Comp Cams CAM PHASER KIT, GM L-94/L-99
GM L94/L99 Cam Phaser Limiter Kit
Recently, General Motors developed the new L94/L99 engines, which utilize Variable Valve Timing (VVT). This technology is regulated by the use of cam phasers, which are computer controlled cam gears that optimize camshaft timing based on current engine rpm. Engine oil is pressure fed to the cam phasers through a series of passageways in the cylinder heads and cam while the engine computers control solenoids that adjust this oil flow into and out of the phaser's control chambers. While this technology provides benefits such as fuel efficiency, it does present some limitations when it comes to performance camshafts. With such a wide range of valve timing movement, there is very little piston to valve clearance, which limits you to small cam profiles with little overlap.
COMP Cams® has addressed this concern of street performance and racing enthusiasts by developing the U.S. Patented GM L94/L99 Cam Phaser Limiter Kit. This valve train modification restricts the range of cam timing movement from 52° to 22°, providing the necessary valve clearance for more aggressive hydraulic roller camshafts with tighter lobe separations, all while still reaping the benefits of GM VVT technology.
This modification was designed and tested with the COMP Cams® XFIT SPR Cams and #26918 BeehiveT Valve Springs. The results of this valve train combination are some of the biggest gains in power and torque COMP® has ever seen. 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 L94/L99 cam phaser.
Vehicle Fitments:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2010 | Cadillac | Escalade | Base, Hybrid, Platinum, Hybrid Platinum |
| 2010 | Cadillac | Escalade ESV | Base, Platinum |
| 2010 | Cadillac | Escalade EXT | Base |
| 2010 | Chevrolet | Camaro | LT, LS, SS |
| 2010 | GMC | Yukon | Hybrid, SLT, Denali Hybrid, Base, Denali, SLE |
| 2010 | GMC | Yukon XL 1500 | Denali, SLE, SLT |
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Comp Cams CAM PHASER KIT, GM L-94/L-99
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Are OEM products more expensive than aftermarket alternatives?
OEM products might have a higher upfront cost compared to aftermarket parts, but their superior quality and durability often make them a more cost-effective choice over time. Investing in OEM ensures you’re getting parts specifically designed for your vehicle, which can lead to better performance and longevity.
Can I purchase OEM parts online or do I need to visit a dealership?
You don’t need to visit a dealership to get OEM parts. You can conveniently purchase genuine OEM components from authorized distributors and reputable online retailers like Turbo Tech Performance. Our online store provides a wide selection of high-quality parts delivered straight to your door.
Are parts from brands like Mopar, ACDelco, and Motorcraft interchangeable between different vehicle brands?
No, parts from Mopar, ACDelco, and Motorcraft are typically designed for specific vehicle brands. It’s crucial to ensure compatibility with your vehicle’s make and model by checking part numbers and consulting with a knowledgeable expert.
Can I install OEM parts myself, or is it better to have a professional handle it?
While some OEM parts can be installed by DIY enthusiasts, the complexity of installation can vary. For the best results and to ensure proper fitment and performance, we recommend having a trained mechanic install the parts, especially if you’re unfamiliar with automotive repairs.
Do OEM parts come with a warranty?
Yes, many OEM auto parts come with a manufacturer’s warranty that covers defects or issues. Be sure to check the warranty details for each part at the time of purchase, and keep your receipt for any potential warranty claims.