The mind-bending world of birotary engines - a hybrid of piston and rotary technology that could revolutionize aviation. But ...

Everyone generally knows about piston and rotary engines, with many a flamewar having been waged over the pros and cons of each design. The “correct” answer is thus to combine both ...

To sleeve or to bore your engine block? That's the several-hundred-dollar question (maybe into the thousands) as you ...

Piston ring end gaps matter more than you think because they manage pressure and heat, preventing catastrophic failures ...