Pros and Cons of Hood Sound Deadening Material
- Thread starter 89MkIII
- Start date
It's also a thermal barrier. Your hood steel and paint will get hotter with it removed. No idea by how much though =/
That whole thing with all the clips weighs maybe a pound. My was rotted away so I removed it. You could just get a generic aluminized heat sheild barrier from a racer catalog like Summit and replace it with that, but for weight savings alone it's not worth the fiberglass shavings in your arm for 3 days.
fuck removing it... imma get a new one! it protects your hood from heat and weighs like what... 5 pounds MAX?
BTW i also just dynamatted my doors and floor so yea... I like a nice ride.
BTW i also just dynamatted my doors and floor so yea... I like a nice ride.
Dynamat makes an underhood specific product as well that looks pretty cool, however I have never seen it in person.
http://www.dynamat.com - go to Automotive, skip intro, hoodliner on left
12 square feet only weighs 2.21 pounds!
Just beware where you buy Dynamat, that stuff has so much margin. The only cost effective way to buy it is in bulk packs which retail for ~$250. My store used to buy those things for like 50 bucks. A friend in the industry can be a real help here.
http://www.dynamat.com - go to Automotive, skip intro, hoodliner on left
12 square feet only weighs 2.21 pounds!
Just beware where you buy Dynamat, that stuff has so much margin. The only cost effective way to buy it is in bulk packs which retail for ~$250. My store used to buy those things for like 50 bucks. A friend in the industry can be a real help here.
CTsupra
Supramania Contributor
i was thinking of dynamating every place in the car where the stock sound deadening is. after you remove it of course.
Be sure to use Dynamat Extreme if you do. The normal stuff is a pain and comes loose with heat and vibration.
that's actually not sound deadening, it's a fire prevention device. it's pretty standard on turboharged cars, my mazdaspeed protege and wrx both had it. basically if something catches on fire it melts the clips, the padding falls down, and melts over/smothers the fire (ideally). it's not a perfect system, but i do know several people who's cars were saved by this thing. pretty cool.
yea... helps to know someone in the industry.... i get it for WAY cheap... but its so fuckin worth it... my doors sound like bank vaults when i close them now.. no rattles nothin............
CTsupra
Supramania Contributor
I bought a 100sq. ft. of B-Quiet Extreme absorber from www.B-Quiet.com. It will cover the entire car from the roof to the floor in one layer. I'm also thinking of getting the B-Quiet V-Comp Barrier to add in some spots to ensure quietness, but unsure if it is worth the added weight. It's about 1lb per sq. ft. I'd be looking at getting about 30 sq.ft. of it, so an extra 30lb...I dunno if it is worth it. This site has very good priced though.
Ckanderson, how does you car sound with tje dynomat. Did you notice a big difference? I want this barrier stuff because the absorber only reduce the rattle of the panels by changing it into a low thermal energy. The barrier is about 1/2" thick and actually blocks most of the airborn sound wave throughout the car. If I were to install it it would be on the back side of all the platstic interior panel pieces.
well i havent DRIVEN it with the sound deadener... BUT even just closing the doors.. you can tell a HUGE difference... much more solid sounding.. i have never used the "absorber stuff but i can see it working quite well..
for 30 extra pounds.. hell even 100 extra pounds.. i'd do it.. its great to have a quiet car that you can cruise around it.. i like my exhaust to be loud and fuel pumps dont bother me.. but when im inside.. i like comfort.. which is what the supra was semi designed for (being a GT car)
for 30 extra pounds.. hell even 100 extra pounds.. i'd do it.. its great to have a quiet car that you can cruise around it.. i like my exhaust to be loud and fuel pumps dont bother me.. but when im inside.. i like comfort.. which is what the supra was semi designed for (being a GT car)
My mistake...I meant it was a dampender, not an absorber. Dynomate is a dampener along with the stuff that I bought. A dampener uses mass loading to lower panel resonance and absorb structural vibrations, converting them into low level heat. Most commonly used throughout a vehicle to control structural related noises. They can also be used in conjunction with a composite to reduce road/engine/exhaust noise.
A barrier blocks airborne noise from passing through. The denser the barrier, the more effective it is, which makes lead an excellent choice for a barrier.
I plan on having a nice tight, new car, factory feeling when my interior is finsihes. If you say the dynomate made a huge difference when closing the door, then I can't wait to install this stuff.
A barrier blocks airborne noise from passing through. The denser the barrier, the more effective it is, which makes lead an excellent choice for a barrier.
I plan on having a nice tight, new car, factory feeling when my interior is finsihes. If you say the dynomate made a huge difference when closing the door, then I can't wait to install this stuff.
M
mattonedime
Guest
btw- you should see that dynomat hood liner burn...leave the stock one or replace it with a new stock one. I had a car that was not so lucky...
IJ. said:Charlie got it in one!
and yet... no one seemed to have paid attention to it... guess they'll be some toasty supras soon.