Bore and stroke do far more than define engine size. They help shape airflow, piston speed, torque delivery, and rev ...

Geely now holds a Guinness World Record for thermal efficiency, with its new i-HEV system rated at 48.4%, according to a ...

For 42 years, the XK was Jaguar’s secret weapon. It proved its worth on the racetrack and powered generations of cars. The ...

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 ...

Looking at 7 automakers with vehicles that are experiencing engine failures in 2026.

The engine can also run on synthetic methane, notes Brooke, making it adaptable to potential future fuels. Synthetic methane can be created as a sustainable fuel with CO2 and hydrogen in a process ...

Your old, reliable engine has been coughing up some strange, but concerning noises. So, you call your mechanic to find out what the problem and solution are to restoring its harmonious hum. But the ...

The KLR650's engine is a testament to understated reliability, delivering performance without feeling strained, making it a ...

All vehicles, from cars to trucks, have engine mounts. The primary function of this component is to keep the engine intact while you drive and protect it from vibrations and shocks. Additionally, it's ...

We ask an automotive engine calibration engineer how Chevrolet’s new 5.5-liter LT7 V-8 makes more than 1,000 hp. I instantly got a ton of questions from friends on both sides of the industry. Most ...

Rim-driven thrusters turn the normal propeller-motor arrangement inside out; rather than mounting the motor at the center of ...

The rotary was the most radical rethink of the combustion engine in over a hundred years — and it paid the price for being different. Mazda introduced the innovative Wankel rotary engine in the 1967 ...