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Old 12-04-2013, 09:04 PM
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Default 4th Order Design Program

I'm working on something similar to Torres but for 4th orders.. It works for ported boxes too, but doesn't have quite all the options to be ideal for that yet.

Progress so far after plugging in the specs for a FI Team 18 (hybrid between daily and SPL)



I need a better way to determine the optimal sealed/ported volume and port area. I've got a good way to estimate, but something more scientific would be nice.

Options right now: any size rectangle port, any size aero, any amount of aeros. Also has a quick option for a square port. Right now I have to manually set the sealed and ported volume. I've been shooting for about 45-50 sealed Fc and a 1.5-2.5:1 ratio for daily boxes.
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Old 12-04-2013, 09:09 PM
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Lots of info in this thread

The 4th order thread
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Old 12-04-2013, 09:10 PM
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Lots of info in this thread

The 4th order thread
Already read the entire thing, a couple of times too. I was active in it when it first went up.
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Old 12-31-2013, 10:27 PM
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im curious to see what ever happened with this
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Old 01-01-2014, 01:45 PM
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im curious to see what ever happened with this
I decided to go a different route with my build so it kind of got abandoned. I can give you access to the partially complete version if you'd like although it's not much of anything special right now. I never got around to adding end correction factor, flares, external ports, etc.. Just send me a PM with your google account if you want
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Old 01-01-2014, 02:10 PM
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pm me id be glad to test it out
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Old 01-01-2014, 02:59 PM
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so im going to post this here..
even though its just a script/spreadsheet
its alot easier than by hand. and everything is coming out as if I have done so
there are things that are going to have to be changed. other than that its great.
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