​The HKS Camshaft 2202-RN136 is a high-performance exhaust camshaft specifically designed for the Nissan RB26DETT engine, particularly optimized for the BNR34 Skyline GT-R model. Part of HKS's Step 1 (SS-Cam) series, this camshaft aims to enhance engine performance for motorsport and high-performance applications.​

Key Features:

• Camshaft Specifications:

  • Duration: 272°​
  • Valve Lift: 8.7 mm​
  • Valve Timing (using stock cam sprocket):
    • Open (BTDC): 75°
    • Close (ABDC): 45°
    • Max Lift: 113°
    • Total Duration (0mm lift): 300°
    • Duration at 1mm Lift: 236°

• Performance Enhancement:

  • Optimized Exhaust Flow: Designed to improve exhaust gas flow, enhancing engine efficiency and power output, especially at higher RPMs.​
  • Motorsport Focused: Tailored for motorsport applications, offering improved throttle response and performance on the track.​

• Compatibility:

  • Vehicle Model: Nissan Skyline GT-R BNR34​
  • Engine Model: Nissan RB26DETT​
  • Base Circle Radius: 32 mm​

• Installation Considerations:

  • Valve Clearance Adjustment: Due to a smaller base circle diameter compared to the stock camshaft, valve clearance adjustments are necessary.​
  • Cylinder Head Modification: Modifications are required to ensure proper clearance between the camshaft lobes and the cylinder head.​
  • Professional Tuning: Recommended to fine-tune valve timing with stock or adjustable cam sprockets for optimal performance.​

• Supporting Modifications:

  • Valve Springs: HKS recommends using Step 1 strengthened valve springs to handle increased lift and RPMs safely.​

• Additional Notes:

  • Motorsport Use: Designed primarily for motorsport; may not be suitable for street use in certain regions due to emissions regulations.​
  • Professional Installation: Given the complexity of installation and adjustments, professional installation is recommended to ensure engine safety and performance.​

The HKS Camshaft 2202-RN136 offers significant performance enhancements for the Nissan RB26DETT engine, making it a suitable choice for enthusiasts seeking improved exhaust flow and engine responsiveness in motorsport settings.