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The performance of a vehicle can be significantly influenced by its exhaust system, particularly the headers. In this article, we will explore a dyno test comparing long tube headers and shorty headers from Pacesetter to determine which offers better performance.
Understanding Headers
Headers are an essential part of a vehicle’s exhaust system, connecting the engine to the exhaust pipe. They play a crucial role in how exhaust gases are expelled, which can affect engine performance. There are two primary types of headers: long tube and shorty headers.
Long Tube Headers
Long tube headers are designed to provide a more efficient path for exhaust gases to exit the engine. They typically extend further down the vehicle’s chassis, allowing for increased flow and improved performance.
Advantages of Long Tube Headers
- Improved exhaust flow due to longer primary tubes.
- Better torque and horsepower gains, especially in high RPM ranges.
- Enhanced sound quality, providing a deeper exhaust note.
Disadvantages of Long Tube Headers
- More complex installation, often requiring modifications.
- Potential clearance issues in tighter engine bays.
- May not be street legal in some areas due to emissions regulations.
Shorty Headers
Shorty headers, on the other hand, are designed to be more compact. They typically replace the factory exhaust manifold and offer a simpler installation process.
Advantages of Shorty Headers
- Easy installation with minimal modifications required.
- Better fit in tighter engine compartments.
- Potentially more street-legal options available.
Disadvantages of Shorty Headers
- Less effective at improving exhaust flow compared to long tube headers.
- Lower horsepower and torque gains, particularly at higher RPMs.
- Sound quality may not be as aggressive as long tube headers.
The Dyno Test
To determine which type of header offers better performance, a dyno test was conducted using both Pacesetter long tube and shorty headers. The test was performed on a controlled dyno to accurately measure horsepower and torque output.
Test Parameters
- Vehicle: 2010 Chevy Camaro SS
- Engine: 6.2L V8
- Baseline runs with factory headers for comparison
- Test conditions: Same weather, fuel, and engine temperature
Results
The results of the dyno test were revealing. The long tube headers showed a significant increase in horsepower and torque across the RPM range compared to the shorty headers. Specifically:
- Long Tube Headers: +25 horsepower and +30 lb-ft of torque.
- Shorty Headers: +10 horsepower and +15 lb-ft of torque.
Conclusion
Based on the dyno test results, it is clear that Pacesetter long tube headers offer better performance compared to shorty headers in terms of horsepower and torque gains. However, the choice between the two should also consider factors such as installation complexity, vehicle application, and local emissions regulations.
Final Thoughts
When upgrading your vehicle’s exhaust system, understanding the differences between header types is crucial. Long tube headers provide superior performance but may require more investment in installation and compliance. Shorty headers offer convenience and ease of installation, making them a viable option for many drivers.