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964 Resonant Intake
Has anyone (and I'm sure someone has) experimented with the resonant intake manifold on the 964 engine. I have searched for this information on the web and found nothing much about it except that the flapper valve in the connecting tube opens at 5500 rpm. If one of you can elaborate on this, or point me to an explanatory web site I would appreciate it. My main questions are:
What happens, seat-of-pants-wise, when it opens. Can you feel it?
Was this done as a performance enhancement or for emissions? Or for both since they're somewhat intertwined.
What are the detrimental effects of not having it.
The reason for all of these questions is that because of it's airflow characteristics I am thinking of using this intake on another project that may not have the capability of actuation the valve. In that case should it be blocked open or blocked closed?
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