If ever you've had to choose the right camshaft for your engine you understand how tricky it can get. It boils down to knowing what you want the engine to do and how the vehicle will be driven most of ...

Diesel engines are different from gas engines in numerous ways, including their use of high compression ratios. Here's why ...

GM has filed a patent application for so-called “Multilink Cranktrains with Combined Eccentric Shaft and Camshaft Drive System for Internal Combustion Engines.” The system is designed to provide ...

In the interest of preserving hot rodding history, we frequently republish old stories simply for the fun of it, but in cases like this camshaft technical overview from three decades ago (“Choosing ...

It's appropriate, we think, that a camshaft has lobes, since this relatively simple device is so often called the brains of an engine. And indeed, a camshaft does direct several engine functions in a ...

When it comes to upgrading small-block engines, camshafts are a popular choice for enhancing performance. Different camshaft types can significantly alter how an engine breathes and performs, offering ...

The ability to vary an engine's compression ratio has been a "holy grail" quest of engine engineers for decades, because "one size" of compression ratio cannot possibly fit all the operating ...

For more than a century now, automotive engineers have struggled with an unavoidable balancing act when it comes to engine compression. Now, thanks to an innovation from Infiniti, they may get to ...

Chalk this one up to wild. General Motors has filed—and been approved—for a patent detailing a super high-compression, turbocharged and supercharged hybrid powertrain. Immediately, we think this kind ...

Heavy duty diesel engines are designed for long hours and extreme loads, but even the toughest systems fail without early ...

The latest General Motors patent underscores how busy the automaker's powertrain engineers have been. The automaker received a patent approval for a high-compression, twin-charged hybrid powertrain in ...