I am thinking about doing Dynamat before the summer. I am not concerned with sound deadening. I want it to reduce the heat in the interior. In the summer the headers make the front floor boards really heat up. Can anyone opine on its effectiveness specifically for heat reduction?

 

Can't give an opinion but here's a little info from Dynamats website under FAQ's. Question #7.

http://www.dynamat.com/faqs_faqs.html#text3089anc

 

I used the DynaMat Extreme on my floors and trans tunnel.

It cut the noise and heat by a huge amount.

Well worth the time and money.

 

Just saw something about Rhino lining - cuts heat by 30% and that was a spray, 5 mils thick, on the exterior floor.
Imagine DynaMat would be good by at least 60%

 

Go to Power Block TV. On Trucks they sprayed Lizard Skin on the bottom of a ranger project for heat and sound. This seams like another option.

 

as you I was not real concerned about sound especially on a convertible but believe it or not it made a huge difference, less rumble, road noise from underneath. As for heat same thing, before I could burn my hand touching tunnel now its much cooler.

 

Steve, what product(s) did you use?

 

Another place advertised on these forums is b-quiet.com, in Canada. For $5-10 bucks, they send you a sample card of their products, and very reasonably priced. I got this, and looks like pretty good products.

 

I used a combo of dynamat extreme and dynaliner on top of that. I feel like it makes a big difference. However, with the current cost of that dyna-stuff 2x the already-too-high price of what it was in 2008, i would recommend their lower-cost competitors. Just stay away from any stuff with asphalt, unless you like the smell...

 

Last summer I installed the Fatmat extreme in mine. I think it's like 80 mills thick. 1/2 the price of the Dynomat and I am very happy with it for sound and heat. No odor.

 

If you are concerned about weight, I just removed the original and put my carpet over the Fatmat. About the same.

 

Dynamat

 

try the peel and stick roofing underlayment available at Lowes, tar on one side andfoil on the other , peel off the protective paper and stick it down. all I have heard is great results and 108 sq. ft. is under $70. i.e. one friends truck ('50) is quieter at 70mph now than at 40 before. Also available in varies sizes for flashing such as 6 8 and 12 inch rolls and 36 inch wide, cuts easily with a utility knife, no complaints about tar small etc; check it out. the typefor doing around house windows and doors may be a few mils thinner than the roof type, this is used in new home construction as it eliminates nail holes and stays stuck when the shingles are blown off as happens here in Fla. storms, helping to reduce water damage, not sure but I think it may be required by code here now. Dave

 

send your headers to jet hot...

 

If I went thru the work of pulling them out I'd go back to manifolds. I am not crazy about headers for a car like mine.