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The Dodge Hellcat is a powerhouse, boasting an impressive 707 horsepower from the factory. However, many enthusiasts seek to push that power even further. One of the most effective ways to increase your Hellcat’s output is through pulley upgrades. In this article, we will explore how to safely increase your Hellcat’s power from 707 to 775+ HP using pulley upgrades.
Understanding Pulley Upgrades
Pulley upgrades involve replacing the supercharger pulley to increase boost pressure. A smaller pulley allows the supercharger to spin faster, thereby increasing the amount of air and fuel entering the engine. This results in a significant power increase. However, it’s essential to approach this upgrade carefully to avoid damaging your engine.
Choosing the Right Pulley
When selecting a pulley upgrade, consider the following:
- Size: Smaller pulleys increase boost but require additional modifications.
- Material: Look for high-quality materials that can withstand high RPMs.
- Brand Reputation: Choose reputable brands known for quality and performance.
Supporting Modifications
To safely increase power, consider additional modifications alongside the pulley upgrade:
- Fuel System Upgrades: Ensure your fuel system can handle the increased demand.
- Cooling Upgrades: Improved intercoolers can help manage the extra heat generated.
- ECU Tuning: A proper tune is essential to optimize performance and prevent engine damage.
Installation Process
Proper installation of the new pulley is crucial for performance and reliability. Follow these steps for a successful installation:
- Gather Tools: Ensure you have the necessary tools, including a pulley puller and torque wrench.
- Remove the Stock Pulley: Carefully detach the stock pulley from the supercharger.
- Install the New Pulley: Align and securely fasten the new pulley in place.
- Reassemble Components: Put everything back together, ensuring all connections are tight.
Testing and Tuning
After installation, it’s vital to test the vehicle and perform tuning adjustments:
- Dyno Testing: Use a dynamometer to measure the new horsepower and torque levels.
- ECU Reflash: Reflash the ECU to accommodate the new airflow and fuel requirements.
- Monitor Parameters: Keep an eye on air-fuel ratios and boost levels during test runs.
Safety Considerations
While increasing power is exciting, safety should always be a priority:
- Regular Maintenance: Keep up with oil changes and other maintenance tasks.
- Monitor Engine Health: Watch for any signs of knocking or unusual noises.
- Use Quality Parts: Invest in high-quality components to ensure reliability.
Conclusion
Increasing your Hellcat’s power from 707 to 775+ HP through pulley upgrades can be a rewarding endeavor. By choosing the right pulley, supporting modifications, and following proper installation and tuning processes, you can enjoy the enhanced performance while keeping your engine safe. Always prioritize safety and reliability to make the most of your powerful ride.