cc305 and cc503 ?
Registered User
Joined: Jan 2001
Posts: 2,148
From: Bay Area, CA
Hotcam is a 218/228. The cc503 is an XE grind.
305 or Hotcam pass with proper tuning, maybe even without, as for the XE I dont know, its small enough there is a good chance, some claim the XEs are dirtier though.
305 or Hotcam pass with proper tuning, maybe even without, as for the XE I dont know, its small enough there is a good chance, some claim the XEs are dirtier though.
Registered User
Joined: Nov 2001
Posts: 3,515
From: Kansas
CC305 at .050" is 220/230 lift of .510/.510
CC503(XE 224/230) at .050" is 224/230 .503/.510
now when you buy a cc305 its usually ground on a 114 LSA whereas the XE is on a 112 LSA. what make a cam "dirty" however is the overlap since it forces unburnt fuel into the exhaust system. the more overlap you have.. the harder it should be to pass emissions. doing a little figuring, you get a total of 55 degrees overlap with the cc305 compared to the XE of 54.5 degrees on a 112. given that.. the XE should actually be a "cleaner" cam than the cc305 but it would hardly be noticed unless you get the cc305 ground on a 112 like many ppl do which will increase overlap to 59 degrees.
CC503(XE 224/230) at .050" is 224/230 .503/.510
now when you buy a cc305 its usually ground on a 114 LSA whereas the XE is on a 112 LSA. what make a cam "dirty" however is the overlap since it forces unburnt fuel into the exhaust system. the more overlap you have.. the harder it should be to pass emissions. doing a little figuring, you get a total of 55 degrees overlap with the cc305 compared to the XE of 54.5 degrees on a 112. given that.. the XE should actually be a "cleaner" cam than the cc305 but it would hardly be noticed unless you get the cc305 ground on a 112 like many ppl do which will increase overlap to 59 degrees.
Last edited by turbo_Z; Apr 6, 2003 at 05:17 PM.
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dhirocz
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Jul 23, 2002 05:03 PM