Description

The vision is for Kelford Cams to be known as one of the best in the camshaft industry, to be recognised worldwide for manufacturing high quality, high performance camshafts for the motorsport industry. We are a small company that, since 1968 has specialised in custom camshafts to suit the individual requirements of each racer. We have a vast knowledge of engine combinations for all types of motor sport and we know how to match camshafts to engine and vehicle requirements. All of our cams are manufactured in-house using ultra-modern design systems and ground using masterless CNC grinders with CBN cutting wheel technology for superior quality and consistency.

  • 256/250 Degrees advertised duration, 8.60mm/8.60mm lift
  • Hill climb, rally and Targa cam to suit well built competition engines with 10:1+ compression, side drafts or IR fuel injection.

Specifications

Engine Make: Engine Model: Part Number:
MAZDA Miata 323 B6 NA 203-A
Valve Clearance: Intake: Set at the
  Exhaust: Set at the
 
Cam Lift:   Intake: 8.60mm Exhaust: 8.60mm
Rocker Ratio:   Intake: 1 Exhaust: 1
Nett Valve Lift:   Intake: 8.60mm Exhaust: 8.60mm
Advertised Duration @ 0.10mm Intake: 256 Exhaust: 250
Duration @ 1.00mm VALVE LIFT Intake: 216 Exhaust: 210
Timing @ 1.00mm VALVE LIFT IVO: 2 ATDC EVO: 35 BBDC
    IVC: 38 ABDC EVC: 5 BTDC
Suggested Centre Lines:   Intake: 110 Exhaust: 110
VALVE Lift @ TDC Intake: 0.85mm Exhaust: 0.68



Compatibility

  • 1989-1997 Mazda MX-5 B6 NA

The vision is for Kelford Cams to be known as one of the best in the camshaft industry, to be recognised worldwide for manufacturing high quality, high performance camshafts for the motorsport industry. We are a small company that, since 1968 has specialised in custom camshafts to suit the individual requirements of each racer. We have a vast knowledge of engine combinations for all types of motor sport and we know how to match camshafts to engine and vehicle requirements. All of our cams are manufactured in-house using ultra-modern design systems and ground using masterless CNC grinders with CBN cutting wheel technology for superior quality and consistency.

  • 256/250 Degrees advertised duration, 8.60mm/8.60mm lift
  • Hill climb, rally and Targa cam to suit well built competition engines with 10:1+ compression, side drafts or IR fuel injection.
Engine Make: Engine Model: Part Number:
MAZDA Miata 323 B6 NA 203-A
Valve Clearance: Intake: Set at the
  Exhaust: Set at the
 
Cam Lift:   Intake: 8.60mm Exhaust: 8.60mm
Rocker Ratio:   Intake: 1 Exhaust: 1
Nett Valve Lift:   Intake: 8.60mm Exhaust: 8.60mm
Advertised Duration @ 0.10mm Intake: 256 Exhaust: 250
Duration @ 1.00mm VALVE LIFT Intake: 216 Exhaust: 210
Timing @ 1.00mm VALVE LIFT IVO: 2 ATDC EVO: 35 BBDC
    IVC: 38 ABDC EVC: 5 BTDC
Suggested Centre Lines:   Intake: 110 Exhaust: 110
VALVE Lift @ TDC Intake: 0.85mm Exhaust: 0.68



  • 1989-1997 Mazda MX-5 B6 NA

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