ATI Super Harmonic Damper 750 HP for Nissan R33 R34 RB26

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
• Tunable, rebuildable, and extremely efficient at ALL RPM
• Laser engraved 360° 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).

STREET: Up to 1000 HP Skyline R33 R34 w/RB26 - 4 Groove 3 Ring DIRECT BOLT ON U/D 5.67" OD

16% UD for power steering. AC, water pump and alternator are all 6% UD.