low, or the greddy is set tight enough to prevent the stalling, but I get compressor surge.
5) Stock intake pipe with cone filter

Third Set Up
1) Greddy Type S on Hiboost FMIC (intercooler > throttle body)
2) Recirculating
3) No stalling or dipping of RPMs
4) No Compressor surge (I had to loosen the greddy to almost it's loosest setting to get rid of the surge)
5) Perrin SRI - the perrin SRI has the MAF very close to the turbo. When venting, I think some air either backs all the way through the system, or just bounces around the intake and blows back through the MAF, causing the RPMs to dip. With the BOV recirculating the air is forced through a 90 degree elbow so it shoots away from the MAF and toward the turbo. No stalling, dipping RPMs or anything. Soft woosh sound - loud enough to hear outside the car, about the same volume as the turbo spooling through the SRI.

Fourth Set Up
1) Greddy Type S on Hiboost FMIC (intercooler > throttle body)
2) Open Venting
3) No stalling or dipping of RPMs
4) Yes - Under 2 specific conditions:
- Shifting out of boost, but with gauge reading 10-0 VAC I get a little.
- When coming off the gas while in boost, but not pushing in the clutch. If I push in the clutch there is no turkey.
5) Injen CAI - switching to the Injen got rid of the blowback issue experienced with the Perrin SRI (described in 3rd set up post) allowing me to run open vent again.

[KyRaceFan]

1) HKS SSQV on Alum Pipe
2) Atmospherically Vented
3) Stalls occasionally, i can drive around it, it bounce
4) Slight Flutter

No sound clip yet, been to cold to try to do anything lately.

[MSP2746]

I think it would be important also to add whether or not you're running an aftermarket intake. It's entirely possible that people who think they don't have the turkey anymore simply can't hear it because the BOV is drowning it out. Aftermarket intakes make the turkey much more noticeable.

[505zoom]

Good thinkin, updated

[mazdaspeed75]

Hks Sssq
Open Vent
Stock Bpv
Injen Cai
No Stall At All

[KyRaceFan]

I have a alum custom intake with k&n filter

[505zoom]

bump!

Stupid 10 character thing

[gcotton]

turbo xs type H34
open vent (soon to have dual setup)
stall fixed(finally)
slight flutter
custom sri

[hawaiian_msp]

bov: greddy type-s
vent: open (dual w/stock bpv)
stall: nope
intake: injen cai
sound clips: to come soon... :D

-mike

[Mach 3.5 Turbo]

1) HKS SSQV / Stock IC Pipe
2) dual w/ stocker
3) No Stall
4) No Surge
5) Injen CAI
6) :::Coming Soon:::

Maybe you should include in the first category the kind of piping people have. I know that GotBoost_02 and I both have stock pipes with a dual valve setup, maybe this is important to note. I noticed a few mentioned it anyway. Cool idea 505, this should be an interesting thread

[DiscreetSpeed]

1.Turbo XS RFL bov
2.dual with stocker
3.no surge
4.no stall
5.injen cai
6.SOUND (http://big-water.net/video/Discreet.avi)

[mazdaowner123]

Nice thread, one quick dumb question, but do you need to have hardpipes in order to do the stock BPV + bov vented to atmosphere? Thanks again 505zoom, car sounds awesome.

~brian

[DiscreetSpeed]

nope check out what Mach3.5 came up with.

[Got_boost02]

1) Greddy Type S on stock pipes
2) Dual valve w/stocker
3) No stall
4) No turkey
5) Cone filter
6)movie asap!

[MJG]

Is that the only place that you can place the BOV on the stock pipes... and not stall.

[DiscreetSpeed]

Is that the only place that you can place the BOV on the stock pipes... and not stall.
no you can put it where you see fit.

[tiwing]

1) Turbosmart dual port on Steel hardpipes
2) Open vent and recirc
3) No stalling
4) very MINOR surge at LOW boost, nice psssht at higher boost. Dedicated vacuum source off the manifold (ie. not shared with wastegate)
5) Injen SRI
6) No sound clip.
7) up to 8.5 psi

Will be converting to dual valve in 2 weeks and converting the dual port into dual stage BOV.

[FunkyCold5]

turbo xs type H34
open vent (soon to have dual setup)
stall fixed(finally)
slight flutter
custom sri


Gcotton,

How did you fix the stalling if it's vented? Or anyone that can answer this?

[505zoom]

Gcotton,

How did you fix the stalling if it's vented? Or anyone that can answer this?

You can either run a recirculated BPV in conjunction with the open-vent BOV, or you can put the MAF sensor on the IC---->TB pipe AFTER the BOV. Either will work, but our MAF is not a blow-thru type so it may or may not have problems with pressurized air running through it.

[LiLiTaLy]

1) HKS SSQV on Spool Hard Pipes
2) open atmosphere single valve
3) Can stall but i worked my way around it
4) No turkey
5) stock intake
6) I'll try and get a movie

[Torco-MSP]

forge motorsports fmdv004
open vent
no, stalling
yes, turkey
open filter
http://www.msprotege.com/members/Torco-MSP/bovfilter.jpg

[TX Speed Demon]

Gcotton,

How did you fix the stalling if it's vented? Or anyone that can answer this?

I've reduced mine by tightening the spring tension on the Greddy Type S, and this weekend I"m goign to increase the idle to 900 RPM to see if this alliviates the problem as I've read in previous threads.

[Black Majik MSP]

You can either run a recirculated BPV in conjunction with the open-vent BOV, or you can put the MAF sensor on the IC---->TB pipe AFTER the BOV. Either will work, but our MAF is not a blow-thru type so it may or may not have problems with pressurized air running through it.

Or you can get the Forge dual-piston BOV...several people already have it, but only Torco has posted in here & I'm not sure if his setup is the same as what they are selling now. Hopefully I'll be getting mine this weekend. :D

[FunkyCold5]

so the Forge Dual-Piston BOV is not recirculated and fixes the stalling problem? Does it have that nice PSSSHHHH sound still? Thanks a lot guys. Cuz I def. want a BOV.

[Scott]

1) Forge Motorsport
2) 2-piston BOV
3) No.
4) Yes.
5) Stock airbox
6) no sound clip yet.

[JDM Sam]

HKS SSQV hard pipe & drop in flange on stock pipe
Single valve vented
No stalling
No "turkey noise" with both stock box and hks filter
Using same vaccum line at the T.
Clips in sig.

Greddy Type S (Friend's Car)
Same set up as mine but with Injen CAI
No stalling but idles bad after hard idle revv.
May stall on first few days of install.
Clip not in sig but archived somewhere on the forum.

[MJG]

jdm sam ,thats were I saw the bov setup I have been talking about.... So is that a good location for the bov or is it still giving issues

[JDM Sam]

What setup my hks or my friends greddy? My HKS has never given me any issues. Why wouldn't it be a good location? The bov works anywhere between the throttle body and turbo.

[b00sted]

My name is Chris and I have a Mazdaspeed

1)Greddy Type-s BOV
2)Vented to atmosphere w/ stock BPV
3)No Stalling
4)No Turkey
5)Stock Intake w/ Conehead filter

[505zoom]

My name is Chris and I have a Mazdaspeed

1)Greddy Type-s BOV
2)Vented to atmosphere w/ stock BPV
3)No Stalling
4)No Turkey
5)Stock Intake w/ Conehead filter

Glad to hear it's working for you too.:)

[hazeXban]

What setup my hks or my friends greddy? My HKS has never given me any issues. Why wouldn't it be a good location? The bov works anywhere between the throttle body and turbo.

Your drop in flange...where is the outlet pipe to the TB? I dont see one in the photo...Or I am just an idiot...

[b00sted]

i placed my greddy bov about 6 inches from my throttle body. i saw someones pic on one of these threads and they said it worked fine..so i gave it a shot and confirmed

[DiscreetSpeed]

heres my sound file..kinda of sharp gear changing so you dont get the full sounds
BOV sound (http://big-water.net/video/Discreet.avi)

[gcotton]

Nice, how and the hell can you run like 14psi. Makes me nervous

[DiscreetSpeed]

15 bud...some high octane will do the trick.

[505zoom]

Back from the dead.

I know that there are several more of you that are running the BOV/BPV setup... post up with your info and I will continue to update the list in the first post.

[peepsalot]

1) Mitsubishi 3000gt stock BPV
2) recirculated
3) I had some stalling before changing the BPV(along with FMIC) and it is now slightly worse
4) No turkey
5) AEM CAI converted to SRI
6) none

[mspeed101]

1) Greddy Type S BOV
2) Dual Setup w/ TurboXS bypass valve
3) Occasionally it may dip but never stall
4) No turkey
5) Perrin SRI w/ Turbohoses 6inch Air Ram
6) No sound clip as of yet

[kicker22705]

1) HKS SSQV BOV venting
2) Dual setup w/ stock BPV.
3) Occationally only on cold startups
4) Occationally within "hessitation rpm band"
5) Injen CAI

[Notorious]

1) Greddy Type RS
2) dual with stock BPV
3) Yes
4) Partial, only at some rpms and it only "chirps" Most of the time its a clean sound
5) Injen, converted to short ram
6) sorry

[speedmo21]

turbo hoses hardpipes,injen cai..turboxs type s BOV reloacted.. and the turboxs H34 bypass valve in the stock bpv loctaion

[MOnk]

1) HKS SSQV
2) dual with stock BPV
3) No stalling
4) No turkey
5) AEM CAI
6) No sound clip

[505zoom]

Updated list in the first post.

To those of you that are having stalling or surging problems with the BOV/BPV setup, feel free to get in touch with me and I will try to help you get it running perfect.

Common solutions that have helped other people:

Give your valves a clean vac source from the brake booster line.
Adjust the valves (if possible) and test how the car performs at different settings.

[LAZERBLU2003.5]

1) Greddy type RS BOV, on turbohoses hardpipes
2) Dual with stock BPV
3) dips a little but no stall
4) no turkey more of a CHIRP
5) Injen intake
6) no sound clip

[jaw307]

1)monza ssq
2)just 1 bov
3)no stalling on normal driving(not screwing around)
4)turkey at low boost(still tuning)
5)injen intake
6)no sound yet

Pic of my setup (http://www.msprotege.com/forum/showthread.php?t=98530)

[ND4MSP]

forge bov
open
stock box, hacked(don't do it), green drop in
stalled once in 4 months at standstill
sorry no sound clip
still some turkey at part throttle

[Titanium-99]

1) HKS SSQV BOV
2) Venting
3) stalling and surge
4) Injen CAI
5) turky at low rpm's

Can any one help me get around the stalling and surge plus the BOV is opening to soon.

Here are some pics. Notice there is not adjustment on the top of the BOV this I hear is the new style HKS BOV

[505zoom]

1) HKS SSQV BOV
2) Venting
3) stalling and surge
4) Injen CAI
5) turky at low rpm's

Can any one help me get around the stalling and surge plus the BOV is opening to soon.

Here are some pics. Notice there is not adjustment on the top of the BOV this I hear is the new style HKS BOV

Well, you are running open vent by itself on that new style of SSQV (which sucks from everything I have seen about it so far), so that is your stalling problem for sure. Most likely your surging problem too.

Try to locate a older HKS that can be adjusted and swap yours... I still don't understand why on earth HKS decided to do this new style, makes no sense to me at all.

[JDM Sam]

I agree that was gay of HKS to cheap out on using the adjustable valve.

[slug420]

so it looks like dual with stocker is an excellent setup....what I was planning on anyways. You mention the SSQv is a crappy bov? I know I can see what ones people went with in their posts here but which one is better than another?

[JDM Sam]

The OLD SSQV is not crappy, the new design where they deleted the valve adjustment is crappy.

[505zoom]

so it looks like dual with stocker is an excellent setup....what I was planning on anyways. You mention the SSQv is a crappy bov? I know I can see what ones people went with in their posts here but which one is better than another?

No no, the SSQV is a GREAT valve, but the new version of it that isn't adjustable is crappy. A lot of people like the Greddy Type-S as well, seems to be solid.

edit: damn you sam:p

[hoindawall]

1) greddy type s
2) dual, stock bpv
3) Stalling? N
4) Surging (turkey) one or two gobbles
5) AEM CAI
6) no more

[Shadow102]

1. Greddy type S ebay knock off
2.dual setup stock BPV
3.No stalling some rpm dip
4.4k heavy load turky
5.stock airbox with K&N and DSM harpipes

[atticus1398]

1) GReddy
2) dual set up w/ stock bpv
3) no Stalling
4) no turkey
5) injen Intake

[ZenProtege]

1. Turbo Specialties BOV
2. Single BOV on hard pipes
3. Stalling only under moderate/hard acceleration then immediate stops that aren't geared down
4. Custom SRI
5. Nice clean whoooosh

[TX Speed Demon]

Can any one help me get around the stalling and surge plus the BOV is opening to soon.

Here are some pics. Notice there is not adjustment on the top of the BOV this I hear is the new style HKS BOV

Have you tried removing the black piece at the back of the BOV like I suggested? I bet it just covers the adjustment screw. I would try to pry it off somehow. if it doesn't easily come off I would unscrew the entire back and see if the adjustment screw is underneath. I mean, what have you got to lose, the valve doesn't work properly the way it is now right? Just use a Digicam so you can remember how to put it back together properly.

I guess it's possible that the new valve is non adjustable, but it doesn't say anything like that on HKS's USA or Japan site. All the diagrams show adjustable valves. Why would they cheap out on their #1 selling BOV? Just seems like an obvious no-brainer to me.

[JDM Sam]

New ones are flat solid metal where the adjustment should be. I saw it first on Jake's car and was like WTF!?

[Wiggles422]

1) Greddy Type S
2) recirculated
3) No stalling
4) Little bit of turkey
5) Injen (SRI)
6) http://s40.yousendit.com/d.aspx?id=090NFIAU4VCU51TA7VZB53EZKL (i dunno how long that link will last, keep me posted)

[Swerny]

Threadjack,
Trying to get my SSQV installed (dual) for my Ion kit.
What size is the Brake booster line ID.
I need to get a T for it.
The super turkey is driving me nuts.
Thanks.

[505zoom]

What size is the Brake booster line ID.

3/8"

[Swerny]

Gracias 505zoom.
So how the hell do i get a hose to fit 3/8 at one end as well as the tiny nipple on the SSQV?

[505zoom]

Gracias 505zoom.
So how the hell do i get a hose to fit 3/8 at one end as well as the tiny nipple on the SSQV?

Go to autozone, and get a package that has a variety of sized T's. They will have one in there that has 2 3/8" ends, and 1 3/16" end. Put the 2 larger ends on the BB line, and then hook up a hose that goes to your SSQV the the 3/16" end.

[ChopstickHero]

Go to autozone, and get a package that has a variety of sized T's. They will have one in there that has 2 3/8" ends, and 1 3/16" end. Put the 2 larger ends on the BB line, and then hook up a hose that goes to your SSQV the the 3/16" end.

thanks... i needed to find this out for future use... :)

[505zoom]

No problem fellas.

[Swerny]

Thanks again 505Zoom.
Too bad there isn't an Autozone in Toronto.
I'll try my local parts stores but I didn't realize you could get a T with 2 different-sized ends.

[Wiggles422]

this pic was posted a while ago in a thread, whose ever pic it is thanks for letting me borrow it.
this is supposedly (i say that b/c i havent tried them yet) the box you need

[505zoom]

this pic was posted a while ago in a thread, whose ever pic it is thanks for letting me borrow it.
this is supposedly (i say that b/c i havent tried them yet) the box you need

Yup, that is the one.:)

[StreakinOraNgeX]

I want to make a list of the MAZDASPEED owners that are running aftermarket BOV's and how they are each set up. This will help members that want to run a certain BOV get in touch with the right people for help/questions. I would also like to see how many of you are running the dual valve solution.

Please post:
1) type of valve (brand/model)
2) open-vent, recirculated, or dual (if dual, specify type of BPV)
3) Stalling? Y/N (if your car drops below idle level and then bounces up, put Y)
4) Surging (turkey) Y/N
5) Type of Intake
6) Sound clip (if possible)

Example for me:

1) HKS SSQV
2) dual w/ BoostSciences Reflex BPV
3) No stall
4) No surge
5) Injen SRI
6) http://www.mazdamp3.com/members/505zoom/mov00533.mpg

MEMBERS RUNNING BOV/BPV SETUP:

1) 505zoom
2) DiscreetSpeed
3) bored132
4) mazdaspeed75
5) hawaiian_msp
6) Mach 3.5 Turbo (stock IC piping)
7) GotBoost_02 (stock IC piping)
8) bOOsted
9) mspeed101
10) kicker22705
11) Notorious
12) speedmo21
13) MOnk
14) LAZERBLU2003.51.Greddy type s on hardpipes.
2. Dual set-up with stock bpv.
3. Yes, considering that it bounces very very low almost 80 percent of the time, and stutters the car a few times a month.
4. Some surge at low rpms and when i let of throttle quickly, otherwise, If I let off slowly I can just make bov sound.
5. Injen intake

[Concept MSP]

1) TurboXS H-34
2) Recirculated
3) Stalling? No
4) Surging (turkey) Yes
5) Injen Intake

[poboxjosh]

Those running dual with stocker are you keeping stocker on the Ic->tb side or from other side.

[hoindawall]

Those running dual with stocker are you keeping stocker on the Ic->tb side or from other side.

mines is stock location, hot pipe --> intake

[Blaznmsp]

1.Greddy type s
2.dual set up-stock bpv
3.no stalling at all
4.only in 2 and 3rd gear with low rpm shifts.
5.injen cold air intake
6. sry no sound clips.

[MyOrangeToy]

1) HKS SSQV
2) open-vent
3) Yes (Only when I m diving and shift to N and let off the gas padel)
4) Surging ( Yes)
5) Injen CAI