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The A90 Supra, powered by the B58 engine, has become a favorite among car enthusiasts looking to boost performance. With its robust inline-six design, the B58 is capable of handling significant power increases, making it an ideal candidate for modifications. One of the most effective upgrades for achieving 650+ horsepower goals is the installation of a BorgWarner EFR turbocharger.
Understanding the B58 Engine
The B58 engine is a 3.0-liter inline-six that features a twin-scroll turbocharger and a host of advanced technologies. It is known for its smooth power delivery and impressive torque. Key features include:
- Single twin-scroll turbocharger
- Direct injection and port fuel injection
- Integrated water-to-air intercooler
Why Upgrade to a BorgWarner EFR Turbo?
The BorgWarner EFR turbocharger series is renowned for its performance and efficiency. Upgrading to an EFR turbo can provide several benefits:
- Increased horsepower and torque
- Faster spool times
- Improved throttle response
- Lightweight and compact design
Choosing the Right BorgWarner EFR Turbo
When selecting a BorgWarner EFR turbo for the A90 Supra, consider the following options:
- EFR 7670: Ideal for 600-700 hp goals, offers excellent response.
- EFR 8374: Suitable for those aiming for 700+ hp, known for its high efficiency.
Installation Process
Installing a BorgWarner EFR turbo on the B58 engine requires careful planning and execution. Here’s a general overview of the installation process:
- Gather necessary tools and parts.
- Remove the factory turbocharger and associated components.
- Install the new EFR turbocharger, ensuring proper alignment and fit.
- Connect all necessary oil and coolant lines.
- Reinstall any removed components and double-check connections.
- Reflash the ECU to accommodate new turbo parameters.
Tuning for Maximum Performance
After installing the new turbo, tuning is crucial to unlock the full potential of the setup. Consider the following:
- Utilize a reputable tuning software or service.
- Focus on optimizing fuel maps and ignition timing.
- Monitor air-fuel ratios to ensure engine safety.
Supporting Mods for 650+ HP Goals
To reliably achieve and maintain 650+ hp, additional modifications may be necessary. Consider the following supporting mods:
- Upgraded fuel injectors: Ensure adequate fuel delivery.
- High-flow fuel pump: Required for increased fuel demands.
- Upgraded intercooler: Helps maintain lower intake temperatures.
- Exhaust system: Reduces back pressure and improves flow.
Conclusion
Upgrading to a BorgWarner EFR turbo is an excellent way to achieve 650+ hp goals with the A90 Supra’s B58 engine. With the right components and tuning, enthusiasts can enjoy significant performance gains while maintaining reliability. As always, ensure that any modifications are performed by qualified professionals to maximize results and safety.