BOV question... running lean

[shuttlegoosecock]

yeah, i had a question about running a vented BOV. when u run a vented BOV it momentarily makes the engine run lean, what r things that you can do to make it not run lean and stall, besides becirculating it... because the sound is basically the most appealing part of the turbo. but anyways i was hoping maybe dezod or oldman or one of you guys knows of somthing to do. thanks

[reign]

When the BOV goes off, it actually runs rich. The reason is that the computer already made the adjustments for the amount of air going through the MAF. When that air gets blown off through the BOV, it still adds the fuel for that much air. You can even it out with an emanage or similar device, though.

[shuttlegoosecock]

yeah... i knew that was somthing that i could do, i also heard of people that have an anti stall or somthing like that... i guess it can be activated by a stand alone. yaeh i was just wondering if their was a way for the car to not run rich when the air was running back through without a standalone or recirculating it. alright thanks

[Joe_Dezod]

There's a few options...

The best way to go if you like the loud sound is to use the Greddy Emanage and the anti-stall feature. It basically pulls back fuel for that breif second to make sure the extra rush of gas that would have hit the motor doesn't stall it.

Stand-alone systems use MAPs for the most part. MAP stands for manifold absolute pressure. They measure what's inside the intake manifold, not what's flowing through the air filter like a MAF system. MAPS are much easier to tune but doing the conversion is a little more costly.

The third and cheapest option is to re-circulate the BOV. The Greddy RS and HKS SSQV can both be converted to recirculate. Because they're so loud to begin with it's still pretty audible when it goes off.

We're choosing the Emanage option for many reasons. You need it anyway because you need some type of fuel and ignition adjustment. We're using the MAP sensor greddy sells to tune the systems, instead of the MAF system. We can then upgrade the fuel injectors, and get rid of the stalling/rich issue. It doesn't cost much, and it's compatible with our Tial BOV because that unit is only atmospheric.

[matty-tC]

recirc it. friends don't let friends drive rice.

[aarontrini85]

Originally Posted by matty-tC

recirc it. friends don't let friends drive rice.

hahaha


but yeah from what i have read recirculating bov's are the best option it seems to be what all the wrx guys do

[matty-tC]

it makes the car run better and it's not loud and obnoxious... i dunno but for some people they tend to think louder is better when it comes to exhausts and such. now with the turbo kits they think just because its fast it cant be rice... ohh how wrong they are


note: i by no means am being racial with the term rice. nor never will be. thanks for reading this. no you can't have the 7 seconds of your life back.

[HKSpeed]

turbo 240sx owners use the Apexi Super AFC to fix the rich/stalling issue.

[matty-tC]

if they're using a oem turbo setup, that would make sense.

on this platform, the emanage would be a better answer to the problem. it's antistall feature is made for this.

[Joe_Dezod]

Originally Posted by matty-tC

if they're using a oem turbo setup, that would make sense.

on this platform, the emanage would be a better answer to the problem. it's antistall feature is made for this.

That and we have the larger injectors we need to control. SAFC is more for percentages.

Also, not to disagree with you matty, but to me rice is an atitude not a style. What one person thinks looks good on a car, another may not. It's the same with a house or anything else you work on. I like the sound of a vented BOV. I think it adds a nice little touch to the kit. Some may not, and they're entitled to their opinion. I just don't think it qualifies as rice. Too many people are taking "rice" to seriously and accusing so many things as being rice these days. And Matt I am not directing this to you in anyway, just unloading my opinion! Anyways back on topic... yeah a recirc or emanage is the best way.

[HKSpeed]

Originally Posted by matty-tC

if they're using a oem turbo setup, that would make sense.

on this platform, the emanage would be a better answer to the problem. it's antistall feature is made for this.

they ran it on aftermarket setups.
i had one on my SR equipped with a HKS GT2530 turbo, HKS SSQV bov (on the hot coldpipe), fmic, walbro fuel pump, etc. I shopped around and found the Super AFC-II for $250 new. Allowed me to run atmospheric bov without a hitch. I would've opted for stand alone engine mngt like the AEM EMS or Apexi PowerFC, but they cost considerably more.

If the Greddy EMS allows you to switch from a MAF to MAP sensor setup (which the SAFC doesnt), then I'd pay the extra money and go with it. The only other alternative I can think of is the HKS Vein Pressure Converter, which is nearly $1000 and no longer sold in America.

[matty-tC]

yeah oem turbo cars generally also have smarter computers and stronger internals (can put up with more abuse) also.

as far as the rice convo: I agree to each their own, I just think making the car louder than it has to be (and also makes you have to use features such as the antistall) is detrimental to the look/feel of the car. I've always been the sleeper type though. so maybe its just me

[aarontrini85]

Originally Posted by Joe@Dezod

That and we have the larger injectors we need to control. SAFC is more for percentages.

Also, not to disagree with you matty, but to me rice is an atitude not a style. What one person thinks looks good on a car, another may not. It's the same with a house or anything else you work on. I like the sound of a vented BOV. I think it adds a nice little touch to the kit. Some may not, and they're entitled to their opinion. I just don't think it qualifies as rice. Too many people are taking "rice" to seriously and accusing so many things as being rice these days. And Matt I am not directing this to you in anyway, just unloading my opinion! Anyways back on topic... yeah a recirc or emanage is the best way.

ill agree with you on this joe i was going to try to bring up a point but thne i realized that my example leaned more twords what you were talking about.

last friday i think it was there was a white 2nd gen gst that was driving next to mand he kept reving his enigne to make his bov go off i thought this was rice that i could hear it even when i slowed downt to get away from his anoying ___ but then i thought no its more the attitued that he had constantly reving his car to show off his bov


so you win with out even arguing lol

[matty-tC]

Originally Posted by HKSpeed

they ran it on aftermarket setups.
i had one on my SR equipped with a HKS GT2530 turbo, HKS SSQV bov (on the hot coldpipe), fmic, walbro fuel pump, etc. I shopped around and found the Super AFC-II for $250 new. Allowed me to run atmospheric bov without a hitch. I would've opted for stand alone engine mngt like the AEM EMS or Apexi PowerFC, but they cost considerably more.

If the Greddy EMS allows you to switch from a MAF to MAP sensor setup (which the SAFC doesnt), then I'd pay the extra money and go with it. The only other alternative I can think of is the HKS Vein Pressure Converter, which is nearly $1000 and no longer sold in America.

oh i've seen it on 300whp+ na-> turbo conversion but its not as precise as the emanage (better injector control is great for good idle and a safe powerful engine).

and from what i've seen/heard/read, the AEM EMS is the way to go. but honestly i don't have too much experience with anything other than piggybacks.

[HKSpeed]

Originally Posted by Joe@Dezod

but to me rice is an atitude not a style. What one person thinks looks good on a car, another may not. It's the same with a house or anything else you work on. I like the sound of a vented BOV. I think it adds a nice little touch to the kit. Some may not, and they're entitled to their opinion. I just don't think it qualifies as rice. Too many people are taking "rice" to seriously and accusing so many things as being rice these days. And Matt I am not directing this to you in anyway, just unloading my opinion! Anyways back on topic... yeah a recirc or emanage is the best way.

lol. i agree.
people who over apply the word "rice" are equally misinformed or misinterpreting the meaning as those who apply the accronym "JDM" to everything.

[Simplyscion]

My friend recircs on his 04 WRX...He is running a Greddy R I think...You can still hear the BOV, but its more of a cool swooshing sound....which I think still sounds sick. As for me, Im vented into the atmosphere, but I have no other choice w/ the TSI BOV valve...I have a greddy RS that I was using when I first put the turbo on, but I took it off to try the TSI valve and I happen to like the TSI valve better. Im gonna have another intake pipe fabbed up and have the greddy adapter welded into the pipe so I can just switch BOVs up whenever I want.

[aarontrini85]

Originally Posted by Simplyscion

My friend recircs on his 04 WRX...He is running a Greddy R I think...You can still hear the BOV, but its more of a cool swooshing sound....which I think still sounds sick. As for me, Im vented into the atmosphere, but I have no other choice w/ the TSI BOV valve...I have a greddy RS that I was using when I first put the turbo on, but I took it off to try the TSI valve and I happen to like the TSI valve better. Im gonna have another intake pipe fabbed up and have the greddy adapter welded into the pipe so I can just switch BOVs up whenever I want.

hahaha like chanigne shoes or some thing dress the car for the ocasin lol

[Ericc]

Originally Posted by shuttlegoosecock

yeah, i had a question about running a vented BOV. when u run a vented BOV it momentarily makes the engine run lean, what r things that you can do to make it not run lean and stall, besides becirculating it... because the sound is basically the most appealing part of the turbo. but anyways i was hoping maybe dezod or oldman or one of you guys knows of somthing to do.
thanks

Most appealing part huh?!?!
WELL HERE YOU GO!!!!!!!!

http://www.takakaira.com/accessories...ightpager.html

Enjoy the rice my friend.

[ScionDad]

Originally Posted by Ericc

Most appealing part huh?!?!
WELL HERE YOU GO!!!!!!!!

http://www.takakaira.com/accessories...ightpager.html

Enjoy the rice my friend.

[turbocivic]

I like my BOV loud....