Variable valve timing (VVT) is a neat idea, when it comes to fuel economy in daily driving. But how to get more out of a VVT-equipped engine? Comp Cams has just the thing for 2007-later L92 and VVT-equipped LS-series engines--their new VVT Cam Phaser Limiter Kit.

 In recent years, General Motors has developed the new L92 engine that utilizes Variable Valve
Timing (VVT). This technology is regulated by cam phasers, which are computer controlled cam
gears that optimize camshaft timing based on the current rpm and load. Although highly fuel
efficient, this technology has limitations for those looking for a performance cam due to the wide
range of valve timing movement and constantly changing piston-to-valve clearance.

Comp Cams has recently addressed this concern of street performance and racing enthusiasts
by developing the GM Gen IV VVT Cam Phaser Limiter Kit. This valve train modification
restricts the range of cam timing from about 50° to 20°, allowing the necessary valve clearance
for more aggressive hydraulic roller camshafts with tighter lobe separations, while still
maintaining the benefits of GM VVT technology.

This package was designed and tested with Comp Cams XFI SPR (Springs & Phaser
Required) Cam Series, which has four application-specific cam grinds, from which to choose,
and #26918 Beehive Valve Springs. The results of this valve train combination are some of the
biggest gains in power and torque ever seen on LS engines. Best of all, these significant
increases in the upper-rpm range do not sacrifice any bottom-end or mid-range performance.

This revolutionary performance modification includes the phaser limiter and all of the
accessories needed for installation into the GM VVT cam phaser.

For more information aboutthe Comp Cams GM Gen IV VVT Cam Phaser Limiter Kits or any other Comp Cams product, call Comp Cams at 1-800-999-0853, or log on to www.compcams.com.