Table of Contents
The 5.7 HEMI engine is known for its robust performance and reliability. However, many enthusiasts seek to enhance its power output significantly. One of the most effective ways to achieve this is through a camshaft upgrade. This guide will walk you through a step-by-step process to upgrade your 5.7 HEMI cam, boosting power from 370 to over 500 horsepower using MOPAR or Edelbrock kits.
Understanding the Benefits of a Cam Upgrade
A camshaft upgrade can drastically improve engine performance by altering the timing and duration of the valve openings. This change allows for better airflow, which translates to increased horsepower and torque. Here are some key benefits:
- Increased Horsepower: A properly selected cam can boost horsepower significantly.
- Improved Torque: Enhanced torque delivery at various RPMs.
- Better Throttle Response: Quicker engine response to accelerator input.
- Enhanced Sound: A more aggressive engine note that many enthusiasts enjoy.
Choosing the Right Camshaft Kit
When selecting a camshaft kit for your 5.7 HEMI, you have two popular options: MOPAR and Edelbrock. Both brands offer high-quality kits designed to enhance performance. Here’s a comparison to help you decide:
- MOPAR Kits: Designed specifically for HEMI engines, these kits often include everything needed for installation.
- Edelbrock Kits: Known for their performance and reliability, Edelbrock kits provide a wide range of options for different performance goals.
Tools and Materials Needed
Before starting the cam upgrade process, ensure you have the following tools and materials:
- Tools:
- Socket set
- Torque wrench
- Engine hoist (if necessary)
- Camshaft installation tool
- Timing chain tool
- Materials:
- New camshaft kit (MOPAR or Edelbrock)
- New timing chain or belt
- Gaskets and seals
- Engine oil
Step-by-Step Camshaft Upgrade Process
Step 1: Preparation
Before you begin, ensure your vehicle is parked on a level surface and the engine is cool. Disconnect the battery to prevent any electrical issues during the installation.
Step 2: Remove the Engine Cover
Remove the engine cover by unscrewing the bolts that hold it in place. This will give you access to the engine components.
Step 3: Remove the Intake Manifold
Carefully detach the intake manifold by removing the bolts. Ensure that you keep track of the bolts and any gaskets that may need replacing.
Step 4: Remove the Timing Chain Cover
Next, remove the timing chain cover. This step may require the engine to be slightly lifted, depending on your vehicle setup.
Step 5: Remove the Old Camshaft
Using the camshaft installation tool, carefully remove the old camshaft. Take note of the orientation and position of the old cam for reference during installation.
Step 6: Install the New Camshaft
Install the new camshaft in the same orientation as the old one. Ensure it is seated correctly and securely.
Step 7: Reassemble the Timing Chain Cover
Once the new cam is in place, reattach the timing chain cover. Make sure to use new gaskets to prevent any leaks.
Step 8: Reattach the Intake Manifold
Reinstall the intake manifold, ensuring all bolts are tightened to the manufacturer’s specifications.
Step 9: Replace the Engine Cover
Finally, replace the engine cover and reconnect the battery. Double-check all connections and components to ensure everything is secure.
Testing Your Upgrade
After completing the installation, it’s crucial to test your vehicle to ensure the new camshaft is functioning correctly. Follow these steps:
- Start the Engine: Allow the engine to idle for a few minutes to ensure proper oil circulation.
- Check for Leaks: Inspect for any oil or coolant leaks around the gaskets and seals.
- Take a Test Drive: Drive the vehicle to assess the performance improvement and ensure there are no unusual noises.
Conclusion
Upgrading the camshaft in your 5.7 HEMI is a rewarding process that can significantly enhance your vehicle’s performance. Whether you choose a MOPAR or Edelbrock kit, following these steps will help you achieve the horsepower gains you’re looking for. Enjoy the thrill of driving a more powerful HEMI!