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When it comes to upgrading a vehicle’s performance, one of the most debated topics among car enthusiasts is whether OEM camshafts are worth upgrading. This article explores a case study on a Subaru WRX, which achieved a remarkable 200 horsepower gain with a $600 investment in upgraded camshafts.
Understanding Camshafts
Camshafts play a crucial role in the engine’s performance by controlling the timing and duration of the intake and exhaust valves. Upgrading camshafts can lead to improved airflow, better fuel efficiency, and increased power output. However, the decision to upgrade should consider several factors.
Case Study: Subaru WRX
In this case study, a Subaru WRX was selected for the camshaft upgrade. The stock engine produced a respectable amount of horsepower, but the owner sought to enhance performance further. With a budget of $600, the owner decided to invest in upgraded camshafts.
Initial Specifications
The stock Subaru WRX features a turbocharged 2.0-liter engine, producing approximately 268 horsepower and 258 lb-ft of torque. The owner aimed to push the limits of this engine by upgrading the camshafts.
Choosing the Right Camshafts
After researching various options, the owner chose a set of performance camshafts specifically designed for the Subaru WRX. These camshafts promised increased lift and duration, allowing for better airflow and improved performance.
The Upgrade Process
The upgrade process involved several steps, including:
- Removing the stock camshafts
- Installing the new performance camshafts
- Tuning the engine for optimal performance
The entire process took approximately 6 hours, and the owner was excited to see the results of the upgrade.
Results of the Upgrade
After completing the installation and tuning, the owner took the Subaru WRX to a dynamometer to measure the horsepower gain. The results were astonishing:
- Stock horsepower: 268 hp
- Post-upgrade horsepower: 468 hp
- Total horsepower gain: 200 hp
This significant increase in horsepower showcased the effectiveness of upgrading the camshafts, proving that a $600 investment could yield impressive results.
Benefits of Upgrading Camshafts
Upgrading camshafts offers several benefits beyond just horsepower gains, including:
- Improved throttle response
- Better fuel efficiency
- Enhanced engine sound
- Increased torque across the RPM range
These benefits make the upgrade an attractive option for those looking to enhance their vehicle’s performance.
Considerations Before Upgrading
Before deciding to upgrade camshafts, consider the following:
- Compatibility with existing engine components
- Potential need for additional tuning
- Cost of installation and parts
- Impact on daily driving characteristics
These factors can affect the overall success of the upgrade and should be carefully evaluated.
Conclusion
The case study of the Subaru WRX demonstrates that upgrading OEM camshafts can be a worthwhile investment for those seeking significant horsepower gains. With a budget of $600, the owner achieved a remarkable 200 hp increase, showcasing the potential benefits of performance upgrades.
For enthusiasts looking to enhance their vehicle’s performance, upgrading camshafts may be an effective way to achieve their goals. However, it is essential to conduct thorough research and consider all aspects before proceeding with such upgrades.