Part Number: R-199-D

Description: Kelford Cams 282 / 278 Drag Racing High HP Cams

Fitment: 15-21 Subaru STI

Details:

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.

Specifications:
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
Must use shimless buckets. Kelford Cams recommend valve spring upgrade KVS1847-BT.