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Discussion Starter #1
The inside front passenger area gets very hot in the summer. Especially when crawling in a cruise! Right now there is some of the original insulation on the firewall. Some is missing, and falling off. What are some materials to use, to help stop the transfer of heat, from engine bay into cabin? Though about using foil backed fiberglass insulation. Just like the material used in home building. Batt type insulation. Does this sound feasible, or any other material better than others? Thank you in advance.
 

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I had a similar issue years back when I swapped a stout small block in an s-10. I bought a product called “the insulator” and installed it on the firewall and the floor where the headers/exhaust ran. Basically it was 3/8” thick insulation typically found on the back of automotive carpet, topped with a layer of shiny foil. Mounted foil side up, it made a huge difference and not too thick that it affected the fitment of the carpet.

Very similar, if not the same as this product https://www.summitracing.com/parts/tru-30000-12406

Check out the video of guys installing it here:

Hope that helps.



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Quiet Ride Solutions

I like Quiet Ride Solutions products. I have used them in multiple builds, they are a little pricey at first glance, but they same a lot of time in the long run... great products, and their stuff fits. And they make a great firewall heat shield.
http://www.quietride.com
 

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A great product to use is Lizard Skin. They offer a heat barrier & a sound barrier which can be used separate or together. It's applied by spraying it on which allows it to get into nooks & crannies that can't be reached with roll-on mats. Check out this short video from Eastwood.

Mike
 

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We use a layer of Hush Mat and over the top of it use the 1/2 inch foam mat from hush mat. It looks and works very good. I've seen a couple and did my car like this and if/when I build another this is what i'll use again. I put hush mat throughout my interior, even in the roof. If I do another I'll probably even put a 1/4 inch layer of volara foam over the hush mat in the roof. With the gen IV Vintage air it keeps everything nice and cool even on very hot days.

https://www.ebay.com/p/HushMat-1050...quare-Feet/7021725529?iid=323367128487&chn=ps

https://www.speedwaymotors.com/Hush...-2-In-Sound-Thermal-Insulating-Kit,34508.html
 
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