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01-18-2012, 10:38 PM | #1 |
Drives: 08 BMW 135i Join Date: Jul 2011
Location: Durham, NC
Posts: 74
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Reduce road noise: Floor or Doors?
OK, so I am on a mission to make my car a bit better all around. By a bit better, I mean lowering it to add some MPGs, adding light wheels and good tires to improve the ride, a good alignment, etc.
I also want to start to reduce some of the road noise. I spent most of the day at work reading about sound dampening. I decided I would use RaamMat and Ensolite since it is cost effective. But I want to do this in small chunks, so here is my question: If you had to do just one, either the 4 doors or the entire floor, which would you do first to help reduce road noise? I eventually plan on doing both, include the trunk and lid, but I want the most impact first. I have look through Derick's thread and SQLs and they do a good job of showing the install, but I haven't found anyone that says they have done it for road noise. Thanks YW. |
01-19-2012, 09:59 PM | #2 | |
Quote:
One day I had my son in the rear seat we where driving on the high way at about 65 mph and I just couldn't talk to him or listen to him, we end up screaming each other. Since then all what I've been trying to do is to reduce the noise levels inside my car at high way speeds. Remember that you need to block the noise, The most cost effective way is using a sound barrier like Mass Loaded Vinyl (MLV) this is very close to "Lead" and it's used in construction as a "sound barrier". And be aware that even I write cost effective, this is not cheap!!! CLD Tiles (thick Mat) can be apply only to flat areas and you only need to cover 25%; then a layer of CCFoam is recommended in this equation. At the end my build turns into a Sound Quality install, and I did some extra steps on the doors to improve the sound from my speakers. Other than that it's about blocking noise. more info about deadening follow this LINK Talk to Don, tell him my name he will help you and explain in more detail how it works. I hope I didn't confuse you! let me know D.
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. My system may not blow your ears, but it will sweeten your senses. CLA 250, 4MATIC |
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01-19-2012, 10:01 PM | #3 |
But to answer your question... Attack the floor and wheel wells! that's where the noise is coming from!
D.
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. My system may not blow your ears, but it will sweeten your senses. CLA 250, 4MATIC |
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01-19-2012, 10:35 PM | #4 |
Drives: 08 BMW 135i Join Date: Jul 2011
Location: Durham, NC
Posts: 74
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01-19-2012, 11:28 PM | #5 | |
Drives: 2005 Toyota Echo Join Date: Aug 2010
Location: Brampton, ON
Posts: 505
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Quote:
Get some CLD tiles, some sort of CCF (ensolite) and lots of MLV.
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2006 Saturn Ion Redline 2005 Toyota Echo RS 4dr hatch - Cyl #3 bad - sold 2000 Toyota Echo 2dr coupe - The track car - rusty & scrapped |
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01-19-2012, 11:48 PM | #6 |
Drives: 08 BMW 135i Join Date: Jul 2011
Location: Durham, NC
Posts: 74
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01-20-2012, 03:55 AM | #7 | |
Drives: 2008 YRS 5Dr LB (1.5L) Join Date: Dec 2011
Location: Melbourne
Posts: 38
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Quote:
Branded Options for "killing sound" 1) CLD tiles + CCF + MLV (three levels, effective in both minimising resonance and BLOCKING/MINIMISE noise from the outside) 2) RaamMat + Ensolite (two levels that minimises sound resonance and MINIMISE noise) 3) Dynamat - an "All-in-one" application that does the above. This is what i've gleaned from this forum over the past month. Aaron |
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02-18-2012, 12:43 PM | #8 |
I've made a post!
Drives: Yaris SR 1.4 D4-D Join Date: Nov 2011
Location: England
Posts: 1
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I've just done a partial deadening job based on derickveliz2's thread. I did the front doors and front footwells/arches.
In order of effectiveness: Most effective - Drivers footwell & arch. There's missing factory deadening on this side and the difference is incredibly dramatic! Next effective - Passenger footwell & arch. More factory deadening but nearly as effective. Least effective - Doors, still a good improvement but nowhere near as good as the driver footwell. I've used silent coat tiles (2mm butyl + aluminium top layer) covering 25% of the panels and 6mm (1/8th inch) closed cell foam covering the entire panel/floor at the front. if i used MLV and proper CLD tiles i'm sure i'd see even more - but I am less of a perfectionist :) |
02-18-2012, 06:59 PM | #9 | |
Drives: soarer Join Date: Feb 2011
Location: Beautiful British Columbia
Posts: 954
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Quote:
(my approach, though, is that best noise killer is a GOOD sound system )) |
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02-18-2012, 01:10 PM | #10 |
YEah! good job!
Wheel wells are noise machines! wait until it rains, you'll feel a big improvement! (in noise reduction) I found out that I'm using less MAT and more MLV, I just added a layer of MLV on top of the rear deck (on top of the rear OEM speakers) and from under the deck another 2 small pieces of MLV blocking the openings, used velcro to hold them in place (over kill), the end result! day and night! D.
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. My system may not blow your ears, but it will sweeten your senses. CLA 250, 4MATIC |
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02-18-2012, 03:32 PM | #11 |
Roadrunner Jr.
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Take a look at Stinger's Overkill product as well.
I swear by that product.
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“To argue with a person who has renounced the use of reason is like administering medicine to the dead.” ― Thomas Paine |
02-18-2012, 08:19 PM | #12 |
Only Happy When it Rains
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one thing i can add is all that sound deadening adds weight. No way you will be able to get better gas mileage when you put in a few hundred pounds of material in the car. Saying this just as a heads up, not to dissuade you. I took the seats, the carpets, and as much stuff out of my car as i could. i can hear the gas sloshing around in the tank.
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Colin Chapman disciple |
02-19-2012, 09:32 PM | #13 |
I get 42.7 mpg in summer
and 40.2 mpg in winter with more than 200 pounds of extra weight. D.
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. My system may not blow your ears, but it will sweeten your senses. CLA 250, 4MATIC |
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02-20-2012, 09:13 PM | #14 |
Only Happy When it Rains
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what the heck, do you shut the engine off on the highway? Thats pretty damn amazing.
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Colin Chapman disciple |
02-21-2012, 11:26 AM | #15 | |
Quote:
D.
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. My system may not blow your ears, but it will sweeten your senses. CLA 250, 4MATIC |
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02-22-2012, 04:34 PM | #16 |
Only Happy When it Rains
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wow that is a heck of a lot of driving. I'll trade worse gas mileage for not having that commute every day. I did that for two weeks, never want to again.
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Colin Chapman disciple |
03-14-2012, 12:13 AM | #17 |
Drives: 2008 Yaris HB Join Date: Oct 2008
Location: University Place,WA
Posts: 828
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I found doing my foot wells and under the seats really made a huge differance as well.
The rear wheelwells put out a huge amount of noise and I had to do them,the side panels,then back of the interior panels,and the rear floor as well. Overall added weight was around 70lbs in deadening.Did it eliminate all the noise....god I wish. |
02-21-2012, 12:30 AM | #18 |
Roadrunner Jr.
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On a freeway trip up to Seattle, I'll get the 42+ MPG.
Most of the time it's right at 40 for me as well. Two similar vehicles, different sides of the country. Same results.
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“To argue with a person who has renounced the use of reason is like administering medicine to the dead.” ― Thomas Paine |
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