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 |  SKU: HL182-A

Kelford Performance Camshafts

Nissan Skyline GTS/GTS-T R32/R33 (RB20/RB25 Non-Neo)
$1,376.10
Camshaft Profile
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Description

The Kelford Cams range of camshafts for Nissan RB20 and RB25 engines has come from many years of racing RB engines down here in New Zealand. The HL series are popular because there is no head clearancing required, but the more serious engine builder uses the higher lift, split lobe profiles.

This catalogue range is designed for hydraulic lifter engines (with the exception of the NEO), however solid or haydraulic lifter custom profiles are available.

When selecting a valve spring for your RB build, it is recommended that you contact us for advice.

We have developed a proven range of camshafts for both naturally aspirated and turbocharged versions of this engine to suit the most common applications. However, if you can't find your perfect camshaft within our catalogue, designing custom profiles is our specialty! Simply order the custom camshaft and provide us all the details of your build. Confidential development for race teams is also available.

RB camshafts are fitted with two different kinds of triggers; by default we fit the spline and hand half moon type, if you need the yoke shaped type please let us know when ordering.

 

Camshaft Profiles - Click "Specifications" Tab for profile data:

HL182-A:

  • 262/262 Degrees advertised duration, 9.30mm/9.30mm lift.
  • Drift spec, low duration, low overlap, maximum velocity, for ultimate throttle response. No cylinder head clearancing needed.

HL182-B:

  • 272/272 Degrees advertised duration, 9.35mm/9.35mm lift.
  • 272 Degree street / strip cams. No cylinder head clearancing needed.

HL182-C:

  • 280/280 Degrees advertised duration, 9.35mm/9.35mm lift.
  • RB20/25DE-T hydraulic 280 degree racing camshafts, no cylinder head clearancing needed.

H182-SC:

  • 272&264/272 Degrees advertised duration, 10.00mm&10.00mm/10.00mm lift.
  • Split lobe design, High lift Racing camshafts, low seat duration, maximum velocity to suit street, drift & track applications, requires machining for lobes to clear head casting.

H182-SD:

  • 278&272/278 Degrees advertised duration, 10.00mm&10.00mm/10.00mm lift.
  • 278&272/278 Degrees advertised duration, 10.00mm&10.00mm/10.00mm lift. Split lobe design, High lift street / strip racing camshafts, suit large turbo, built engine, requires machining for lobes to clear head casting. Primary lobe specification is / Degrees advertised duration, lift.

 

Technical Specifications

HL182-A

Engine Make: Engine Model: Part Number:
NISSAN RB20&25DE/T HL182-A
Valve Clearance: Intake:   Set   at the  
  Exhaust:   Set   at the  
 
Cam Lift:   Intake: 9.30mm Exhaust: 9.30mm
Rocker Ratio:   Intake: 1 Exhaust: 1
Nett Valve Lift:   Intake: 9.30mm Exhaust: 9.30mm
Advertised Duration @ 0.10mm Intake: 262 Exhaust: 262
Duration @ 1.00mm VALVE LIFT Intake: 222 Exhaust: 222
Timing @ 1.00mm VALVE LIFT IVO: 3 BTDC EVO: 45 BBDC
    IVC: 39 ABDC EVC: 3 BTDC
Suggested Centre Lines:   Intake: 108 Exhaust: 114
VALVE Lift @ TDC Intake: 1.37mm Exhaust: 0.85

 

 

 HL182-B

Engine Make: Engine Model: Part Number:
NISSAN RB20&25DE/T HL182-B
Valve Clearance: Intake:   Set   at the  
  Exhaust:   Set   at the  
 
Cam Lift:   Intake: 9.35mm Exhaust: 9.35mm
Rocker Ratio:   Intake: 1 Exhaust: 1
Nett Valve Lift:   Intake: 9.35mm Exhaust: 9.35mm
Advertised Duration @ 0.10mm Intake: 272 Exhaust: 272
Duration @ 1.00mm VALVE LIFT Intake: 226 Exhaust: 226
Timing @ 1.00mm VALVE LIFT IVO: 3 BTDC EVO: 47 BBDC
    IVC: 43 ABDC EVC: 1 BTDC
Suggested Centre Lines:   Intake: 110 Exhaust: 114
VALVE Lift @ TDC Intake: 1.19mm Exhaust: 0.85

 

 

 HL182-C

Engine Make: Engine Model: Part Number:
NISSAN RB20&25DE/T HL182-C
Valve Clearance: Intake:   Set   at the  
  Exhaust:   Set   at the  
 
Cam Lift:   Intake: 9.35mm Exhaust: 9.35mm
Rocker Ratio:   Intake: 1 Exhaust: 1
Nett Valve Lift:   Intake: 9.35mm Exhaust: 9.35mm
Advertised Duration @ 0.10mm Intake: 280 Exhaust: 280
Duration @ 1.00mm VALVE LIFT Intake: 234 Exhaust: 234
Timing @ 1.00mm VALVE LIFT IVO: 7 BTDC EVO: 51 BBDC
    IVC: 47 ABDC EVC: 3 ATDC
Suggested Centre Lines:   Intake: 110 Exhaust: 114
VALVE Lift @ TDC Intake: 1.59mm Exhaust: 1.20

 

 

 H182-SC

Engine Make: Engine Model: Part Number:
NISSAN RB20&25DE/T H182-SC
Valve Clearance: Intake:   Set   at the  
  Exhaust:   Set   at the  
 
Cam Lift:   Intake: 10.00mm Exhaust: 10.00mm
Rocker Ratio:   Intake: 1 Exhaust: 1
Nett Valve Lift:   Intake: 10.00mm Exhaust: 10.00mm
Advertised Duration @ 0.10mm Intake: 272 Exhaust: 272
Duration @ 1.00mm VALVE LIFT Intake: 232 Exhaust: 232
Timing @ 1.00mm VALVE LIFT IVO: 6 BTDC EVO: 50 BBDC
    IVC: 46 ABDC EVC: 2 ATDC
Suggested Centre Lines:   Intake: 110 Exhaust: 114
VALVE Lift @ TDC Intake: 1.70mm Exhaust: 1.20

 

 

 H182-SD

Engine Make: Engine Model: Part Number:
NISSAN RB20&25DE/T H182-SD
Valve Clearance: Intake:   Set   at the  
  Exhaust:   Set   at the  
 
Cam Lift:   Intake: 10.00mm Exhaust: 10.00mm
Rocker Ratio:   Intake: 1 Exhaust: 1
Nett Valve Lift:   Intake: 10.00mm Exhaust: 10.00mm
Advertised Duration @ 0.10mm Intake: 278 Exhaust: 278
Duration @ 1.00mm VALVE LIFT Intake: 238 Exhaust: 238
Timing @ 1.00mm VALVE LIFT IVO: 9 BTDC EVO: 55 BBDC
    IVC: 49 ABDC EVC: 3 ATDC
Suggested Centre Lines:   Intake: 110 Exhaust: 116
VALVE Lift @ TDC Intake: 1.84mm Exhaust: 1.31

Fitment Table