I know this prolly sounds stupid but I always wondered what makes that awesome Air/Hiss Sound when a Turbo Shifts Gears? I have a 2007 Cobalt SS s/c so I dont know much about Turbo's? Thanks

 

Blow off valve.

 

or bypass valve

 

because race car

 

are you asking about which turbo component makes the hissing sound when building boost?

 

its called the facepalm

 

blow off valve or bypass valve. they release the pressurized air between shifts when its not needed to extend the life of the turbo, if you didnt have that when you lifted off the throttle the throttlebody would close and the air would try to go back out of the turbo, which trys to spin it the wrong way and causes all sorts of damage if it happens enough and if it just barely happens then you just hear a lot of chirping noises...

 

ruined all the fun man...

 

i haz BOV PSSSSSSSHHHHHHHHHH!!!!!!!!!

AHHHHHHH!!!!!!!!!!! HKS!!!!!!!!!!

 

everyone starts at some point. 3 years ago i thought vtec was like having a turbo

 

this is what google/search is for though :shrugs:

 

It shouldnt go pssssshhhhhh if it does......your **** is about to blow up

 

Forge bpv does.

 

 

Actually this is EXACTLY what forums are for.

I only been here a month and I can't help but notice the amount of assholery that goes on when people ask honest questions. For real people, is it that difficult to be polite?

To answer the OPs question, its the bypass valve. Never be afraid to use the search funtcion but if you don't find what you're looking for that way, don't hesitate to post. Just ignore the rudeness.

 

i guess i been here too long and it has turned me into more of an ******* i spose...there has been a lot of trolling and uber noobs in the past made it hard to just give straight answers. noobs would post incorrect info and others would believe that over the "seasoned" members on here got real frustration/annoying

 

He lies... It's cuz racecar

 

Trust me, I hear you. As a member of many other forums, I too have experienced this. I find the best way to deal with it is to ignore and not reply or if I must reply, I give the answer and then show search results or at least mention the search feature in a polite way. Many people don't even realize there is one and the ones that do, don't know how to properly use it.

I didn't mean to attack you, I apologize. I just get frustrated when I see someone ask an honest question and then get crucified for it. My comment was meant towards everyone that had a smart ass comment that provided no help.

 

didnt take it as an attack, just splainin' myself

 

 

G m s c . N e t

 

yeah, winning

 

 

Thanks Man, I Appreciate your Sticking up for me, You know I just knew that their were gonna be some Dusche Bag Replies, Just because I dont know something that everone else takes as general knowledge. As I stated in my post I own a Cobalt SS s/c and know nothing about Turbos Aspiration....I'm learning quite a bit about my car and have made significant progress with Modding it, But for my next car I wanted to learn a little more about Turbo's, I'm thinking of buying one down the road. It's Rediculous that I cant even ask a question on here without others making you feel like an Idiot, When really its just that I'm new to modding cars.

 

ugh people who know, that have to be ass holes *facepalm*


and i got tired of gmsc about the time i had one of these newbie moments when i first got my car and put on a cai and asked why i could hear such an audible bov sound and the line (PCV) might have caused it.

then proceeded to get "omg, if you dont know. dont mod your car. ect. ect ect"

we all start somewhere i know 100 times more now and i will give people a hard time but will gladly pass on information. if you think they should use google or whatnot then dont post simple as that.

i thought these forums were to share knowledge not tell people to google ****