Let's begin with the fundamentals of mixing air and gasoline for the purpose of producing power. (Rudolf Diesel's compression ignition is a different thing entirely. We'll touch on it briefly in what ...

In Part One of this series (January '93), we discussed how an internal-combustion engine heats a fuel-and-air mixture to convert it into mechanical energy. In February, we reviewed how a four ...

FIGURE 1—Here's the relationship between air flow through a venturi and how atmospheric pressure "pushes" fuel into the air stream. At the vena contracta, actual pressure is at a minimum (maximum flow ...