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Kelford camshafts, Mitsubishi 4B11T (2007-2016)
947,00 €
Kelford camshafts for the Mitsubishi 4B11T 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 4B11T engine. Profile differences, spring recommendations and required modifications are detailed below.
Technical specifications – available profiles for this engine
Profile 214-A
Adds low- and mid-range pull with responsive throttle behaviour. Recommended turbo size: 54–60 mm. Standard springs can be retained at factory boost and rev limits. KVS11 springs are recommended for up to 32 psi and 9,000 rpm.
| Specification | Intake | Exhaust |
|---|---|---|
| Valve clearance | 0.30mm cold at the cam | 0.35mm cold at the cam |
| Cam lift | 10.30mm | 9.65mm |
| Rocker ratio | 1 | 1 |
| Net valve lift | 10.00mm | 9.30mm |
| Advertised duration @ 0.10mm | 264° | 252° |
| Duration @ 1.00mm valve lift | 226° | 212° |
| Suggested centre lines | Variable / VVT | Variable / VVT |
Manufacturer profile information
Profile 214-B
A versatile racing profile for approximately 350–550 hp with a 58–66 mm turbo. Requires upgraded springs. KVS11 is recommended for up to 32 psi and 9,000 rpm.
| Specification | Intake | Exhaust |
|---|---|---|
| Valve clearance | 0.30mm cold at the cam | 0.35mm cold at the cam |
| Cam lift | 11.30mm | 10.35mm |
| Rocker ratio | 1 | 1 |
| Net valve lift | 11.00mm | 10.00mm |
| Advertised duration @ 0.10mm | 270° | 262° |
| Duration @ 1.00mm valve lift | 228° | 220° |
| Suggested centre lines | Variable / VVT | Variable / VVT |
Manufacturer profile information
Profile 214-C
Stage 3 for a 4B11T with a 64–72 mm turbo. Suitable for E85. Kelford recommends upgraded KVS11-BT springs.
| Specification | Intake | Exhaust |
|---|---|---|
| Valve clearance | 0.30mm cold at the cam | 0.35mm cold at the cam |
| Cam lift | 11.80mm | 11.35mm |
| Rocker ratio | 1 | 1 |
| Net valve lift | 11.50mm | 11.00mm |
| Advertised duration @ 0.10mm | 278° | 272° |
| Duration @ 1.00mm valve lift | 236° | 230° |
| Suggested centre lines | Variable / VVT | Variable / VVT |
Manufacturer profile information
Profile 214-D
For a 4B11T drag engine making over 1,000 hp with a 68 mm or larger turbo at high boost. Intended for E85 or methanol. KVS11-BT springs are required.
| Specification | Intake | Exhaust |
|---|---|---|
| Valve clearance | 0.30mm cold at the cam | 0.35mm cold at the cam |
| Cam lift | 11.80mm | 11.35mm |
| Rocker ratio | 1 | 1 |
| Net valve lift | 11.50mm | 11.00mm |
| Advertised duration @ 0.10mm | 282° | 288° |
| Duration @ 1.00mm valve lift | 242° | 248° |
| Timing IVO @ 1.00mm valve lift | 9 BTDC | – |
| Timing IVC @ 1.00mm valve lift | 53 ABDC | – |
| Timing EVO @ 1.00mm valve lift | – | 64 BBDC |
| Timing EVC @ 1.00mm valve lift | – | 4 ATDC |
| Suggested centre lines | 112° | 120° |
| Valve lift at TDC | 2.00mm | 1.40 mm |
Manufacturer profile information
Profile 214-R
For rallying or street and circuit applications where throttle response matters. Recommended turbo size: 46–54 mm. The split intake-lobe design uses different specifications for the intake valves to promote swirl and cylinder filling. Requires upgraded springs. KVS11 is recommended for up to 32 psi and 9,000 rpm.
| Specification | Intake | Exhaust |
|---|---|---|
| Valve clearance | 0.25mm cold at the cam | 0.35mm cold at the cam |
| Cam lift | 10.25mm | 10.35mm |
| Rocker ratio | 1 | 1 |
| Net valve lift | 10.00mm | 10.00mm |
| Advertised duration @ 0.10mm | 260° | 262° |
| Duration @ 1.00mm valve lift | 214° | 220° |
| Suggested centre lines | Variable / VVT | Variable / VVT |
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 X CZ4A, 4B11T (2007–2016)
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 |
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