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      04-05-2018, 09:13 AM   #30
rjd_F30
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Drives: 2013 335i 6MT
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Quote:
Originally Posted by lonecitizenfour View Post
Where does the valve flutter come from? That noise sounds exactly like compressor surge... is there another part that is a fan somewhere and has air hitting from the blowing side (i mean even if that's not turbo, it can't be good no?)

Thanks
that's kind of what I was thinking. I know compressor surge is no good, but that's the flutter you hear on supras and the like. if the DV+ causes this, then I'm definitely going to avoid it. but if not, like you asked, where is this flutter coming from? what valve, the diverter valve?
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