ATI Performance Products ATI918888 Super Damper Harmonic Balancer Steel SFI - 3-Ring 18.1

The ATI Performance Products ATI918888 Super Damper is a high-performance harmonic balancer engineered specifically for demanding racing and high-performance engine applications. This patented crankshaft damper effectively eliminates torsional crankshaft vibrations that can damage engines at high RPM, making it an essential upgrade for serious performance builds.

Key Features:

• Steel construction with 3-ring design for superior damping performance
• Shell weight of 9.00 lbs for optimal inertia control
• 7.800-inch outside diameter with single keyway design
• SFI 18.1 certified for NHRA and IHRA competition use
• Laser-engraved 360-degree timing marks for precise engine tuning
• Elastomer construction with computer-machined grooves retaining dyno-tested O-rings
• Black zinc chromate finish for corrosion resistance
• External balance configuration
• Tunable and rebuildable design for long-term serviceability

ATI Super Dampers feature steel inner and outer shells containing a steel inertia weight with eight computer-machined grooves that retain proper durometer O-rings, each dyno-tested for the specific application. This advanced design ensures extremely efficient damping at all RPM ranges, protecting your crankshaft and engine components from destructive vibrations. Whether you're running at the dragstrip or building a high-horsepower street engine, the ATI918888 delivers professional-grade protection and performance. Note that mounting hardware is not included.