ATI Performance Products ATI918456 Super Damper Harmonic Balancer Underdrive - 7.074 10%

The ATI Performance Products ATI918456 Super Damper is a high-performance harmonic balancer engineered to protect sport compact engines from destructive torsional crankshaft vibrations at all RPM levels. This precision-manufactured damper features elastomer construction that provides superior vibration dampening compared to factory dampers and non-dampened pulleys.

Key Features:

• 7.074-inch outside diameter with aluminum and steel construction
• 10 percent underdrive design with 4-rib serpentine pulley (5.50-inch diameter)
• SFI 18.1 certified for competition use
• Laser-etched 360-degree timing marks for precise tuning
• Black zinc chromate finish for corrosion resistance
• Steel hub with 2-ring elastomer design
• Single keyway configuration
• Internal balance type

Specifications:

• Total weight: 5.00 lbs
• Inertia weight: 3.40 lbs
• Mounting hardware not included

This Super Damper exceeds SFI 18.1 Safety Certification standards, making it ideal for both street performance and racing applications. The underdrive pulley design reduces parasitic drag on accessories, helping to free up additional horsepower while the elastomer dampening system protects your crankshaft and engine internals from harmful harmonic vibrations.