Supertech valve spring kit SPRK-H1021S / SR20 Nissan SR20DET
Set of valve springs
30,84kg/40,5mm (68 @ 40,5)
Set of valve springs 30,84kg/40.5 SPR-H1021S / SR + RET-NSR20 / T1 + OEM SEAT
With the help of Supertech valve springs & titanium valve spring retainers, higher RPM's can be run. It also eliminates valve flutter at high RPM's. At high RPM's, the rocker arms can break and the valve springs can jam. This can lead to engine damage! The Supertech valve springs have an extra adjusted spring rate.
Advantages:
- The valve train becomes lighter thanks to the titanium valve spring retainers
- The motor revs up faster
- Higher motor RPM's can be run
- The valve train becomes more stable during power increases
Likewise, we offer the full range of Supertech:
Valve keepers, mechanical tappets (rigid tappets) with matching shims and forged pistons.
Make: Nissan
Fits: Nissan SR20DET
Outer spring external diameter: 30,00mm
Outer spring internal diameter: 21,80mm
Inner spring external diameter: SINGLEmm
Pressure valve seat: 30,84kg/40,5mm
Pressure seat: 72,57kg/10,0mm
Max. lift: 15,00mm
Coil bind (under stress): 22,70mm
Rate in lbs./mm: 9,30
retainers: RET-NSR20/T1
Seat locator: Factory seat
Supertech's valve springs are made of an extreme pure chrome-silicon-vanadium-steel alloy to assure a very good durability for performance motors with high revolutions. They are developed with the use of computer simulations to prevent material fatigue under extreme conditions. The holder are made of a certified titanium alloy and CNC milled for the perfect fit to provide a long durability.
Please note: This product is a high quality performance replacement for the original Nissan part.
Features
- Vehicle manufacturer: Nissan
- Engine Part: Spring Kits
- Item weight: 0,40 kg
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