High volume electronic fuel injection system

A system for controlling electronic fuel injection for an internal combustion engine, comprising:

• an electronic control unit (ECU) having a microprocessor, memory, an output configured for transmission of a variable control signal, and an input configured for receiving a feedback signal, the memory storing a program executable by the microprocessor;
• the program configured to generate an optimal fuel flow value as a function of (1) an operator-specified air-to-fuel ratio written to the memory and (2) an operator-specified ratio of a first fuel density to a second fuel density, written to the memory;
• and
• the ECU configured to vary the output of the variable control signal until the feedback signal matches the optimal fuel flow value.

A method for optimizing fuel flow in an internal combustion engine, comprising:

• specifying, for a fuel mixture comprising a first fuel and a second fuel, a ratio of the density of the first fuel to the density of the second fuel;
• specifying a ratio of density of air to density of the fuel mixture;
• sensing air flow to the engine;
• calculating a fuel flow value as a function of (1) the ratio of the density of the first fuel to the density of the second fuel, (2) the desired ratio of density of air to density of the fuel mixture, and (3) the sensed air flow;
• and
• adjusting flow of the fuel mixture through a variable flow valve to match the calculated fuel flow value.