ATI Performance Products ATI917223 Super Damper Harmonic Balancer Internal Balance - 3-Ring

The ATI Performance Products ATI917223 Super Damper is a high-performance harmonic balancer engineered specifically for demanding racing and street performance applications. This patented damper design effectively eliminates torsional crankshaft vibrations, helping to protect your engine while maximizing horsepower and torque output across the entire RPM range.

Key Features:

• 3-ring elastomer design with eight computer-machined grooves to retain proper durometer O-rings
• Aluminum and steel construction with steel inertia weight for optimal damping performance
• 7.074-inch outside diameter with internal balance configuration
• Fits 1.600-inch crankshaft snout diameter
• 2.280-inch counterbore designed for dry sump systems
• SFI 18.1 certified for racing competition
• Laser-engraved 360-degree timing marks for precise tuning
• Black anodized finish for durability and corrosion resistance
• Three bolt pulley mounting holes with single keyway
• Tunable and rebuildable design for long-term performance

This damper weighs approximately 5.45 lbs with an inertia weight of 3.70 lbs, providing the mass necessary for effective vibration damping. The counterbore accepts drive mandrel and bolts to the three pulley mounting holes for dry sump accessory drive systems. Mounting hardware is included. Each damper is dyno-tested to ensure proper O-ring durometer selection for the specific application, and exceeds SFI 18.1 specifications for use in sanctioned racing.