Jeffrey Soule runs a trucking company that hauls, among other things, Poland Spring bottled water from a facility west of Portland, Maine. Not long ago he accompanied a driver into New York City with ...

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 ...

The scenario goes something like this. Our LS3 used to rev freely and make power all the way up through 6,800 rpm, but now it struggles to get to 6,000 and power is definitely down. After a thorough ...

When designing helical or compression springs, you’ll confront several challenges and trade-offs, especially when it comes to getting the best possible performance from the wire. You will want to use ...

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 ...