Profil Noken As/Camshaft Yamaha YZ 450F

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.

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.