ATI Performance Products ATI918482L Super Damper Harmonic Balancer Aluminum - 7.074in 6-Groove

The ATI Super Damper is a patented crankshaft damper designed exclusively for high performance engines, engineered to eliminate harmful torsional vibrations that can damage crankshafts and reduce engine performance. This 7.074-inch diameter harmonic balancer features an aluminum shell construction with a 6-groove serpentine belt design and 10% underdrive configuration, making it ideal for street and race applications on Subaru FA20 and Toyota 4U-GSE engines.

Key Features:

• Dampens torsional crankshaft vibrations at all RPM levels and protects against engine harmonics
• Features aluminum outer shell with a steel inertia weight containing computer-machined grooves to retain proper durometer O-rings dyno tested for each application
• 2-ring design with 2.2 lbs inertia weight for optimal damping efficiency
• Laser-etched timing marks and SFI 18.1 Safety Certification approved for competition use
• Black zinc chromate finish for corrosion resistance
• Direct replacement for the stock OEM damper
• Tunable, rebuildable, and efficient at all RPM ranges

Specifications:

• Diameter: 7.074 inches
• Weight: 6.2 lbs
• Shell Material: Aluminum (Part #916960)
• Hub Material: Steel (Part #916148L)
• Belt Configuration: 6-Rib Serpentine
• 10% Underdrive ratio
• 360-degree timing marks

The ATI Super Damper uses a unique elastomer-based damping system that absorbs and dissipates harmful crankshaft vibrations across the entire RPM range, providing superior protection compared to traditional solid or rubber harmonic balancers. This damper is rebuildable and tunable, ensuring long-term performance and value for serious enthusiasts and racers.