You've probably read this line a dozen times: "It's never been easier to make horsepower than right now." While that's true, it also means everything else in the engine is now more highly stressed.

Obviously, these valve-control-related issues, associated with insufficient valvespring pressure, are the reason why camshaft manufacturers offer valvespring upgrades. The obvious answer might seem to ...

Thermostatic expansion valves (TXVs) come in many different shapes and sizes. Although they all are designed to control the superheat value of the refrigerant leaving an evaporator, there are some ...