The ATI Super Damper® for the Nissan GT‑R R35 VR38DETT is a high‑performance harmonic balancer designed to control and eliminate torsional crankshaft vibrations across the entire RPM range. As engine power, boost, and RPM increase, controlling crankshaft harmonics becomes critical to engine reliability and longevity.

ATI Super Dampers® are SFI 18.1 certified for competition use and are widely trusted in high‑horsepower street, track, and race GT‑R builds. This damper is a direct replacement for the factory crank pulley and is precision‑engineered specifically for the VR38DETT engine.

Key Features

• Designed specifically for Nissan GT‑R R35 VR38DETT engines
• Reduces harmful torsional crankshaft vibrations
• SFI 18.1 certified for competition use
• Precision‑machined aluminum shell with steel hub
• Laser‑etched 360° timing marks for accurate engine timing
• Direct bolt‑on replacement for the factory crank pulley
• Made in the USA

Available Drive Options

• 918654 – Factory Drive (OEM Size)
  Best choice for most street‑driven and track‑focused GT‑Rs. Maintains OEM accessory speeds, ensuring full alternator output, water pump efficiency, and air conditioning performance. Ideal for daily‑driven cars, road racing, and endurance applications.
• 918641 – 5% Underdriven Pulley
  Recommended for high‑performance builds to reduce parasitic losses. Slows accessory drive speed by ~5%, freeing power at high RPM while maintaining effective damping. Ideal for performance street, drag, and roll‑racing applications focused on maximum efficiency.

Application

• Nissan GT‑R R35
• Engine: VR38DETT

The ATI Super Damper® is an essential upgrade for any VR38DETT engine operating beyond factory power levels, providing critical protection against crankshaft harmonics under high load and high RPM conditions.