Super Damper Harmonic Damper (Street) Part Number: ATI 918599
The patented ATI Super Damper is the only damper designed exclusively for high performance engines.
- Eliminates torsional crankshaft vibrations
- Exceeds SFI 18.1 specs
- Black zinc chromate finished
- Laser engraved 360¶ø timing marks
Inner and outer shells are available in aluminum or steel, and contain a steel inertia weight. This inertia weight has six (2-ring design) or eight (3-ring design) computer machined grooves to retain the proper durometer O-rings (dyno tested for each application).
Specifics: Nissan R32 RB26, STREET: Up to 500HP, Direct Bolt-On, U/D
- Aluminum Shell
- 5.5" OD
- 3 Ring
- Total Weight 3.60lbs
- Inertia Weight 2.27lbs
*Notes:  16% UD for power steering. AC, water pump and alternator are all 6%UD.