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The 5.7 HEMI engine is known for its power and performance, but enthusiasts often seek ways to enhance its capabilities further. One popular modification is upgrading the camshaft. In this article, we will explore the differences between a stock 5.7 HEMI cam and a performance cam from Comp Cams, focusing on how you can achieve over 100 horsepower gains.
Understanding the Basics of Camshafts
A camshaft plays a crucial role in the engine’s performance by controlling the timing and duration of the valve openings. The stock camshaft is designed for a balance of performance and efficiency, while aftermarket options like those from Comp Cams are engineered to maximize performance.
Stock 5.7 HEMI Camshaft Specifications
The stock camshaft in the 5.7 HEMI is designed for reliability and fuel efficiency. Here are some key specifications:
- Lift: 0.465 inches
- Duration: 204 degrees intake / 209 degrees exhaust
- Lobe Separation Angle: 116 degrees
Comp Cams Performance Camshaft Overview
Comp Cams offers several camshaft options for the 5.7 HEMI, designed to enhance performance significantly. One of the most popular choices is the Comp Cams Xtreme Energy series. Here are its specifications:
- Lift: 0.525 inches
- Duration: 218 degrees intake / 224 degrees exhaust
- Lobe Separation Angle: 112 degrees
Comparing Performance: Stock vs. Comp Cams
The performance difference between the stock cam and the Comp Cams upgrade is substantial. Here’s what you can expect:
- Increased horsepower: Up to 100+ HP gain
- Improved torque across the RPM range
- Enhanced throttle response
Benefits of Upgrading to Comp Cams
Upgrading to a performance camshaft like those from Comp Cams offers several advantages:
- Power Gains: Significant increase in horsepower and torque.
- Customization: Options tailored to specific performance goals and driving styles.
- Sound: A more aggressive engine note that enhances the driving experience.
Installation Considerations
Installing a new camshaft requires careful consideration and planning. Here are some key points to keep in mind:
- Professional Installation: It’s recommended to have a professional perform the installation to ensure proper alignment and timing.
- Supporting Mods: Consider upgrading other components such as the intake, exhaust, and tuning for optimal performance.
- Compatibility: Ensure the camshaft is compatible with your specific engine model and year.
Tuning Your Engine After the Upgrade
After installing a new camshaft, tuning your engine is critical to fully realize the performance gains. Here’s what you need to do:
- ECU Reflash: Update the engine control unit to accommodate the new camshaft specifications.
- Dyno Tuning: Consider a dyno session to fine-tune performance and maximize gains.
- Monitor A/F Ratios: Ensure the air-fuel ratios are optimized for the new setup.
Real-World Performance Gains
Many enthusiasts have reported substantial performance improvements after upgrading to a Comp Cams camshaft. Typical results include:
- Horsepower increases ranging from 80 to over 100 HP
- Torque improvements that enhance drivability
- Better acceleration times and overall responsiveness
Conclusion
Upgrading to a Comp Cams camshaft for your 5.7 HEMI can yield impressive performance gains, exceeding 100 horsepower. With the right installation and tuning, you can transform your engine into a powerful machine that delivers an exhilarating driving experience. Whether you’re a performance enthusiast or a casual driver, this upgrade is worth considering for maximizing your engine’s potential.