[Steve C.]

During the early 90’s David Vizard's Cam Master program was conceived and began to take shape. David and Denny Wyckoff at Motor Machine & Supply in Tucson developed the program, a comprehensive computer program that offered precise cam selection. It was a empirical program based on over 50,000 individual engine dyno pulls on various engine combinations. Written up in National Dragster and other magazines. Cam Master was not duration-driven but overlap-driven. The event timing of the cam, dictated by the duration of the intake and exhaust, together with the Lobe Center Angle (David used that term for lobe separation angle) and the advance/retard position in the engine. Once the overlap to suit a given application is decided, everything else falls into place. It was Denny Wyckoff that ran the program for the public thru his shop. Since then David has brought out different programs.


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