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<blockquote data-quote="Buck" data-source="post: 8755591" data-attributes="member: 591582">It&#039;s difficult to predict how a car will act with the box firing forward.&nbsp; Like, I wonder if the wave is going back into the trunk and getting stuck in there, or if it&#039;s causing any kind of cancellation.&nbsp; That gap around the box is so small, the pressure is higher at the face of the box, but if that air gets in the trunk, I doubt it&#039;s going to have enough energy to escape, when it can only escape back around the box edges, it looks like.&nbsp; You could be creating a weird cancellation where that gap around the box could be acting as a port, and the trunk an enclosure, being accessed by those gaps.&nbsp; You could just stick some of that deadener to the face of the box to the car metal.&nbsp; Not sure if it would stay that way....you could do high density foam since there&#039;s deadener everywhere, and then you could put deadener over that to seal it.&nbsp; The foam would keep the deadener from pushing in, some.&nbsp; You might have to get creative with it.&nbsp; High density foam is fairly strong, at least the kind I filled my entire hatch was.&nbsp; Just some thoughts.</blockquote>

[QUOTE="Buck, post: 8755591, member: 591582"] It's difficult to predict how a car will act with the box firing forward. Like, I wonder if the wave is going back into the trunk and getting stuck in there, or if it's causing any kind of cancellation. That gap around the box is so small, the pressure is higher at the face of the box, but if that air gets in the trunk, I doubt it's going to have enough energy to escape, when it can only escape back around the box edges, it looks like. You could be creating a weird cancellation where that gap around the box could be acting as a port, and the trunk an enclosure, being accessed by those gaps. You could just stick some of that deadener to the face of the box to the car metal. Not sure if it would stay that way....you could do high density foam since there's deadener everywhere, and then you could put deadener over that to seal it. The foam would keep the deadener from pushing in, some. You might have to get creative with it. High density foam is fairly strong, at least the kind I filled my entire hatch was. Just some thoughts. [/QUOTE]

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