Pro Series B-Series DOHC VTEC

Skunk2 Pro-Series professional line of racing cams are designed to optimize mid-range and top-end HP and TQ; and significantly reduce lap times. VTEC crossover is seamless allowing for the broadest possible powerband. No other line of racing cams can even come close to the performance of the Pro-Series line. Pro-Series patent pending camshaft profiles dramatically improve horsepower, torque, engine response, and valvetrain stability. The Pro 1 cam is the BEST ALL-AROUND STREET CAM and dramatically improves horsepower, torque, engine response, and valvetrain stability. Pro-Series camshafts feature a seamless crossover between low and high speed cam lobes with patent pending profiles defined by specific lobe shapes as well as specific characteristics of lift, velocity, and acceleration. Pro-Series cams are all designed utilizing Skunk2’s proprietary Fast Ramp Technology and Amax Technology. Use of these two technologies allows us to design aggressive camshaft profiles that maximize area under the valve lift curve without adversely affecting valvetrain stability or reliability. In fact, the use of Fast Ramp and Amax Technologies actually makes Pro-Series camshafts more stable and less prone to spring surge at high rpms. Pro-Series camshafts also feature our newly revised camshaft blanks that have increased torsional strength, improved durability characteristics, and reduced frictional effects; all of which are the reasons why Pro-Series camshafts are superior to all other cams. Pro-Series camshafts are available in Pro 1, Pro 2, and Pro 3 designs.

Skunk2 Pro-Series professional line of racing cams were designed to optimize mid-range and high-rpm HP and TQ; and provide a seamless transition from the low-speed cam lobe to the high-speed cam lobe. In order to achieve that, we made the low-speed lobes much larger, which results in more overlap and lower and less consistent vacuum at idle. When the ECU sees this lower vacuum, it tries to compensate by enriching the fuel mixture making the car idle rough. In order to make the engine idle smoothly, it is necessary to reduce the fuel by 20%-30% in the 0-1500 rpm range of the fuel map. To get the smoothest idle possible, we recommend tuning by throttle position. Please note that if the cams are not degreed in to their proper position, it may make getting the car to idle more difficult; therefore in order to optimize power output and minimize idling and clearance issues, we recommend that all Pro-Series cams be degreed in.
For more information on how to degree camshafts and on cam timing and cam centerlines, see our Skunk2 catalog.