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Original Message
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| RE: Performer RPM cam timing |
| By Gerry Proctor - 02/04/2004 9:40:59 AM; IP 207.133.188.254 |
Retarding a cam delays the intake closing. There are a lot of variables that determine how any particular cam will perform in an engine but the later the intake closes, the more you shift the cam's power band toward the higher rpm range. Of couse, there is still no free lunch so what this band shift does is kill some of your low end torque. Advancing the cam has the opposite effect.
If your particular combination favors higher rpm volumetric efficiency and operation, it can make a difference in performance. If not, then it is the automotive equivalent to "Hey kid, you'll shoot your eye out." |
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