Connecting Rod Physics

Certainly one of the most critical components inside an engine is one of the most stressed. Connecting rods take the power from the combustion...

Leaning the Mixture – Installing an adjustable fuel pressure regulator and an air-fuel ratio...

Horsepower doesn’t come cheaply or easily in Spec Miata. Sometimes it doesn’t come at all. First, the engines are tiny, measuring either 1.6 or...

As Complete As Possible: How To Do An MX-5 2.5 Swap

There’s a fair amount of content on the web about swapping a 2.5-liter engine into an NC chassis MX-5, which comes from the factory...

Shining A Light on the Black Art of Motor Oil Selection

Motor oil selection, particularly for performance and racing cars, seems to be a “black art.” Most people rely on manufacturer guidelines, recommendations and past...

Cooling System Facts and Upgrades

As the name suggests, an internal combustion engine creates heat. The enormous potential energy from a few droplets of gasoline compressed and mixed with...

Reducing Engine Friction

Here are a couple of statistics that will blow your mind. Up to Eighty percent of the friction in a reciprocating piston engine stems...

Replacing a Miata Fuel Pump Sock

We all have read time and again that oil is the lifeblood of an engine, but without fuel, the engine doesn’t run, and if...

Pulling Less Power – New test equipment uncovers excess horsepower loss in power steering...

We’d all like to enjoy the benefits of power steering, but with none of the weight or horsepower draw, right? Since that’s not possible,...

Heart of the Matter: Installing an Engine in a Spec MX-5

The third-generation Miata, the NC, has an unfortunate reputation. Seen as the only chubby member of an athletic family, it bears a heavy load....

Under Pressure – an Inside Look at Oiling Systems

One of the first gauges we look at while we’re racing is oil pressure. Without sufficient oil pressure, your engine is at risk for...

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