Tuning 13b-rew with Aem Infinity: Achieving 400+ Hp Safely

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Tuning the Mazda RX-7’s 13B-REW engine with AEM Infinity can unlock impressive power while maintaining reliability. This article explores the process of achieving over 400 horsepower safely.

Understanding the 13B-REW Engine

The 13B-REW is a rotary engine known for its lightweight design and high power-to-weight ratio. It features:

  • Two rotors with a displacement of 1.3 liters.
  • Sequential twin turbochargers for improved airflow.
  • Lightweight construction for enhanced performance.

Benefits of AEM Infinity ECU

The AEM Infinity ECU offers numerous advantages for tuning the 13B-REW engine:

  • Advanced tuning capabilities for optimal performance.
  • Real-time data logging for performance monitoring.
  • Flexibility to adjust fuel maps and ignition timing.

Preparing for the Tune

Before starting the tuning process, ensure the following components are in place:

  • High-flow fuel injectors for increased fuel delivery.
  • Upgraded fuel pump to support higher horsepower.
  • Performance intercooler to reduce intake temperatures.
  • Exhaust system modifications for improved airflow.

Initial Setup of AEM Infinity

Setting up the AEM Infinity ECU involves several steps:

  • Install the ECU and connect all necessary sensors.
  • Configure the base map for the 13B-REW engine.
  • Calibrate the sensors for accurate readings.

Tuning Process

The tuning process can be broken down into key stages:

Fuel Mapping

Adjusting the fuel map is crucial for achieving the desired power output:

  • Start with a conservative fuel map to ensure safety.
  • Gradually increase fuel delivery as power increases.
  • Monitor air-fuel ratios to maintain optimal combustion.

Ignition Timing

Fine-tuning ignition timing is essential for maximizing performance:

  • Begin with a stock ignition timing map.
  • Advance timing incrementally while monitoring knock.
  • Find the optimal point for maximum power without detonation.

Boost Control

Managing boost levels is vital for safe and effective tuning:

  • Set a target boost level based on engine modifications.
  • Use the AEM Infinity to control boost via electronic wastegate.
  • Monitor boost levels during testing to prevent overboosting.

Testing and Validation

After completing the tuning process, thorough testing is necessary:

  • Conduct dyno testing to measure horsepower and torque.
  • Check for any signs of detonation or engine knocking.
  • Validate the air-fuel ratios across the entire RPM range.

Maintaining Performance

To ensure long-term reliability and performance, consider the following maintenance tips:

  • Regularly check and replace spark plugs.
  • Monitor fuel quality and replace filters as needed.
  • Keep an eye on oil levels and change oil frequently.

Conclusion

Tuning the 13B-REW with AEM Infinity can yield impressive results, achieving over 400 horsepower while maintaining safety. By following the outlined steps and maintaining the engine properly, you can enjoy a powerful and reliable rotary experience.