Is that what it's actually called?
Do they make one for our cars?
Does it serve any performance purpose?
Is it actually a real part?

I know cars and I'm not stupid when it comes to engine stuff(I used to be a mechainc), so I'll understand whatever you tell me. I know more about turbo's and all the internals with those and I've just always been curious about this part. I just want a loud "wooooosh" when I shift, even if it has no performance purpose.

 

http://www.takakaira.co.jp/accessori...ightpager.html

 

not on our superchargers i dont believe. sry.

 

All I have to say is zip up your flame suit and use the search button.

Here: https://www.cobaltss.net/forums/forced-induction-50/bov-supercharged-gto-56819/

and no they would serve no purpose and have no benefit if you could even get it to work.

 

Search button FTMFW!!!

People will never learn.

 

^^^what he said. Roots type no blowoff, Centrifugal blower has a blowoff
but stand by for the flames...lol

 

Well if people want to "flame" me for asking a question that I don't know something about, that's pathetic. What's the point of having a forum if you can't ask a question without having to worry about asshats making fun of you. That's pretty f'n stupid if you ask me.

 

I agree... The people on this forum are really starting to wear on me - I don't even post, I just watch things happen.

 

Hahahha Doess Anyone Have That Fake Blow Off Valvee Electronicc Thinggieee

 

The ones that flame are probably tired of seeing people ask about bov on superchargers and not searching first. BOV's are only on turbo and centri supercharger not on roots.

 

They design of our enter intake has i guess you could say an "internal" bov. When we let off the gas a secondary valve opens just before the air is compressed (just before the air goes into the super obviously) acting as a BOV, expect in our case, the air that would normally get blown off goes right thru the super again.

 

Is that what it's actually called? Blow off valve

Do they make one for our cars? No ours are internally

Does it serve any performance purpose? Not really the bleed off the air from the turbo or centri super. There are two ways it is done either atmospheric which you will hear or recycled which then you won't hear.

Is it actually a real part? Yes

 

Im glad someone pays attention to this **** lol jk

 

Talk to carter w/ TNT. He's done it on a SS Cobalt.

 

agreed..

 

oh hell no.............

 

Blow-off valves on either a turbo or blown car don't serve any performance purpose anyway. The only reason they exist is to prevent compressor surge on turbo cars. Thats when the pressurized air that the turbo produces slams onto the the compressor blades after the throttle body plate closes, which can cause damage. The BOV gives that pressurized air a way out of the system. The only other purpose they serve is if you get an adjustable BOV you can adjust it to hold pressure longer in the charge pipes and not blow it off as easy, which helps for spool up times when racing.

 

X2, yes there is a search button but hey look up at the forum title. technical discussions, thus asking questions. not a flame forum. not everyone is going to know everything, the way to learn is ask questions. the smartest people i know knew nothing till they asked questions. those are the people making 200,000 a year. =). so dont be an ass, just answer nicely

and as for your question.. i agree with the other people on here that did answer, it wont work. would be cool tho =)

 

agreed just didnt feel like going into a detail writing lol

 

Going along this this....

Purpose of a BOV:
To expel excess pressurized air from the intake on a turbo charged (or cent SCd) vehicle when the engine doesn't need it. Basically think of it this way, you have pressured air in teh in intake, you let off the throttle, the throttle plate closes. If you don't expel that air what happens? With out a BOV, the air has 3 places it COULD go, back through the charger (NEVER GONNA HAPPEN), through the throttle plate (and I mean THROUGH) or out the intake (as in through the side of it). Basically you destroy stuff (if your running very high boost levels) with out it... no performance gain, just a safety machanism.

Now, there are two types of BOV setups.
1) BOV to atomsphere. This is the commonly heard 'pppsssttt' sound you fan boys love. It is usually located before the mass air pressure sensor, before the throttle plate, after the turbo. It expels the extra pressue the engine doesn't need to the ambient air. Because the ECU hasn't seem the air move past it yet, expelling to atmosphere doesn't matter.
2) BOV before the turbo. This isn't as noticeable of a sound. It is usually located before the throttle plate, after the turbo, after the mass air flow sensor. Now, you can't dump the air to the atmosphere, because the ECU has already seen the air enter teh system through the MAF. If you dump to atmosphere, you could over fuel the engine.

Now that that's been cleared up, on our roots type blowers we have a system similar to BOV #2, except it's a valve. The SC doesn't dump the excess air, it just let the air move infront of the compressor under light load, although it's after the throttle plate. We can't dump to atmosphere because just like BOV #2, we'd over fuel the engine. Now this bypass valve serves many other purposes too, but I don't want to hi-jack this thread too much. Basically it allows the blower to run with out compressing air (in turn robbing power from the engine) under light load.

Now there are other details I'm either adding in or leaving out to try to simplify this, so don't jump on me because your TC or SC setup isn't quite like this, or you've seen something different.

 

the reason your going to get flamed or anyone is going to get flamed is when the question has been asked 100000000000000000000000000000000000000000 times before...

 

people flamed you because you didn't search, and this topic has been covered infinity times. if you had a legit quesiton, people wouldn't have flamed.

 

Yes this is a forum designed to answer questions. However, think about if every say 2 weeks you see a question about blowoff valves for the same FI setup it gets really annoying. Nothing personal against you and I think its cool you want to learn but, this website is no different than google, ask, or any other search engine. What do you do when you want to find something on the net? You use a search engine right. Just letting you know why people may flame you a bit

 

as much as i agree with you with that but some people just come on just to ask a question and they run by this website you know what people should'nt bash anybody because it even happens if the same question is'nt asked but hey thats just me man and don't feel bad bro i asked the same question before

 

damn what he said you should feel bad.... just j/k.
You know I gotta give you crap Cesar