ATI Performance Products ATI916970 Super Damper Harmonic Balancer

The ATI Performance Products ATI916970 Super Damper is a high-performance harmonic balancer engineered to absorb and dissipate destructive crankshaft torsional vibrations in performance and racing engines. ATI's Super Damper series is the gold standard in crankshaft vibration damping, trusted by professional racers and engine builders across drag racing, road racing, and high-performance street applications.

Unlike OEM rubber-bonded balancers that degrade over time and lose effectiveness under high-RPM stress, ATI Super Dampers utilize a precision-machined steel housing with inertia rings and a specially formulated elastomeric O-ring damping system. This design maintains consistent damping effectiveness across a broad RPM range and under extreme heat cycles — protecting your crankshaft, bearings, and engine internals from fatigue failure.

Key Features:

• Precision-machined billet steel construction for superior durability and balance
• O-ring damping system provides consistent vibration control across all RPM ranges
• Will not sling, delaminate, or fail like OEM rubber-bonded balancers
• SFI 18.1 specification certified for sanctioned racing use
• Laser-etched timing marks for accurate ignition timing
• Designed for easy installation with standard harmonic balancer tools
• Rebuildable and re-indexable for long service life

ATI Super Dampers are manufactured in the USA and are available with a variety of pulley and accessory drive configurations. The ATI916970 is purpose-built for specific high-performance engine applications, delivering the crankshaft protection and precise timing reference required in demanding performance environments.