Having been inspired by John, Matt and others interior restorations, I am moving to upgrade mine as well. One of the first issues that I noticed when looking under the Mondial's carpet was that there was no soundproofing, and even large areas of one layer metal floor. Noise in the Mondial is primarily the engine, but there is also a large component of road/tire noise. When installing an amp under the seat, I did put down some of that sticky deadening pad on the floor, but could not tell a difference. Any experience here? A well-respeted carpet guy here is recommending a standard but thinner jute pad with an aluminum backing as a sound deadener. Again, looking for any experience anyone may have. I would like to tone down the road noise, and I know the glorious engine note will always be there regardless of what I do I did not like the original quality or type of carpet in the car, and have opted to move up to a top quality classic Mercedes square weave for toughness, durability, usability, texture and 'European-ness'. On an artsy note, it also gives a pleasing and visible 'texture' to the flooring that the originals do not have. Only the very best for the bambino. I also am not crazy about plastic, and in another thread I am looking to replace the plastic switch fascia with a brushed aluminum like the shift gate or am looking at a piece of burled polished maple or cherry wood. The somewhat flimsy plastic center A/C vent has already been replaced by a beautiful billet anodized aluminum piece with better flow and aiming. Would like to hear anyone's experience with carpet/floor sound deadeners! Many thanks rt Image Unavailable, Please Login Image Unavailable, Please Login
The Benz like carpet could come out nice. I would like to see a photo after your completed. I performed a carpet swap some time ago in my Mondial t. To do it right it takes some time, but it transforms the car. I find it hard to deal with how poorly the original Italian carpet can look after so few years. Most any of the newer carpet versions are much better in all ways than the originals. I did not change the backing/sound deadener from stock. But my car has always seemed as quiet as a church in the cabin. You will be thrilled with the upgrade. Here is an example: Image Unavailable, Please Login
Don't be too inspired by me, I haven't gotten any of it back together yet! Good luck and let me know if I can help in any way!!
Russ, do you have a bigger pic and details of the air vent? Details man, we need details! Thanks, Dave
Sure! Here's an entire thread with photos! http://www.thebestemployee.com/forum/showthread.php?t=78210&highlight=st+Corsa Michael - your interior is just amazinging luxurious and rich - very tasteful and elegant selection of color!!!
Russ, You are a true gentleman, thanks for the complement. I was sure that I had shown you that photo in the past, but I dig your reaction no matter if I did or not! I cant wait to see how your interior turns out. Merry x-mas.
Russ, you may want to check out this product: Lizard Skin Ceramic Insulation http://www.coollizard.com/default.html This is getting great reviews. It's basically spray-on ceramic-covered micro air bubbles, and it acts as a sound and heat insulator. Haven't used it myself, but I plan to.
Michael B > Where did you source the carpet set for your Mondial T? I have a T Coupe as well and World Upholstery & GAHH tell me they don't have a set for the T Coupe.. only the Cab.
I checked with World as well... They are great, but needed my carpets for patterns. So... I pulled the carpet set out, and got ready to send it to them. However, a Maserati specialist local to me heard I was going to do so, then stepped in & allowed me to commision him to make the set (with custom black binding). I took him up on the idea.
carpet is out, and got to see the raw materials today. The aluminum backed thin jute pad wll be glued down, so hope to decrease some road noise. The carpet looks darker in person. The guy cutting the carpet said it was a very high grade, and a bit difficult to work with unlike the original which is thin and lighter. Will look at doing the trunk as well, but am thinking there may be a way to simplify it back there. More in a couple of days Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login
DynaMat is a also a really good sound deadener. Lots of guys with big car stereo's lay that stuff inside the doors and on the floors to keep outside noise comming in and inside noise going out. It really helps with vibration aswell. The stuff you have chosen is also very good, but you may find it to be a bit to thick in somplaces, once the carpet is over top and you have reinstall some interior trim. I think your car is gonna look great!! Great idea usung the Benz carpet..never would I have thought of that!
Ideally, to reduce noise, you want to bond the insulator to the metal. Normally this is done simply by gluing the insulator to the sheet metal.
For sound deadening check out these guys- they claim to be better than Dynamat at 1/2 the price. I've never used them but I might soon. http://www.quietcoat.com/?google2 Steve
Hi Dave, I installed the Corsa vent in Rachel. Works great!! I'll show it to you when I see you guys at LaCanada. Hi Carina Cheers, Hank
Russ, Jute backing doesn't do anything for sound attenuation. It is an underlayment for carpet and nothing more. In general, you want a butyl based damper that sticks to the sheemetal to lower its resonant frequency. After that is done, you use a noise barrier product overlayment that "floats", it is not glued to the sticky stuff you just laid down. So you dampen first, then apply a barrier second like in this article. http://www.hometheaterhifi.com/volume_10_2/car-audio-sound-deadening-6-2003.html I also suggest you read this one too: http://www.sounddeadenershowdown.com/ Sound deadening forums here: http://www.secondskinaudio.com/forums/ And some other links: http://www.raamaudio.com/ http://www.cascadeaudio.com/products.html BTW, Dynamat is way overpriced, you can get the regular dynamat at http://www.mcmaster.com/ a hell of alot cheaper. It is exactly the same without the Dynamat name on it.
Thanks everyone so much for the guidance. Have located some 'non-tar smelling' sound deadening sticky thick black mat kit (forget the name now) at a local high end pro auto sound shop that will bond to the metal. Seems 2 std 'door kits' will just about cover the metal floors on both sides. Will look at doing the doors as well after the carpet goes in. Thanks again
You can also see the ST Corsa vent as well as a rare 70-80s thick rimmed Momo 'Cavallino' steering wheel installed in the interior pictures in this thread. Both are quite nice.
Have decided to do the trunk as well so everything matches. They were able to use the original heelpads from the original carpet so that looks very good. They were doing the door and tunnel covers while I was doing the photos, so good progress. I have been thinking, and it probably will not be all that much quieter, even with the soundproofing until I do the doors, and even then not much. Oh well. Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login
Dynamat will not block the road noise. I just filled my 80 Scirocco with it top to bottom. The only thing it did was weigh down the car (a lot). It is still as loud as ever inside. I am searching for something else. Save your money if this is what you want to use the stuff for. I am sure it is great for sound systems, behind speakers, etc. to enhance music but it is just not worth a crap to block out road noise.
Well, here it is. For those of you new to the thread, this is a Mondial coupe re-carpeted with a higher quality and tougher German square weave as found on classic Mercedes and Porsches. It gives a very European texture and ambiance to me and wears a bit better to boot. The trunk turned out nice, being as it was serendipitously covered with 'leftovers'. I was thinking how nice an aluminum footrest would look - it never ends... but for my last and perhaps greatest challenge, I am going to start thinking hard to attack and upgrade the Mondial electrical system... Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login
I got this from another forum. Some more sound deadening tech for archiving: This same conversation or most of the questions and comments in this thread has been in other threads on http://forums.caraudio.com/vb/index.php and other places. Go on Car audio.com and do a search on "Tar" also do the "peel and seal", "Dynamat", "Asphalt", "Butyl" search...very interesting. Some people who claim to be installers recommend and like using "peel and seal" some don't but people are using it and discussing it...ALOT! Just like this thread. Also people complain about the tar or asphalt smell of Fatmat as well as many other popular sound deadening materials including the "Original" Dynamat which is also asphalt based not Butyl like the "Extreme". This tells me they are almost all asphalt based with the exception of the butyl ones and therefore probably pretty close to the same in sound deadening based on the thickness/density. A concensus seems to be to use a spray on for the roof area. From what I've read on the forums the following are ASPHALT: Original Dynamat, Fatmat, Brownbread, Edead v1, and probably a few others. BUTYL: Dynamat Extreme, Second Skin Damplifier. Also go to this link: http://forums.caraudio.com/vb/showt...highlight=butyl and see the post by Acousticguitar posting up another original post by SIN that contains the following info: ------------------------------------------------------------------- Originally Posted by SiN I have been in the game for a while now, working mostly with laminate adhesives for the sealant and gasket industry. Which on occasion crosses over in to he damper industry OEM and aftermarket. Here is what my findings include: R-blox, Rammat, edead, and b-quiet ultra (formerly brown bread) are all the same product from the same company in different thicknesses. Fatmat, b-quiet extreme come out of the same plant too, but are a different mixture adhesives. Accumat by Scoches comes from another company in California that gets their products from overseas. Peal and seal is roofing product not usually recommended for cars but does the job for most people. Dynamat laminates their materials in house as does, hushmat. Mostly OEM for the big 3 and overseas. Madmat buys from Hushmat and private labels it. Second Skin buys from overseas and from a company called OEM Dampers for private label. Same with stinger, which also buys from Quiet solutions and OEM Dampers OEM Dampers does a lot of private label material but only advertises for their line of liquids. Mostly military OEM. If you want and are a big enough customer you can buy from OEM Dampers line of bituminous and butyl mats, otherwise its all paint on resins like Select Products blue goo and Dead Skin for Fosgate and Stealthkote. But they do mat at their overseas facilities. Cascade also makes some of their own products but also imports. I don't know about dead beat or magic mat though. The best out of those are butyl mats. Bituminous mats are cheap but have high VOC's due to the asphlat fillers and can be toxic and are always temperature dependant. hushmat dynamat extreme secondskin (though it sounds bit like a touchy subject) cascade that would be my picks
