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The Hellcat engine is renowned for its power and performance, but many enthusiasts seek to enhance its capabilities further. One popular modification is the installation of an ATI 2.9 pulley. This guide will walk you through the installation process and share the performance results you can expect from this upgrade.
Understanding the Benefits of Upgrading to an ATI 2.9 Pulley
Upgrading to an ATI 2.9 pulley can provide several benefits for your Hellcat engine:
- Increased Boost: The larger pulley allows for increased supercharger boost, leading to more horsepower.
- Improved Throttle Response: A better pulley setup can enhance throttle response, making the car feel more lively.
- Enhanced Performance: Overall performance improvements can be observed in acceleration and drivability.
Tools and Materials Needed for Installation
Before beginning the installation, ensure you have the following tools and materials:
- ATI 2.9 Pulley
- Socket set (including 10mm, 13mm, and 15mm sockets)
- Torque wrench
- Ratchet and extensions
- Impact wrench (optional)
- Pulley puller tool
- New supercharger belt (recommended)
- Safety glasses and gloves
Step-by-Step Installation Process
Step 1: Prepare Your Vehicle
Start by parking your vehicle on a flat surface and engaging the parking brake. Disconnect the negative battery terminal to prevent any electrical issues during the installation.
Step 2: Remove the Supercharger Belt
Using a ratchet and the appropriate socket, relieve tension on the supercharger belt tensioner. Carefully remove the belt from the supercharger pulley and set it aside.
Step 3: Remove the Stock Pulley
Utilize the pulley puller tool to remove the stock supercharger pulley. Follow the tool’s instructions to avoid damaging the pulley or the supercharger.
Step 4: Install the ATI 2.9 Pulley
Once the stock pulley is removed, carefully position the ATI 2.9 pulley onto the supercharger shaft. Ensure it is seated properly before proceeding.
Step 5: Secure the Pulley
Using the torque wrench, tighten the pulley bolt to the manufacturer’s specifications. This step is crucial to ensure the pulley is securely attached and will not come loose during operation.
Step 6: Reinstall the Supercharger Belt
Reinstall the supercharger belt, ensuring it is aligned correctly on the new pulley. Check the belt tension and adjust if necessary.
Step 7: Reconnect the Battery
Reconnect the negative battery terminal and ensure all tools are removed from the engine bay before starting the vehicle.
Performance Results After Installation
After completing the installation of the ATI 2.9 pulley, many users report significant improvements in their vehicle’s performance. Here are some common results:
- Increased Horsepower: Many drivers experience an increase of 30-50 horsepower after the upgrade.
- Improved 0-60 Times: Enhanced acceleration can lead to reduced 0-60 times, often in the range of 0.2-0.5 seconds faster.
- Better Overall Driving Experience: Users frequently report a more responsive throttle and a more exhilarating driving experience.
Conclusion
Upgrading to an ATI 2.9 pulley is a popular modification for Hellcat enthusiasts looking to boost performance. With the right tools and careful installation, you can enhance your vehicle’s capabilities significantly. Always remember to follow safety precautions and consult a professional if you are unsure about any part of the installation process.