3b-rew Performance Gains: How a $2,500 Built Motor Achieved 350 Hp

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The 3B-REW engine has become a popular choice among performance enthusiasts, especially those looking to maximize horsepower without breaking the bank. In this article, we will explore how a built motor costing just $2,500 can achieve an impressive 350 horsepower.

Understanding the 3B-REW Engine

The 3B-REW engine, known for its lightweight design and rotary configuration, is a unique powerplant that has captivated automotive enthusiasts. This engine, developed by Mazda, is part of the RX series and is recognized for its high-revving capabilities.

Key Components of a Built 3B-REW Motor

To achieve significant performance gains, several key components must be upgraded or replaced. Here are the main elements that contribute to the enhanced capabilities of a built 3B-REW motor:

  • Rotors: Upgrading to lightweight rotors can reduce inertia and improve throttle response.
  • Porting: Custom porting of the intake and exhaust ports increases airflow, allowing for better combustion.
  • Turbocharger: A larger, more efficient turbocharger can significantly boost power output.
  • Fuel System: Upgrading the fuel injectors and pump ensures adequate fuel delivery under high-performance conditions.
  • ECU Tuning: Custom tuning of the engine control unit (ECU) optimizes performance parameters for maximum power.

Performance Gains Achieved

With the right modifications, a built 3B-REW motor can achieve remarkable performance gains. Here’s a breakdown of how these upgrades contribute to reaching 350 horsepower:

  • Increased Airflow: Enhanced porting and turbocharger upgrades allow for more air to enter the combustion chamber, leading to more power.
  • Improved Combustion: With better fuel delivery and tuning, the engine can burn fuel more efficiently, maximizing output.
  • Weight Reduction: The lightweight nature of the rotary engine means that even with added components, the overall weight remains low, improving power-to-weight ratio.

Cost Breakdown of a $2,500 Built Motor

Building a high-performance 3B-REW motor for $2,500 requires careful budgeting and sourcing of parts. Here’s a typical cost breakdown:

  • Engine Rebuild Kit: $800 – Includes gaskets, seals, and bearings.
  • Turbocharger: $600 – A performance turbocharger designed for the 3B-REW.
  • Porting Services: $400 – Professional porting to enhance airflow.
  • Fuel System Upgrades: $300 – High-flow injectors and pump.
  • ECU Tuning: $400 – Custom tuning to optimize performance.

Challenges and Considerations

While building a 3B-REW motor for 350 horsepower can be achieved, there are several challenges and considerations to keep in mind:

  • Reliability: High horsepower can lead to increased wear and tear on engine components.
  • Cooling: Enhanced performance requires better cooling solutions to prevent overheating.
  • Legal Regulations: Modifications may affect emissions compliance and legality for street use.

Conclusion

The 3B-REW engine can deliver impressive performance gains with the right modifications. By investing $2,500 into a built motor, enthusiasts can achieve 350 horsepower, making it a cost-effective solution for those looking to enhance their rotary engine’s capabilities. With careful planning and execution, the 3B-REW can be a formidable powerplant on the road or track.