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 |  SKU: 188-A

Kelford Performance Camshafts

Nissan Silvia/180SX S13 (SR20 Non-VTC)
$847.00
Camshaft Profile
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Description

 

This Kelford Cams range of street and race track proven camshafts are for the SR20DET non-NVCS hydraulic lifter engines.

This range of cams give our customers the benefits of increasing power and extending the life of parts.

Our catalogue offering cater for a range of applications, including our ultimate drift specification which features low seat to seat duration for fast spool and lots of top end power.

However, if you can't find your perfect camshaft within our catalogue, designing custom profiles is our specialty, or we can manufacture a cam to your specifications.

 

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

188-A:

  • 260/266 Degrees advertised duration, 11.80mm/11.00mm lift.
  • Street performance cams to suit small turbo upgrade. High lift and low duration for great low end, and midrange power. Require KVS93 valve springs.

188-A2:

  • 266/270 Degrees advertised duration, 11.00mm/11.00mm lift.
  • High performance "drop in" cams to suit stock valve springs. Requires ECU re-tune.

188-B:

  • 268/272 Degrees advertised duration, 12.00mm/11.50mm lift.
  • Ultimate drift spec cams featuring maximum lobe area and low duration for fast spool and lots of top end power. Requires KVS93 valve springs. KVS93-BT valve springs are required if running over 2 bar boost.

188-C:

  • 280/280 Degrees advertised duration, 12.50mm/12.00mm lift.
  • 280 Degree racing cams to suit street / strip engines with a large turbo. Requires KVS93 valve springs. KVS93-BT valve springs are required if running over 2 bar boost.

188-D:

  • 284/290 Degrees advertised duration, 12.50mm/12.00mm lift.
  • 284/290 Degree drag racing cams to suit large turbo, high boost SR20 motors using E85 or Methanol. Requires KVS93-BT valve springs.

188-EZ:

  • 254/254 Degrees advertised duration, 11.30mm/11.30mm lift.
  • Drop-In cam to suit factory valve springs. Must retain stock rev limit and not exceed 1.5 bar of boost.

 

Technical Specifications

188-A

Engine Make: Engine Model: Part Number:
NISSAN SR20DET S13 TURBO 188-A
Valve Clearance: Intake:   Set   at the  
  Exhaust:   Set   at the  
 
Cam Lift:   Intake: 7.61mm Exhaust: 7.10mm
Rocker Ratio:   Intake: 1.55 Exhaust: 1.55
Nett Valve Lift:   Intake: 11.80mm Exhaust: 11.00mm
Advertised Duration @ 0.10mm Intake: 260 Exhaust: 266
Duration @ 1.00mm VALVE LIFT Intake: 218 Exhaust: 222
Timing @ 1.00mm VALVE LIFT IVO: 1 BTDC EVO: 43 BBDC
    IVC: 37 ABDC EVC: 1 BTDC
Suggested Centre Lines:   Intake: 108 Exhaust: 112
VALVE Lift @ TDC Intake: 1.12mm Exhaust: 0.92

 

 

 188-A2

Engine Make: Engine Model: Part Number:
NISSAN SR20DET S13 TURBO 188-A2
Valve Clearance: Intake:   Set   at the  
  Exhaust:   Set   at the  
 
Cam Lift:   Intake: 7.10mm Exhaust: 7.10mm
Rocker Ratio:   Intake: 1.55 Exhaust: 1.55
Nett Valve Lift:   Intake: 11.00mm Exhaust: 11.00mm
Advertised Duration @ 0.10mm Intake: 266 Exhaust: 270
Duration @ 1.00mm VALVE LIFT Intake: 224 Exhaust: 228
Timing @ 1.00mm VALVE LIFT IVO: 4 BTDC EVO: 48 BBDC
    IVC: 40 ABDC EVC: 0 TDC
Suggested Centre Lines:   Intake: 108 Exhaust: 114
VALVE Lift @ TDC Intake: 1.47mm Exhaust: 0.96

 

 

 188-B

Engine Make: Engine Model: Part Number:
NISSAN SR20DET S13 TURBO 188-B
Valve Clearance: Intake:   Set   at the  
  Exhaust:   Set   at the  
 
Cam Lift:   Intake: 7.74mm Exhaust: 7.42mm
Rocker Ratio:   Intake: 1.55 Exhaust: 1.55
Nett Valve Lift:   Intake: 12.00mm Exhaust: 11.50mm
Advertised Duration @ 0.10mm Intake: 268 Exhaust: 272
Duration @ 1.00mm VALVE LIFT Intake: 226 Exhaust: 230
Timing @ 1.00mm VALVE LIFT IVO: 5 BTDC EVO: 50 BBDC
    IVC: 41 ABDC EVC: 0 TDC
Suggested Centre Lines:   Intake: 108 Exhaust: 115
VALVE Lift @ TDC Intake: 1.52mm Exhaust: 1.06

 

 

 188-C

Engine Make: Engine Model: Part Number:
NISSAN SR20DET S13 TURBO 188-C
Valve Clearance: Intake:   Set   at the  
  Exhaust:   Set   at the  
 
Cam Lift:   Intake: 8.06mm Exhaust: 7.74mm
Rocker Ratio:   Intake: 1.55 Exhaust: 1.55
Nett Valve Lift:   Intake: 12.50mm Exhaust: 12.00mm
Advertised Duration @ 0.10mm Intake: 280 Exhaust: 280
Duration @ 1.00mm VALVE LIFT Intake: 236 Exhaust: 236
Timing @ 1.00mm VALVE LIFT IVO: 8 BTDC EVO: 53 BBDC
    IVC: 48 ABDC EVC: 3 ATDC
Suggested Centre Lines:   Intake: 110 Exhaust: 115
VALVE Lift @ TDC Intake: 1.82mm Exhaust: 1.28

 

 

 188-D

Engine Make: Engine Model: Part Number:
NISSAN SR20DET 188-D
Valve Clearance: Intake:   Set   at the  
  Exhaust:   Set   at the  
 
Cam Lift:   Intake: 8.06mm Exhaust: 7.74mm
Rocker Ratio:   Intake: 1.55 Exhaust: 1.55
Nett Valve Lift:   Intake: 12.50mm Exhaust: 12.00mm
Advertised Duration @ 0.10mm Intake: 284 Exhaust: 290
Duration @ 1.00mm VALVE LIFT Intake: 240 Exhaust: 246
Timing @ 1.00mm VALVE LIFT IVO: 10 BTDC EVO: 61 BBDC
    IVC: 50 ABDC EVC: 5 ATDC
Suggested Centre Lines:   Intake: 110 Exhaust: 118
VALVE Lift @ TDC Intake: 2.06mm Exhaust: 1.47

 

 

188-EZ

 

Engine Make: Engine Model: Part Number:
NISSAN SR20DET S13 TURBO 188-EZ
Valve Clearance: Intake:   Set   at the  
  Exhaust:   Set   at the  
 
Cam Lift:   Intake: 7.29mm Exhaust: 7.29mm
Rocker Ratio:   Intake: 1.55 Exhaust: 1.55
Nett Valve Lift:   Intake: 11.30mm Exhaust: 11.30mm
Advertised Duration @ 0.10mm Intake: 254 Exhaust: 254
Duration @ 1.00mm VALVE LIFT Intake: 220 Exhaust: 220
Timing @ 1.00mm VALVE LIFT IVO: 2 BTDC EVO: 42 BBDC
    IVC: 38 ABDC EVC: 2 BTDC
Suggested Centre Lines:   Intake: 108 Exhaust: 112
VALVE Lift @ TDC Intake: 1.17mm Exhaust: 0.84

Fitment Table