Kelford Cams R-199-D cams are designed for all Subaru 2.5L Single AVCS EJ25 engines. The cams feature 282 / 278 duration, 11.70mm / 11.25mm Lift. The racing camshafts are well suited for competition engines using larger volume intake manifolds, ported heads and up to 40lb boost and 9000 RPM with upgraded valve springs.

• Cam Lift: Intake = 11.70mm , Exhaust = 11.25mm
• Rocker Ratio: Intake = 1 , Exhaust = 1
• Net Valve Lift: Intake = 11.50mm , 11.00mm
• Advertised Duration @ .25mm: Intake = 280 , Exhaust = 278
• Duration @ 1.0mm Valve Lift: Inlet = 240 , Exhaust = 236
• Timing @ 1.0mm Valve Lift: IVO = 10 ATDC , EVO = 51 BBDC, IVC = 70 ABDC, EVC = 5 ATDC
• Suggested Center line - Intake = 130 ATDC , Exhaust = 113 BTDC
• Valve Lift @ TDC: Intake = 0.25mm , Exhaust = 1.23mm
  
  

Notes:

• Due to the cam profiles, head clearancing will need to be done for installation.
• Kelford Cams recommend valve spring upgrade KVS1847-BT
• Must use Shimless Buckets