Profil Noken As/Camshaft Yamaha YZ 450F - Ingin tahu seperti apa profil noken as motor SE (Special Engine) yang terkenal dengan performa nya? Silahkan disimak keterangan di bawah ini.
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noken as YZ 450F |
Stock 06-09 YFZ450
- Intake Lift : 8.64 mm
- Exhaust Lift : 8.45 mm
- Intake Lobe Center : 107º
- Exhaust Lobe Center : 123º
- Intake Duration (@1 mm lift): 256º
- Exhaust Duration (@1 mm lift): 258º
- Intake Open/Close: 21 btc/55 abc
- Exhaust Open/Close: 72 bbc/6 atc
- Lobe Separation Angle : 115º
- Overlap: 27º
Comments: Exhaust cam is advanced from the factory. Better all-around performance is achieved by retarding the exhaust camshaft one tooth.
Stock 06-09 YFZ450 with "Cam Mod"
- Intake Lift : 8.64 mm
- Exhaust Lift : 8.45 mm
- Intake Lobe Center : 107º
- Exhaust Lobe Center : 100.5 º
- Intake Duration (@1 mm lift): 256º
- Exhaust Duration (@1 mm lift): 258º
- Intake Open/Close: 21 btc/55 abc
- Exhaust Open/Close: 49.5 bbc/28.5 atc
- Lobe Separation Angle: 103.75º
- Overlap: 49.5º
Comments: Increased performance across the board compared to stock. Excellent benchmark for comparing aftermarket cams.
Stock 08-09 YZ450f
- Intake Lift : 8.64 mm
- Exhaust Lift : 8.45 mm
- Intake Lobe Center : 97º
- Exhaust Lobe Center : 103º
- Intake Duration (@1 mm lift): 256º
- Exhaust Duration (@1 mm lift): 258º
- Intake Open/Close: 31 btc/45 abc
- Exhaust Open/Close: 52 bbc/26 atc
- Lobe Separation Angle: 100º
- Overlap: 57º
Comments: Possible budget early IVC/high overlap setup. YFZ450 exhaust cam in "cam mod" position will increase overlap to 59.5.
Hot Cams Stage 1 (4023 in/4044 ex)
- Intake Lift(inches/mm): 8.86
- Exhaust Lift(inches/mm): 8.67
- Intake Lobe Center (degrees): 110
- Exhaust Lobe Center (degrees): 103
- Intake Duration (degrees at .040"): 269
- Exhaust Duration (degrees at .040"): 265
- Intake Open / Close: 24.5 btc/64.5 abc
- Exhaust Open / Close: 55.5 bbc/29.5 atc
- Lobe Separation Angle: 106.5
- Overlap: 54
Comments: Top-end gain compared to stock "cam mod". Stock springs and retainers OK.
Hot Cams Stage 3 (4097 in/4098 ex)
- Intake Lift(inches/mm): 8.89
- Exhaust Lift(inches/mm): 8.74
- Intake Lobe Center (degrees): 108
- Exhaust Lobe Center (degrees): 97.25
- Intake Duration (degrees at .040"): 260
- Exhaust Duration (degrees at .040"): 253.5
- Intake Open / Close: 22 btc/58 abc
- Exhaust Open / Close: 44 bbc/29.5 atc
- Lobe Separation Angle: 102.625
- Overlap: 51.5
Comments: Trades some Stage 1 top-end for mid-range. Stock springs and retainers OK.
Web 297/192 "Torque" Profile (exhaust retarded 1 tooth)
- Intake Lift(inches/mm): .360/9.14
- Exhaust Lift(inches/mm): .338/8.59
- Intake Lobe Center (degrees): 107
- Exhaust Lobe Center (degrees): 100.5
- Intake Duration (degrees at .050"): 244
- Exhaust Duration (degrees at .050"): 247
- Intake Open / Close: 15 btc/49 abc
- Exhaust Open / Close: 44 bbc/23 atc
- Lobe Separation Angle: 103.75
- Overlap: 38
Comments: Web cam card duration and event info is at .050" lift, so duration-related numbers will appear low compared to other cams rated at .040" lift.
Web 943 (most aggressive in catalog with stock valve springs)
- Intake Lift(inches/mm): .355/9.02
- Exhaust Lift(inches/mm): .355/9.02
- Intake Lobe Center (degrees): 107
- Exhaust Lobe Center (degrees): 100.5
- Intake Duration (degrees at .050"): 258
- Exhaust Duration (degrees at .050"): 258
- Intake Open / Close: 22 btc/56 abc
- Exhaust Open / Close: 49.5 bbc/28.5 atc
- Lobe Separation Angle: 103.75
- Overlap: 50.5
Comments: Web cam card duration and event info is at .050" lift, so duration-related numbers will appear low compared to other cams rated at .040" lift.
Web 963/216
- Intake Lift(inches/mm): .356/9.04
- Exhaust Lift(inches/mm): .363/9.22
- Intake Lobe Center (degrees): 107
- Exhaust Lobe Center (degrees): 100.5
- Intake Duration (degrees at .050"): 262
- Exhaust Duration (degrees at .050"): 263
- Intake Open / Close: 24 btc/58 abc
- Exhaust Open / Close: 52 bbc/31 atc
- Lobe Separation Angle: 103.75
- Overlap: 55
Comments: Requires performance valve spring kit. Web cam card duration and event info is at .050" lift, so duration-related numbers will appear low compared to other cams rated at .040" lift.
MMAD Lightspeed
- Intake Lift(inches/mm): .384/9.75
- Exhaust Lift(inches/mm): .384/9.75
- Intake Lobe Center (degrees): 108
- Exhaust Lobe Center (degrees): 105 (small core exhaust)-110 (big core/meg/OOF)
- Intake Duration (degrees at .040"): 266
- Exhaust Duration (degrees at .040"): 266
- Intake Open / Close: 25 btc/61 abc
- Exhaust Open / Close: 63 bbc/23 atc (at 110 lobe center)
- Lobe Separation Angle: 109
- Overlap: 48
Comments: Drag race cam, HD springs required.