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KHA 2023 SS Camaro - SQ Build Log
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<blockquote data-quote="keep_hope_alive" data-source="post: 8855607" data-attributes="member: 576029"><p>At this point, I have used about 6 sheets of CLD (deadener) and about 30 cu.ft. of insulation. If I stopped here, the result would be a much quieter car with road and tire noise from the rear being nearly inaudible, because noise from the doors/floor/front would dominate. That is how you perceive sound - you perceive the loudest source and once you eliminate that, you perceive the second loudest... then third... then fourth... and so on. </p><p></p><p>What makes the rear quarters so problematic is the surface area. It is also the more difficult area to access given how much disassembly is required. Because that volume is open to the trunk, we have the entire trunk/rear/quarter/floor/wheel well/etc. directed into the cabin with only plastic to contain it. Now, I do give GM some credit for the one barrier/pad that is behind the speaker. Without that, road noise would be MUCH louder in this car. </p><p></p><p>This is what I'm stuffing into the cavities: </p><p><img src="https://hosting.photobucket.com/images/e128/phat_funky_beats/20230831_205046.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Had a shop buddy, he just wanted to hang out. </p><p><img src="https://hosting.photobucket.com/images/e128/phat_funky_beats/20230830_230212.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>This is a mostly complete driver's side - for the insulation. It still needs a lot of CLD and then CCF.</p><p><img src="https://hosting.photobucket.com/images/e128/phat_funky_beats/20230901_141701.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>The passenger side required removal of the battery, which is fairly easy at this point. </p><p></p><p><img src="https://hosting.photobucket.com/images/e128/phat_funky_beats/20230901_143613.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p><img src="https://hosting.photobucket.com/images/e128/phat_funky_beats/20230901_150523.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>battery tray is stuffed below and then CLD is added.</p><p><img src="https://hosting.photobucket.com/images/e128/phat_funky_beats/20230901_145355.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p><img src="https://hosting.photobucket.com/images/e128/phat_funky_beats/20230901_152726.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Now it is ready for the battery. I have added a closed cell foam (CCF) to the top of the battery tray and where mounts connect to pad those contact surfaces. CCF is the next step during reassembly. I also have a thermal barrier covering the opening to the quarter panel to contain the insulation fibers. I don't want the battery area getting dusty from those fibers. The thermal barrier is just a dense layer of ultratouch insulation with a foil facing. This stuff is handy to use on the floor as well. </p><p></p><p><img src="https://hosting.photobucket.com/images/e128/phat_funky_beats/20230901_153839.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Battery reinstalled. I may do a full layer of CCF behind it to fully encapsulate the area, and it will look nice too. </p><p><img src="https://hosting.photobucket.com/images/e128/phat_funky_beats/20230901_154923.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="keep_hope_alive, post: 8855607, member: 576029"] At this point, I have used about 6 sheets of CLD (deadener) and about 30 cu.ft. of insulation. If I stopped here, the result would be a much quieter car with road and tire noise from the rear being nearly inaudible, because noise from the doors/floor/front would dominate. That is how you perceive sound - you perceive the loudest source and once you eliminate that, you perceive the second loudest... then third... then fourth... and so on. What makes the rear quarters so problematic is the surface area. It is also the more difficult area to access given how much disassembly is required. Because that volume is open to the trunk, we have the entire trunk/rear/quarter/floor/wheel well/etc. directed into the cabin with only plastic to contain it. Now, I do give GM some credit for the one barrier/pad that is behind the speaker. Without that, road noise would be MUCH louder in this car. This is what I'm stuffing into the cavities: [IMG]https://hosting.photobucket.com/images/e128/phat_funky_beats/20230831_205046.jpg[/IMG] Had a shop buddy, he just wanted to hang out. [img]https://hosting.photobucket.com/images/e128/phat_funky_beats/20230830_230212.jpg[/img] This is a mostly complete driver's side - for the insulation. It still needs a lot of CLD and then CCF. [IMG]https://hosting.photobucket.com/images/e128/phat_funky_beats/20230901_141701.jpg[/IMG] The passenger side required removal of the battery, which is fairly easy at this point. [IMG]https://hosting.photobucket.com/images/e128/phat_funky_beats/20230901_143613.jpg[/IMG] [IMG]https://hosting.photobucket.com/images/e128/phat_funky_beats/20230901_150523.jpg[/IMG] battery tray is stuffed below and then CLD is added. [IMG]https://hosting.photobucket.com/images/e128/phat_funky_beats/20230901_145355.jpg[/IMG] [IMG]https://hosting.photobucket.com/images/e128/phat_funky_beats/20230901_152726.jpg[/IMG] Now it is ready for the battery. I have added a closed cell foam (CCF) to the top of the battery tray and where mounts connect to pad those contact surfaces. CCF is the next step during reassembly. I also have a thermal barrier covering the opening to the quarter panel to contain the insulation fibers. I don't want the battery area getting dusty from those fibers. The thermal barrier is just a dense layer of ultratouch insulation with a foil facing. This stuff is handy to use on the floor as well. [IMG]https://hosting.photobucket.com/images/e128/phat_funky_beats/20230901_153839.jpg[/IMG] Battery reinstalled. I may do a full layer of CCF behind it to fully encapsulate the area, and it will look nice too. [IMG]https://hosting.photobucket.com/images/e128/phat_funky_beats/20230901_154923.jpg[/IMG] [/QUOTE]
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