ATI Performance Products Super Damper Serpentine Harmonic Balancer SFI

The ATI Performance Products Super Damper Serpentine Harmonic Balancer (also called a harmonic damper or crankshaft damper) reduces damaging crankshaft torsional vibration in street, performance, and racing engines. The belt grooves are machined directly into the outer shell. This lets the damper work as the serpentine drive pulley and as a vibration damper in one piece.

Key Features:

• Patented Super Damper design with serpentine belt grooves machined into the outer damper shell
• SFI 18.1 rated for safety and performance in demanding applications
• Elastomer-type damper construction that controls crankshaft harmonics
• Degree markings around the full 360 degrees to help with timing and engine setup
• Aluminum, steel, or aluminum-shell-with-steel-hub construction, depending on the part number
• Internal-balance designs in the line
• Groove counts and diameters vary by part number. The line includes standard 6-groove drive systems, and 8- and 10-groove versions are available for supercharger or turbo applications.

Reducing crankshaft vibration helps protect the bearings and other rotating parts, and it can support smoother running and longer engine life. ATI Performance Products builds these dampers for engine builders and enthusiasts who want a high-quality, SFI-certified harmonic balancer for serpentine-belt engines.