Supertech apply more than 30 years of experience in the development of each and every Supertech racing valve we sell. Combine that experience with state of the art equipment such as ultrasonic tests, x-rays, laser measurement equipment, and applications like computerized Finite Element Analysis (FEA) and it is no wonder why Supertech has some of the best performance products on the market.
Dual Valve Springs
Seat Pressure: 85 @ 33.5
Open Pressure: 210 @ 10
Max Lift: 15.00mm
Coil Bind: 18.50mm
Outer Spring OD: 30.20mm
Outer Spring ID: 22.20mm
Inner Spring OD: 22.20mm
Inner Spring ID: 16.80mm
Rate: 12.5
ENGINES
B16A, B17A, B18C1, B18C5, K20A2, K24A2, K24Z7 DOHC VTEC
M42, S42
KA24DE DOHC
FA20, FA20F (DIT)
FR-S 4U-GSE