Kelford camshafts, Nissan SR16VE / SR20VE, roller rockers (1997-2003)

Kelford camshafts, Nissan SR16VE / SR20VE, roller rockers

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 SR16VE / SR20VE, roller rockers engine. Profile differences, spring recommendations and required modifications are detailed below.

Technical specifications – available profiles for this engine

Profile R184-EK

Naturally aspirated circuit or drag profile for a built engine running race fuel. Suits strokers, individual throttle bodies and a lightweight car with close-ratio gearing. Not for street use. Works beyond 10000 rpm. Requires the separately sold MT Performance roller rocker conversion, reference 184-RR. Recommended springs: KVS10-BT-R.

Manufacturer profile information

Profile R184-LTK

For a turbocharged race engine making around 700–1000 hp with a 64–68 mm turbo. Works to approximately 9000 rpm and suits E85. Requires the separately sold MT Performance roller rocker kit, reference 184-RR. Recommended springs: KVS10-BT-R.

Manufacturer profile information

Profile R184-STK

Roller rocker race profile for turbocharged SR16VE/SR20VE engines making around 1100–1600 hp. Suits a 68–78 mm turbo, approximately 9000 rpm and fuels such as E85. Recommended springs: KVS10-BT-R. Requires the separately sold MT Performance roller rocker conversion, manufacturer reference 184-RR.

Manufacturer profile information

Profile R184-TK

Drag profile for a turbocharged engine making over 2000 hp with a Pro Mod turbo of at least 88 mm. For alcohol fuel, working beyond 10000 rpm. Requires the separately sold MT Performance roller rocker kit, reference 184-RR. Recommended springs: KVS10-BT-R.

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 Pulsar N15 VZ-R / VZ-R N1, SR16VE (1997–2000)
• Nissan Lucino N15 VZ-R, SR16VE (1997–1999)
• Nissan Primera P11/P12, SR20VE (1997–2003)
• Nissan Bluebird U14 SSS-Z, SR20VE (1997–2001)
• Nissan Wingroad Y10 / Y11 ZV-S, SR20VE (1997–2000)

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.

Kelford Cams