Supertech Performance SPRK-TS1015/RB25 Dual Valve spring kit 83lbs @35mm SPR-TS1015/RB25 (24) + NVG1015/T1 (24) + Seat-RB25 (12) + Seat-RB25-E (12)
Supertech Performance SPRK-TS1015/RB25 Dual Valve spring kit 83lbs @35mm SPR-TS1015/RB25 (24) + NVG1015/T1 (24) + Seat-RB25 (12) + Seat-RB25-E (12)
Supertech RB25DET Solid 83lb Dual Valvesprings Retainers Kit
Supertech valve springs are made with premium Super Clean Chrome silicon Vanadium Steel alloy for the highest performance and durability at high rpm's. Computer designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue for long durability under extreme conditions. Computer software also allows us to make sure that the harmonics are well under control. The retainers are manufactured with high quality military certified Titanium alloy, CNC machined for a tight fit that will ensure a long durability.
Specifications:
| CAR MAKE | Nissan |
| CAR MODEL | Skyline |
| OUTER SPRING DIAMETER | 27.50mm (OD) / 20.00mm (ID) |
| MAX NET LIFT | 14.30mm |
| INNER SPRING DIAMETER | 20.00mm (OD) / 15.20mm (ID) |
| SEAT PRESSURE | 83@35 |
| OPEN PRESSURE | 216!11 |
| RATE INCH | 12.10 lbs/mm |
| COIL BIND | 20.70mm |
| ENGINE SPECIFICATIONS | RB25DET Solid Lifter |