A tool exists that estimates the horsepower potential supported by a given fuel pump. This tool utilizes parameters such as fuel pump flow rate, fuel type, the number of fuel injectors, and brake specific fuel consumption (BSFC) to generate an estimated maximum horsepower value. For example, if a fuel pump has a flow rate of 255 liters per hour and is used with gasoline fuel in an engine with a BSFC of 0.5, this estimation tool can determine the approximate power level that fuel pump can support.
The application of such a calculation is significant in engine performance tuning and modification. It allows engine builders and tuners to accurately size the fuel system to the engine’s needs, preventing fuel starvation, which can cause engine damage. Historically, fuel system sizing was based on rudimentary estimations and safety margins. The availability of more precise tools has reduced the risk of both under-fueling and over-fueling, leading to more efficient and reliable engine performance.