Will a 9 h.p. gas engine be big enough to power this pump. What is the formula ? Thank You in Advance for your attention to this matter.
A: That depends on the pressure you want to generate continuously. The formula for driving a hydraulic pump with an electric motor is:
GPM x Pressure ÷ 1416 = HP. For driving with an industrial gas or diesel engine use 1100 as a divisor. For a general purpose gas engine use 900 as a divisor. Be aware of the RPM you want to drive the pump at, the GPM at that RPM, and the rated HP of the engine at that RPM.