New interior sound pad

[richde]

I hear this being mentioned from time to time, but can't seem to find it anywhere.

Referring to the 50lb slab of rubber that sits underneath the rear deck.

Is the solution to just get Dynamat instead? If so, how much will cover the rear deck and underneath the kickpanels, 12sq/ft?

[DRACO A5OG]

Take care, I installed the Dynamat in place of the sound pad in the engine compartment.

I like the sound reduction but the heat from the engine will melt the rubber adhesive portion and drip on to your trans, heat exchangers and other components.

No harm observed just a mess underneath. Will be cleaning it up soon.

I may have installed the wrong type but you defnitely need the heat resistant type.

[richde]

Originally Posted by DRACO A5OG

Take care, I installed the Dynamat in place of the sound pad in the engine compartment.

I like the sound reduction but the heat from the engine will melt the rubber adhesive portion and drip on to your trans, heat exchangers and other components.

No harm observed just a mess underneath. Will be cleaning it up soon.

I may have installed the wrong type but you defnitely need the heat resistant type.

Oh no, I mean on the interior. I've already got a new engine bay sound pad, but it's still pretty loud on the inside, and doesn't sound half as good as it does from the outside.

[Dixie]

Appbiz makes a light weight interior pad. It's on my to-do list. They just started making it available. A search will turn up info about it.

[richde]

Originally Posted by Capt. Carrera

Appbiz makes a light weight interior pad. It's on my to-do list. They just started making it available. A search will turn up info about it.

I heard that too, months ago. But it's not on their, or this, site. They do have the engine bay pad, and the only photos I saw were of the engine bay pad. There is no interior sound pad listed on Pelican that I could find.

The Dynamat would only be ~$90 from Crutchfield, and not that labor intensive.

I should figure out what meds I need: Lightweight Interior firewall sound/heat pad

[Gogar]

Dynamat is great, but it's mainly for reducing "vibrationary" noise; noise from metal panels rattling, and 'looseness' sounds.

I did install "Brown Bread" in one of my cars, which is dynamat without the premium price.

http://www.b-quiet.com/brownbread.html

Above that, and behind the rear deck panel I also put a few sheets of L-COMP lead composite barrier, and my car is -really- quiet unless you open the window!

http://www.b-quiet.com/lcomp.html

If weight savings are a concern, THIS IS NOT what you want. It's heavy.

Oh wait, it's not even available anymore. They also have this:

http://www.b-quiet.com/vcomp.html

No lead, just vinyl. These kind of thicker barriers will go a long way to reduce general noise that the dynamat kind of things can't really help with.

[Dixie]

heard that too, months ago. But it's not on their, or this, site.

You could e-mail and ask. Their contact page is http://www.appbiz.com/contact_us.php?osCsid=9c04fc90d519a87c5e56854ae506 e41d

[MikeDL]

I bought the Appbiz interior pad via pelican. You just need to talk with a Pelican agent and give them the Appbiz part number from the other thread.

It fits well, but since I haven't started the engine I don't know how well it works.

[86911cab]

I stripped the interior out of my 86 cab. and coated it with "Quiet car". It took about 2 gallons, not counting the doors. I was quite pleased with it and it was as easy as brushing on extra thick paint. I had no problems and it dried to a tough finish that can be painted.

www.quietsolutions.com

click on Applications / transportation / pass vehicles

[appbiz]

Bob at APPBIZ here

Per numerous customer requests we have begun production of a lightweight interior firewall sound pad. This unit replaces the heavy asphalt/felt unit that lays under the parcel shelf area and hangs behind the rear seat backs. The OEM one that we used as a pattern weighs in at well over 10 lbs, our new lightweight replacement hits the scale at 2lbs. and should do a pretty efective job of knocking down sound and a terrific job reducing heat. The main pad is die cut from our Double foil reinforced felt and and second piece of heavier felt is die cut and attached. Just like the factory, but using more modern materials


Back (Firewall side)


Front (Cabin/Carpet side)

As always we welcome your questions and comments. Our Sugested retail price on this is $89

Tell your Pelican parts rep that this product comes from APPBIZ (Applied Business Concepts) and our internal part number ISP-L

It has perforations to remove small areas of material on the sides for use in Targas. So it is applicable to 911/912s from 1965 to 1989 Coupe or Targa models

We are also using the same dies to cut the heavied OEM style replacement. Pics of that pad will be added to this post shortly.

Thank you all for your past support and patronage!
Bob

[Carrerax]

Bob, I put a complete new floorpan in my 1970 911. Do you have the factory style pieces for the floorpans? Thanks, Mark

[appbiz]

Mark
Do not glue anything down to your new floorpan! That is the reason you needed to replace them. The stuff the factory used would allow water to seep under and not dry out quickly. This caused the body rot you had to deal with. Later models had Galvanized floors and it was less of an issue. Most P cars leak like crazy in the rain and you want to be able to lift the carpet out and dry the area if you are driving in wet conditions or if the car is stored outside during rain/snow.

[Carrerax]

Thanks Bob. That def makes sense. I do read about everyone putting dynamat etc down for noise etc. What is the best thing to do on the old non galvanized floors. I am going to have a good epoxy primer on it but it will still need to be covered for noise insulation. What is your suggestion? Thanks, Mark

[Superman]

Everybody's 911 personality is different. I don't expect mine to be quiet. I expect it to be tossable, and that means light. Nevertheless, I would consider replacing some of the sound mat material that somehow fell off my car (wink). I'd be interested in the weights of the pads, Bob.

The OEM interior padding goes clear under the seats and to the floor! I think it weighs as much as my mother-in-law.

[Carrerax]

I am not using mine as a track etc but I still want it to be fun. That said, I also want my wife to enjoy and use it therefore I would like it to be close to stock for the sound insulation but if there is a better solution with the same results and less weight, that is what I will want. Im just concerned about gluing it to the floors now.

[RWebb]

he posted 2 lbs. in the text

Bob -- do you have any data on noise or thermal transfer for these?

(or di I ask you that before...?)

[kiwiokie]

Bob, will this be made available through your ebay store?

[Porsche Head]

Hi Bob,

I have your carpet kit waiting to go in and B-Quiet ultimate (tar like stuff) already installed.

How long before avail?

Will it be as effective in transmission noise as the B-Quiet, I am concerned about weight but once it's all glued up I don't want to be looking for another solution?

Thanks,
Cliff

B-Quiet V-Comp Transmission Loss, in dB:
15 @ 125Hz
17 @ 250Hz
21 @ 500Hz
28 @ 1KHz
34 @ 2KHz
37 @ 4KHz
STC = 27

Temperature Range:
-40C to +121C (-40F to +250F)

[ShakinJoe]

The APPBIZ pad is the way to go!! It weighs only 2.45 lbs compared to the stock pad at 11.35 lbs for a weight savings of 8.90 lbs. It saves it in the right place as well....high and in the rear. This is a cheap way to "pick up" 1 HP.

[Paulporsche]

Shakin Joe,

Have you noticed any difference in cabin noise level?