cfm of air needed bu an engine ?

[Bruce Bell]

Make that displacement in ft3 /2 * rpm * VE

Where ft3 = displ in cc*.061/1728
VE is Volumetric efficiency Typically somewhere between .65 and .85
depending on the application
Note: VE changes through out the rpm range

Bruce

-----Original Message-----
From: quattro-admin at audifans.com [mailto:quattro-admin at audifans.com]On
Behalf Of Stephen Bigelow
Sent: Wednesday, April 24, 2002 12:12 PM
To: A4; quattro at audifans.com
Subject: Re: cfm of air needed bu an engine ?



> Does anyone know how to calculate the needed cfm  by a specific engine at
> specific RPM ?

displacement/2 x RPM