Turbulent jet ignition from racing helps Jeep's new 2.0L engine deliver 324 HP with improved efficiency in the Grand Cherokee ...

Hyundai figured out continuously variable valve duration in a production vehicle (or at least one about to hit production). increase in performance of 4 percent with 5 percent better efficiency, along ...

Peugeot is doubling down on small-displacement gasoline engines even as the broader industry shifts toward electrification, ...

Ducati has announced it will introduce new engine technology that will boost power and torque, improve fuel economy, reduce emissions and won’t affect servicing intervals. Ducati Testastretta engine ...

With the rise of stricter emission laws, engine manufacturers have no choice but to look into alternate energy sources to run their vehicles. Cummins is reinventing the combustion engine but this time ...

Peugeot buries the troubled PureTech with a new Turbo 100 engine, a 70% redesigned 1.2L unit built for reliability as EVs ...

Intake, compression, power, then exhaust. Every 4-stroke engine ever made – about 80% of all engines currently in existence – function on this principle – even rotary engines. But now, Porsche has ...

A better mousetrap? Even now, as electrification seems poised to end the internal combustion engine’s long run as the transportation motivator of choice, enterprising tinkerers continue to propose ...

NOTE: With this issue of HOT ROD, your Shop Series begins a slightly different and more comprehensive approach to the discussion of engine and vehicle basics. In the coming months, you'll find a frank ...