02-06-2011, 12:42 PM
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CC Member
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Join Date: Feb 2007
Location: Colorado Springs,
CO
Cobra Make, Engine: Backdraft, supercharged Coyote
Posts: 2,453
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Quote:
Originally Posted by Wbulk
Good information. I think the frustrating part of cam selection is the companies give very little information about the cams they are tying to sell. Dyno results are mostly non-existent. Then it appears they mix and match their specs so it's very hard to compare apples to apples. One will give opening and closing specs at .006, another at .050 and another at .004. The only thing that would give you an idea of comparison was the standard .050 duration comparison and I'm seeing that is missing on some of the cam adds now.
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You're right. Sometimes comparing cams from differant makes is difficult for exactly that reason.
For duration, pay attention to the .050 number. That's really the only one that counts, as that is where airflow is generally considered to start and end.
As for power, way too many variables involved for a cam m aker to tell you that. Programs like Desktop Dyno are helpfull in comparing components.
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