The HKS Camshaft 2202-RN137 is designed specifically for the Nissan RB26DETT engine, particularly for the BNR34 Skyline GT-R model. It is part of the Step 2 series, intended for high-performance motorsport applications. This camshaft enhances exhaust flow and improves engine performance, particularly at higher RPMs.

Key Features:

• Duration and Valve Timing:

  • Exhaust Duration: 264°
  • Valve Lift: 10.0 mm
  • Maximum RPM Range: Approximately 9700 RPM (depending on engine condition)
  • Valve Timing:
    • Open (BTDC): 113°
    • Close (ATDC): 41°
    • Total Cam Duration (at 0mm valve lift): 292°
    • Total Cam Duration (at 1mm valve lift): 228°

• Performance Enhancements:

  • Increased Valve Lift and Duration: These modifications allow for improved airflow and combustion efficiency, which in turn leads to greater power output, especially at high RPMs.
  • Optimized for Motorsport: Developed with closed-circuit racing in mind, this camshaft enhances throttle response and overall engine performance under heavy-load conditions.

• Compatibility:

  • Engine Type: Nissan RB26DETT
  • Vehicle Model: Nissan Skyline GT-R BNR34
  • Valve Springs Required: HKS Step 2 strengthened valve springs (Part No. 22001-AN001) for safe operation at high RPMs.

• Installation Requirements:

  • Cylinder Head Modification: The cylinder head must be modified to provide a 0.5–1.0 mm clearance between the camshaft lobes and the head to ensure smooth operation.
  • Valve Clearance Adjustment: Because of the smaller base circle diameter, valve clearance adjustments are necessary during installation.

• Supporting Modifications:

  • Valve Springs: HKS Step 2 strengthened valve springs are required to handle the increased lift and higher RPMs without causing engine damage.

• Additional Notes:

  • Motorsport Use Only: This camshaft is designed primarily for closed-circuit racing and high-performance applications. It may not be suitable for street use, depending on local regulations.
  • Professional Installation Recommended: Given the complexity of installation, including valve clearance adjustments and head modifications, professional installation is highly recommended to ensure proper setup and prevent engine damage.

The 2202-RN137 camshaft is ideal for those looking to maximize performance in motorsport environments, offering improved exhaust flow and higher power outputs for the Nissan RB26DETT engine.