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The RB26DETT is a legendary engine known for its impressive performance and tuning potential. Building a 650+ horsepower RB26DETT with forged internals and ARP head studs is a popular project among car enthusiasts. This guide will walk you through the essential steps to achieve this goal.
Understanding the RB26DETT Engine
The RB26DETT is a 2.6-liter inline-six engine that comes equipped with twin turbochargers. It was originally designed for the Nissan Skyline GT-R and has become a favorite for tuners due to its robust construction and high power potential.
Components Needed for the Build
- Forged pistons
- Forged connecting rods
- ARP head studs
- Aftermarket turbochargers
- Upgraded fuel injectors
- High-performance fuel pump
- ECU tuning solution
Step-by-Step Build Process
1. Disassembly of the Engine
Begin by removing the engine from the vehicle. Once removed, disassemble the engine carefully, taking note of the order of components for reassembly. Ensure you have a clean workspace and organized tools.
2. Inspecting Engine Components
Inspect all engine components for wear and damage. Focus on the cylinder head, block, and existing internals. This step is crucial to ensure that the base engine is in good condition before upgrading.
3. Installing Forged Internals
Replace the stock pistons and connecting rods with forged versions. Forged internals are designed to withstand higher power outputs and provide better reliability. Follow the manufacturer’s specifications for installation torque and clearances.
4. Upgrading to ARP Head Studs
Remove the factory head bolts and replace them with ARP head studs. These studs provide superior clamping force and are essential for high horsepower applications. Ensure proper torque settings are followed during installation.
5. Turbocharger Upgrade
Upgrade the turbochargers to larger units that can support the desired horsepower. Ensure compatibility with your engine setup and consider upgrading the exhaust manifold and intercooler as well for optimal performance.
6. Fuel System Upgrades
Install larger fuel injectors and a high-performance fuel pump to ensure adequate fuel delivery. Proper fuel management is critical for achieving 650+ horsepower without risking engine damage.
7. Tuning the Engine
After all components are installed, it’s time to tune the engine. Use a reputable ECU tuning solution to optimize fuel maps, ignition timing, and boost levels. A professional tuner can help ensure the engine runs smoothly and reliably at high horsepower levels.
Final Checks and Testing
Before starting the engine, double-check all connections and fluid levels. Once everything is confirmed, start the engine and monitor for any issues. Conduct a thorough test drive to ensure performance meets expectations.
Conclusion
Building a 650+ horsepower RB26DETT with forged internals and ARP head studs is an ambitious yet rewarding project. With the right components and careful attention to detail, you can achieve impressive performance while maintaining reliability. Always prioritize quality parts and professional tuning to maximize your engine’s potential.