Worldwide, Honda enthusiasts invest hundreds, if not thousands of dollars on their powerplants to extract the utmost in power and reliability. Whether they opt to keep their Honda naturally aspirated, ...

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 ...

Four-stroke engines, which make up 99% of vehicles on the road, rely on a system for managing air intake, compression, ...

We're always on the lookout for new stuff, so when information on Comp Cams dual conical valve springs came across our desk, we were eager to take a look. Comp introduced these dual conical springs in ...

Car magazines are full of 1,000-horsepower LS engine stories teeming with superchargers, turbochargers, intercoolers, massive loads of nitrous, race gas, and all sorts of glamorous equipment. While ...

The Center for Auto Safety is raising questions about the effectiveness of a valve spring recall issued late last year by Toyota Motor Corp. and Subaru Corp. after complaints emerged about engines ...