Inlet Noise Comparisons

Resonator Design

Total System Acoustic Evaluation

· All components including intake manifold
· Evaluation using engine simulation (GT-Power)
· Accurate placement of resonators and 1/4 wave tuners

Radiated Shell Noise

· Generated by pressure fluctuations in induction system

Air Rush Noise

· Whistle noise from high velocity air-flow over orifice

Transmission Noise

· Valve train or base engine noise transmitted thru covers