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

[m3f_ventura_328Ci]

Spent the day cleaning this out and finally got the interior looking decent again. I was pleasantly surprised to find all of the factory heat/sound insulation mats/lining still intact and stuck to the floor board when I removed the other material. For the time being, I think I'll just stick with stock lining without adding any new material and see how it holds up.

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.

Great to know! The only thing that worries me is that people seem to say that this asphalt stuff runs and drips, whereas the more expensive butyl alternatives do not. I would hate to destroy the floor of my car with dripping asphalt. I'll have to look into this more before I decide what to go with.

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...

That is EXACTLY what it is!! It basically rotted out and deteriorated, making it a major pain in the ass to get out of the car. Took me several hours to scrape all the nasty gunk off.



I still have the OEM carpet and heat lining in tact.

What is the goal here?

Why was the carpet removed in the first place?

The goal is a very thorough cleaning of the car. I noticed the carpet had been modified and fit like crap, which was a result of the insulation mess beneath it; hence why I tore it up. I also wanted to remove everything to see which interior parts, clips, etc. are broken and need replacing.

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.

I hear the asphalt smell goes away after about a week. It's not really an issue for me because I always drive with the windows open.



Thanks for the tips, but I am mainly looking to reduce heat; not really worried about sound at the moment. Good to know for the future though!

If you have a heat issue make sure the heat shields are still in the transmission tunnel.

Ah, very good point! I never checked to see if the heat shields are still there. That might explain everything, thanks!

[m3f_Sirius]

Good lord. Kill it with fire.

[m3f_enderw88]

Ah, very good point! I never checked to see if the heat shields are still there. That might explain everything, thanks!

Actually I don't notice any difference. I removed my tunnel shield a few weeks ago when I installed my new transmission. I have noticed no difference in noise or heat, and I am in Tucson, I saw 114F on the thermostat yesterday...

[m3f_RickO1]

I saw 114F on the thermostat yesterday...

Yea, but it a dry heat!

[m3f_hcaleman]

Hey it's true. I preferred 130+ days in the Dubai summer vs. 100 degree days in Florida and Alabama. The humidity was very low in the day time in Dubai which made it bearable.

[m3f_enderw88]

Hey it's true. I preferred 130+ days in the Dubai summer vs. 100 degree days in Florida and Alabama. The humidity was very low in the day time in Dubai which made it bearable.

True that.

[m3f_RickO1]

Hey it's true. I preferred 130+ days in the Dubai summer vs. 100 degree days in Florida and Alabama. The humidity was very low in the day time in Dubai which made it bearable.

Very true. We lived in Montana for 6 years before moving back to the Gulf Coast. The arid climate of the mountains was outstanding in the summer and the winter. We didn't even have air conditioning until the final summer we lived up there and that was only really needed during a brief period when the days got up to 100 degrees. I'll take it any time of year over the humid south.

[m3f_nofattys]

Try second skin audio, they have a specific application for heat reduction in vehicles