I came across this term while looking through my engine specifications. The Rocker Arm Ratio is given as 1:52 : 1. What is it? The amount of travel?
Thanks in advance
- posted
15 years ago
Rocker Arm Ratio
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- posted
15 years ago
It's the ratio between the travel of the pushrod to the travel of the valve. At 1.5 to 1 the pushrod would move 1/2 inch to move the valve 3/4 of an inch.
Al
- Vote on answer
- posted
15 years ago
The rocker arm ratio is the difference between the pushrod travel to the valve travel. So if the cam "lifts" the pushrod .5", the valve will open .76 inch.
Al