Is Dynomat worth it?

[95silver]

I have always wanted to put Dynamat or other similar sound deadning material in the doors of my car. Has anyone done this and does it make a noticeable difference in interior noise reduction?

[12secondv6]

Well this is my experience:
My 97 firebird has the whole trunk area, spare tire area and all the way up to where the rear seats used to be sprayed with that sound deadening stuff in a can. I put a couple of coats, maybe 2 or 3 and yes there was a drop in road noise and general sound.
My 72 chevelle has the entire passenger compartment (floor, rear seat, firewall and part of the rear area where the windows go in) lined with the super sound deadening material from summit racing. They have 2 levels, one is 25 bucks and the other is 30? I think.
It really did make a difference in road noise becoming less obvious, exhaust was quieter inside car, and prevented a bit of unwanted heat from engine bay entering the car.
My bro's 94 jeep wrangler has most of the passenger compartment done. I did the firewall, floor completely and extended into the trunk area.
He was complaining about heat coming from the floor and it was kinda noisy. So again I used the same stuff that I used in my chevelle. I did definately notice the heat reduction especially. Noise level did drop even though it is either a hard top, soft top or no top jeep.

Basically I've had good experience with all of them.
The spray can is messy as all hell and not worth it for the pain to do.
I want to keep the bird as light as possible so I used the spray stuff.
Honestly though there really isn't that much weight to the sound deadening material.
All you need is a pair of scossors and a tape measure and a bit of time.
Really easy to do.
Definatly a noticable improvement.
3 success stories with 3 completely different vehicles [img]graemlins/thumbsup.gif[/img] [img]graemlins/thumbsup.gif[/img]

[Brian Dieckman]

He was asking about the doors.

This is difficult to answer, because I've never seen it done RIGHT.

The right way would be to use dynamat (or similar material, not the spray) on the indide of the door skin. (the part that is on the outside of the car) That means you would have to somehow get past the window and it's garb and all the wiring and supports for the inside of the door.

In addition to this, you should also spray the inner door parts (the part that faces the door panel, where all the stuff mounts) That would kill any leftover vibration, and vibration caused by your speakers.

If you can do this effectively you will definitely reduce the ammount of noise inside the car. That is wind and road noise. If you want to kill alot MORE... go for the floorboards from the backseat floor to the firewall. That does really well.

The reason I say I've never seen it done correctly is because most people just tape the window garb and spray the door, leaving "tracks" on the inside where the inner door parts are.

In any case, it's alot of work, and the stuff is expensive, but it will make one heck of a difference.

-Brian