racing valve question
May 30, 2005, 08:14 AM
#2
its how many angles they port the valve openings. So in a 3 angle, they port it from 3 different angles, and a 5 angle, well, they port it from 5 angles. It is done to increase the flow of air into the cylinder and also make the air flow more smoothly. You can do a valve job and still stay with a stock sized valve, or you can go to a 1mm oversize valve, which again allows more airflow. On a stock size valve you can make up to 500whp easy.
May 30, 2005, 08:26 AM
#4
Originally Posted by VTEC Killer
its how many angles they port the valve openings. So in a 3 angle, they port it from 3 different angles, and a 5 angle, well, they port it from 5 angles. It is done to increase the flow of air into the cylinder and also make the air flow more smoothly. You can do a valve job and still stay with a stock sized valve, or you can go to a 1mm oversize valve, which again allows more airflow. On a stock size valve you can make up to 500whp easy.
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Jun 3, 2005, 09:28 AM
#15
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You can think of multi angle valve jobs like routering a countertop. The more angles the smoother the radius on each side of where the valve and seat actually touch.
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