Ross Performance Parts Nissan VG30E Z31 / VG30ET Z31 (W Series) Race Series Harmonic Damper w Integrated 12T Crank Trigger Disc:

Designed for a race application
Rated for 1,000hp
Integrated 12 Tooth Crank Trigger
Water pump & Alternator pulley’s under-driven for protection at high rpm
Features 17.5% under-driven power steering pulley to protect power steering pump at high RPM

Note:

Race Series and Gold Series do not have provision for crank driven air conditioning.
Power steering is 10.5mm forward of OEM – Power Steering Pump Pulley included.

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