An engine with no crankshaft, where the pistons float on air? It’s not a dream; it’s a free piston engine and it might be the next major advance in car tech. When we think of automotive technology of ...

Give them the results of a TDC valve-drop static clearance test, and Comp Cam's techs can calculate the piston-to-valve clearance for any of its cams at any degree of rotation. This is especially ...

Cam lift and timing can put the valves dangerously close to the piston. We show you how to check the clearance In all but most the mild engine builds, taking extra time to check piston to valve ...

Transitioning from jets to piston aircraft, a rarely discussed topic, reveals a significantly increased pilot workload and requires a different operational mindset. Piston planes demand more active ...

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If asked what you wanted for piston rings in your engine build, would you know how to answer? Piston rings have the most important job in your engine. We will get arguments on this one because there ...

Within the world of AR-style rifles, piston-driven guns offer the promise of a cleaner and cooler-running operating system; but regardless of their potential advantages over the traditional direct-gas ...