ATI Nissan RB26 R33 R34 1000hp Super Damper Harmonic Damper

ATI Super Damper Harmonic Damper (Includes Crank hub) Part Number: ATI 917753

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 360degree 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 Skyline RB26DETT RB26 2.6L, R33 & R34; P/S, A/C. Alt Street (600HP-1000HP)

• Aluminum Shell
• 7.053" OD
• 2 Ring
• Total Weight 5.25lbs
• Inertia Weight 3.50lbs

Part # 917753

Please note: Most OEM cranks are held to +/- .0002" while most aftermarket cranks are held to +/- .0005." Hub bores are tight to accommodate aftermarket cranks and due to this honing may be required as part of the fitting process.