BOV how-to question

[borderline]

Hi!
I would like infos on how to connect engine hoses on my old HKS BOV.
Seems to be a very stupid question, I know, but I need to learn!
p.s: I have the flange that fit my engine (not pictured)

Here is my BOV (ignore the T pipe):

and my engine bay:

question 1: Is that possible that my BOV is only VTA? cause I can't connect my hose #1 on that valve...

question 2: If my BOV is a VTA, can I use it on my car?? If I can, what do I do with hose #1?

Any help is appreciated!! I'm very new in the turbo's world....
(ugh)
THANKS!

 

[tsunami]

bump cuase i got nothing???

 

[nocoastgangster]

thought this might help

I couldn't see your picutres, but i thought this might help.
This is just a general link for BOV hook up. http://www.turboxs.com/faq/turboxsrbv.htm
I'm under the impression that the BOV on the MS3, (which you have?), is a recirculating one.
Hope it helps some.
Tim

 

[kytuner]

I hooked up an atmospheric bov to my friends 240, which is naturally recirculating. All we did was block off the port in the intake for the recirc fitting. He eventually got a pipe made with no port in it. It cost him like 15$ for the muffler shop to make the pipe out of steel, then he painted it black. Hope this helps.

 

[borderline]

Yes it helps!!
Thanks nocoastgangster and kytuner!

Yes nocoastgangster, my oem valve is a recirculating one...

 

[boostdog]

then won't that cause u to run rich? it does on other cars with rec. bov's. i donot have an ms3 but thought that would make sense.

 

[Equinox]

then won't that cause u to run rich? it does on other cars with rec. bov's. i donot have an ms3 but thought that would make sense.

That all depends if the Recirc BOV pushes the air into the intake before or after the MAF

If the Mass air flow sensor sees the air go into the intake, and then it leaves the intake via a bov, the MAF will add fuel for the incoming air, but the air will never get there. Hence yes, you will run rich, if the MAF saw the air before it vents, which in most cases, it does.

 

[TurboXSJermaine]

Hello guys,

My name is Jermaine, I work for a company called TurboXS. You may or may not have heard of us. I just wanted to give you guys a heads up that we do have a bov mount kit for the Mazdaspeed 3 & 6.

If you are interested please give me a call at 301-977-4727. I will be posting dyno plots of our shop Mazda with modifications soon. We also have a boost controller upgrade, short ram intake and fuel computer upgrade available.

Later,

Jermaine@turboxs.com

 

[Equinox]

Woot TurboXS, I have super distand relation to them lol. My mother in law's uncle or something I thin kis an owner or patial owner... I dunno lol. Great company omg

 

[TurboXS Mark]

Woot TurboXS, I have super distand relation to them lol. My mother in law's uncle or something I thin kis an owner or patial owner... I dunno lol. Great company omg

LOL. That reminds of the scene from Spaceballs where Dark Helmet says "I am your father's brother's uncle's former college roommate." or something like that.

My name is Mark and I am one of the two owners of TurboXS. The other owner lives in Australia. My only niece is about 7 years right now and last I checked she was no one's mother in law so you might have the wrong company, but thanks for the compliment!

In any case, as Jermaine said, the BOV adapter kit for the MS3 and MS6 is ready to go! More cool stuff is on the way. We will posting more info next week after the Thanksgiving holiday.

And to actually add something useful to this discussion, a vent to atmosphere BOV like our RFL will cause the car to run slightly rich for a brief second after the valve vents to atmosphere for the exact reasons Equinox posted. You will even get a little backfire now and again with a vent to atmo BOV installed on the MS3. Of course, you also get a cool "Ka-Chhhhhh" when you shift. Ah, life if full of tradeoffs...

BTW, we are loving the MS3. I haven't driven the EVO, WRX, or STi home since we got the MS3! I look forward to making a great car even better.

Mark
TurboXS

 

[Equinox]

You don't perhaps know someone that works there that knows Ann Vargo?

 

[benzo]

Mark- Is the whole running rich going to cause any problems down the road? Do you guys have any plans for ECU upgrades?

 

[Equinox]

running rich = worse mpg, sometimes worse horsepower, as it is less efficient, and in some rare cases it can call stalls while you are driving mid shift. Nothing I can think that is permanent though. As far as stalling it's usually when you gun it hard, shift, and completely let off it, so it's not all that common. Ultimately the car wasn't designed for it, and if you want to run some sort of BOV, I'd suggest one that is 50/50 half recirc half Atmosphere, that way it's less traumatic to your car. I believe the MSP has one for it that does the same thing.

At worse your car will have a burble and maybe lose a horsepower or two. Not healthy, but it works. Also your muffler may start getting carbon build up (black)

 

[PRO 5]

My car already had carbon build up on the tailpipe! LOL! This car runs so rich it's rediculous. Can't wait for COBB to finish the AccessPort and lean this car out a bit. Should see some good power gains.


Dave

 

[benzo]

Man i thought i was the only one have a ton of carbon coming out of the tailpipe. Every time i am done driving i have to clean the tail pipe cause there is so much. Is there anything we can do to lean it out a little bit?

 

[Equinox]

Yeah I guess mazda turned up the richness for safety. Figured tuners are gonna turn up the boost anyhow. that's my guess.

 

[benzo]

Well i called up a performance shop here in town. I have an appointment with them on Monday to talk about some potential HP increase. I would like a boost gauge, BOV, ECU upgrade of some sort, Wastegate ?. So we will see what they recommend for this car. I really do not want my brand new car to be test pig cause i need this thing to run everyday and not void my warranty. I will post my findings out on Monday night.

 

[Mspeed3]

Im getting mine dyno tuned to lean out the A/F ratio. I'll let everyone know how it works out.

Sean

 

[benzo]

Please keep us posted.

 

[TurboXS Mark]

Mark- Is the whole running rich going to cause any problems down the road?

Typically, there are no long term problems caused by running a vent to atmosphere BOV. Like I said above, you will get some minor backfiring and you could get slightly worse gas mileage. I suppose that in a worse-case scenario, running rich could cause premature catalytic converter failure, but that is unlikely.

Do you guys have any plans for ECU upgrades?

We are considering all our options with regards to engine management but I can not commit to anything at this time.

Man i thought i was the only one have a ton of carbon coming out of the tailpipe. Every time i am done driving i have to clean the tail pipe cause there is so much. Is there anything we can do to lean it out a little bit?

Nope, we all have it. The MS3 does runs pretty rich from the factory. Under full load our MS3 is running AFRs ranging from a merely "rich" 10.8:1 to a "pig rich" ~9.8:1. However, this AFR is fairly typical of a factory turbocharged car. If the MS3 is like the MS6, you can lean it out with a fuel computer (Shameless Plug: Like our DTEC-FC ). We made significant horsepower gains on the MS6 with just the DTEC-FC. We will see if the same holds true for the MS3.

Mark
TurboXS