Induction Formulas and Helpful Sites

• Average_CSA = Port_Volume_CC / (Port_CenterLine_Length * 16.387)
• MIN CSA = (Bore x Bore x Stroke x RPM x .00353) / 613.8 (.55 MACH)

• Port_Volume_CC = Average_CSA * Port_CenterLine_Length * 16.387

• Port_CenterLine_Length = Port_Volume_CC / ( Average_CSA *16.387 )

• FPS = ( Flow_CFM * 2.4 ) / Average_CSA

• Flow_CFM = Average_CSA * FPS * .4166667

• Average_CSA = ( Flow_CFM * 2.4) / FPS
• cfm demand = cid x rpm x .0009785 / # of cylinders
• Bernoullis Principle​
• Pipemax
• Wallace Calculators
• Stan Weiss Cylinder Head Flow