Re: Starting 1966 Factory Short Bed Build, Bagged, 383 Stroker and Muncie M20 4-Speed
There are other ways to affect the way a bass reflex enclosure is tuned that is not directly related to volume. By varying the amount of polyfill that you use within the box, you can simulate a larger enclosure and achieve performance results that match a larger box with less fill.
In other words, while there is absolutely a precision level of science to all of this, which SkinnyG has so proficiently demonstrated, you also have some wiggle room with the size of your enclosure which complements the science with duct tape and bandaids. |
Re: Starting 1966 Factory Short Bed Build, Bagged, 383 Stroker and Muncie M20 4-Speed
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Re: Starting 1966 Factory Short Bed Build, Bagged, 383 Stroker and Muncie M20 4-Speed
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Here is the box so far
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Re: Starting 1966 Factory Short Bed Build, Bagged, 383 Stroker and Muncie M20 4-Speed
So after the great advice from SkinnyG, i redid a few of the dimensions, of course after cutting the front piece and now i need a complete new sheet, but live and learn. After all calculations are in, the box ended at free air (not including the vent) of 1.18 cubic Ft. Then taking the vent at .11 cubic ft from the i ended up with 1.07 cubic ft of air space per sub. I will be adding poly fill also to increase the "air Space" a small amount, but overall i am happy with it.
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Re: Starting 1966 Factory Short Bed Build, Bagged, 383 Stroker and Muncie M20 4-Speed
Very cool. I have a similar slot port box in my '77 with a single 12".
There is talk that a "slot" port like that will act a little lower than a regular port in an "open" box, as the "walls" the port uses extend the tuning frequency lower than the actual "port wall" itself is cut to. I think you add half the port height/width to the tune length, but I've forgotten exactly. However, It's going to thump awesome. It'll work. I'd stuff some poly fill in there regardless. |
Re: Starting 1966 Factory Short Bed Build, Bagged, 383 Stroker and Muncie M20 4-Speed
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(big.grin)
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Re: Starting 1966 Factory Short Bed Build, Bagged, 383 Stroker and Muncie M20 4-Speed
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Used a jig to get holes cut.
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Part done
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Done
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Painted
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Speaker wire connectors
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Box set into its place, plenty of room, suggestions how to secure it there?
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2nd pic
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Re: Starting 1966 Factory Short Bed Build, Bagged, 383 Stroker and Muncie M20 4-Speed
OEM-looking gas tank straps would be cool.
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Re: Starting 1966 Factory Short Bed Build, Bagged, 383 Stroker and Muncie M20 4-Speed
Very cool build! Looking forward to catching up on this one.
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Re: Starting 1966 Factory Short Bed Build, Bagged, 383 Stroker and Muncie M20 4-Speed
Ok everyone, i am looking for suggestions for Aluminum Radiator with Electric Fan/Shroud. Please give input. I find them from stock looking replacements to really wide ones. not sure what is best, easy, yada yada... 3 - Row, 4 - Row, 1 large fan, 2 smaller fans.... damn help someone please..
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Re: Starting 1966 Factory Short Bed Build, Bagged, 383 Stroker and Muncie M20 4-Speed
I am currently looking at a 4-row with electric fan and shroud by Alloyworks.
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Re: Starting 1966 Factory Short Bed Build, Bagged, 383 Stroker and Muncie M20 4-Speed
Well now looking at reviews.... maybe we do Cold Case radiator?
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Re: Starting 1966 Factory Short Bed Build, Bagged, 383 Stroker and Muncie M20 4-Speed
I used RND fabrication...made in the US and are a sponsor. I use a Derale electric fans...2000 CFM...one for cooling one when the A/C kicks on. I think one fan would have been enough...but 2 is more better right? LOL
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