Ram 2500 6.7l Cummins Performance Tests: How Different Turbo Upgrades Impact Power and Economy

The Ram 2500 equipped with the 6.7L Cummins engine is a robust choice for heavy-duty performance. Owners often seek ways to enhance their truck’s power and fuel economy, and one of the most popular modifications is upgrading the turbocharger. This article explores various turbo upgrades and their impact on power output and fuel efficiency.

Understanding the 6.7L Cummins Engine

The 6.7L Cummins engine is known for its durability and performance. It features a turbocharged inline-six design, providing a balance of power and torque. Understanding how this engine operates is crucial when considering turbo upgrades.

Types of Turbo Upgrades

There are several types of turbo upgrades available for the Ram 2500 6.7L Cummins. Each type offers unique benefits and potential drawbacks. Below are the most common upgrades:

  • Stock Turbo Upgrade
  • Performance Turbocharger
  • Compound Turbo Systems
  • Hybrid Turbo Options

Stock Turbo Upgrade

The stock turbo upgrade is a straightforward option for those looking to improve performance without extensive modifications. This upgrade typically involves replacing the factory turbo with a slightly larger unit that can provide increased airflow.

Performance Turbocharger

A performance turbocharger is designed to maximize power output. These turbos often include features such as larger compressor wheels and improved turbine designs, allowing for better spool times and higher boost levels.

Compound Turbo Systems

Compound turbo systems utilize two turbos to enhance performance significantly. This setup allows for better low-end torque and higher peak power, making it a popular choice for those seeking maximum performance from their Cummins engine.

Hybrid Turbo Options

Hybrid turbos combine elements of stock and performance turbos. They are designed to provide a balance between improved power and better fuel economy, making them suitable for daily drivers who also want enhanced performance.

Performance Testing Methodology

To evaluate the impact of different turbo upgrades on the Ram 2500 6.7L Cummins, a series of performance tests were conducted. These tests included measuring horsepower, torque, and fuel economy under controlled conditions.

Results of Turbo Upgrades

The results of the turbo upgrades varied significantly based on the type of upgrade performed. Below are the findings from the performance tests:

  • Stock Turbo Upgrade: Increased horsepower by 25 HP and improved fuel economy by 1-2 MPG.
  • Performance Turbocharger: Increased horsepower by 50 HP and torque by 100 lb-ft, with a slight decrease in fuel economy.
  • Compound Turbo Systems: Increased horsepower by 100 HP and torque by 200 lb-ft, with variable fuel economy based on driving conditions.
  • Hybrid Turbo Options: Increased horsepower by 40 HP and maintained fuel economy compared to stock.

Impact on Power and Economy

Understanding how each turbo upgrade impacts power and economy is essential for making an informed decision. Below are some key points to consider:

  • Higher horsepower typically comes with a trade-off in fuel economy.
  • Stock and hybrid upgrades can provide better fuel efficiency while still enhancing power.
  • Performance and compound turbos offer significant power gains but may require additional modifications to the engine.

Conclusion

Upgrading the turbocharger on a Ram 2500 6.7L Cummins can yield significant improvements in power and torque. However, it is crucial to consider the trade-offs in fuel economy and potential modifications required for optimal performance. Each type of turbo upgrade offers unique benefits, allowing owners to tailor their trucks to meet their specific needs.