Quote:
Originally Posted by egp
Is there a technical definition for drone? Is it due to a flow-induced resonance? Do the exhaust manufacturers ever make detailed measurements and perform engineering analysis of the acoustics, system vibration, and fluid dynamics? This is what I do for a living, albeit for underwater applications which are trying to do the opposite of most Camaro owners, i.e., be stealthy.
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Yes ... As you probably already know it's called resonant frequency, and everything in life has it. And yes the manufactures spend a ton of money in the research of their exhaust systems.