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snowman snowman is offline
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Join Date: Feb 2003
Location: So California
Posts: 3,787
Since your the real science type of guy I would suggest that you do some calcs or use an engine sim program to do them for you and check out what the flow above 0.4" gives you. Basically NOTHING (execpt extreem valve train wear) unless your willing to rev the thing to 12000 rpm.

In terms of numbers its like 5% more flow, but for only 1% of the time, ie 0.01 times 0.05 equals 0.0005 which is pretty darn close to NOTHING. TO put this in HP numbers, say you end up with 400HP the extra lift will give you about 400.2HP, if you are lucky.

I am not a true expert on this subject but Dema Elgin of Elgin Cams is. I would also talk to him for real answers about your cam and heads. He is also a racer as well as a world renown mfg of camshafts. He is usually available and will actually talk to us peons if you give him a call. He is at

Last edited by snowman; 04-18-2005 at 08:39 PM..
Old 04-18-2005, 08:25 PM
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