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-   08-10 SS Turbocharged General Discussion (https://www.cobaltss.net/forums/08-10-ss-turbocharged-general-discussion-152/)
-   -   09 cobalt turbo flutter (vid included) (https://www.cobaltss.net/forums/08-10-ss-turbocharged-general-discussion-152/09-cobalt-turbo-flutter-vid-included-327306/)

Robhuckell@gmail.com 01-15-2019 12:54 AM
09 cobalt turbo flutter (vid included)
 
my 2009 cobalt ss turbo with a k&n drop in and stock bpv has a lot of flutter when I let off and I just wanted to make sure it’s normal, I don’t have any flutter while on the throttle just when I am off the gas, just wanting to make sure this is normal

ECaulk 01-15-2019 06:32 AM
as long as it's off throttle don't worry about it to much. It sounds like the normal bpv letting air out, but it's hard to hear it really well on that video.

Robhuckell@gmail.com 01-15-2019 09:36 AM
Originally Posted by ECaulk (Post 7705909)
as long as it's off throttle don't worry about it to much. It sounds like the normal bpv letting air out, but it's hard to hear it really well on that video.
okay thanks, just wanted to make sure it wasn’t surge

ECaulk 01-15-2019 09:45 AM
Originally Posted by Robhuckell@gmail.com (Post 7705921)

okay thanks, just wanted to make sure it wasn’t surge
When surge happens at full load it is a problem, otherwise don't worry about it.

Robhuckell@gmail.com 01-15-2019 10:03 AM
Originally Posted by ECaulk (Post 7705924)
When surge happens at full load it is a problem, otherwise don't worry about it.
okay, in the near future I’m going to get a forge bpv

Snail_SS 01-15-2019 10:37 AM
The forge wont really do anything to prevent flutter if anything it only changes the sound

Robhuckell@gmail.com 01-15-2019 04:53 PM
Originally Posted by Snail_SS (Post 7705932)
The forge wont really do anything to prevent flutter if anything it only changes the sound
I kinda want my recirculation sound to be louder but I don’t want to have to spend the money on a chargepipe and bov so hopefully the forge bpv will tide me over till I can afford a bov

Robhuckell@gmail.com 01-15-2019 04:55 PM
Originally Posted by ECaulk (Post 7705909)
as long as it's off throttle don't worry about it to much. It sounds like the normal bpv letting air out, but it's hard to hear it really well on that video.
I have another video of when i had my phone under the hood to show my buddy, I could upload it if this one isn’t loud enough

ECaulk 01-15-2019 04:59 PM
Originally Posted by Robhuckell@gmail.com (Post 7705961)

I kinda want my recirculation sound to be louder but I don’t want to have to spend the money on a chargepipe and bov so hopefully the forge bpv will tide me over till I can afford a bov
Get an intake, that will make it way louder

63 Nova SS 01-15-2019 10:04 PM
^yep

Robhuckell@gmail.com 01-15-2019 11:22 PM
Originally Posted by ECaulk (Post 7705963)
Get an intake, that will make it way louder
I have a k&n typhoon that shipped this morning! The point of this thread was just to make sure what I was hear was indeed flutter and not compressor surge before I started throwing my dp and catback along with an intake on then a 94 octane tune!


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