Kelford Cams 272/268 Camshaft Set 2008-2021 STI Dual AVCS Certified

Description

Kelford’s Stage 2 220-C camshaft set is profiled for the street and racing. Stage 2 cams feature a 272 degree intake and 268 degree exhaust cam, the high lift measures 11.30mm and 10.50mm. The camshafts require cylinder head clearancing for fitment and must use shimless buckets.

The Subaru STI EJ257B engine features dual AVCS (Active Valve Control System). This feature enables the builder to extract massive power while retaining great low end driveability. The Kelford range of camshafts feature a very new camshaft design technology termed ‘ICE’. This design technique results in a efficiency gain for these engines. No other aftermarket camshaft company offers this approach for the EJ25 engine platform.

Specifications:

• Cam Lift: Intake = 11.50mm , Exhaust = 10.75mm
• Rocker Ratio: Intake = 1 , Exhaust = 1
• Net Valve Lift: Intake = 11.30mm , Exhaust = 10.50mm
  
• Advertised Duration: Intake = 272 , Exhaust = 268
• Duration @ 1.0mm Valve Lift: Intake = 232 , Exhaust = 228
• Timing @ 1.0mm Valve Lift: IVO = 14 ATDC , EVO = 60 BBDC , IVC = 66 ABDC , EVC = 12 BTDC
• Suggested Centerline: Intake = 130 ATDC , Exhaust = 126 BTDC
• Valve Lift @ TDC: Intake = 0.12mm , Exhaust = 0.17mm

Notes:

• Kelford Cams recommend valve spring upgrade KVS1847-BT
• Requires cylinder head modification to fit
• Must have shimless buckets