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      High Performance 288/280 Degree, 12.00/11.50mm high lift drag racing cams for EVO 8 4G63.

      The Kelford Cams range of camshafts for Mitsubishi 4G63 DOHC engines are renowned worldwide for their superior results. This range is for the DOHC 4G63T Evolution 8 engine. All of the camshafts in this range are ground on our Toyoda CNC masterless cam grinder to consistently deliver the highest quality product.

      Our 'TX' range of camshafts for Mitsubishi 4G63 DOHC engines have the best available lobe designs, featuring low seat timing and maximum valve area while retaining perfect valve control at high RPM. Every cam in the range features the same lobe design as our mega popular 272 degree camshaft.

      We have developed a proven range of camshafts for this engine to suit most applications, including a low lift 272 degree cam to suit stock valve springs and high lift designs for the more serious applications.

      However, if you can't find your perfect camshaft within our range, designing custom profiles is our specialty! Simply order the custom camshaft and provide us all the details of your build. Confidential development for race teams is also available.

      Camshaft Profiles

      8-TX288 Camshaft Set:

      • 288/280 Degree advertised duration, 12.00/11.50mm lift drag racing cams.
      • These camshafts suit high HP, professionally built drag racing engines up to 50lb boost and 9500 RPM with our recommended valve springs.

      Technical Specifications

      Valve Clearance:

      Intake: Set at the
      Exhaust: Set at the

      Cam Lift: Intake: 6.94mm Exhaust: 6.65mm
      Rocker Ratio: Intake: 1.73 Exhaust: 1.73
      Nett Valve Lift: Intake: 12.00mm Exhaust: 11.50mm
      Advertised Duration @ 0.10mm Intake: 288 Exhaust: 280
      Duration @ 1.00mm VALVE LIFT Intake: 242 Exhaust: 238
      Timing @ 1.00mm VALVE LIFT IVO: 16 BTDC EVO: 56 BBDC
      IVC: 46 ABDC EVC: 2 ATDC
      Suggested Centre Lines: Intake: 105 Exhaust: 117
      VALVE Lift @ TDC Intake: 2.40mm Exhaust: 1.32mm