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Kelford camshafts, Mitsubishi 4G63 Evo 9 MIVEC, hydraulic lifters (2005-2007)
803,00 €
Kelford camshafts for the Mitsubishi 4G63 Evo 9 MIVEC, hydraulic lifters engine. Choose a profile to suit your engine parts and intended use. Profile specifications and required modifications are detailed below.
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Kelford is a New Zealand camshaft manufacturer with roots in Christchurch dating back to 1968. Its profiles range from upgrades for street-driven cars to fully built race engines. Choose the cam around the rest of the engine and its intended use, rather than simply picking the longest duration.
This selection is for the Mitsubishi 4G63 Evo 9 MIVEC, hydraulic lifters engine. Profile differences, spring recommendations and required modifications are detailed below.
Technical specifications – available profiles for this engine
Profile 9-TX258
Street profile for a tuned 4G63 with the original turbo or a turbo upgrade. Also suitable for restricted rally engines. Adds low and mid-range pull, with MIVEC retaining throttle response and a wide power band. KVS63-BTK springs are recommended up to 8000 rpm and 25 psi boost.
| Specification | Intake | Exhaust |
|---|---|---|
| Cam lift | 6.07mm | 6.07mm |
| Rocker ratio | 1.73 | 1.73 |
| Net valve lift | 10.50mm | 10.50mm |
| Advertised duration @ 0.10mm | 258° | 264° |
| Duration @ 1.00mm valve lift | 208° | 220° |
| Timing IVO @ 1.00mm valve lift | 26 ATDC | – |
| Timing IVC @ 1.00mm valve lift | 54 ABDC | – |
| Timing EVO @ 1.00mm valve lift | – | 41 BBDC |
| Timing EVC @ 1.00mm valve lift | – | 1 BTDC |
| Suggested centre lines | 130° | 111° |
| Valve lift at TDC | 0.05mm | 0.96 mm |
Manufacturer profile information
Profile 9-TX268
For street, circuit or drag engines making around 350–600 hp with a 48–58 mm turbo. Suits E85 and similar ethanol blends. Adds mid-range pull, with MIVEC retaining throttle response and a wide power band. KVS63-BTK springs are recommended up to 8000 rpm and 35 psi boost.
| Specification | Intake | Exhaust |
|---|---|---|
| Cam lift | 6.36mm | 6.07mm |
| Rocker ratio | 1.73 | 1.73 |
| Net valve lift | 11.00mm | 10.50mm |
| Advertised duration @ 0.10mm | 264° | 268° |
| Duration @ 1.00mm valve lift | 216° | 220° |
| Timing IVO @ 1.00mm valve lift | 22 ATDC | – |
| Timing IVC @ 1.00mm valve lift | 58 ABDC | – |
| Timing EVO @ 1.00mm valve lift | – | 43 BBDC |
| Timing EVC @ 1.00mm valve lift | – | 3 BTDC |
| Suggested centre lines | 130° | 113° |
| Valve lift at TDC | 0.12mm | 0.84 mm |
Manufacturer profile information
Profile 9-TX272
Versatile race profile for a 4G63 MIVEC making around 400–650 hp with a 54–62 mm turbo. Retains MIVEC for throttle response and a wide power band. KVS63-BTK springs are recommended up to 8500 rpm and 35 psi boost.
| Specification | Intake | Exhaust |
|---|---|---|
| Cam lift | 6.36mm | 6.36mm |
| Rocker ratio | 1.73 | 1.73 |
| Net valve lift | 11.00mm | 11.00mm |
| Advertised duration @ 0.10mm | 272° | 272° |
| Duration @ 1.00mm valve lift | 226° | 226° |
| Timing IVO @ 1.00mm valve lift | 17 ATDC | – |
| Timing IVC @ 1.00mm valve lift | 63 ABDC | – |
| Timing EVO @ 1.00mm valve lift | – | 46 BBDC |
| Timing EVC @ 1.00mm valve lift | – | 0 TDC |
| Suggested centre lines | 130° | 113° |
| Valve lift at TDC | 0.23mm | 1.00 mm |
Manufacturer profile information
Profile 9-TX272-L
Profile for stock valve springs, giving a lumpy idle with an exhaust upgrade. Recommended turbo size is 48–58 mm. Adds mid-range and top-end pull, with MIVEC retaining throttle response and a wide power band. KVS63-BTK springs are recommended for higher-mileage engines.
| Specification | Intake | Exhaust |
|---|---|---|
| Cam lift | 5.78mm | 5.78mm |
| Rocker ratio | 1.73 | 1.73 |
| Net valve lift | 10.00mm | 10.00mm |
| Advertised duration @ 0.10mm | 272° | 272° |
| Duration @ 1.00mm valve lift | 226° | 226° |
| Timing IVO @ 1.00mm valve lift | 17 ATDC | – |
| Timing IVC @ 1.00mm valve lift | 63 ABDC | – |
| Timing EVO @ 1.00mm valve lift | – | 48 BBDC |
| Timing EVC @ 1.00mm valve lift | – | 2 BTDC |
| Suggested centre lines | 130° | 115° |
| Valve lift at TDC | 0.14mm | 1.12 mm |
Manufacturer profile information
Profile 9-TX272R
Higher-lift profile for engines making around 450–700 hp, with a 54–68 mm turbo and high rpm. Suits E85 and similar ethanol blends. MIVEC retains throttle response and a wide power band. KVS63-BTK springs are recommended up to 9500 rpm and 40 psi boost.
| Specification | Intake | Exhaust |
|---|---|---|
| Cam lift | 6.79mm | 6.79mm |
| Rocker ratio | 1.73 | 1.73 |
| Net valve lift | 11.75mm | 11.75mm |
| Advertised duration @ 0.10mm | 272° | 272° |
| Duration @ 1.00mm valve lift | 232° | 232° |
| Timing IVO @ 1.00mm valve lift | 14 ATDC | – |
| Timing IVC @ 1.00mm valve lift | 66 ABDC | – |
| Timing EVO @ 1.00mm valve lift | – | 49 BBDC |
| Timing EVC @ 1.00mm valve lift | – | 3 ATDC |
| Suggested centre lines | 130° | 113° |
| Valve lift at TDC | 0.25mm | 1.07 mm |
Manufacturer profile information
Profile 9-TX280R
For a built 4G63 in time attack or drag use with a turbo of at least 64 mm. Suits E85 and similar ethanol blends. MIVEC retains throttle response and a wide power band. KVS63-BTK springs are recommended up to 9000 rpm and 40 psi boost.
| Specification | Intake | Exhaust |
|---|---|---|
| Cam lift | 6.65mm | 6.65mm |
| Rocker ratio | 1.73 | 1.73 |
| Net valve lift | 11.50mm | 11.50mm |
| Advertised duration @ 0.10mm | 280° | 288° |
| Duration @ 1.00mm valve lift | 238° | 242° |
| Timing IVO @ 1.00mm valve lift | 11 ATDC | – |
| Timing IVC @ 1.00mm valve lift | 69 ABDC | – |
| Timing EVO @ 1.00mm valve lift | – | 57 BBDC |
| Timing EVC @ 1.00mm valve lift | – | 5 ATDC |
| Suggested centre lines | 130° | 116° |
| Valve lift at TDC | 0.37mm | 1.29 mm |
Manufacturer profile information
Checking heights are shown with the duration figures. Net lift is the net valve movement specified by the manufacturer, while cam lift is listed separately. IVO/IVC denote intake valve opening/closing and EVO/EVC exhaust valve opening/closing. BTDC/ATDC mean before/after top dead centre, and BBDC/ABDC before/after bottom dead centre.
Installation and profile selection
Confirm the exact engine version, valvetrain design and the modifications required by the profile. Check cam timing and valve-to-piston clearance during installation. Springs, lifters and other supporting parts mentioned with a profile are not included unless the profile explicitly states that they come with the kit.
Examples of related vehicle applications
- Mitsubishi Lancer Evolution 9 MIVEC, 4G63 (2005–2007)
The list covers versions with the specified engines only. Exact fitment and required modifications depend on the selected profile, cylinder head, lifters and timing system.
| Weight | 10 kg |
|---|---|
| Brand |
