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The 4A-GE engine has long been a favorite among car enthusiasts and tuners alike, known for its lightweight design and impressive performance capabilities. In this article, we delve into the dyno test results of a modified 4A-GE engine equipped with Skunk2 camshafts and an AEM ECU, achieving a remarkable output of 170 horsepower.
Overview of the 4A-GE Engine
The 4A-GE is a 1.6L inline-four engine produced by Toyota, part of the A-series family. It is renowned for its high-revving nature and solid performance in various applications, including the AE86 Corolla. To understand the modifications made, let’s take a closer look at its stock specifications and capabilities.
- Displacement: 1.6 liters
- Configuration: Inline-four
- Power Output (Stock): Approximately 130 hp
- Torque: 138 lb-ft
Modifications Overview
To achieve the impressive 170 hp output, several key modifications were made to the 4A-GE engine. The two primary upgrades included the installation of Skunk2 camshafts and the integration of an AEM ECU.
Skunk2 Camshafts
Skunk2 is a well-respected brand in the tuning community, known for producing high-performance camshafts. The camshafts installed on this 4A-GE engine were designed to enhance airflow and improve engine efficiency.
- Increased lift and duration
- Enhanced throttle response
- Improved mid-range and top-end power
AEM ECU
The AEM ECU is a powerful engine management system that allows for precise tuning and optimization of the engine’s performance. With the AEM ECU, the 4A-GE can be finely tuned to take full advantage of the modifications made.
- Custom tuning capabilities
- Improved fuel mapping
- Real-time data monitoring
Dyno Testing Procedure
The dyno testing was conducted on a reputable dynamometer, ensuring accurate results. The testing process involved several key steps to assess the engine’s performance under various conditions.
- Baseline run with stock configuration
- Incremental adjustments with each modification
- Final run to measure peak horsepower and torque
Results of the Dyno Test
The final results of the dyno test revealed that the modified 4A-GE engine achieved an impressive output of 170 horsepower at the wheels, along with a significant increase in torque.
- Peak Horsepower: 170 hp
- Peak Torque: 145 lb-ft
- RPM Range: 6,500 – 7,500
Performance Analysis
The performance analysis of the modified 4A-GE indicates that the upgrades have significantly improved its drivability and responsiveness. The combination of Skunk2 camshafts and the AEM ECU has resulted in a well-rounded performance package.
- Improved acceleration and throttle response
- Smoother power delivery across the RPM range
- Enhanced overall driving enjoyment
Conclusion
The dyno test results of the 4A-GE modified with Skunk2 camshafts and an AEM ECU demonstrate the potential of this engine when properly tuned. Achieving 170 hp is no small feat and showcases the effectiveness of these performance modifications.
For enthusiasts looking to enhance their 4A-GE engines, these modifications present a viable path to achieving significant power gains while maintaining reliability. The combination of quality parts and expert tuning is essential for optimal performance.