Description
ATI has added a crankshaft damper for the earlier 4G63s to their lineup, designed for higher hp and high-rev applications.
Fits 4G63/4G64 engines in the 1990-1999 GVR4 and DSM cars.
Replaces both the OEM harmonic balancer and the crankshaft timing/balance shaft sprockets.
Please note that these are 12% larger than the OEM damper at 6.325″ diameter, and the timing belt cover will have to be slightly trimmed to clear the ATI inner hub diameter.
Stats from ATI:
- ATI’s Super Damper for Eclipse DSM 4G63T, 4G64T engines
- Fits 1st Gen Eclipse, Galant, Eagle Talon, and Plymouth Laser
- High horsepower street & race use
- Dampens torsional crankshaft vibrations at all RPM levels
- Protects against engine harmonics
- 6.325” diameter, 12% overdriven
- Direct replacement for the stock OEM damper
- Custom timing gear hub replaces the stock timing gear
- Stock timing cover must be trimmed for hub clearance
- Laser-etched timing marks at TDC, 5°, 10°, 15°, 20°, 25°, 30°
- SFI 18.1 Certified for competition use
- Shell Material: 6.325″ Aluminum, two 4-rib drives, 12% Overdriven
- Hub Material: Steel with Timing Gear drive, #916025, 1.263″ Bore
- Inertia Weight: 2.4 lbs, 3 ring
Installation instructions can be found here: https://www.atiracing.com/instructions/Super-Damper.pdf


