ATI Performance Products ATI916268 Super Damper Harmonic Balancer

The ATI Performance Products ATI916268 Super Damper is a high-performance harmonic balancer engineered for racing and high-RPM street applications. ATI's patented Super Damper design is the only crankshaft damper developed exclusively for performance engines operating at 6,000+ RPM, providing superior crankshaft harmonic dampening compared to OEM rubber-bonded balancers.

Key Features:

• Patented ATI Super Damper design with non-bonded steel inertia weight retained by precision-durometer O-rings
• Inner and outer shells constructed of aluminum and/or steel for strength and weight optimization
• Computer-controlled, laser-engraved 360-degree timing marks for precise ignition timing
• Black zinc chromate finish for corrosion resistance and professional appearance
• Exceeds SFI 18.1 certification requirements for sanctioned racing competition
• Tested to over two million cycles in Winston Cup and drag racing competition
• Eight computer-machined grooves on inertia weight retain O-rings at correct durometer for consistent damping across RPM range

Unlike OEM harmonic balancers that rely on a rubber bond between the hub and inertia ring — a bond that degrades over time and under high heat — the ATI Super Damper uses precision elastomer O-rings to couple the inertia weight, maintaining consistent and tunable dampening characteristics throughout the life of the component. The result is reduced crankshaft stress, improved engine durability, and measurable gains in horsepower and torque by allowing the engine to run closer to its true harmonic balance point.

The ATI916268 Super Damper is sold individually and is designed for direct bolt-on installation using the OEM crank bolt and washer. A proper harmonic balancer installation tool is recommended for press-fit hub applications.