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The RB26 engine, renowned for its performance and tuning potential, is a favorite among car enthusiasts looking to push the limits of power. Upgrading to a 700 horsepower setup requires careful selection of components, including turbos, intercoolers, and exhaust systems. In this article, we will explore the best options available for achieving that coveted 700 hp mark.
Understanding the RB26 Engine
The RB26DETT engine, originally found in the Nissan Skyline GT-R, is a 2.6-liter inline-six twin-turbocharged powerhouse. Its robust design and strong internals make it an ideal candidate for high horsepower builds. Before diving into upgrades, it’s essential to understand the engine’s capabilities and limitations.
Key Features of the RB26
- 2.6-liter inline-six configuration
- Twin-turbocharged setup
- Solid iron block and aluminum DOHC cylinder head
- High revving capability up to 8,000 RPM
Choosing the Right Turbochargers
To achieve 700 hp on an RB26, selecting the right turbochargers is crucial. There are several options available that can handle the power requirements while maintaining reliability.
Top Turbo Options
- Garrett GTX3582R: Known for its quick spool and excellent power delivery, this turbo can support up to 700 hp with the right setup.
- HKS GT-RS: A popular choice among RB26 enthusiasts, it offers a good balance of power and response.
- Precision 6266: This turbo is capable of supporting over 700 hp and is known for its durability.
Upgrading the Intercooler
An efficient intercooler is vital for maintaining optimal air intake temperatures, especially when pushing for higher horsepower. A larger, more efficient intercooler can significantly improve performance.
Recommended Intercoolers
- Greddy Type RS: Offers excellent cooling efficiency and fits well in the RB26 engine bay.
- HKS Super Sequential: Known for its high flow rate and durability, making it a solid choice for high horsepower builds.
- ISR Performance Intercooler: A budget-friendly option that still provides great performance for 700 hp setups.
Exhaust System Upgrades
To maximize the performance of your RB26, upgrading the exhaust system is essential. A free-flowing exhaust will reduce back pressure and improve turbo efficiency.
Best Exhaust Systems
- HKS Hi-Power Exhaust: Offers a great sound and excellent flow characteristics, perfect for high horsepower applications.
- Apexi N1 Evolution: Known for its lightweight and high performance, this exhaust is a favorite among tuners.
- ISR Performance Cat-Back: A cost-effective solution that provides good performance and fitment for the RB26.
Supporting Modifications
In addition to turbos, intercoolers, and exhaust systems, several supporting modifications are necessary to ensure reliability and performance at 700 hp.
Essential Supporting Upgrades
- Fuel System Upgrade: High-flow fuel injectors and a performance fuel pump are critical for delivering the necessary fuel.
- ECU Tuning: A proper tune is essential to optimize performance and ensure engine safety.
- Upgraded Clutch: A stronger clutch will handle the increased power and prevent slippage.
Final Thoughts
Achieving 700 hp from an RB26 engine is an exciting challenge that requires careful planning and the right components. By selecting the best turbos, intercoolers, and exhaust systems, along with necessary supporting modifications, you can unleash the full potential of this legendary engine. Always remember to consult with professionals and consider your specific goals when building your RB26 for maximum performance.