Kelford 292/280 | Stage 2 BMW M Series Camshafts

Stage 2 racing cams for professionally built BMW S58 engines that can deliver 800hp to 1400hp with 66-75mm turbo sizing and aftermarket intake plenums.

• The cams enable full use of Valvetronic and Dual VANOS while allowing you to lock Valvetronic when using an aftermarket throttle body. (Please check valve-to-piston clearances on full travel of VANOS and Valvetronic).
• Upgrade valve springs with Kelford Cams’ KVS58-BT.
• Ensure the clearance of the new racing cam lobe with the intake intermediate rockers and trim or deburr OEM pressed steel rockers if necessary.

  The 358-B has had many independent tests completed by various engine builders check out the latest cam swap dyno test.
  
  STRAIGHT CAM SWAP DYNO RESULT
  

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  STRAIGHT CAMSHAFT SWAP

  INCREASED HORSEPOWER

  Instant gain of 10% with no other hardware changes. Simple cam swap for Kelford 358-B Stage 2 Cams + installation of the KVS58-BT spring kit.

  Pure Turbos were able to increase 713HP to 781HP – this is a straight cam/spring swap with no alterations to the tune

  
  ask a quick question
  

  Thanks to Pure Turbos & Dorch Engineering we have testing results from our S58 358-B cams & KVS58-BT valve spring and retainer kit.

  
  WATCH S58 World Record Run
  

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  S58 WORLD RECORD

  8.49 @ 164.29 MPH

  Huge congratulations to RKAutowerks

  Pushing 1179awhp and 45 PSI with:RK Stage 3 Engine RK g42-1200 turbo kit RK Billet intake manifold RK Surge tank Frankenstein Engineering CNC Heads

  Builder	RKAutowerks
  Tuned By	@stimikey
  Driver	@boosted_jahaziel
  Kelford	358-B