Top 6 Cam Questions Answered - Pontiac Tech

The company's Tony McCurdy says flat-tappet grinds are still quite popular. "Flat-tappet lobe technology is constantly changing, and our Xtreme Energy series uses NASCAR-type technology. They perform very well and are our lead flat-tappet sellers. It seems that hydraulics are used for drivers or show cars where the owner wants a maintenance-free design, while solids are used in weekend warriors where owners are willing to trade valvetrain noise and a little maintenance for better exhaust sound and more horsepower and torque. Today's oil-related issues have really had an impact on flat-tappet camshafts, and we consider our No. 159 Break-In Lube a must for successful break-in."

Speaking specifically of the company's hydraulic-roller line, McCurdy says, "They are currently our most popular offering. We find our hydraulic-roller kits used in all types of applications, from daily drivers to weekend warriors. They offer more horsepower and torque over hydraulic and solid flat-tappet designs and typically improve throttle response and street manners. The fact that no break-in is required, they are unaffected by today's oil issue and that they are virtually maintenance-free contribute to their popularity."

Though solid-roller camshafts are typically associated with race-only applications, McCurdy says that Comp Cams offers a new line of solid-roller grinds designed for street use. "Our new solid-roller lifters can last quite a while on the street. These cams offer the most horsepower and torque but aren't for everyone or every application. They are typically more radical and require corresponding valvetrain components."

Conclusion
Having spoken with a number of highly credible sources so closely related to the hobby, we certainly have a better grasp on the development of Pontiac's original grinds, the combinations that the differing types of camshafts might be applicable in today, and the overall direction of current camshaft technology. While there's no doubt some of the comments we received are based on opinion, we're confident the information is still factual and can be applied to myriad Pontiac combinations, regardless of how mild or wild. So if you're considering a camshaft swap in your current Pontiac or looking to build an engine in the future, you might find the comments presented contain the exact answers you are looking for!