Ferrea Valve Spring- Hyundai DUSPR 28 20.8 85 32
Our Ferrea Valve Springs are processed with premium-grade alloy and feature special thermal treatment. Our advanced spring design and material specifications has uniform load & stress distribution even in most extreme racing environment.
- Our beehive design spring offers additional durability in all high revving street performance and mid-race applications at an affordable price.
- The dual spring technology enables you to use in high lift camshafts and extreme high RPM.
| Type/Material/Application | Dual Spring - Turbo Special Alloy |
| O.D. | 20.8 mm
28.0 mm |
| I.D. | 15.88 mm
20.8 mm |
| Seat Press. | 85 lbs
@32mm |
| Open Press. | 200 lbs
@22mm |
| Rate Inch | 291 lbs |
| Coil Bind | 17 mm |
| Max Net Lift | 19 mm |
Note:
- This Spring requires Ferrea Titanium Retainer # E11062 and Ferrea Spring Seat Locator # SL1050
- (Discard OEM Spring Seat Locator)
Menu 