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<blockquote data-quote="SmokeyDog" data-source="post: 6349670" data-attributes="member: 614830"><p>i look and look and i can find anyone know the are of a 4 inch round port ?</p><p></p><p>and if you have a round port you want to have the same, more, or less port area?</p><p></p><p>building a box with round ports 9.05 cubic feet after all displacement not includeing ports. thinking 6 4'' ports 12 3/4'' long, half in box half out.</p><p></p><p>or</p><p></p><p>8 4'' ports 17 3/4 long depending on port area needs</p><p></p><p>i going to use pvc pipe if i can find bigger dim pipe ill get it but 4 is the biggest ive found. i figure ill flare them on both ends, note the extra 1/4inch for flare. or close to it.</p><p></p><p>new box is being started tomorrow, i made a mock up of the box anf this one fits so i am good</p></blockquote><p></p>
[QUOTE="SmokeyDog, post: 6349670, member: 614830"] i look and look and i can find anyone know the are of a 4 inch round port ? and if you have a round port you want to have the same, more, or less port area? building a box with round ports 9.05 cubic feet after all displacement not includeing ports. thinking 6 4'' ports 12 3/4'' long, half in box half out. or 8 4'' ports 17 3/4 long depending on port area needs i going to use pvc pipe if i can find bigger dim pipe ill get it but 4 is the biggest ive found. i figure ill flare them on both ends, note the extra 1/4inch for flare. or close to it. new box is being started tomorrow, i made a mock up of the box anf this one fits so i am good [/QUOTE]
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