Noico Liner (1 Viewer)

[Ocho77]

We have the interior gutted to place the Noico Insulation and the Noico Sound Dampening material.

Question: My wife and I have scraped all the "fiber" insulation off the floor of the truck. Do I "have" to remove the black hardened insulation (as some do with dry ice), or can I place the Noico liners on top of it?

Also, all the wires in the passenger footwell, did you guys leave those under the liner, or put the liner under them?

Thanks!

Cheers

 

[gummycarbs]

I've sound deadened a few cars, and I'm currently doing my 80. In my opinion, the factory sound deadening is way more effective than butyl sheets could be. Maybe if you stripped it, then put down several layers of the thickest stuff.

I'm putting Noico on the outer door panels, the rear quarter panels, and a few spots that seem slightly resonant, like the transmission hump. Then I'm putting down carpet padding to replace the old just fiber, with mass loaded vinyl from McMaster Carr over that.

Remember that butyl sheets are for adding mass and lowering resonant frequency, not for blocking sound. Mass loaded vinyl acts as a sound barrier, and insulation turns sound vibration into heat.

 

[Ocho77]

I've sound deadened a few cars, and I'm currently doing my 80. In my opinion, the factory sound deadening is way more effective than butyl sheets could be. Maybe if you stripped it, then put down several layers of the thickest stuff.

I'm putting Noico on the outer door panels, the rear quarter panels, and a few spots that seem slightly resonant, like the transmission hump. Then I'm putting down carpet padding to replace the old just fiber, with mass loaded vinyl from McMaster Carr over that.

Remember that butyl sheets are for adding mass and lowering resonant frequency, not for blocking sound. Mass loaded vinyl acts as a sound barrier, and insulation turns sound vibration into heat.

Thanks, that makes sense. The issue is that I've stripped all the fiber from the carpet when I pressure washed it, so now I have bare floor, noico liner and carpet. Not sure if that will be enough, or if I should add some sort of padding. Need to be finished by Monday

 

[gummycarbs]

Thanks, that makes sense. The issue is that I've stripped all the fiber from the carpet when I pressure washed it, so now I have bare floor, noico liner and carpet. Not sure if that will be enough, or if I should add some sort of padding. Need to be finished by Monday

IMO, Noico Liner looks awfully thin. But I don't know anything about it. I'm using foam carpet padding from Lowes. Like I said, it's best to have some kind of insulator (foam) trapped between the sheet metal on the bottom and a sound-blocking material above. The factory carpeting doesn't have any kind of vinyl or rubber layer on it, which is why I'm going with mass-loaded vinyl.

Of course, there's always the problem of fitting the formed carpet back into the car after adding padding underneath...

 

[baldilocks]

Some swear by Thermozite but you may have to order it which takes time. After doing some research on Mud and then other car enthusiast sites, I decided to to try an inexpensive product called Reflectix available at Lowes.

I put down butyl sound deadener then Reflectix and then, in the front floor board, I re-installed some ordinary insulation that is reflective on one side, which the PO had put in. My carpet also retains most of its ínsulation.

My 80 is noticeably quieter, especially reduced gear whine from the transfer case, but it's not what I would call quiet. It's a truck with lots of big rotating gears and bearings and mine has 37" Mud tires so to expect it to be "quiet" would be silly.

My biggest battle is heat soaking the passenger side with exhaust system heat while creeping down a trail.

 

[gummycarbs]

My 80 is noticeably quieter, especially reduced gear whine from the transfer case, but it's not what I would call quiet.

The lowest hanging fruit is probably the transmission tunnel. The top is only covered by the center console, with nothing to absorb or block noise besides the sheet metal.

I think the 80 is remarkably quiet. They put in a considerable amount of sound deadening on most of the floor, a bit in the rear quarter, nice, thick jute padding, and more or less a double seal on the front doors.

I've noticed an awful lot of holes in the floor sheet metal that are covered in either some kind of plastic or fiber disc, or with a plastic plug. Those are probably great routes for road and gear noise.

 

[baldilocks]

The lowest hanging fruit is probably the transmission tunnel. The top is only covered by the center console, with nothing to absorb or block noise besides the sheet metal.

I think the 80 is remarkably quiet. They put in a considerable amount of sound deadening on most of the floor, a bit in the rear quarter, nice, thick jute padding, and more or less a double seal on the front doors.

I've noticed an awful lot of holes in the floor sheet metal that are covered in either some kind of plastic or fiber disc, or with a plastic plug. Those are probably great routes for road and gear noise.

My 80 was quieter too before 37" super swampers. Transfer case produces a high frequency whine and gives of a LOT of heat basically right beneath the center console. That's why I have three layers of butyl sound deadener and some insulation under the console and over the tunnel. I went as far as to stick sound deadener on the underside of the shifter console and center console. Is my 80 quieter than my fj40's were? hell yes. Is it quieter than my old bronco and dodge ramcharger? Hell yes. But the 80 is not quiet by today's standards and I don't know that I even what mine to be.