I am installing new carpet in my 68 convt. It has the jute padding in places. But what  I need is something to put down first that helps keep the heat out.  I have tried several  so called heat kits  under the old carpet but it hasn't helped much. The floor gets pretty hot, and I do have a heat shield over the header pipes and an insulation barrier on the underside of the floor.   What do I need to put down under the carpet for my heat problems. Maybe NASA Space Shuttle Heat Shield Tiles.      

______________

I'm interested in what experiences people have had with various products as well

______________

I wanted a Corvette my whole life, but I never dreamed of all the wonderful people I would meet because of it!

i had this product called dyna mat installed on my car

Did you like the Dyna Mat. Also I don't think the 81 gets as hot as the early C3.

______________

I used a Heat Barrier/Underlayment kit from Volunteer Vette. Some kind of ceramic cloth with a foil backing.....$150.00. I also added some dense foil backed insulation that I picked up at home depot behind the seats and under the seats in places that it didn't effect the fit of the carpet. I just used spray adhesive and put it over the top of the kit. I also made sure I didn't have any little holes in the firewall and all my grommets were in place like around speedo and tack cables. It's pretty cool in there. No complaints from the wife about hot feet.

The 1/8" thick high density kits really make a difference.  Dyna-Mat is about the best, but you then need to cut and fit.  The old style thicker kits make the carpet look funny.

Larry

I just finished working on my 74 for hot feet! Mine would get that hot after about an hour that I couldnt stand to drive in. I purchased a product called Lizard Skin from Summit Racing. I removed the interior and sprayed it on with a special gun they sell. I dont think a regular gun would work. Anyway I made my first drive to Carlisle Sunday morning since completing this and there was no heat at all. I actually had to turn the heat on, on the way there because it was just in the mid 50's when i left. I am very happy with this. I also finished off the job by putting a layer of the home depot bubble foil wrap on top between the coating and carpet. It works great. If you decide to go that way let me know and you can borrow the gun I bought. However I will be spraying the 72 sometime in September as well.
Rodney


______________

Thanks, I will look up the lizzard skin. Thanks for the offer. I think I only have a two to three week window to get something, while the interior is disassembled. I have used the bubble wrap with foil before and it did not work for me.  Also the foil wrapped jute which didn't help all that much. I am talking TEXAS HEAT.  100 degress plus and that isn't on the asphalt.  

______________

i really like the dyna mat it worked for me

You have to cut your own patterns with Dyna Mat.  It  would be nice to have it already formed and cut to fit in all the areas.

______________

[QUOTE=rlu1968] You have to cut your own patterns with Dyna Mat.  It  would be nice to have it already formed and cut to fit in all the areas.[/QUOTE]

I have installed this before and the cut to fit method is easy if you use the carpet as a template. This holds true any choice of carpet / heat barrier installation.

I also use 3M spray adhesive on each surface. spray each item .... wait until tacky.... put in place.... peel back..... wait some more.... press into place.

Take your time!!! Your working in a small uncomfortable area but this isn't a place to hurry to get er done.

A hurried job will look just like a hurried job!

                                                                      Tux...

______________

Tuxblacray: She's Back In Black! Check out my pics @ My Link


(Click on image to see a bigger version)

They do have a already cut form but not for a corvette. However it is a good ideal to use the new carpet as a template.

______________

I did the Dyna Mat throughout the car a few years ago. Up the firewall all the way back to the rear panel. I just bought a kit that was all sheets. It wasn't too bad cutting and fitting. Just have a good small hand roller to smooth it out. It did make a big difference in lowering the heat and cutting down on some of the road noise. One of these days I need to line the door shell with the stuff. I'm not looking forward to that. lol.

______________

GEN III 5.7L "LS6" Engine swap
TKO500 5 spd.

Right now my 68 is all apart and I have a chance to do anything.  So I might consider the door shell too. I had ordered some heat barrier out of Corvette America, but since then I have heard so much on the Dyna Mat that I think I will order from them.  I wonder if I could overlay both of these, without causing problems with the carpet fit.

______________

i just had my 81 done and the guy who installed it said it came in a kit allready precut for my car and i ordered the kit for my doors and my tops also i have fiberglass tops on my car and the difference was worth it and the road noise also

dyna mat dropped the internal temp 25 degrees in my car

______________

Ken - C3VR Lifetime Member #79

I ordered the  dyna mat and dyna pad so I am going to try out both. 

______________

http://www.performancemotorsportsnews.com/index.php?featureID=22&vendorID=914

Kool Mat is crap, it is very thin and falls apart. I have found that dyna mat is thicker and is easy to install and hush mat is the same as Kool mat. 

______________

Not a fair comparison; hushmat is for sound insulation; not heat.

Anyone has experience with products other that DynaMat or lizard skin (sprayed stuff is a little too permanent for me...) for heat?  Roofing material from home depot perhaps?  I don't feel like paying for the "Dyna" name... and I can cut my own pieces; looks like everything "pre-cut" is twice the price.

I'm really looking for an affordable heat insulation solution.  I'm assuming a molded carpet that has a jute will be enought for the sound.  Our C3's are not all sheet metal; so they don't produce as much vibration noise to begin with (I think...).

Steph.

I am getting ready to install hushmat.Who told you it wasn't for heat? All of the research i did gave it good reviews.

Hushmat founder himself on youtube.

In this one, he really focus on sound deadening:
http://www.youtube.com/watch?v=MYJsJzBz2iM

In this later one, he's more specific about cooling as well:
http://www.youtube.com/watch?v=nqb3wdQXLLw

And of course... the name of the product; "hush"; kind of a clue.

My previous reply came out wrong.  I re-read the article and a few comparisons on the web.  Hushmat seems to also provide great cooling properties; but you have to admit they first developped the product for sound deadening.  Cooling (by choosing the right material of their sound deadener) was just gravy for them.  They were targetting sound.

I found that a lot of people tackle sound & heat with 2 products.  The article that was pointed out was supposed to be about heat only, but they seemed (to me) to have mixed both type of products; which is why I called it unfair.  Turns out my own critic was unfair. Apologies!

In one of his videos; he shows that it sticks to anything; even grease/oil covered surface.  I`m sure you did your research, but regardless of what he says about how well it sticks, you should try to prep the surface as good as you can.

I`m curious as how far up you plan on installing hushmat into the firewall and the top front.  Let us know how it goes.

Steph.

Anyone try Rumble Mat?  Web site says it's thicker than Hushmat, and cheaper, was reviewed in Auto restorer.  Website:  rumblemat.com.  I'm thinking about it! 

______________

Mario

Trust Me!!  The 81 gets hot!!  I have not put any heat shield on mine yet but I am reading all this info with interest!! Dan

______________
          



(click to see a larger image)

I used Dyna mat for sound and Dyna pad for heat. Both work great for my 68. Dynapad was thick so I only used it at the firewall and feet area of the driver and passenger side.

______________

If you put hush mat in your car for cooling you will be pulling it out within a month - it sucks at that.  I installed dyna pad for heat and it dropped my interior from an uncomfortable level to very comfortable - save your money buy what works pal!

______________

Ken - C3VR Lifetime Member #79

I am considering using a deadener from Eastwood for floor & doors.

______________

DynaMat has precut corvette kits now.  I put it in the 69.  Easy to install and make s a difference.  I like their products.  We install alot of them in the Home electronics business, and have yet to be disappointed.

______________