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