The motor rotates the shaft ... and more failure points. Variable valve timing and lift has long been ubiquitous in internal-combustion engines, but these systems aren’t really all that ...

To many hardcore car enthusiasts, naturally aspirated engines are the most important hallmark of a proper driver's car. The ...

Variable valve timing has been available in cars for almost half a century, first appearing in the Alfa Romeo Spider as far ...

The defining characteristic of a two-stroke engine is to fire (combust) every time the piston is at top dead center. This makes them highly power dense, but also notoriously makes two-stroke engines ...

I have heard a fair number of negative comments on CVT transmission failures, life expectancy, etc. Proper maintenance is key.

drawing from the DIY knowledge of the HOT ROD team to learn more about how-to make more power from your engine, improve your suspension, make your brakes stop better, and much more. HOT ROD will ...

On episode 26 of Engine Masters, find out if you can stuff 25 psi of boost into a cast-piston, stock-crank short-block and have it live! Watch as David Freiburger, Steve Dulcich, and Steve Brule ...

Round 1: Fox Raceway, Pala, CA Highlights: Jett Lawrence, Haiden Deegan win Fox Raceway Round 2: Hangtown, Rancho Cordova, CA Highlights: Jett Lawrence, Haiden Deegan win Hangtown Round 3: Thunder ...

Our team has ranked the best Hybrids for 2025 based on our extensive test results. We test over 200 vehicles a year, so you can trust our ratings and reviews to help you buy the best Hybrid for 2025 ...