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Cam Theory 1800

posted by  CyaLater on  Tue Feb 22 20:45 CST 2005
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Just some quick observations without reading:

Cam A: the red contact point moves as it should, it starts in the middle, as the lobe reaches maximum acceleration the red contact point moves towards the outside edge of the lifter & then as it decelerates it moves to the centre again. This gives the best wear of cam & lifters.

Cam B: appears to start at maximum velocity, when opening it would simply try & smash eveything to bits. If you did this when closing it would cause the valve to bounce off the seat indefinately.

Cam C: isn't possible with any kind of flat lifter, but the most radical roller cams look like this.

Cam D: is trying to emulate a roller cam. It won't last very long because your red contact point doesn't move very far.





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