Part Number: R-199-A

Description: Kelford Cams 256 / 260 High Performance Cams

Fitment: 08-14 Subaru WRX / STi

Details:

Kelford Cams R-199-A camshaft set is designed for all Subaru 2.5L Single AVCS EJ25 engines. The cams feature a 256 Intake / 260 Exhaust Duration at 9.55mm / 9.50mm lift. The cams work well on restrictor plate rally cars and street performance engines with stock or small turbochargers. Suits up to 30lb boost and 8000 RPM with our upgraded valve springs.

Specifications:
Cam Lift: Intake = 9.75mm , Exhaust = 9.75mm
Rocker Ratio: Intake = 1 , Exhaust = 1
Net Valve Lift: Intake = 9.55mm , Exhaust = 9.50mm
Advertised Duration @ .25mm: Intake = 256 , Exhaust = 260
Duration @ 1.0mm Valve Lift: Intake = 218 , Exhaust = 222
Timing @ 1.0mm Valve Lift: IVO = 21 ATDC, EVO = 44 BBDC, IVC = 59 ABDC, EVC = 2 BTDC
Suggested Center line: Intake = 130 ATDC , Exhaust = 113 BTDC
Valve Lift @ TDC: Intake = , Exhaust = .83mm
Kelford Cams recommend valve spring upgrade KVS109-STI. Slot/keyway style trigger on rear of intake cams. AVCS on intake only.