[Steve C.]

Summary

The most important cam design parameters are the four timing events or equivalently the advance, intake and exhaust duration and lobe separation angle.

Once the four timing parameters are established, the cam should be designed for maximum lift

A quick opening and closing cam will provide better low end performance than one that is slower opening.

The trick is to know what values to use for the timing parameters. Although we know general ranges of values and trends, the timing numbers must be established from performance experience.

A discussion of camshaft terminology, camshaft performance, lobe design methods and valve train dynamics:

http://tildentechnologies.com/Cams/CamPerformance.html

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