trunk rattle :(

[marcin93 10+ year member]

So I have been getting tired of my trunk rattle and decided to ask around for opinions on great ways to stop trunk rattle. Right now i have a custom 15" with a 4 cu.ft box tuned to about 32 hz. The sub is facing upwards because thats the only way it will fit....lol. So my idea so far is to build another box and have it facing forward. Then I will seal it off from the trunk so that it is all exposed only to the cabin(when the seats are down, that is). Opinions????

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[keep_hope_alive Premium Member]

your plan will work great and you'll probably be louder since you're wasting a lot of energy in the trunk.

you can also try wrapping some electrical tape around the trunk latch hoop - that is the most common source of rattle.

 

[09civic 5,000+ posts]

deadener......?

 

[marcin93 10+ year member]

thanks man and ill try that.

 

[sleazebagger 10+ year member]

thanks man and ill try that.

I definitely agree with both posters and your idea. you will gain some DB and it might sound a bit cleaner sealed up back there. Make sure you get a a couple rolls of deadener before you build so you can line that truck top to bottom. I put two layers of audio techinx in my hatch and I cant hear any rattle in the car. It helps contain the sound pretty substantially.

 

[CHEMMINS 10+ year member]

I would highly recommend deadener first to remove rattles. Changing box design or firing area will only move the rattles around. I just did the outer sheet metal of my doors with 80 mil AT deadener and there is a huge difference already. It is proven that if you layer anything with deadener it will either stop or highly reduce rattle. Foam is another way to reduce rattles. Ideally you would do a layer of deadener, then a layer of foam, than a layer of mass loaded vinyl.

 

[Bettr n' Revrse 5,000+ posts]

deadener......?

Nahhhh thats not its purpose lol... But yes OP try deading first

 

[marcin93 10+ year member]

ok well what are some recommended companies that sell sound deadener for a good price? and anything good to stop license plate rattle cus thats just whats killin me the most :/

 

[Bettr n' Revrse 5,000+ posts]

CLD is what you need... Just search Deadener on here and you will find plenty on it...

 

[keep_hope_alive Premium Member]

depends on the rattle. closed cell foam weatherstripping is perfect for license plates and most other panel-on-panel rattles. costs about $4.

you need to identify why it's rattling then isolate the two materials with something soft. deadener doesn't do that. it attempts to add mass (if it's the cheap stuff) and absorb vibrations (if it's the expensive stuff). that much power is going to move the trunk and shake the hell out of everything - deadener will increase volume but won't stop your trunk lid from moving.

firing it forward will increase output and eliminate trunk rattle. then deaden your cabin instead of your trunk.

 

[marcin93 10+ year member]

ok so ive made a decision to try out some CLD from sound deadener showdown and try it on my trunk and ill look for some closed cell foam weatherstripping because that makes a lot of sense to just put it around the license plate back. If that doesnt help as much as i wished than i will go on to my original plan.

 

[CHEMMINS 10+ year member]

I use Audio Technix because of the price and the quality. It isn't the cheapest out there, but think it is the cheapest butyl dampener. It also has the qualities you want, in the thickness you need. I wouldn't hesitate to use it or recommend it to anyone. I'll have pics up soon of the doors I did in my megacab.

 

[Chriszle 10+ year member]

^x2

 

[keep_hope_alive Premium Member]

RAAMmat BXT II is about the same price (0.52 lbs/sf, 0.60mil, 37.5sf for $90) and i've had great success with it as well.

 

[Buck 5,000+ posts]

So I have been getting tired of my trunk rattle and decided to ask around for opinions on great ways to stop trunk rattle. Right now i have a custom 15" with a 4 cu.ft box tuned to about 32 hz. The sub is facing upwards because thats the only way it will fit....lol. So my idea so far is to build another box and have it facing forward. Then I will seal it off from the trunk so that it is all exposed only to the cabin(when the seats are down, that is). Opinions????

I think you should deaden/brace the hell out of your trunk.