Kelford Cams - EJ20/25 Dual AVCS Camshafts
This range of Kelford Camshafts to suit the Subaru EJ20/25 WRX STi Dual AVCS features the same successful lobe designs used on the earlier engines. The Dual AVCS on this engine is a great tool for the tuner to provide a greater operating range. The Kelford range of camshafts feature a unique camshaft design technology called œICE or Improved Combustion Efficiency. This œICE split duration design has in turn created a significant combustion efficiency gain for these engines. No other aftermarket camshaft company offers this unique technology.
Please note that the correct valve spring selection will depend on the installed height in your particular cylinder heads. Please contact us to discuss the correct valve spring selection.
In addition to our catalogue range, we can manufacture custom cams to your specifications, or design a profile to suit your specific application.
These cams are easily identified by the triggers on the rear of the cams.
220-A Camshaft Set
256&252/260 Degrees advertised duration. 9.55mm&9.55mm/9.50mm lift.
EJ257 Stage 1 Camshafts - 256° high torque cams to suit near stock EJ257 engine. Excellent throttle response. Ideal in 36mm restrictor rally classes. Suits small frame 46-54mm turbo. Kelford Cams recommend valve spring upgrade KVS109-STI.
220-B Camshaft Set
264&260/260 Degrees advertised duration. 10.70mm&10.20mm/10.20mm lift.
Subaru EJ257B High Lift 264° Race and Rally camshafts. Great throttle response and improved mid-range power. Suits turbo sizing 54-60mm. Kelford Cams recommend valve spring upgrade KVS1847-BT.
220-C Camshaft Set
272&268/268 Degrees advertised duration. 11.30mm&10.50mm/10.50mm lift.
Subaru Sti EJ257B High lift 272° racing cams suitable for most motorsport applications. Suits a well built competition EJ257 engine running 58-66mm turbo. Great with E85 fuel. Requires cylinder head modification to fit high lift cam lobes. Kelford Cams recommend valve spring upgrade KVS1847-BT.
220-D Camshaft Set
282&278/278 Degrees advertised duration. 11.50mm&11.00mm/11.00mm lift.
High lift 282° racing camshafts. Best suited to wide open throttle and high rpm power motorsport applications. Suits well built competition EJ257 engine running 64-72mm turbo and larger intake manifold. Great with E85 fuel. Requires cylinder head modification to fit high lift cam lobes. Kelford Cams recommend valve spring upgrade KVS1847-BT.
220-E Camshaft Set
292&288/294 Degrees advertised duration. 11.00mm&11.00mm/11.00mm lift.
290° camshafts to suit high boost, high rpm Drag Racing EJ257 engine. Ported head with +1mm valves. 67mm+ turbo. Fuel type E85 or methanol. Must be run with fixed cam timing, AVCS delete. Kelford Cams recommend valve spring upgrade KVS1847-BT.