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?

no one?

Every turbo car I've ridden in makes some flutter at -10 to ~2psi :dunno:

flutterdump? What fagatron came up with that one.

ohh then I guess its normal eh?


STI fagatrons I suppose

Some running 5-6psi dont even run bov

"Synapse" is well known for making up marketing crap for their Chinese built shit 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.

Had to do a video:giggle:

flutterdump sounds like a bad rap song.

do you have both vacuum lines hooked up?

yes, I do.

To the same place? One needs signal from before the Tbody and the other needs mani presure.

I just took a big ass flutterdump at work. Stank up the whole bathroom

This fat bitch was walking into my office and her flutterdump was haning over the sides of her pants. I was totally grossed out.

Last night I plugged hustlers flutterdump