Interior and Upholstery Sound deadening fox interior questions

[AnthonyA1234]

Going to order some Kilmat to apply throughout my fox interior. I had a couple questions I wanted to ask you guys.

First off, what did you guys do regarding all of the wires above the floor board in the car? How do you work around that? See pics below.

Secondly, I already removed most of the stuck on factory deadning already but I still have that foam deadner that just sits on top. Once I put the kilmat can I throw that away? Or should I leave it?

 

[AeroCoupe]

I used a panel popping tool and got the wiring off the floor board. Laid the dynomat down then located the holes and cut the dynomat away and reinstalled the wiring harnesses.

I reinstalled the pieces of automotive carpet jute padding which is what I believe you are calling “foam”. This is also glued to the back of the carpet.

 

[AnthonyA1234]

I used a panel popping tool and got the wiring off the floor board. Laid the dynomat down then located the holes and cut the dynomat away and reinstalled the wiring harnesses.

I reinstalled the pieces of automotive carpet jute padding which is what I believe you are calling “foam”. This is also glued to the back of the carpet.

Got it. Where did you apply the dynamat? I’m wondering other worthwhile places to put it besides the floor.

 

[Noobz347]

Doors, trunk lid, cargo floor, trans tunnel, floor panels, firewall, and if you're feeling [really] squirrely, between the roof and headliner.

The cool part is that you don't have to cover every square inch of [any] of those areas to get the effect.

You can leave openings where there are troublesome artifacts in the way. It makes [zero] difference.

 

[AnthonyA1234]

Doors, trunk lid, cargo floor, trans tunnel, floor panels, firewall, and if you're feeling [really] squirrely, between the roof and headliner.

The cool part is that you don't have to cover every square inch of [any] of those areas to get the effect.

You can leave openings where there are troublesome artifacts in the way. It makes [zero] difference.

For the doors I’m going to want to put the dynamat inside the panel through the access holes so that it’s on the inside of the exterior metal correct?

 

[Noobz347]

 

[86HO5.0]

I did the same as Aerocoupe, popped the wiring up, laid the mat down and popped the clip back into place.

Only the main tub was done in my car, from the firewall to the rear seat. Butyl mat covered in CCF. Some butyl mat was placed on the outer/inner door skins and CCF was applied directly to the door panels. Tremendous difference in road noise.

 

[AeroCoupe]

Might be easier than trying to get matting in tight spots.

Amazon.com

 

[AnthonyA1234]

Sounds good thanks guys. In regards to the carpet, should I go with the one that has the mass backing or am I good without it?

 

[86HO5.0]

IMO--Get carpet with mass backing.

 

[85GTStangGuy]

Sounds like your goal is to quiet down the inside of the car.... if so, than the mass-backed carpet is the way to go.

 

[limp]

Sounds like your goal is to quiet down the inside of the car.... if so, than the mass-backed carpet is the way to go.

What reasons would there be to NOT use the mass backed carpet?

 

[mikestang63]

did the dynomat on the 86 T Top and it made a world of difference. Used dry ice to remove the factory sound deadener and a wire wheel to clean the floors, then I POR15 everything, then installed the Kilmat. Half way through the install on my 90 vert. Bought 2 boxes on Amazon for like $60 and still have plenty left

 

[Mustang5L5]

You do not need 100% coverage with the sound deadener. That's a huge misconception. The material adds mass to the panel and changes it's resonance so you don't need that much to do so. However, everyone, including myself, go for 100% coverage.

I went around the wires. I trimmed the sound deadener to just go up to the wires and then cut a piece to go on the opposite side. I also used some Noico 150mil foam around the trans tunnel to cut down on heat. I put as much of the OE sound insulator back as I could, and I'm running an OEM carpet.

 

[2000xp8]

What did you guys do for the doors?
I have mine apart, first i need to change the passenger side door pins (so it doesn't get heavier before i do it), then i'll need to kilmat it.
I saw a video where during a speaker install the did inside the door around the speaker but didn't seem to do much more (which i will do since i'm switching the stereo system to a 5 channel amp and all rockford speakers)
The dynamat pics from their kit on lmr make it look like you cover all access holes. Not so sure i love that idea.

 

[Mustang5L5]

I did not cover all the holes. I put some sheets through the holes on the backside of the interior skin, and some sheets on the flat portions of the interior metal panel. Covered a few little holes

 

[AnthonyA1234]

Do you need that moisture barrier? Should I tape mine back on

 

[2000xp8]

As of right now i didn't plan on putting mine back on.
30 years ago i clearly did a halfassed duct tape job on the original. It was not good and my door panel itself is still decent, no mold or mildew.
And that comes from a time when it was a daily driver, rain, snow etc.
Now it sits in the garage.

With that said, i have at least 6 of them from LMR because i forget what i ordered...

 

[General karthief]

Do you need that moisture barrier? Should I tape mine back on

Yeah, kinda do. It keeps the dust/dirt and moisture inside the door and off the back of the door panel and inside the car.
I'm gonna fix my door lock actuators (again!) and I'm sure mine are pretty trashed (hint, hint, wink @2000xp8 )

 

[limp]

Yeah, kinda do. It keeps the dust/dirt and moisture inside the door and off the back of the door panel and inside the car.
I'm gonna fix my door lock actuators (again!) and I'm sure mine are pretty trashed (hint, hint, wink @2000xp8 )

Is the precut plastic liner LMR sells the one to use?