BLH Posted May 8, 2012 Report Share Posted May 8, 2012 so if you are makeing a turn with a port u would add add half of the size of what the port is? is this write or em i wrong (example if my port is 4 inchs i would add 2 inchs to it when it turns and 2 inches to it when it turns up) Quote Link to comment Share on other sites More sharing options...
ChevyBoy95 Posted May 8, 2012 Report Share Posted May 8, 2012 (edited) the measurement is down the MIDDLE of the port. Edited May 8, 2012 by ChevyBoy95 Quote Best Score to Date : 160.5 dB Outlaw (47Hz)[4 XM 15's & 2 Taramps Bass 12k's] BL : http://www.stevemeadedesigns.com/board/topic/147800-chevyboy95s-4-15s-7krms-wall-1533-db-on-half-power/YouTube: http://www.youtube.com/hitemwiththeflex/ Link to comment Share on other sites More sharing options...
knowledge Posted May 8, 2012 Report Share Posted May 8, 2012 (edited) what u mean the middle? Edited May 8, 2012 by knowledge Quote REFF'SMy linkEBAYhttp://feedback.ebay...ck&myworld=trueI love car audio so much because I will never be done. I can never win, and I will never get it finished or perfect. It always has me coming back for more, I can never get my fill of it, but I get what I need. Link to comment Share on other sites More sharing options...
Torres Posted May 8, 2012 Report Share Posted May 8, 2012 if you were to measure down the inside of the port, the effective port length would be shorter. likewise, if you were to measure down the outside of the port, it would be longer. measuring down the middle of the width of the port gives you an accurate measurement. Quote Link to comment Share on other sites More sharing options...
Joe X Posted May 8, 2012 Report Share Posted May 8, 2012 Here is an example for a port that is 31" long: Quote Link to comment Share on other sites More sharing options...
BLH Posted May 8, 2012 Author Report Share Posted May 8, 2012 thanks guys i got it now start bilding box tomorrow cant wate Quote Link to comment Share on other sites More sharing options...
Altima1 Posted May 9, 2012 Report Share Posted May 9, 2012 if you were to measure down the inside of the port, the effective port length would be shorter. likewise, if you were to measure down the outside of the port, it would be longer. measuring down the middle of the width of the port gives you an accurate measurement. So on your calculator the length you put in for the port would be the measurement down the middle of the port and the physical port length is the inside of the wall? Take a look at my forum please.. http://www.stevemeadedesigns.com/board/topic/142010-torres-box-tuning-calculator-design-help-15sp4/ Quote 149.4 Db @ 30Hz Outlaw With One 15" Fi Team Sub, Trunk Build. !!!!!Hair Tricks!!!!!Check Out The Build Log http://www.stevemead...0-4-and-t400-4/Watch The Videos http://www.youtube.com/user/jcplaya3 Link to comment Share on other sites More sharing options...
Torres Posted May 9, 2012 Report Share Posted May 9, 2012 you are exactly correct haha i like how you link to that thread, and that thread links to here lol Quote Link to comment Share on other sites More sharing options...
Altima1 Posted May 10, 2012 Report Share Posted May 10, 2012 you are exactly correct haha i like how you link to that thread, and that thread links to here lol No it goes to a thread i started yesterday, i need help because i want to put 45's in the bend of the port for my box and i was wondering if it would change the calculations on you program like the tuning freq or the port area since the bend in the port is actually wider from the corner of the box to the corner of the port wall. Quote 149.4 Db @ 30Hz Outlaw With One 15" Fi Team Sub, Trunk Build. !!!!!Hair Tricks!!!!!Check Out The Build Log http://www.stevemead...0-4-and-t400-4/Watch The Videos http://www.youtube.com/user/jcplaya3 Link to comment Share on other sites More sharing options...
412 CVX Posted May 10, 2012 Report Share Posted May 10, 2012 45's don't change anything, as long as you make them the right size Quote Just say no to Ground Pounder Customs. My temp system build log More box buildssome cars do over 170db with one sub, so clearly my two 12"s can do that in my car, with my knowledge too! look out bitches! I'm with captain stupid. Link to comment Share on other sites More sharing options...
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