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      12-14-2011, 11:58 AM   #6

Drives: 335is
Join Date: Nov 2011
Location: DFW, TX

iTrader: (0)

Two types of flutter, I guess. One is when the spring rate of the BOV is too heavy and closes in the middle of a release event. The vacuum produced by the engine isn't sufficient to hold the BOV open.

You want one psssss on a throttle plate close not pss ps p (Those are technical sounds by the way)

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On the flip side too light a spring will cause the BOV to open a little bit while pressurized, letting off some of that precious compressed air. When logged would look like little spikes. /\/\/\/\/\

I think. Someone validate or tell me I'm retarded. Don't make fun of my graphs, I was up all night making them

Last edited by Calestus; 12-14-2011 at 11:59 AM. Reason: Graphs