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whats the general thought on installing dv's "upside down"?

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Old 09-11-2006, 11:32 AM
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whats the general thought on installing dv's "upside down"?
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Old 09-11-2006, 11:33 AM
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flip them around
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Old 09-11-2006, 11:33 AM
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Default I have a hard enough time just doing a head-stand, let alone installing stuff at the same time.
;p
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Old 09-11-2006, 11:34 AM
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Default Don't do it. If your N249 fails with the DV's installed correctly, they will still open with a
boost spike (chopping the throttle at full boost). Installing them upside down will keep full boost all the time, unless vacuum is applied to the valve. As long as the N249 is going to manifold pressure, the DV's will stay closed.
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Old 09-11-2006, 11:35 AM
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Default this is incorrect orientation
<center><img src="http://pictureposter.audiworld.com/68919/incorrect_dvs.jpg"></center><p>
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Old 09-11-2006, 11:50 AM
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Default i have deleted my n249. Why would there be such a problem? I know Dahlback tells you to install
there dv's :upside down...?
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Old 09-11-2006, 11:53 AM
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They do?
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Old 09-11-2006, 11:54 AM
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pretty sure
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Old 09-11-2006, 11:56 AM
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Default Not an issue with OEM style. There is a lip around the diaphragm that will allow boost
to lift it up even if the valve is installed with the face of the diaphragm facing the low pressure side of the intake.
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Old 09-11-2006, 11:56 AM
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No silly, you turn the car over to install ;P
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