SPRINGVILLE, NY [Dec. 7, 2025] – Fluidampr announces the release of a performance crankshaft damper for Nissan’s SR20 engine family, including the SR20DE found in 1995–1998 200SX models regaining popularity in grassroots drifting and street performance, and the SR20DET used in various turbocharged applications globally. The part number is 630931. The damper delivers superior crankshaft torsional vibration control over stock and provides greater durability and performance when engine modifications are made.
Crankshaft torsional vibration analysis was conducted by parent division and automotive original equipment damper manufacturer, Vibratech TVD at Jimmy Oakes Garage in Wallingford, CT. Testing showed an average 12% reduction in crankshaft torsional vibration across the RPM range compared to a new old stock OEM elastomer damper. “We did see improvement across the board and got a more consistent smooth line. That’s one of the main goals, is not only bringing the amplitudes down but getting it to be consistent. We lost a lot of the big spikes and overall brought everything down,” explains Vibratech TVD engineer, Will Murphy to Jimmy Oakes, race car builder, famed motorsports content creator, and owner of Jimmy Oakes Garage in an associated damper development video.[1]
The Nissan SR20 DE/DET damper measures original equipment size at six and three-eighths inches outer diameter and integrates both the inner and middle accessory drive pulleys. The outer air conditioning drive pulley is removable for race application preferences. Fluidampr performance dampers are designed to last the life of the engine. No rebuilds or tuning are required. In addition, RoHS compliant black zinc coating and laser engraved SFI 18.1 credentials maintain a quality appearance in harsh racing environments.
Fluidampr Performance Damper Benefits
- SFI 18.1 certified. The industry standard for harmonic damper safety.
- Protects against crankshaft torsional vibration across the RPM range.
- Reduces the risk of crankshaft failure and wear on critical engine parts.
- Recovers torque and horsepower lost to vibration.
- Made in the USA.
The new Fluidampr performance damper for Nissan SR20 DE/DET engines is available now through quality parts distributors, retailers and professional engine builders.
About Fluidampr
Fluidampr performance dampers protect your engine from destructive crankshaft torsional vibration. Install early for durability and optimum performance. Premium viscous damper technology provides broad range protection across the entire RPM range. No tuning or maintenance required. Precision balanced CNC machined high-grade steel components. Corrosion resistant black RoHS finish with laser engraved markings. Applications include popular domestic, import and diesel engines. Available through quality performance shops and parts distributors. For more information call (716) 592-1000 or visit www.fluidampr.com. SFI 18.1 certified. Made in USA.
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Fluidampr has no connection or affiliation in any way with Nissan. Reference to any trademarked product(s), name(s) or OEM number is intended solely for reference to the usage for that Fluidampr part. No products were manufactured by the previously mentioned companies or their suppliers.
[1] “We got a NEW PROTOTYPE product and PUT IT TO THE TEST!!” Jimmy Oakes Garage. Sept. 2025. https://www.youtube.com/watch?v=1HK3vvmXssA&t=13s