Dual Valve Springs for Nissan Silvia SR20 & SR20DET 16v 2.0L Engines
Set of 16 Dual Valve Springs
SPR-H1022D/SR20
Type: Dual Spring
Outer Spring: OD 30.00mm - ID 21.80mm
Inner Spring: OD 20.50mm - ID 15.50mm
Press.Seat: 90lbs @ 40.5mm
Max Lift: 16.00mm
Coil Bind: 19.50mm
Rate: 11.20mm
SPR-H1021D/SR20
Type: Dual Spring
Outer Spring: OD 30.00mm - ID 21.80mm
Inner Spring: OD 21.30mm - ID 15.50mm
Press.Seat: 106lbs @ 40.5mm
Max Lift: 15.50mm
Coil Bind: 25.00mm
Rate: 13.20mm
Note: These Dual Valve Springs require the use of Supertech Part #'s RET-NSR20/T1 - (Sold Separately)
Our valve springs are computer designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue. We also utilize computer software that allows us to ensure that the harmonics are under control. All Supertech valve springs are made with premium super clean Chrome Silicon Vanadium Steel alloy for higher performance & durability at high rpms. Using high quality steel alloy also provides the added benefit of better structural memory for all of our springs, giving your performance racing engine a serious competitive advantage.
Set of 16 Dual Valve Springs
SPR-H1022D/SR20
Type: Dual Spring
Outer Spring: OD 30.00mm - ID 21.80mm
Inner Spring: OD 20.50mm - ID 15.50mm
Press.Seat: 90lbs @ 40.5mm
Max Lift: 16.00mm
Coil Bind: 19.50mm
Rate: 11.20mm
SPR-H1021D/SR20
Type: Dual Spring
Outer Spring: OD 30.00mm - ID 21.80mm
Inner Spring: OD 21.30mm - ID 15.50mm
Press.Seat: 106lbs @ 40.5mm
Max Lift: 15.50mm
Coil Bind: 25.00mm
Rate: 13.20mm
Note: These Dual Valve Springs require the use of Supertech Part #'s RET-NSR20/T1 - (Sold Separately)
Our valve springs are computer designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue. We also utilize computer software that allows us to ensure that the harmonics are under control. All Supertech valve springs are made with premium super clean Chrome Silicon Vanadium Steel alloy for higher performance & durability at high rpms. Using high quality steel alloy also provides the added benefit of better structural memory for all of our springs, giving your performance racing engine a serious competitive advantage.