Air Intake Noise

The air intake system performs four main functions:

Channel air to the engine

Preferably cold air. Therefore, orifice best placed in the main airstream e.g. front of engine bay, behind headlamp unit.

Filter particulates

The filter element needs to be large enough to filter the required volume of air and achieve necessary service life.

Dynamic performance tuning

The length of the pipes (ram pipes) connecting the valve face to the plenum are tuned to improve the engine breathing at the desired engine speed.

Reduce noise

Pulsating noise is produced as the engine draws air in (intake noise) for the combustion process.

See also: Acoustic Filter Elements, Air Intake Manifold.