Compression in a diesel engine is essential for effective and efficient performance. And when compression is lacking, damage can result. That is why it’s imperative to know whether your engine’s ...

We may receive a commission on purchases made from links. While browsing auto repair and maintenance tools at your local parts store, you've likely come across compression testers like the Orion Motor ...

With every passing day the Mule provides opportunities beyond our original expectations. Since the 467ci engine belongs to HPP editor Tom DeMauro, it is at our beck and call. This affords HPP the ...

Compression: An automotive term used by everybody, forever. Let's get into some detail and maybe develop a better understanding. Pressure, and more pressure: It's a must-have to produce power within ...

While we like to think of 2002 as being part of a high-tech age, our beloved internal combustion engine hasn't really changed much in the last 50 years. We're still using pushrods and overhead valves, ...

Over the past year, we assembled two very mild small-blocks aimed at the typical hot-rodder looking for a solid street engine built on a budget. Once both engines were assembled, HOT ROD editor John ...

In my 53 years, I have destroyed a shocking number of engines. Some died from neglect of routine maintenance, some expired from old age and high mileage, and others suffered a failure of a critical ...

Russia doesn’t play, even when it comes to vehicle testing. After testing a tank’s strength by dropping it from a tower, it has now come up with an innovative way of verifying how powerful a new ...