Bottom line is - you want a damper that is effective at multiple RPM ranges! You may have seen dampers that appear to be machined copies of the OEM pulley, these are static weighted, single striped and BONDED dampers that are only capable of being tuned for a single RPM range.
The ATI Torsional Super Damper® - the unconventional, unbonded elastomer Super Damper™ that is actually 2 dampers in 1 diameter.
In contrast, the ATI Super Damper employs a combination of O-rings and a unique, full-captured inertia ring to dampen harmful crankshaft vibrations. This configuration allows the damper to actually absorb crankshaft harmonics over a wide rpm range. It is not uncommon to find a Super Damper on race engines exceeding 9,000 rpm.
ATI has designed a 5.5” damper - for the '94 - '05 Mazda Miata engine for high horsepower street & race use. This new design is a direct replacement for the stock OEM damper. The heart of this unit is the tried and true “damper within a damper” design that has put ATI ahead of the rest. The outer shell is machined to utilize the factory serpentine belt set-up
No trigger wheel: For 1.6 or 1.8 engine using CAS
Modified 4 tooth trigger wheel: For 96-05 using OEM triggering or aftermarket ECU that supports OE wheels.
A quick-start guide to your ATi Damper when using a trigger wheel. Belt guide installation. Product can be purchased at: http://fab9tuning.com/ati-harmonic-balancer-hardware-keyway/