Dynamat (Knockoff) Nightmare - Sloppy Interior Heat / Sound Insulation

[m3f_ventura_328Ci]

In the process of fixing all the crap that the previous owner fudged on this E36, I came across this heap of a mess under the carpet.


My question is, what should I do with this stuff? Rip it out and replace it with a higher quality material seems like the best idea.


What if I just remove this heat/sound deadening material without replacing it? Is such aftermarket material a "must have" in the E36? The cabin gets very hot compared to my E46, especially near the gas pedal and the transmission tunnel. This is why I feel like keeping some sort of insulation is a good idea..

[m3f_Sharocks]

Should have just bought my car....


I would find a donor car at a scrap yard and start transferring parts over, or go to Home Depot and find insulation that would work with this application.

[m3f_ECS Tuning]

I'd start ripping that out a heat gun (or the opposite dry ice) and a needle gun work wonders on that type stuff. We stripped out all the factory sound deadening in my car a while back. After enjoying the extra heat and sound I laid down some DEIs BoomMat (goofy name but it's great stuff) and their Shield II to knock back some of the heat and sound that pulling the stock stuff created. The DEI stuff is not only lighter than the stock deadening but in my opinion it does a far superior job.

[m3f_Jim E.]

I'd start ripping that out a heat gun (or the opposite dry ice) and a needle gun work wonders on that type stuff. We stripped out all the factory sound deadening in my car a while back. After enjoying the extra heat and sound I laid down some DEIs BoomMat (goofy name but it's great stuff) and their Shield II to knock back some of the heat and sound that pulling the stock stuff created. The DEI stuff is not only lighter than the stock deadening but in my opinion it does a far superior job.

any pics of your car with BoomMat?

[m3f_ECS Tuning]

When I get home tonight I'll look on my home computer and see if I took any, I don't think I did but I'll double check.

[m3f_iGreek]

Like ECSTuning said, use heat gun or dry ice. Dry ice works quite well, but that really looks like a mess. Another thing I would recommend is this roofing material from Home Depot:



Quick Roof Instant Waterproof Repair and Re-Roofing Material



I used this in a stripped out 240sx and made it into my daily driver. Worked perfect and lays down super easy. A lot of people use it. Google it. Good luck!

[m3f_ventura_328Ci]

Should have just bought my car....



I would find a donor car at a scrap yard and start transferring parts over, or go to Home Depot and find insulation that would work with this application.

Well would you have been willing to sell your car for $5k?



I have all of the parts, carpet, etc.; I just removed everything to find out what needs to be replaced and take care of this mess.

I'd start ripping that out a heat gun (or the opposite dry ice) and a needle gun work wonders on that type stuff. We stripped out all the factory sound deadening in my car a while back. After enjoying the extra heat and sound I laid down some DEIs BoomMat (goofy name but it's great stuff) and their Shield II to knock back some of the heat and sound that pulling the stock stuff created. The DEI stuff is not only lighter than the stock deadening but in my opinion it does a far superior job.

This stuff looks like it doesn't even have an adhesive back. The foam is falling apart and there appears to be very little adhesion besides the areas that are duct taped. I should just be able to rip this junk out!

Like ECSTuning said, use heat gun or dry ice. Dry ice works quite well, but that really looks like a mess. Another thing I would recommend is this roofing material from Home Depot:



Quick Roof Instant Waterproof Repair and Re-Roofing Material



I used this in a stripped out 240sx and made it into my daily driver. Worked perfect and lays down super easy. A lot of people use it. Google it. Good luck!

The description doesn't say anything about reducing heat.. Can you verify whether this stuff keeps the heat out? It seems like a great affordable alternative!

[m3f_iGreek]

The description doesn't say anything about reducing heat.. Can you verify whether this stuff keeps the heat out? It seems like a great affordable alternative!

It definitely does, or did in my application. In most track cars, stripped out where you feet are, doesn't work out, depending on the setup. In my old 240sx, the turbo was bottom mounted, right by your feet. From it, ran a 3" downpipe, all the way under my seat. With this material, I never had heat problems. It was always nice and cool. It's used as roof insulation, so you better bet that it keeps heat out.



I remember some guys that had their drift cars, completely stripped out, and the heat from the motors/turbos would melt the bottom of the soles of their shoes. You don't want that! Lol. Google some reviews on it and decided what you want to do. Personally, in my application, it worked great, was cheap and I did a whole car with it. It makes for a good conversation piece too, when you outwitted the guy that spent hundreds of dollars on Dynomat.

[m3f_Kalahari]

This looks like my spare tire well. God I hope the rest of the car isn't the same way...

[m3f_ECS Tuning]

This stuff looks like it doesn't even have an adhesive back. The foam is falling apart and there appears to be very little adhesion besides the areas that are duct taped. I should just be able to rip this junk out!

I that case start ripping away! I'd wear gloves just in case it's a fiberglass filler... that stuff itches like CRAZY when you get it under your nails.

[m3f_cracky]

or go to Home Depot

wut....

[m3f_white-hot]

That crap looks like what the HVAC guys make formed ducts out of. Some PO's will always grab the cheap $hit rather than do it right the first time. There are thousands of E36's sitting in junkyards around the country, why not find one with carpet/insulation still intact (and not ruined by the windows being left open) and grab it? Or, you could go to Home Depot, lol. Home Depot is easier...

[m3f_egebhardt]

What is the goal here?

Why was the carpet removed in the first place?

[m3f_nofattys]

ABSOLUTELY DO NOT BUY PEEL AND STICK FROM HOME DEPOT....unless you want your car to smell like a freshly laid driveway in the summer.


If you want to reduce sound you need MLV mat, not sound deadener. Sound deadener, like what the PO laid in the car turns vibrations into head by adding mass. They do not block sound.


Here are two very highly rated places to get your acoustic supplies from.


www.sounddeadenershowdown.com or

www.secondskinaudio.com which actually has a specific solution to your heat problems.


BTW, you dont need to coat your entire car in the crab, if you are using CLD tiles, you only need some in laid down in the middle of the flat panel. Curved or bent panels dont resonate.

[m3f_hcaleman]

Was about to post the same two sites. The OE carpet is already fairly heavy and padded. Some MLV on the large flat areas under the seats should help maybe couple with a bit of closed cell foam. If you have a heat issue make sure the heat shields are still in the transmission tunnel.



I would do dry ice before a heat gun, that crap makes such a mess when hot.