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Have not installed yet but appears to be good

Enhance the performance and reliability of your Nissan Skyline with the Fluidampr Performance Damper (Part #610921)—engineered specifically for R32 RB20DET and R34 RB25DET NEO engines. Stock dampers wear out over time, and increased engine performance can amplify destructive crankshaft torsional vibrations. The Fluidampr viscous damper reduces these harmful vibrations, helping to protect main bearings, timing gears, and crankshafts while improving valvetrain accuracy and overall engine stability.
Unlike traditional rubber-based dampers, Fluidampr automatically adapts to engine modifications and continuously self-tunes across the entire RPM range. Constructed with precision-machined, computer-balanced components, this damper requires no tuning or maintenance—delivering long-term, consistent performance.
Reduces destructive crankshaft torsional vibrations
Extends life of main bearings, timing components, and crankshaft
Improves valvetrain accuracy and stability
Automatically adapts to performance upgrades
CNC-machined and computer-balanced construction
Maintenance-free operation
SFI 18.1 certified for racing and performance use
| Specification | Detail |
|---|---|
| Part Number | 610921 |
| Fitment | R32 Skyline RB20DET / R34 Skyline RB25DET NEO |
| Bore Diameter | 1.1800" |
| Degree Marking Range | TDC, 6 marks (5° increments) |
| Degree Markings | Engraved |
| Engine Balance | Internal |
| Damper Finish | Black Zinc Chromate |
| Pulley Finish | Hard Coat Anodized |
| Keyway | Yes |
| Length | 2.765" |
| Damper Material | Steel |
| Pulley Material | Aluminum |
| Pulley Groove Quantity | 4 rear, 4 middle, 4 front |
| Mounting Hardware Included | No |
| Outside Diameter | 6-1/8" |
| Safety Rating | SFI 18.1 |
| Weight / Rotating Weight | 10.5 lbs / 6.9 lbs |
Nissan R32 Skyline RB20DET
Nissan R34 Skyline RB25DET NEO