Throttle Body Cfm Calculator
Throttle Body Cfm Calculator . Engine size (cid) is the measurement in inches of the size of your engine. Having a throttle body too big can hurt overall performance. Throttle Body Size/CFM/Supports x Horsepower Chart Ford Truck from www.ford-trucks.com Throttle bore diameter recommendations for venturi diameter selections: Looking at your task, at some point you will need to convert from cfm to scfm. Use to determine how large a carb or throttle body to run engine displacement (cubic inches only):