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]

Bov

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...

-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

 

[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.