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techtalk:evo:engmech02 [2019/02/22 01:48]
hippysmack [00-05 Lifter Ant-Rotation Screws]
techtalk:evo:engmech02 [2019/08/11 03:28]
ixl2relax [Comparing OEM and Andrews Cam Grinds]
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 ====== Camshafts ====== ====== Camshafts ======
-===== Cam Specs =====+===== Cam Specs - OEM & SE =====
  
 {{:​techtalk:​evo:​engmech:​camspecs-d-w-se-chart.jpg|400}} {{:​techtalk:​evo:​engmech:​camspecs-d-w-se-chart.jpg|400}}
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 |C ((MMI Evolution Cam Specs dated 10/​5/​92))|.278"​|1°ATDC|42° ABDC|225°|.280"​|42° BBDC|3° ATDC|225°|4°| |C ((MMI Evolution Cam Specs dated 10/​5/​92))|.278"​|1°ATDC|42° ABDC|225°|.280"​|42° BBDC|3° ATDC|225°|4°|
  
-==== Comparing ​Andrews and OEM Cam Grinds ==== +==== Comparing OEM and Andrews ​Cam Grinds ==== 
-These figures are from the Sportster Evolution Cams PDF from Andrews Products.+These figures are from the Sportster Evolution Cams PDF from Andrews Products. ​((Page25 - http://​www.bigboarv-twin.com/​wp-content/​uploads/​2015/​07/​Andrews-Products-Catalogue-20141.pdf))
  
-|Grind|Timing \\ @ .053" Lift|CL|Duration @ \\ .053" Lift|Durarion @ \\ .020" Lift|Max Lift|TDC Lift| +|Grind|I/E|Timing \\ @ .053" Lift|CL|Duration @ \\ .053" Lift|Durarion @ \\ .020" Lift|Max Lift|TDC Lift| 
-|W|10°/​28°|99°|218°|256°|.474"​|.122"​| +|W|I|10°/​28°|99°|218°|256°|.474"​|.122"​| 
-|W|38°/​16°|101°|234°|272°|.474"​|.138"​| +|:::|E|38°/​16°|101°|234°|272°|.474"​|.138"​| 
-|N-4|30°/​46°|98°|256°|296°|.490"​|.216"​| +|N4|I|30°/​46°|98°|256°|296°|.490"​|.216"​| 
-|N-4|52°/​24°|104°|256°|296°|.490"​|.189"​|+|:::|E|52°/​24°|104°|256°|296°|.490"​|.189"​| 
 + 
 + 
 +I/E = Intake/​Exhaust --- CL = Centerline 
 + 
 +\\ 
 + 
 + 
 +Thanks to Maxeffort of the XLForum for the following Degree Wheel Charts of these various cams.\\ 
 +Note that the measurements are based on the .053 lift specs. 
 + 
 +{{:​techtalk:​evo:​engmech:​camwheel-hdw-218-234-474-maxeffort.jpg?​400|}} ​  ​{{:​techtalk:​evo:​engmech:​camwheel-hdd-223-223-458-maxeffort.jpg?​400|}}\\ 
 +{{:​techtalk:​evo:​engmech:​camwheel-an4-256-256-490-maxeffort.jpg?​400|}} ​  ​{{:​techtalk:​evo:​engmech:​camwheel-an2-240-244-465-440-maxeffort.jpg?​v|}}\\ 
 +{{:​techtalk:​evo:​engmech:​camwheel-h560-256-266-560-maxeffort.jpg?​400|}} ​  ​{{:​techtalk:​evo:​engmech:​camwheel-h570-240-250-570-maxeffort.jpg?​400|}}\\ 
 +{{:​techtalk:​evo:​engmech:​camwheel-rs567-253-253-567-maxeffort.jpg?​v|}} ​  ​{{:​techtalk:​evo:​engmech:​camwheel-rs575-244-244-575-maxeffort.jpg?​400|}}
  
  
-CL = Centerline 
 ===== Removing / Installing Evo Cams ===== ===== Removing / Installing Evo Cams =====
 ===== Sub Documents ===== ===== Sub Documents =====
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 |{{:​techtalk:​evo:​engmech:​anti-rotation_pin_hardware_by_hippysmack.jpg?​direct&​300|}}|{{:​techtalk:​evo:​engmech:​anti-rotation_pin_hardware_2_by_hippysmack.jpg?​direct&​300|}}|{{:​techtalk:​evo:​engmech:​anti-rotation_pin_o-ring_by_hippysmack.jpg?​direct&​300|}}| |{{:​techtalk:​evo:​engmech:​anti-rotation_pin_hardware_by_hippysmack.jpg?​direct&​300|}}|{{:​techtalk:​evo:​engmech:​anti-rotation_pin_hardware_2_by_hippysmack.jpg?​direct&​300|}}|{{:​techtalk:​evo:​engmech:​anti-rotation_pin_o-ring_by_hippysmack.jpg?​direct&​300|}}|
  
-|  App. dims ((photos by Hippysmack)) ​ ||+|  App. pin dims ((photos by Hippysmack)) ​ ||
 |{{:​techtalk:​evo:​engmech:​91-99_anti-rotation_pins_7_by_hippysmack.jpg?​direct&​300|}}|{{:​techtalk:​evo:​engmech:​91-99_anti-rotation_pins_8_by_hippysmack.jpg?​direct&​300|}}| |{{:​techtalk:​evo:​engmech:​91-99_anti-rotation_pins_7_by_hippysmack.jpg?​direct&​300|}}|{{:​techtalk:​evo:​engmech:​91-99_anti-rotation_pins_8_by_hippysmack.jpg?​direct&​300|}}|
 +
 +|  App. pin plate dims ((photos by Hippysmack)) ​ |||
 +|{{:​techtalk:​evo:​engmech:​91-99_anti-rotation_pins_9_by_hippysmack.jpg?​direct&​300|}}|{{:​techtalk:​evo:​engmech:​91-99_anti-rotation_pins_10_by_hippysmack.jpg?​direct&​300|}}|{{:​techtalk:​evo:​engmech:​91-99_anti-rotation_pins_11_by_hippysmack.jpg?​direct&​300|}}|
  
 |  Slide the pins in the holes, install the O-rings over the pins. ((photos by Hippysmack)) ​ ||| |  Slide the pins in the holes, install the O-rings over the pins. ((photos by Hippysmack)) ​ |||