ATI Performance Products ATI918449 Super Damper Harmonic Balancer

The ATI Performance Products ATI918449 Super Damper is a high-performance harmonic balancer engineered to eliminate torsional crankshaft vibrations in demanding race and street performance applications. As part of ATI's patented Super Damper line, this unit is built to exceed SFI 18.1 specifications and is trusted by professional racing teams worldwide.

The Super Damper uses a proven elastomer-based damping system — effectively two dampers in one — with a steel inertia weight featuring computer-machined grooves that retain precision durometer O-rings, dyno-tested specifically for each application. The O-ring design has been validated to over two million cycles in professional racing competition, making it one of the most durable harmonic balancer designs available.

Key Features:

• Patented Super Damper design eliminates torsional crankshaft vibration
• Exceeds SFI 18.1 specifications for sanctioned racing
• Steel inertia weight with computer-machined O-ring retention grooves
• Inner and outer shells available in aluminum or steel construction
• Black zinc chromate finish for corrosion resistance
• Computer-controlled, laser-engraved 360-degree timing marks for precise ignition timing
• Tunable and rebuildable — new O-rings restore unit to factory specification
• Effective across the full RPM range including high-RPM performance engines (6,000+ RPM)

The ATI918449 Super Damper is a direct-fit performance upgrade that protects your engine's crankshaft from harmful torsional vibrations while providing the precision timing reference marks required for high-performance tuning. Whether building a dedicated race engine or a high-horsepower street machine, ATI's Super Damper delivers proven protection and performance.