09 cobalt turbo flutter (vid included)

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01-15-2019, 12:54 AM

Robhuckell@gmail.com

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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

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01-15-2019, 06:32 AM

ECaulk

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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.

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01-15-2019, 09:36 AM

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Quote:

Originally Posted by ECaulk

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

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01-15-2019, 09:45 AM

ECaulk

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Originally Posted by Robhuckell@gmail.com

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.

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01-15-2019, 10:03 AM

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Quote:

Originally Posted by ECaulk

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

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01-15-2019, 10:37 AM

Snail_SS

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The forge wont really do anything to prevent flutter if anything it only changes the sound

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01-15-2019, 04:53 PM

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Quote:

Originally Posted by Snail_SS

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

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01-15-2019, 04:55 PM

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Quote:

Originally Posted by ECaulk

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

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01-15-2019, 04:59 PM

ECaulk

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Quote:

Originally Posted by Robhuckell@gmail.com

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

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01-15-2019, 10:04 PM

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^yep

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01-15-2019, 11:22 PM

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Quote:

Originally Posted by ECaulk

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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