AFAccord
Well-Known Member
While I'm excited to get my new chassis up and running again, I find my attempts to quiet down the car and improve my listening experience snowballing out of control. If you've followed any of my other build threads, you know this is par for the course. Here is my story...
As I began re-installing wires and harnesses into the new car, it became evident that the dash needed to be removed to make room for all the bits and pieces on the firewall. This made it easy to start my sound deadening adventure while everything was out of the way.
To start, everything on the engine bay side of the firewall needed to be removed for better access.
With everything cleared out of the way, I carefully laid out a piece of the CLD (constraint layer damper aka Dynamat Xtreme) across the firewall, with some DEI heatshielding on top as a true thermal barrier.
Cleaned up some more and re-installed some of the components.
With the dash now out, the next step was to go overboard, and line the opposite side of the firewall with even more CLD. This is turning into more of a mass loaded panel to block noise at this point, rather than just dampening the panel.
At this point, I should have gone ahead and thrown down some CCF (Closed Cell Foam) to decouple the firewall, and laid in some mass loaded vinyl (MLV) to act as an acoustic barrier, however, sourcing the right stuff has been difficult and I'm still waiting for my first order to arrive. I'll likely go back and slip some MLV as far up the firewall as I can.
The next logical step was to re-install the foam/vinyl blanket so the dash can go back in.
Hopefully the rest of my supplies will be coming in this week and I can find time to get started with the rest of the car. I'll continue to cover the chassis with the CLD tiles, and then I want to seal off the quarter panels beside the rear seats since they have open access to the rear wheel wells and trunk area. I'm going to treat them with acoustic foam and then seal the holes with plexi glass. CLD will go on top of that, and then every surface inside the cabin from the window level down will receive a layer of CCF to decouple the panels from the MLV that will be suspended over top. All of the trim pieces will receive some CLD to prevent them from vibrating, and then more CCF to prevent them from rattling against the chassis. Stay tuned!
As I began re-installing wires and harnesses into the new car, it became evident that the dash needed to be removed to make room for all the bits and pieces on the firewall. This made it easy to start my sound deadening adventure while everything was out of the way.
To start, everything on the engine bay side of the firewall needed to be removed for better access.
With everything cleared out of the way, I carefully laid out a piece of the CLD (constraint layer damper aka Dynamat Xtreme) across the firewall, with some DEI heatshielding on top as a true thermal barrier.
Cleaned up some more and re-installed some of the components.
With the dash now out, the next step was to go overboard, and line the opposite side of the firewall with even more CLD. This is turning into more of a mass loaded panel to block noise at this point, rather than just dampening the panel.
At this point, I should have gone ahead and thrown down some CCF (Closed Cell Foam) to decouple the firewall, and laid in some mass loaded vinyl (MLV) to act as an acoustic barrier, however, sourcing the right stuff has been difficult and I'm still waiting for my first order to arrive. I'll likely go back and slip some MLV as far up the firewall as I can.
The next logical step was to re-install the foam/vinyl blanket so the dash can go back in.
Hopefully the rest of my supplies will be coming in this week and I can find time to get started with the rest of the car. I'll continue to cover the chassis with the CLD tiles, and then I want to seal off the quarter panels beside the rear seats since they have open access to the rear wheel wells and trunk area. I'm going to treat them with acoustic foam and then seal the holes with plexi glass. CLD will go on top of that, and then every surface inside the cabin from the window level down will receive a layer of CCF to decouple the panels from the MLV that will be suspended over top. All of the trim pieces will receive some CLD to prevent them from vibrating, and then more CCF to prevent them from rattling against the chassis. Stay tuned!
