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NEW BUILD IDEA, need help with port dimensions :)
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<blockquote data-quote="akheathen" data-source="post: 7447765" data-attributes="member: 629234"><p>oh, tripple wowee..... first, i need to start making sure there is not another page before posting, lol, 2nd, i can't belive i read that right. mobile measured the port from the outside, not the centerline?!?!?!?, and 3rd, you went way backwards on that port area. that is only 7.3"^2 per cu, which is absolutely tiny.... like those truck boxes that had the tiny 1.5" round ports in them or even bigger prefabs back inthe day, the ports really did nothing.......... and yours will be highly inefficient and barely effective. at lower power levels, say 300watts, the port will have an effect, but with some ral power, not so much. if you hadn't already glassed it, i would suggest putting it in raw, with just sealant and seeing how you like it. then, when it doesn't reall have the output you expected, then add 1.5-2" width to the port and it will be more than you hoped for.... your tuning and volume #'s were just about spot on, so you are doing good there, just remember lenght of the port is measured down the centerrline of the port, and port displacement also includes 1/2 width of the port beyond.....</p></blockquote><p></p>
[QUOTE="akheathen, post: 7447765, member: 629234"] oh, tripple wowee..... first, i need to start making sure there is not another page before posting, lol, 2nd, i can't belive i read that right. mobile measured the port from the outside, not the centerline?!?!?!?, and 3rd, you went way backwards on that port area. that is only 7.3"^2 per cu, which is absolutely tiny.... like those truck boxes that had the tiny 1.5" round ports in them or even bigger prefabs back inthe day, the ports really did nothing.......... and yours will be highly inefficient and barely effective. at lower power levels, say 300watts, the port will have an effect, but with some ral power, not so much. if you hadn't already glassed it, i would suggest putting it in raw, with just sealant and seeing how you like it. then, when it doesn't reall have the output you expected, then add 1.5-2" width to the port and it will be more than you hoped for.... your tuning and volume #'s were just about spot on, so you are doing good there, just remember lenght of the port is measured down the centerrline of the port, and port displacement also includes 1/2 width of the port beyond..... [/QUOTE]
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NEW BUILD IDEA, need help with port dimensions :)
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