[Eke]

Does anyone know how much Dynamat Xtreme will I need to cover my floor pans from the rear shelf all the way under the dash to where it meets together. I've already done the headliner, doors, inside the quarter panels, and inside the kick panels.
Thanks

[Camaro1969]

Originally Posted by Eke

Does anyone know how much Dynamat Xtreme will I need to cover my floor pans from the rear shelf all the way under the dash to where it meets together. I've already done the headliner, doors, inside the quarter panels, and inside the kick panels.
Thanks

I used the bulk pack, the one that has chip foose on the cover, covered my pans, but not my package shelf tray..

[Musclerodz]

Originally Posted by Eke

Does anyone know how much Dynamat Xtreme will I need to cover my floor pans from the rear shelf all the way under the dash to where it meets together. I've already done the headliner, doors, inside the quarter panels, and inside the kick panels.
Thanks

2 boxes of the 36 sq ft bulk pack

[Blown budget]

good info. I thought one of the 36 sq ft boxes was enough. I was about to buy some myself.

[Eke]

Thanks. Anybody know who has the best price right now?

[69RS/Z28]

I'v purchased it from Amazon... Great price, and it comes so fast it will make your head spin....

[Blown budget]

EKE, I was just on a thread a day or two ago and they were talking that ebAY had the best pricing going that they have seen right now. Unless a sponsor wants to step in and make us a deal that a few of us will jump on. lol hint, hint...

BTY, I was looking at your camaro in your PB, wow, you made a turd shine like a rose. beautiful car.

[Blown budget]

Tony's Z is great looking too.

[Steptoe]

The pic above... the strutts between the pacel tray and floor
Why do those? it seems piontless??
And
Why not cut a new cardboard divider like the factory, dyna that and put in behind the seat?

[Blown budget]

Originally Posted by Steptoe

The pic above... the strutts between the pacel tray and floor
Why do those? it seems piontless??
And
Why not cut a new cardboard divider like the factory, dyna that and put in behind the seat?

was thinking the same thing. with the seat there that should plenty of sound deadener... besides, i think DMing the cardboard would make more since than doing the bars behind the cardboard and then adding the cardboard over it and Dming that too.
I didn't realize that this stuff weighs 24 lbs per box!!! dang, that will add
up quick.

[Steptoe]

I have been swaping out/replacing the LG tank in the boot (Trunk) also re did the spring bushes a few months ago... never put the fuel tank back.
No fuel tank does create quite a bit of noise....
When replacing the LPG tank, I pulled the seat back out...again it did make a bit more noise....When putting back, I spot glued some black fiber niose stuff onto my orginal cardboard liner....
It did make a significant difference....
At the time I was going to drop some wal cavity fiber glass noise deadner left over from building onto the house inside the back seat back....but it was messed up because the hedgehogs had made a nest in it...

[HwyStarJoe]

This thin stick-on sound 'dampener' we all use, like Dynamat and others, is designed to dampen the noise from the effects of vibrating panels.
Not block sound.

As we drive there's the exhaust sound resonating the entire bottom of the car... road noise vibrating the body (and anything else not solidly attached or with a lot of surface area), a stereo causing more vibrations from inside the car, etc.

Adding Dynamat or whatever doesn't really block sound per se.... it "dampens" the vibrating effects of all the different parts of the car moving. Granted the 2mm stuff DOES block a little sound, and there are "first layer" products that are much thicker that are designed to block sound, but alone it really is just a dampener.

If you're just using the 1.5mm or 2mm stick-on sheets, to really block outside noise you need to add the manufacturers products that are designed to go OVER the stick-on dampeners... the second layer. The fiber or foam matting, or whatever they offer.

The reason I bring this up is because I was also trying to decide where or if to put dampener between the back seat and the trunk. I suppose the package tray supports can vibrate causing some resonant noise. The package tray itself most definitely does. The cardboard divider that goes between the seat and the trunk does have jute covering it which blocks some sound, and if it's mounted up against the supports will dampen them from vibrating. I don't think you'd be wasting your time and $$ by covering the support bracing with dampener though. There's not much surface area to them. Put your scraps on them instead of wrapping them like Christmas presents. You're just dampening the vibrations....any stick-on dampener on them will lessen the resonating that might occur.

In theory, this stick-on 2mm dampener we use should be just as effective if you put two long strips down the length of your roof panel for example, as opposed to covering the entire roof area. Same goes for the doors lets say.... put two 6" strips on the outside skin and in theory this is supposed to dampen vibration noise as much as covering the entire door panel.

Also, some people prefer to attach the dampener to the inside (outside skin) of their doors, and some prefer the door panel surface. Some may do both I guess.
Both these surfaces vibrate like crazy and cause that ugly 'tin can' sound. I'm sure the door panel, along with the water shield if it's installed first, dampen the interior surface of the door. Personally I'd think that putting the dampener on the outside skin of the door would have a much better "sound deadening" effect though.

These are my observations from what I've learned through a boat load of research, and from using it on my own car. While installing it in my trunk, if I knocked on the floor it rang like a bell. Once I got a couple of square feet of it down and then again knocked on the floor, the 'ring' was already gone! That's what this stuff is designed to do.
I guess it works.

[Eke]

Originally Posted by Blown budget

BTY, I was looking at your camaro in your PB, wow, you made a turd shine like a rose. beautiful car.

Thanks. I'll just be glad to get it back together and running. It's been a LONG and EXPENSIVE process.

Thanks for all the feedback guys.

[larryh56]

I agree with HwyStarJoe and would add a couple of things. Check out raamaudio.com for some good info. Mat can be put on the inside of the outer skin of the doors behind the speakers 2-3 layers thick to greatly improve the sound. I have it on both the outer and inner door panel. Sticking insulation like closed sell foam on the top of the mat will insulate from sound and temperature extremes.

[Steptoe]

My orginal doors still have the orginal panel stuck to the inside of the doors