SKU: CSN43S
Spec 90-01 Nissan Skyline RB20 Steel Flywheel
The Spec Steel Flywheel fits 1990-2001 Nissan Skyline models with RB20DE and RB20DET engines including R32 R33 and R34 chassis. This billet steel flywheel maintains stock-like weight for everyday drivability while handling high torque loads from upgraded clutches. It ensures consistent shifts and resists warping under heat for reliable street and track use.
Key Features
- Billet Steel Construction: Forged from high-strength steel for maximum durability and resistance to cracking common in aluminum flywheels during prolonged use.
- Precise Weight Balance: 24.5 lbs matches OEM specifications to preserve engine smoothness and starter motor longevity.
- SFI 1.2 Certification: Meets rigorous safety standards for racing applications with proven reliability in drag and circuit events.
- Machined Ring Gear: 144-tooth steel ring gear provides positive starter engagement and long service life.
- Black Zinc Finish: Corrosion-resistant coating protects against rust in harsh conditions while maintaining a professional appearance.
Product Notes
- Designed to pair with Spec clutch kits or OEM replacements for optimal performance.
- Inspect clutch disc and pressure plate during installation for even wear patterns.
- Ships in protective packaging to prevent damage during transit.
Installation Notes
- Professional installation recommended.
- Requires Nissan RB20 engine alignment tool for proper centering.
- Compatible with 225mm clutch diameter and 23-spline input shaft.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1990-1994 | Nissan | Skyline | R32 GTS RB20DET |
| 1990-1994 | Nissan | Skyline | R32 GTS-t RB20DET |
| 1995-1998 | Nissan | Skyline | R33 GTS RB20DE |
| 1995-1998 | Nissan | Skyline | R33 GTS-t RB20DET |
| 1999-2001 | Nissan | Skyline | R34 200GT RB20DE |
Why Choose SPEC Clutch?
- Engineered and manufactured in the USA with racing pedigree from NHRA and SCCA events.
- Backed by limited warranty covering defects in materials and workmanship.
- Precision CNC-machined components ensure exact fitment and balance every time.
Frequently Asked Questions
- Q: Will this flywheel fit my R33 Skyline GTS-t with RB20DET?
A: Yes it bolts directly to 1995-1998 R33 GTS-t RB20DET engines using stock hardware and maintains compatibility with OEM or aftermarket clutches. - Q: What material is used and does it affect pedal feel?
A: Billet steel construction weighs 24.5 lbs similar to stock providing familiar pedal effort and smooth engagement without the harshness of lighter aluminum options. - Q: What warranty applies and is installation covered?
A: SPEC offers a limited warranty against defects professional installation is recommended but not covered contact SPEC for claims process.
Shipping & Handling
- Method: UPS Ground or FedEx
- Availability: In stock – ships same or next business day
- Packaging: Secure foam-lined box 14 x 14 x 4 inches
- Weight: 25 lbs
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