Cam advance / whats up

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Re: Cam advance / whats up [Re: emarine01] #225622 02/15/09 01:28 PM 02/15/09 01:28 PM
Joined: Nov 2007 Posts: 21,831 Kirkland, Washington Pacnorthcuda Too Many Posts
Pacnorthcuda Too Many Posts Joined: Nov 2007 Posts: 21,831 Kirkland, Washington	Quote: In one of the engine masters comps I saw engine builders with 10+ degrees advance? 112 @100 & [Email]108@98[/Email] whats up with this, I thought ouce you went much past 4 degrees you had the wrong cam? I am still trying to figure the lsa thing out , can some of you guys with wide lsa explain why you went with 110 or 112 instead of 108 or 106 and how it effects your power band A wider LSA will be a tamer cam due to less overlap, and ultimately make lass peak power in most cases. The Wide LSA can make for a broader powerband. More idle vacuum with the wide LSA. Basically takes out some of the symptoms of long duration (due to their overlap) cams. LSA is ground into the cam (its the spacing of the intake lobe relative to the exhaust lobe), Advancing/Retarding the cams intake centerline (ICL) is different. Why the engine builders are advancing theirs that much--I don't know.

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