| SKU:
247-A
Kelford Performance Camshafts
Mazda 3 MPS BK BL/6 MPS GG/CX-7 (MZR 2.3L)
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Description
Description
Kelford has designed a range of mild performance camshafts to suit the Mazda MZR engines. The newly released 247 range suits the popular, award-winning 2.3L L3-VDT DISI turbo engine. For more radical builds, please contact us to discuss your requirements.
Camshaft Profiles - Click "Specifications" Tab for profile data:
247-A:
- 252/252 Degrees advertised duration, 9.50mm/9.50mm lift.
- E-Z power, drop in cams. Can be used with stock springs. Suits mild turbo upgrade.
247-B:
- 260/268 Degrees advertised duration, 10.25mm/10.50mm lift.
- Ultimate stage 2 cams to suit engine builds in the 350-500HP range.
247-C:
- 266/276 Degrees advertised duration, 10.55mm/10.55mm lift.
- Stage 3 turbo cams, 500-750HP range, great with E85.
247-C2:
- 272/278 Degrees advertised duration, 11.00mm/11.00mm lift.
- Turbo Race Cams, to suit high power builds, 650-900HP. Great with E85
247-D:
- 282/292 Degrees advertised duration, 11.25mm/11.25mm lift.
- Stage 4 Drag Cams, best suited for professionally built engines. 750-1000HP.
Technical Specifications
Technical Specifications
247-A
| Engine Make: | Engine Model: | Part Number: | |||||
| MAZDA | 2.3 DISI | 247-A | |||||
| Valve Clearance: | Intake: | 0.30mm | Set | COLD | at the | CAM | |
| Exhaust: | 0.35mm | Set | COLD | at the | CAM | ||
| Cam Lift: | Intake: | 9.80mm | Exhaust: | 9.85mm | |||
| Rocker Ratio: | Intake: | 1 | Exhaust: | 1 | |||
| Nett Valve Lift: | Intake: | 9.50mm | Exhaust: | 9.50mm | |||
| Advertised Duration @ | 0.10mm | Intake: | 252 | Exhaust: | 252 | ||
| Duration @ | 1.00mm VALVE LIFT | Intake: | 212 | Exhaust: | 212 | ||
| Timing @ | 1.00mm VALVE LIFT | IVO: | 18 ATDC | EVO: | 36 BBDC | ||
| IVC: | 50 ABDC | EVC: | 4 BTDC | ||||
| Suggested Centre Lines: | Intake: | 124 | Exhaust: | 110 | |||
| VALVE | Lift @ TDC | Intake: | 0.06mm | Exhaust: | 0.62 | ||
247-B
| Engine Make: | Engine Model: | Part Number: | |||||
| MAZDA | 2.3 DISI | 247-B | |||||
| Valve Clearance: | Intake: | 0.30mm | Set | COLD | at the | CAM | |
| Exhaust: | 0.35mm | Set | COLD | at the | CAM | ||
| Cam Lift: | Intake: | 10.55mm | Exhaust: | 10.85mm | |||
| Rocker Ratio: | Intake: | 1 | Exhaust: | 1 | |||
| Nett Valve Lift: | Intake: | 10.25mm | Exhaust: | 10.50mm | |||
| Advertised Duration @ | 0.10mm | Intake: | 260 | Exhaust: | 268 | ||
| Duration @ | 1.00mm VALVE LIFT | Intake: | 220 | Exhaust: | 228 | ||
| Timing @ | 1.00mm VALVE LIFT | IVO: | 18 ATDC | EVO: | 48 BBDC | ||
| IVC: | 58 ABDC | EVC: | 0 TDC | ||||
| Suggested Centre Lines: | Intake: | 128 | Exhaust: | 114 | |||
| VALVE | Lift @ TDC | Intake: | 0.08mm | Exhaust: | 0.99 | ||
247-C
| Engine Make: | Engine Model: | Part Number: | |||||
| MAZDA | 2.3 DISI | 247-C | |||||
| Valve Clearance: | Intake: | 0.30mm | Set | COLD | at the | CAM | |
| Exhaust: | 0.35mm | Set | COLD | at the | CAM | ||
| Cam Lift: | Intake: | 10.85mm | Exhaust: | 10.90mm | |||
| Rocker Ratio: | Intake: | 1 | Exhaust: | 1 | |||
| Nett Valve Lift: | Intake: | 10.55mm | Exhaust: | 10.55mm | |||
| Advertised Duration @ | 0.10mm | Intake: | 266 | Exhaust: | 276 | ||
| Duration @ | 1.00mm VALVE LIFT | Intake: | 228 | Exhaust: | 236 | ||
| Timing @ | 1.00mm VALVE LIFT | IVO: | 16 ATDC | EVO: | 52 BBDC | ||
| IVC: | 64 ABDC | EVC: | 4 ATDC | ||||
| Suggested Centre Lines: | Intake: | 130 | Exhaust: | 114 | |||
| VALVE | Lift @ TDC | Intake: | 0.16mm | Exhaust: | 1.37 | ||
247-C2
247-D
| Engine Make: | Engine Model: | Part Number: | |||||
| MAZDA | 2.3 DISI | 247-D | |||||
| Valve Clearance: | Intake: | 0.30mm | Set | COLD | at the | CAM | |
| Exhaust: | 0.35mm | Set | COLD | at the | CAM | ||
| Cam Lift: | Intake: | 11.55mm | Exhaust: | 11.60mm | |||
| Rocker Ratio: | Intake: | 1 | Exhaust: | 1 | |||
| Nett Valve Lift: | Intake: | 11.25mm | Exhaust: | 11.25mm | |||
| Advertised Duration @ | 0.10mm | Intake: | 282 | Exhaust: | 292 | ||
| Duration @ | 1.00mm VALVE LIFT | Intake: | 242 | Exhaust: | 248 | ||
| Timing @ | 1.00mm VALVE LIFT | IVO: | 9 BTDC | EVO: | 62 BBDC | ||
| IVC: | 53 ABDC | EVC: | 6 ATDC | ||||
| Suggested Centre Lines: | Intake: | 112 | Exhaust: | 118 | |||
| VALVE | Lift @ TDC | Intake: | 1.96mm | Exhaust: | 1.56 | ||