Possible to adjust noise on Synapse BOV?

domrep · 04-23-2011, 05:42 PM

Anyone know if this is possible? To make it louder or quieter? Obviously this would affect boost but just wondering if its possible

Constant.S · 04-23-2011, 05:46 PM

You can only make it quieter. Get the recirculating Kit and turn it from VTA to a recirculate BOV.

domrep · 04-24-2011, 01:14 AM

I see. I know for the tial/hks you can play with different springs to adjust the valve...was hoping for something similar with the synapse.

domrep · 04-24-2011, 01:38 PM

anyone with the synpase can comment on the sound? Can you hear it inside cabin or on normal cruising shifting?

TommyLights · 04-24-2011, 02:05 PM

You can always hear it, mostly very soft in normal driving....if you stomp on the gas and you have a stick shift, you will get that loud blow off sound...if you have auto, you won't hear much.

domrep · 04-25-2011, 10:41 AM

Can you hear this inside the cabin noticeably under high load? I never can...only when I open the windows. Might be scared that I'm leaking boost but my gauges don't seem to be showing that...

SlickShift · 04-26-2011, 07:56 PM

I have the synapse BOV and during normal driving with music on I don't even hear it (or maybe just tune it out by now).

onebadmofo · 04-26-2011, 07:59 PM

Tape a whistle on it?

04-23-2011, 05:42 PM	#1
domrep Captain 43 Rep 993 Posts Drives: AW E93 335i Join Date: Mar 2009 Location: Toronto iTrader: (3)	Possible to adjust noise on Synapse BOV? Anyone know if this is possible? To make it louder or quieter? Obviously this would affect boost but just wondering if its possible
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04-23-2011, 05:46 PM	#2
Constant.S Resistance is futile... 58 Rep 640 Posts Drives: BMW Z4 E89(N54) Join Date: Nov 2010 Location: Greece/Canada iTrader: (0)	You can only make it quieter. Get the recirculating Kit and turn it from VTA to a recirculate BOV. __________________ An ounce of performance is worth pounds of promises.
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04-24-2011, 01:14 AM	#3
domrep Captain 43 Rep 993 Posts Drives: AW E93 335i Join Date: Mar 2009 Location: Toronto iTrader: (3)	I see. I know for the tial/hks you can play with different springs to adjust the valve...was hoping for something similar with the synapse.
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04-24-2011, 01:38 PM	#4
domrep Captain 43 Rep 993 Posts Drives: AW E93 335i Join Date: Mar 2009 Location: Toronto iTrader: (3)	anyone with the synpase can comment on the sound? Can you hear it inside cabin or on normal cruising shifting?
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04-24-2011, 02:05 PM	#5
TommyLights Colonel 221 Rep 2,602 Posts Drives: Man Join Date: Jul 2010 iTrader: (12)	You can always hear it, mostly very soft in normal driving....if you stomp on the gas and you have a stick shift, you will get that loud blow off sound...if you have auto, you won't hear much.
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04-25-2011, 10:41 AM	#6
domrep Captain 43 Rep 993 Posts Drives: AW E93 335i Join Date: Mar 2009 Location: Toronto iTrader: (3)	Can you hear this inside the cabin noticeably under high load? I never can...only when I open the windows. Might be scared that I'm leaking boost but my gauges don't seem to be showing that...
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04-26-2011, 07:56 PM	#7
SlickShift Lieutenant Colonel 331 Rep 1,805 Posts Drives: '11 BMW E90 M3 ZCP, '21 X5 ZMP Join Date: May 2007 Location: Atlanta iTrader: (7)	I have the synapse BOV and during normal driving with music on I don't even hear it (or maybe just tune it out by now). __________________ -Nick 2018 BMW 440i - M Sport, Exec Glacier Silver Metallic/Coral Red Dakota Retired: '00 323i, '06 325Ci, '09 135i, '06 Z4M Roadster, '93 525i, '76 2002, '14 X1, '14 M235i, '16 X4, '16 435i
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04-26-2011, 07:59 PM	#8
onebadmofo Colonel 353 Rep 2,394 Posts Drives: 2008 E90 M3 Join Date: Aug 2010 Location: Central NJ iTrader: (14)	Tape a whistle on it?
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