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2003 Jetta build V4.1 AKA "Violently Expensive"
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<blockquote data-quote="mat3833" data-source="post: 8791145" data-attributes="member: 587645"><p>Alright, got the final enclosure size figured out I think. Don't have actual dimensions written down since I need to do a final test fit of the enclosure in the car and being Florida it started ******* pouring. BUT if it fits the external dimensions will be as follows.</p><p></p><p>Enclosure is 31.5 deep on top, 20.75deep on bottom, 51.5 wide at the front, 42.5 wide at the back, and 24.5 tall. Here's where it gets a bit rough on the dimensions since the enclosure isn't a rectangle.</p><p></p><p>The back is at an angle and works out to about 27-5/8, and to clear the wheel wells there is little triangle cut out from the 51.5 at the top and bottom in the rear. It's a 6.5" transition and goes from 51.5 down to 42.5. Works out to about 15.3 cubes on paper, but once I test fit the enclosure I'll get proper measurements and break out the trapezoidal, triangular, and rectangular prism calculators and figure out the actual internal volume. </p><p></p><p>After loosing a cube or so for sub and bracing, I'll be left with about 14 cubes net sealed or ported. The enclosure will start out sealed, but the rear will have a Cutout and a blanking plate where an external port can be bolted on to come up through the rear deck. I have no idea how much port area I need for this, but a 14" square port only needs to be 30" long to give me 30hz tuning and that's 196 square inches of port. </p><p></p><p>Any idea how much port area I need for 370 square inches of cone area and 31mm of xmax? I doubt I'll be able to reach Xmax on 3k with the pair of these, I don't trust winisd. </p><p></p><p></p><p>Matt</p></blockquote><p></p>
[QUOTE="mat3833, post: 8791145, member: 587645"] Alright, got the final enclosure size figured out I think. Don't have actual dimensions written down since I need to do a final test fit of the enclosure in the car and being Florida it started ******* pouring. BUT if it fits the external dimensions will be as follows. Enclosure is 31.5 deep on top, 20.75deep on bottom, 51.5 wide at the front, 42.5 wide at the back, and 24.5 tall. Here's where it gets a bit rough on the dimensions since the enclosure isn't a rectangle. The back is at an angle and works out to about 27-5/8, and to clear the wheel wells there is little triangle cut out from the 51.5 at the top and bottom in the rear. It's a 6.5" transition and goes from 51.5 down to 42.5. Works out to about 15.3 cubes on paper, but once I test fit the enclosure I'll get proper measurements and break out the trapezoidal, triangular, and rectangular prism calculators and figure out the actual internal volume. After loosing a cube or so for sub and bracing, I'll be left with about 14 cubes net sealed or ported. The enclosure will start out sealed, but the rear will have a Cutout and a blanking plate where an external port can be bolted on to come up through the rear deck. I have no idea how much port area I need for this, but a 14" square port only needs to be 30" long to give me 30hz tuning and that's 196 square inches of port. Any idea how much port area I need for 370 square inches of cone area and 31mm of xmax? I doubt I'll be able to reach Xmax on 3k with the pair of these, I don't trust winisd. Matt [/QUOTE]
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