Move MAF or Recirc 100%?

[HeHateMe]

I hate stalling. I dont mind turkey. What should i do?

 

[CasopoliS]

I hate stalling. I dont mind turkey. What should i do?

recirc. venting sucks for the most part.

 

[HeHateMe]

Do you think i need a full BPV, or can i use my Dual port, but only make it recirc?

 

[CasopoliS]

Do you think i need a full BPV, or can i use my Dual port, but only make it recirc?

up to you. I don't know anything about those valves.

 

[HeHateMe]

NO MORE STALLING!!!!!!! (shocked) (butthump) (drinks) (band2) (omg) (boobs) (nana)

I just made it 100% recirc, and NO STALLING!! The Turkey is crazy too, My brother thought my tires were breaking loose when i drove away from his house. I'm Thrilled now i can enjoy it, like i did before the FMIC! Thanks guys for the advice.

 

[ChopstickHero]

nice.... 100% recirc is easier and definitely no stalling. are you using the stock bpv or an upgrade bpv?

 

[Dexter]

do the right thing, talk to your kids about drug and alcohol abuse.

 

[Ryoga28]

Is dexter a bot? (j/k)

 

[TX Speed Demon]

Just remember that turkey you don't mind hearing is compressor surge that will eventually effect your turbo. If you are recirculating you should be able to adjust your BOV (assumign you have an aftermarket one since you were venting) loose enough to prevent any turkey.

 

[HeHateMe]

i'm using a turbosmart dual port BOV. I guess i will try to make it looser, so the turkey will be less. But how can it be compressor surge, when it happens when i'm not under boost. Answer me that?

 

[Dexter]

you cant be blowing anything off if youre not in boost, WTF ASS

 

[HeHateMe]

Have you seen the picture of it?!? ITS A BOV, that you take the horn side off, and put a plate over it. Then all you have is the port on the other side, recircing back into the intake. You can make it vent totally, or vent and recirc, or full recirc. But its a BOV captian technical, SUCK IT DRY!

 

[ChopstickHero]

Have you seen the picture of it?!? ITS A BOV, that you take the horn side off, and put a plate over it. Then all you have is the port on the other side, recircing back into the intake. You can make it vent totally, or vent and recirc, or full recirc. But its a BOV captian technical, SUCK IT DRY!

dexter is right, you don't blow off when you are in vacuum... you only blow off when you are boosting.

 

[HeHateMe]

so why is there louder turkey when i boost?

 

[gboromsp]

B/c the turbo starts building boost almost immediately. I'm guessing your turkey is much louder when in boost? The turbo is still spinning, its not like the compressor wheel just sits still until your boost guage shows you being in boost.

i'm using a turbosmart dual port BOV. I guess i will try to make it looser, so the turkey will be less. But how can it be compressor surge, when it happens when i'm not under boost. Answer me that?

 

[HeHateMe]

So is this a bad setup? I thought copying the stock setup would be the best. If this turkey is slowly causing issues to the turbo, then why are so many running this way?

 

[TX Speed Demon]

B/c the turbo starts building boost almost immediately. I'm guessing your turkey is much louder when in boost? The turbo is still spinning, its not like the compressor wheel just sits still until your boost guage shows you being in boost.

Exactly right. My BOV is fully venting. I only get turkey when NOT IN BOOST. If I am boosting and let off the gas, the change in vac pressure is enough to open the valve and release the air, thus no turkey.


When not under boost (but with the vac pressure between 10-0) the vac pressure is not strong enough to open the valve and release any air. The compressor wheel is still spinning even though I'm off the gas and that air still needs somewhere to go. If the valve doesn't open it goes backward. It's still air needing somewhere to go, it's just less air than when the car is in boost.

In your case (HeHateMe), the turkey is louder when boosting cause there is more air trying to force it's way through the same hole.

If you are running an aftermarket dual valve you probably have the same issues as me. It's very difficult to tune the BOV perfectly so it ALWAYS opens and closes at the perfect time. Just try to find the best compramise. I figure it's probably better to set the valve a little loose and get compressor surge at no or very little boost levels, than to set it too tight and get surge at high boost levels.

 

[CasopoliS]

Very good TX and others. This is exactly correct. Two valves is better than a dual valve IMO.
Right now I have BoostSciences BPV on hot pipe recirculating into intake, and I have the HKS SSQV on the cold pipe venting to atmosphere. Car runs great. I have the HKS loose enough to where changes in pressure cause it to open, even if in VAC. So if I rev it from 10vac to 1 vac then let off the gas I will hear the HKS release air quietly. This way I get NO turkey. You have to find the right point, because if you vent too much you will start to get stalling issues.

then again some people like turk but my car runs like hell with it.

 

[jeffmsp]

has anyone here ever had a problem related to the stock BPV cauing compressor surge eventually leading to a blown turbo? I think its fine, even stock the surge is there, its not like callaway didnt notice it, i think they just realized that it does so little harm so why bother putting in a more expensive unit.

 

[MOG BURKE]

So Could U Just Bipass An After Market Blow Off Vavle? If It's Been Installed Already? Tighten It Up And Diconnect The Vacum? U Know, Kind Of Like Being Stock But With Hard Pipes.