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| noise/loud when on highway/freeway https://slantsix.org/forum/viewtopic.php?t=27645 |
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| Author: | Guest [ Tue Mar 04, 2008 6:59 pm ] |
| Post subject: | noise/loud when on highway/freeway |
When I drive my car on the freeway or even above 40mph it sure is loud/noisy. I don't have a loud exhaust or anything...I think i need to get some sound deadening material. Before the new headliner was put in I installed good insulation there, and behind the seat. As far as the floor I just have aftermarket carpet. Does anyone reccomend any products to help quiet things down? If so, where would you reccomend applying this product? Under the carpet? Firewall? Trunk? |
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| Author: | lincparts [ Tue Mar 04, 2008 7:23 pm ] |
| Post subject: | insulation |
i just finished my sound dampening project. I used this product throughout. http://cgi.ebay.com/ws/eBayISAPI.dll?Vi ... 0212943938 Now i had no headliner so it was cut to shape between the roof cross supports and then had the headliner installed. It was also used across the entire floor as i had no carpet then. I used the jute pading over the top of it and cause its thin 1/16 " the carpet went overboth layers easy. I ALSO LINED THE DOORS with it as this was easy too. Remove the door panel and cut to fit and the doors shape keeps it in place. I used a bit of duct tape to keep it on corners inside the door. I'll post some pics tonight. |
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| Author: | SlantSixDan [ Tue Mar 04, 2008 7:27 pm ] |
| Post subject: | |
Let's see if we can narrow in on the problem. What kind of noise is it? How would you describe it or imitate it? What speed range does it occur at? All speeds over 40? Or just, say, between 40 and 55? |
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| Author: | lincparts [ Tue Mar 04, 2008 7:36 pm ] |
| Post subject: | pics |
pics from install   the same insulation on the roof is also under the carpet pad. You can kinda see into the door panels. This with the weather seals makes it ideal for quiet. My turbo style magnaflow muffler (with turn down) is quiet almost to a fault. So it took 60 sq feet of insulation to do my wagon. |
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| Author: | Guest [ Wed Mar 05, 2008 7:10 am ] |
| Post subject: | |
Quote: Let's see if we can narrow in on the problem. What kind of noise is it? How would you describe it or imitate it? What speed range does it occur at? All speeds over 40? Or just, say, between 40 and 55?
It's just ambient noise from the engine/exhaust/road...it gets louder the faster I go. I think I just need to insulate the entire car (instead of the roof/back seat) like lincparts said.Quote: the same insulation on the roof is also under the carpet pad. You can kinda see into the door panels. This with the weather seals makes it ideal for quiet. My turbo style magnaflow muffler (with turn down) is quiet almost to a fault. So it took 60 sq feet of insulation to do my wagon.
That looks beautiful man...how did you get the stuff to stick so well? I've NEVER been able to get the stuff to stick very well, and I tried different methods...I use the 3M stuff, any suggestions?How exactly did you get it in the doors? Did you spray the stuff in the door then cram the material in there? I used this stuff for the roof/back seat...and it looks like I have enough laying-around for the rest of the car.... http://www.carinsulation.com/Order/order.php |
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| Author: | lincparts [ Wed Mar 05, 2008 9:46 am ] |
| Post subject: | doors |
for the doors i rough cut the shape and when i put it up against the door skin it took to it with no glue at all.I So its a "press fit" with 2 pieces of duct tape holding an edge. For the roof 3 m spray can let it tack a little bit then press onto surface. |
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| Author: | dudley [ Wed Mar 05, 2008 1:09 pm ] |
| Post subject: | |
Quote: It's just ambient noise from the engine/exhaust/road...it gets louder the faster I go.
Wheel bearings becoming worn?
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| Author: | Guest [ Wed Mar 05, 2008 1:23 pm ] |
| Post subject: | |
Quote: Wheel bearings becoming worn?
Nope...it's just noise. It's probably mainly a combination of exhaust, engine, and road noise.I would like to get some Dynamat insulation for the doors...has anyone used that stuff before? |
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| Author: | 64 Convert [ Wed Mar 05, 2008 3:08 pm ] |
| Post subject: | |
I used the same material as Dynamat....can't recall the brand....inside my '73 Dodge truck. I used it everywhere, and it made a world of difference. Don't use it on the outside skin of your doors, unless yours is a showcar only. Water will get between the material and the door skin, and you'll have serious rust problems. I put it between the door and the trim panel, in recessed areas. It dampened a lot of noise just by not allowing all the metal to resonate. The only noise I now have in my truck, is from the wind around the doors. I still haven't found a way to quiet that. Check the rubber seal around your steering column. If it's not tightly sealed, it will allow a lot of engine and road noise to come in. |
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| Author: | Guest [ Wed Mar 05, 2008 3:15 pm ] |
| Post subject: | |
Quote: I put it between the door and the trim panel
I'm not sure what you mean exactly...like on the outside of the door? by the handle and stuff? And then put the door panel over it?Quote: Check the rubber seal around your steering column. If it's not tightly sealed, it will allow a lot of engine and road noise to come in.
Thanks will do.Quote: The only noise I now have in my truck, is from the wind around the doors. I still haven't found a way to quiet that.
Yep I have that noise too...i'm thinking of dropping the dash so I can install new weather stripping...although that's expensive and a HUGE hassle :/Any advice where to get good weatherstripping? 71 Dodge Dart Swinger 2-door |
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| Author: | SlantSixDan [ Wed Mar 05, 2008 3:50 pm ] |
| Post subject: | |
...and then there's this sprayable option... |
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| Author: | 65Dodge100 [ Wed Mar 05, 2008 4:19 pm ] |
| Post subject: | |
Keep in mind that water does run inside the doors. If you put a sponge in there where air doesn’t move, and it ever gets wet, chances are that it will stay wet until it rusts a hole in the door so it can get more wet. If it’s not mounted securely, it will be in a pile in the bottom of the door doing the same thing while blocking the drain holes. The quick and easy method is to put plastic over the section that the door panel covers. Then insulation, then the door panel. Even if you do nothing else, it makes a LOT of difference. A little better would be to put the tar-like deadener on the inside of the interior side of the door - around the the part that’s insulated by the door panel/plastic/insulation. Then cover the access holes, or the whole panel, behind the door panel with the same stuff. You could still use insulation under the door panel but the plastic wouldn’t be needed. 64 Convert may be right. But I’ve always put a couple of the stick-on tar-like panels on the outside door skin. It’s a little extra sound protection but mostly helps stop the door from ringing. If it doesn’t need it, it would definitely be safer without it — everything has to be extremely clean. If it doesn’t stick, it’s useless anyway. Dynamat may be cheaper somewhere else. Here, it’s 44 mils thick and $4.58-ish per square foot. I’ve used B-Quiet. It’s about the same thing except 45 mils thick and $1.70 per square foot. Even cheaper if you buy two rolls. The roof is a different story. I wouldn’t put the heavy Dynamat-type panels up there. I’d be afraid the heat would make them fall. Danny |
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| Author: | Guest [ Wed Mar 05, 2008 4:57 pm ] |
| Post subject: | |
Quote: The quick and easy method is to put plastic over the section that the door panel covers. Then insulation, then the door panel.
I guess so...but then the insulation would be sticking to the plastic...and the plastic just sorta 'hangs' there. The plastic would need to be stuck to the door pretty well with some spray, wouldn't you think?
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| Author: | 65Dodge100 [ Wed Mar 05, 2008 5:53 pm ] |
| Post subject: | |
Quote: I guess so...but then the insulation would be sticking to the plastic...and the plastic just sorta 'hangs' there. The plastic would need to be stuck to the door pretty well with some spray, wouldn't you think?
Nope. It's just a barrier between the door panel and the holes in the door like most high end new cars have. The door panel holds it on. You could glue it to the panel, though, if you wanted to.I’m not talking about sticky sound deadener. I’m talking about the ebay hairy insulation stuff. If it did stick to the plastic it would simplify things... Danny |
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| Author: | Guest [ Mon Jul 28, 2008 11:54 am ] |
| Post subject: | |
lincparts, that ebay link is now dead, can you provide me with another link? or at least the name of that insulation? Thanks... |
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