08-07-2014, 08:37 AM
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#1 (permalink)
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Quote:
Originally Posted by 40 to 332
... Does anyone know what the Nissan engineers were thinking? What is gained by having the multiple baffles? Are they meant to reduce noise … catch debris … whatever??? ...
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IIRC, those are to tune the intake ducts and reduce pulsations in the air flow. Same basic principle as partially closing your windows to eliminate thrumming in the cabin. But my memory ain't what it used to be, so that take with a grain of salt; check the FSM for more info. Going by my past experience with gas flow measurement, I'd guess they don't do much until you reach higher flows.
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