At its most basic level, an engine is an air pump. Internal combustion engines breathe fresh air and expel wasted exhaust gases to make power. Something has to tell those intake and exhaust valves ...

Despite the systems approach to engine components, classic hot rodding is still a mix 'n' match affair. While choosing the right pieces is important, ensuring they work together properly is even more ...

A camshaft can be a huge performance component for an engine-many people know this. Cam lobe design is often regarded as a black art. Many who have mastered it prefer it that way to keep people from ...

One way to improve diesel engine performance and to reduce emissions is improving power density and combustion cycle efficiency. It can be done by increasing combustion pressure and engine speed ...

BLOOMFIELD, Connecticut—Jacobs Vehicle Systems has begun demonstrating two new technologies designed to help fleets and OEMs meet federal 2027 emissions targets. Just outside of Hartford, Connecticut, ...

Your doctor will tell you that stress kills. The same is true for high-performance engines and it’s a safe bet that if your engine is running aggressive valvesprings and stud-mounted rockers, there’s ...