Air Box air Chamber????

[helipilotxtz12]

Any one know what the air box air chamber is all about. I know on cars its there to cut down on intake noise but it also causes unwanted air turbulence. Any one have any Ideas?

 

[~TABASCO~]

Equalize pressure with the use of the 270* crank ?

 

[Don in Lodi]

Stable air pressure, stable temp.