ATI Performance Products ATI916985 Super Damper Crankshaft Harmonic Balancer

The ATI Performance Products ATI916985 Super Damper is a high-performance crankshaft harmonic balancer engineered to reduce torsional vibration and protect your engine from damaging harmonic frequencies. ATI's Super Damper line is trusted by professional racers and performance enthusiasts worldwide, offering superior vibration damping compared to OEM rubber-bonded balancers.

Unlike factory dampers that rely on a bonded rubber ring — which can deteriorate, slip, and lose calibration over time — the ATI Super Damper uses a precision-tuned elastomer ring retained in a machined billet aluminum housing. This design maintains consistent damping characteristics under extreme heat and RPM conditions found in high-performance and racing applications.

Key Features:

• Precision-machined billet aluminum construction for reduced rotating mass
• Elastomer damping ring for consistent, long-lasting torsional vibration control
• SFI 18.1 specification compliance for sanctioned racing events
• Laser-engraved timing marks for accurate ignition timing
• Multiple accessory drive ring options available (sold separately)
• Resists heat, oil, and chemical degradation better than OEM rubber dampers
• Direct bolt-on fitment — no modifications required

The ATI916985 Super Damper is built to exacting tolerances and is SFI-certified, making it legal for use in many sanctioned drag racing, road racing, and circle track events. Whether you're building a street/strip machine or a dedicated race engine, ATI's Super Damper is a proven solution for crankshaft protection and longevity.