Description
Super Damper® Harmonic Dampers
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
- Nissan Dampers
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ALUMINUM SHELL |
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OUTER DIAMETER |
7.053" OD |
7.074" OD |
6.78" OD |
6.325" OD |
5.5" OD |
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2 RING |
3 RING |
2 RING |
3 RING |
2 RING |
3 RING |
2 RING |
3 RING |
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TOTAL WEIGHT |
5.25 lbs |
6.25 lbs |
5.45 lbs |
5.00 lbs |
4.5 lbs |
4.3 lbs |
3.90 lbs |
3.30 lbs |
3.60 lbs |
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DAMPER ASSEMBLY PART NUMBERS (includes crank hub) |
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RB26 |
STREET: Up to 750HP |
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918599 |
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STREET: 1000HP |
917752 [2] |
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STREET: Up to 750HP |
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918598 |
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STREET: 1000HP |
917753 [2] |
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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).
Nissan Dampers
[1] 16% UD for power steering. AC, water pump and alternator are all 6%UD.
[2] Damper includes new billet aluminum water pump pulley for clearance. AC is a 25% OD. Do not use a belt if racing! 3% UD power steering, 10% UD for alternator.