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techtalk:ref:engmech01f [2020/03/24 01:28]
ixl2relax 		techtalk:ref:engmech01f [2024/01/14 18:08] (current)
hippysmack
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 [[http://​www.compcams.com/​valve-timing-tutorial|Valve Timing Tutorial - From Comp Cams]] [[http://​www.compcams.com/​valve-timing-tutorial|Valve Timing Tutorial - From Comp Cams]]
  
 +\\
 +
 +===== Cam Comparisons =====
 +
 +{{:​techtalk:​ref:​engmech:​cam-comparespecs-d-w-se-chart.jpg?​500|}}((Chart Annotated by IXL2Relax))
 +
 +
 +\\
 +
 +===== W Cams - '​04-later version used in '​91-'​03 Engines =====
 +
 +'​W'​ Cams were stock on the 1998-2003 Sport model only. They were also stock on the 1200 engine models from 2004-2006 (not the 883s). Then they became stock on all models from 2007-later.
 +
 +Thanks to Aaron Wilson of Hammer Performance for the many contributions to the XLForum.net.
 +
 +{{:​techtalk:​ref:​engmech:​cams-w-notch-nonotch.jpg?​400|}}((Pic from Aaron Wilson at https://​www.xlforum.net/​forum/​sportster-motorcycle-forum/​sportster-motorcycle-motor-engine/​sportster-motorcycle-bottom-end/​169567-opinions-on-w-grind-cam?​t=1819937))
 +
 +The #2 cam on the left is machined for the timing cup and therefore will work in 91-03 bikes. The #2 cam on the right can only be used in 04+ (crank trigger) bikes, unless someone does the machining.
 +
 +Even though they went to crank trigger in '04, they continued to ship the bikes with cams that were machined for the timing cup, for awhile. So there are W cams from 04+ bikes floating around out there that can be used in 91-03 models. Always check to be sure. ((Above info quoted from Aaron Wilson at https://​www.xlforum.net/​forum/​sportster-motorcycle-forum/​sportster-motorcycle-motor-engine/​sportster-motorcycle-bottom-end/​169567-opinions-on-w-grind-cam?​t=1819937))
  
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