An engine relies on two things to run: spark and fuel. Sure, there are a million other things to consider when speaking of engine operation and power, but regardless of the type, size, or brand of ...

Leaning the mixture is an underutilized technique for pilots to significantly improve fuel economy, extend flight endurance, and prevent engine issues like spark plug fouling. Proper leaning optimizes ...

Each year, your tech editor spends one full week in January at a gathering called the Motorsports Parts Manufacturers Council Media Trade Conference. Held in Los Angeles, MPMC gives members of the ...

In our marine business, after effecting a repair, we are often asked, “Can you take a look at my fuel gauge too? It’s not working.” It’s a familiar story. Here’s how to troubleshoot yours. The sending ...

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 ...

Fuel gauges are fairly simple mechanisms. They point to “E” when the tank is nearly empty and “F” when it’s full. At least, until it doesn’t. Then you’re left in the dark, guessing how many miles you ...

Question: Why are legacy aircraft fuel gauges notoriously inaccurate? Answer: It is the combination of multiple things—corrosion, latency, and time. There is always trace amounts of moisture in fuel, ...

Why are some fuel gauges and fuel-range indicators sometimes so inaccurate they leave riders stranded with an empty tank far from a service station? In fact, often the more hi-tech, sophisticated and ...

This is kind of a difficult concept to describe, but I love wonderful things that are at least on some level ridiculous. I love things that show incredible levels of thought and innovation, but for ...