The Kelford range of camshafts for the BMW M Series S58 engine have been developed and tested with proven results.

Stage 1 288/268:

High Performance BMW S58 Engine

288°/268° | 10.30mm/10.15mm Valve Lift

BMW M Series camshafts designed for S58 engines with bolt on intake, exhaust and turbo upgrades. For engines producing around 600-850hp running a 60-68mm turbo.

Maintains full use of Valvetronic and Dual VANOS for great throttle response and wide power band.

Valve Spring Upgrade is Required, Kelford Cams recommend valve spring KVS58-BT.

Stage 2 292/280:

High Performance BMW M Series S58 Engine

BMW M Series Racing Camshafts professionally built BMW S58 engines making 800hp-1400hp. Turbo sizing 66-75mm. Great with aftermarket intake plenums.

Still maintains full use of Valvetronic and Dual VANOS. Can run Valvetronic locked in full open position when using an aftermarket throttle body.

Valve Spring Upgrade Required, Kelford Cams recommend valve spring KVS58-BT.
Please check intake intermediate rockers for clearance to the new racing cam lobe, OEM pressed steel rockers have sharp edges which may foul on the bigger cam lobe. Trim/deburr as necessary.

Stage 3 298/288:

Professionally Built Engines Only

298°/288° | 10.40mm/10.80mm Valve Lift

BMW M Series Stage 3 drag racing cams designed for professionally built S58 engines producing 1400hp+. Turbo sizing 76mm+ on high boost. Ethanol blend or methanol.

Valve Spring Upgrade is required, Kelford Cams recommend valve spring KVS58-BT.
Please check intake intermediate rockers for clearance to the new racing cam lobe, OEM pressed steel rockers have sharp edges which may foul on the bigger cam lobe.
Trim/deburr as necessary.

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Kelford Cams - BMW M Series S58 Camshafts