ATI Performance Products ATI916144 Super Damper Harmonic Balancer

The ATI Performance Products ATI916144 is a patented Super Damper harmonic balancer engineered exclusively for high-performance and racing engines. ATI's Super Damper series is widely regarded as the gold standard in crankshaft vibration damping, delivering measurable gains in horsepower and torque by eliminating harmful torsional crankshaft vibrations that rob power and accelerate engine wear.

Key Features:

• Patented multi-ring elastomer design — computer-machined grooves retain precisely durometer-matched O-rings, dyno-tested for each specific application
• Exceeds SFI 18.1 specifications — certified for NHRA and IHRA sanctioned competition
• High-strength construction — inner and outer shells available in aluminum or steel with a steel inertia weight for maximum durability
• 360-degree timing degree markings — machined directly into the shell for precise ignition timing reference
• Black zinc chromate finish — corrosion-resistant coating for long service life
• American-made quality — manufactured in-house at ATI's Maryland facility

Unlike factory rubber-bonded dampers that degrade over time and offer no protection under high-RPM or boosted conditions, the ATI Super Damper uses a replaceable elastomer O-ring system that maintains consistent damping characteristics throughout its service life. This design protects crankshafts, bearings, and valvetrain components from destructive harmonic resonance, making it an essential upgrade for any serious street performance or race engine build.