Kelford Performance Camshafts - Mazda MX-5 NA/Familia (B6/B6T)

Kelford Cams SKU: KELFORD-203
Kelford Performance Camshafts - Mazda MX-5 NA/Familia (B6/B6T) - Sydney Performance Parts & Tyres - Prestons Sydney Australia

Kelford Performance Camshafts - Mazda MX-5 NA/Familia (B6/B6T)

Kelford Cams SKU: KELFORD-203
Regular price $935.00
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This Kelford Cams range of camshafts for Mazda B6 and B6T are our most popular profiles to suit these engines as they were originally manufactured, with hydraulic lifters. We can also manufacture camshafts to suit solid lifters on request; simply contact us to discuss.

If our catalogue offerings don't fit your needs, we can also make any other specification you desire or design one to suit your specific application.

 

Camshaft Profiles - Click "Specifications" Tab for profile data:

203-A:

  • 256/250 Degrees advertised duration, 8.60mm/8.60mm lift.
  • Hot street cams to suit stock engine with stock ECU.

203-B:

  • 264/256 Degrees advertised duration, 9.00mm/9.00mm lift.
  • Stage 2 performance cams to suit mild engine builds.

T203-A:

  • 250/256 Degrees advertised duration, 8.70mm/8.50mm lift.
  • Fast street cams to suit stock turbo and stock ECU.

T203-B:

  • 264/264 Degrees advertised duration, 8.95mm/8.95mm lift.
  • High performance cams to suit hot street or rally applications. Requires KVS12 valve springs.

203-A

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

 

 

 203-B

Engine Make: Engine Model: Part Number:
MAZDA Miata 323 B6 NA 203-B
Valve Clearance: Intake:   Set   at the  
  Exhaust:   Set   at the  
 
Cam Lift:   Intake: 9.00mm Exhaust: 9.00mm
Rocker Ratio:   Intake: 1 Exhaust: 1
Nett Valve Lift:   Intake: 9.00mm Exhaust: 9.00mm
Advertised Duration @ 0.10mm Intake: 264 Exhaust: 256
Duration @ 1.00mm VALVE LIFT Intake: 222 Exhaust: 216
Timing @ 1.00mm VALVE LIFT IVO: 3 BTDC EVO: 38 BBDC
    IVC: 39 ABDC EVC: 2 BTDC
Suggested Centre Lines:   Intake: 108 Exhaust: 110
VALVE Lift @ TDC Intake: 1.32mm Exhaust: 0.80

 

 

 T203-A

Engine Make: Engine Model: Part Number:
MAZDA Miata 323 B6 Turbo T203-A
Valve Clearance: Intake:   Set   at the  
  Exhaust:   Set   at the  
 
Cam Lift:   Intake: 8.70mm Exhaust: 8.50mm
Rocker Ratio:   Intake: 1 Exhaust: 1
Nett Valve Lift:   Intake: 8.70mm Exhaust: 8.50mm
Advertised Duration @ 0.10mm Intake: 250 Exhaust: 256
Duration @ 1.00mm VALVE LIFT Intake: 210 Exhaust: 216
Timing @ 1.00mm VALVE LIFT IVO: 5 ATDC EVO: 40 BBDC
    IVC: 35 ABDC EVC: 4 BTDC
Suggested Centre Lines:   Intake: 110 Exhaust: 112
VALVE Lift @ TDC Intake: 0.80mm Exhaust: 0.56

 

 

 T203-B

Engine Make: Engine Model: Part Number:
MAZDA Miata 323 B6 Turbo T203-B
Valve Clearance: Intake:   Set   at the  
  Exhaust:   Set   at the  
 
Cam Lift:   Intake: 8.95mm Exhaust: 8.95mm
Rocker Ratio:   Intake: 1 Exhaust: 1
Nett Valve Lift:   Intake: 8.95mm Exhaust: 8.95mm
Advertised Duration @ 0.10mm Intake: 264 Exhaust: 264
Duration @ 1.00mm VALVE LIFT Intake: 222 Exhaust: 222
Timing @ 1.00mm VALVE LIFT IVO: 1 BTDC EVO: 43 BBDC
    IVC: 41 ABDC EVC: 1 BTDC
Suggested Centre Lines:   Intake: 110 Exhaust: 112
VALVE Lift @ TDC Intake: 1.10mm Exhaust: 0.96
Vehicle Fitment is provided as a guide only to narrow down results. Please check listing for any additional information (measurements, specifications, additional notes) which may affect compatibility or ask for assistance.
  • 1989 Mazda MX-5 NA
  • 1990 Mazda MX-5 NA
  • 1991 Mazda MX-5 NA
  • 1992 Mazda MX-5 NA
  • 1993 Mazda MX-5 NA

 

  • We offer Local Delivery and Pickup
  • Secure payments
  • In stock, ready to ship
  • Inventory on the way
Tax included. Shipping calculated at checkout.

This Kelford Cams range of camshafts for Mazda B6 and B6T are our most popular profiles to suit these engines as they were originally manufactured, with hydraulic lifters. We can also manufacture camshafts to suit solid lifters on request; simply contact us to discuss.

If our catalogue offerings don't fit your needs, we can also make any other specification you desire or design one to suit your specific application.

 

Camshaft Profiles - Click "Specifications" Tab for profile data:

203-A:

  • 256/250 Degrees advertised duration, 8.60mm/8.60mm lift.
  • Hot street cams to suit stock engine with stock ECU.

203-B:

  • 264/256 Degrees advertised duration, 9.00mm/9.00mm lift.
  • Stage 2 performance cams to suit mild engine builds.

T203-A:

  • 250/256 Degrees advertised duration, 8.70mm/8.50mm lift.
  • Fast street cams to suit stock turbo and stock ECU.

T203-B:

  • 264/264 Degrees advertised duration, 8.95mm/8.95mm lift.
  • High performance cams to suit hot street or rally applications. Requires KVS12 valve springs.

203-A

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

 

 

 203-B

Engine Make: Engine Model: Part Number:
MAZDA Miata 323 B6 NA 203-B
Valve Clearance: Intake:   Set   at the  
  Exhaust:   Set   at the  
 
Cam Lift:   Intake: 9.00mm Exhaust: 9.00mm
Rocker Ratio:   Intake: 1 Exhaust: 1
Nett Valve Lift:   Intake: 9.00mm Exhaust: 9.00mm
Advertised Duration @ 0.10mm Intake: 264 Exhaust: 256
Duration @ 1.00mm VALVE LIFT Intake: 222 Exhaust: 216
Timing @ 1.00mm VALVE LIFT IVO: 3 BTDC EVO: 38 BBDC
    IVC: 39 ABDC EVC: 2 BTDC
Suggested Centre Lines:   Intake: 108 Exhaust: 110
VALVE Lift @ TDC Intake: 1.32mm Exhaust: 0.80

 

 

 T203-A

Engine Make: Engine Model: Part Number:
MAZDA Miata 323 B6 Turbo T203-A
Valve Clearance: Intake:   Set   at the  
  Exhaust:   Set   at the  
 
Cam Lift:   Intake: 8.70mm Exhaust: 8.50mm
Rocker Ratio:   Intake: 1 Exhaust: 1
Nett Valve Lift:   Intake: 8.70mm Exhaust: 8.50mm
Advertised Duration @ 0.10mm Intake: 250 Exhaust: 256
Duration @ 1.00mm VALVE LIFT Intake: 210 Exhaust: 216
Timing @ 1.00mm VALVE LIFT IVO: 5 ATDC EVO: 40 BBDC
    IVC: 35 ABDC EVC: 4 BTDC
Suggested Centre Lines:   Intake: 110 Exhaust: 112
VALVE Lift @ TDC Intake: 0.80mm Exhaust: 0.56

 

 

 T203-B

Engine Make: Engine Model: Part Number:
MAZDA Miata 323 B6 Turbo T203-B
Valve Clearance: Intake:   Set   at the  
  Exhaust:   Set   at the  
 
Cam Lift:   Intake: 8.95mm Exhaust: 8.95mm
Rocker Ratio:   Intake: 1 Exhaust: 1
Nett Valve Lift:   Intake: 8.95mm Exhaust: 8.95mm
Advertised Duration @ 0.10mm Intake: 264 Exhaust: 264
Duration @ 1.00mm VALVE LIFT Intake: 222 Exhaust: 222
Timing @ 1.00mm VALVE LIFT IVO: 1 BTDC EVO: 43 BBDC
    IVC: 41 ABDC EVC: 1 BTDC
Suggested Centre Lines:   Intake: 110 Exhaust: 112
VALVE Lift @ TDC Intake: 1.10mm Exhaust: 0.96
Vehicle Fitment is provided as a guide only to narrow down results. Please check listing for any additional information (measurements, specifications, additional notes) which may affect compatibility or ask for assistance.
  • 1989 Mazda MX-5 NA
  • 1990 Mazda MX-5 NA
  • 1991 Mazda MX-5 NA
  • 1992 Mazda MX-5 NA
  • 1993 Mazda MX-5 NA

 

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