You’re Measuring Air All Wrong
Full Video Transcript
00:00 engines are often evaluated in cubic feet per minute because an engine’s displacement is a fixed volume specifically the volume of each cylinder combined and the RPM is what determines the rate at which that displacement is pumped so engines May pump volume over time but
00:16 CFM alone isn’t a complete view of airflow for example modern engines need to set air fuel ratios based on math not CFM and why is that well it’s because air has weight mass airflow is the weight of the air passing through your intake system engine and exhaust over time CFM is the
00:37 volume over time and math is the weight over time measuring by CFM is like having a 5 gallon gas can without knowing how much gas is in it this is Banks entry level presented by Amsoil the leader in synthetics
In this short video from the Banks series Entry Level, Special Projects Lead Erik Reider explains the function of a flowbench and its uses. This leads to the problem of evaluating air by its volume instead of its weight. He also explains how to hot-rod a flowbench to get accurate and relevant readings that correlate with measurements from parts tested on an engine. Watch the full episode here.
See how Banks applies precision to its performance parts with Banks Engineering Excellence for a deeper look at how the company ensures optimal airflow across all products.