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Old 06-26-2010, 05:43 PM   #1
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Default Compressor surge? Flutterdump? ? ? ?

I have a ebay "greddy" Type RS BOV and I just had MS installed so with the IAT in, we took off the AFM and there was compressor surge. I adjusted the nut on the BOV and tried to loosen it as much as possible, no luck.

I then took out the BOV and took it apart and took off the inner spring and left the outer spring in. I then put it all back together. Now there's flutterdump. Went around the block multiple times adjusting the screw and ended up at it's softest point. Still flutterdump. Like this:


but the delay is not as long.

I notice it only happening at lower RPMs, while the BOV make a "pew" sound. At higher rpm and when boost is around 6psi and up it makes a loud WHOOOSH sound, all bov no surge/flutter (sounds almost identical to the video around 0:50 sec)

My question is do I need a bigger/stiffer spring or smaller/softer?

I have yet to try to "inner spring" which is smaller, but just thought I'd ask anyways.

Any input?

Last edited by caideN; 06-26-2010 at 08:19 PM.
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Old 06-27-2010, 02:28 PM   #2
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no one?
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Old 06-27-2010, 02:36 PM   #3
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Every turbo car I've ridden in makes some flutter at -10 to ~2psi

flutterdump? What fagatron came up with that one.
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Old 06-27-2010, 02:46 PM   #4
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ohh then I guess its normal eh?


STI fagatrons I suppose
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Old 06-27-2010, 02:53 PM   #5
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Quote:
Originally Posted by caideN View Post
ohh then I guess its normal eh?


STI fagatrons I suppose

Some running 5-6psi dont even run bov
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Old 06-27-2010, 02:53 PM   #6
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"Synapse" is well known for making up marketing crap for their Chinese built **** sold as an answer to a problem that no one has.

Its also really easy to put a lighter spring in and have the valve open faster...and in vacuum to suck in dust.
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Old 06-28-2010, 09:38 PM   #7
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Had to do a video
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Old 06-28-2010, 10:01 PM   #8
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flutterdump sounds like a bad rap song.
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Old 06-28-2010, 10:21 PM   #9
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do you have both vacuum lines hooked up?
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Old 06-28-2010, 11:30 PM   #10
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Quote:
Originally Posted by Gotpsi? View Post
do you have both vacuum lines hooked up?
yes, I do.
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Old 06-29-2010, 02:19 PM   #11
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To the same place? One needs signal from before the Tbody and the other needs mani presure.
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Old 06-29-2010, 02:57 PM   #12
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I just took a big *** flutterdump at work. Stank up the whole bathroom
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Old 06-29-2010, 03:37 PM   #13
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This fat bitch was walking into my office and her flutterdump was haning over the sides of her pants. I was totally grossed out.
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Old 06-29-2010, 04:09 PM   #14
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Last night I plugged hustlers flutterdump
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Old 06-29-2010, 06:13 PM   #15
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