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Kelford camshafts, Nissan SR20DET S14/S15 NVCS (1993-2002)
711,00 €
Kelford camshafts for the Nissan SR20DET S14/S15 NVCS 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 Nissan SR20DET S14/S15 NVCS engine. Profile differences, spring recommendations and required modifications are detailed below.
Technical specifications – available profiles for this engine
Profile V-188-A
Street profile for a 54–60 mm turbo. Adds low and mid-range pull while retaining throttle response and NVCS. Requires upgraded springs, with KVS93 or KVS93-BT recommended.
| Specification | Intake | Exhaust |
|---|---|---|
| Cam lift | 7.61mm | 7.10mm |
| Rocker ratio | 1.55 | 1.55 |
| Net valve lift | 11.80mm | 11.00mm |
| Advertised duration @ 0.10mm | 260° | 266° |
| Duration @ 1.00mm valve lift | 218° | 222° |
| Timing IVO @ 1.00mm valve lift | 21 ATDC | – |
| Timing IVC @ 1.00mm valve lift | 59 ABDC | – |
| Timing EVO @ 1.00mm valve lift | – | 43 BBDC |
| Timing EVC @ 1.00mm valve lift | – | 1 BTDC |
| Suggested centre lines | 130° | 112° |
| Valve lift at TDC | 0.06mm | 0.92 mm |
Manufacturer profile information
Profile V-188-A2
Stock-spring profile for a 48–60 mm turbo. More top-end pull than the EZ profile, retaining NVCS.
| Specification | Intake | Exhaust |
|---|---|---|
| Cam lift | 7.10mm | 7.10mm |
| Rocker ratio | 1.55 | 1.55 |
| Net valve lift | 11.00mm | 11.00mm |
| Advertised duration @ 0.10mm | 266° | 270° |
| Duration @ 1.00mm valve lift | 224° | 228° |
| Timing IVO @ 1.00mm valve lift | 20 ATDC | – |
| Timing IVC @ 1.00mm valve lift | 64 ABDC | – |
| Timing EVO @ 1.00mm valve lift | – | 48 BBDC |
| Timing EVC @ 1.00mm valve lift | – | 0 TDC |
| Suggested centre lines | 132° | 114° |
| Valve lift at TDC | 0.02mm | 0.96 mm |
Manufacturer profile information
Profile V-188-B
Drift profile combining a large lobe area with moderate duration for quick spool and more top-end pull. Recommended turbo size: 58–66 mm. Retains NVCS. Requires upgraded springs, with KVS93 or KVS93-BT recommended above 29 psi boost.
| Specification | Intake | Exhaust |
|---|---|---|
| Cam lift | 7.74mm | 7.42mm |
| Rocker ratio | 1.55 | 1.55 |
| Net valve lift | 12.00mm | 11.50mm |
| Advertised duration @ 0.10mm | 268° | 272° |
| Duration @ 1.00mm valve lift | 226° | 230° |
| Timing IVO @ 1.00mm valve lift | 19 ATDC | – |
| Timing IVC @ 1.00mm valve lift | 65 ABDC | – |
| Timing EVO @ 1.00mm valve lift | – | 50 BBDC |
| Timing EVC @ 1.00mm valve lift | – | 0 TDC |
| Suggested centre lines | 132° | 115° |
| Valve lift at TDC | 0.05mm | 1.06 mm |
Manufacturer profile information
Profile V-188-C
Top-end-focused race profile for a 64–72 mm turbo. Retains NVCS and requires upgraded springs, with KVS93-BT recommended.
| Specification | Intake | Exhaust |
|---|---|---|
| Cam lift | 8.06mm | 7.74mm |
| Rocker ratio | 1.55 | 1.55 |
| Net valve lift | 12.50mm | 12.00mm |
| Advertised duration @ 0.10mm | 280° | 280° |
| Duration @ 1.00mm valve lift | 236° | 236° |
| Timing IVO @ 1.00mm valve lift | 16 ATDC | – |
| Timing IVC @ 1.00mm valve lift | 72 ABDC | – |
| Timing EVO @ 1.00mm valve lift | – | 53 BBDC |
| Timing EVC @ 1.00mm valve lift | – | 3 ATDC |
| Suggested centre lines | 134° | 115° |
| Valve lift at TDC | 0.14mm | 1.28 mm |
Manufacturer profile information
Profile V-188-EZ
Stock-spring profile for a 46–54 mm turbo. Adds low and mid-range pull and retains NVCS. With stock springs, retain the original rev limit and no more than 22 psi boost. KVS93 or KVS93-BT springs are recommended for higher-mileage engines or higher boost.
| Specification | Intake | Exhaust |
|---|---|---|
| Cam lift | 7.29mm | 7.29mm |
| Rocker ratio | 1.55 | 1.55 |
| Net valve lift | 11.30mm | 11.30mm |
| Advertised duration @ 0.10mm | 254° | 254° |
| Duration @ 1.00mm valve lift | 220° | 220° |
| Timing IVO @ 1.00mm valve lift | 20 ATDC | – |
| Timing IVC @ 1.00mm valve lift | 60 ABDC | – |
| Timing EVO @ 1.00mm valve lift | – | 42 BBDC |
| Timing EVC @ 1.00mm valve lift | – | 2 BTDC |
| Suggested centre lines | 130° | 112° |
| Valve lift at TDC | – | 0.84 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
- Nissan Silvia / 200SX S14 SR20DET (1993–1999)
- Nissan Silvia S15 SR20DET (1999–2002)
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 |
