Table of Contents
The Mopar 426 HEMI is a legendary engine that has captivated car enthusiasts since its inception. Known for its immense power and performance, the 426 HEMI has become a symbol of American muscle. In this article, we will explore how to double your horsepower using Comp Cams and a high-flow fuel system, comparing the 426 HEMI to stock configurations.
Understanding the Mopar 426 HEMI
The Mopar 426 HEMI was first introduced in the 1960s and quickly gained a reputation for its robust performance. This engine features a unique hemispherical combustion chamber design that allows for improved airflow and combustion efficiency. The 426 HEMI was originally designed for racing, but its applications have expanded into street performance as well.
Stock Performance of the 426 HEMI
In its stock form, the Mopar 426 HEMI produces an impressive amount of horsepower and torque. However, many enthusiasts seek to push the limits of this engine even further. Understanding the stock specifications is crucial for any performance upgrades.
- Horsepower: Approximately 425 hp
- Torque: Around 490 lb-ft
- Engine Type: V8, 426 cubic inches
Upgrading with Comp Cams
One of the most effective ways to increase horsepower is by upgrading the camshaft. Comp Cams offers a range of camshaft options specifically designed for the 426 HEMI. These camshafts are engineered to improve airflow and optimize performance, resulting in significant horsepower gains.
Benefits of Comp Cams
Using Comp Cams can provide numerous benefits, including:
- Increased horsepower and torque
- Improved throttle response
- Enhanced engine sound
- Better overall performance
Implementing a High-Flow Fuel System
Alongside camshaft upgrades, a high-flow fuel system is essential for maximizing the performance of the 426 HEMI. A high-flow fuel pump and larger injectors ensure that the engine receives the necessary fuel supply to support increased horsepower.
Components of a High-Flow Fuel System
- High-flow fuel pump
- Larger fuel injectors
- Upgraded fuel lines
- Performance fuel pressure regulator
Combining Upgrades for Maximum Power
To achieve the best results, it’s crucial to combine both Comp Cams and a high-flow fuel system. This synergy will allow the engine to breathe better and utilize the increased fuel supply, resulting in a substantial increase in horsepower.
Expected Power Gains
With the right combination of upgrades, enthusiasts can expect to see their horsepower increase significantly. Many users report gains of:
- From 425 hp to over 600 hp
- Torque increases from 490 lb-ft to around 600 lb-ft
Conclusion
The Mopar 426 HEMI is a powerful engine that can be further enhanced with the right modifications. By upgrading to Comp Cams and implementing a high-flow fuel system, you can double your horsepower and unlock the full potential of this legendary engine. Whether for racing or street performance, these upgrades will ensure that your HEMI stands out on the road.