My Sound Dampening Project - Page 2

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Thread: My Sound Dampening Project

  1. #26
    "Its got a handle" sparkboy's Avatar
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    The Hatch.
    Products: Dynamat, Damplifier, Overkill and Overkill Pro



    Last edited by sparkboy; 03-29-2008 at 10:08 AM.
    Scott


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  3. #27
    "Its got a handle" sparkboy's Avatar
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    Finally got the car put back together and had a chance to take it for a quick blast up the freeway. My labor has paid off. Surfaces encountered were new asphalt, old asphalt, ground concrete and old concrete. Pretty nice db reduction for the weight added and has met my expectations.

    Cost of materials was $490 including shipping.

  4. #28
    Stock Twins King Stu Hagen's Avatar
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    If you could relate this to a percentage of noise drop, where would you put it?
    Anything above a 20% noise level drop I might consider doing this next winter. I think what you have detailed should be good enough to follow.

    I am not familiar with any of these materials except the name dynomat. Could you provide us maybe with links on where to get all of those ingredients?

    Stu

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  6. #29
    SupraForums Member talongvr4's Avatar
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    Right on! I vote for a sticky. What was the accurate weight you added to the car. Just a thought if I'd scrape the factory sound deadner (is it worth it?) & replaced with dynamat or similar products you mentioned will yield better results in noise & weight reduction, or should I leave the factory. Also where do you think are the crucial areas that is needed to be address. I'm seriously considering doing this as well as I hear alot of road & wind noise and especially by just removing the rear upper seats makes it worse.


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  7. #30
    ESE CULO
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    Very nice! Thanks for the pictures and other ideas as well! You should post this in the ICE section as well if you haven't already! *Thumbs Up*

  8. #31
    SupraForums Member Brian Robards's Avatar
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    Damn Scott looks good, I thought you were joking when you told me that you hated rattles

    If you are ever looking to get rid of your car LET ME KNOW. It is just about perfect in every way... GT40R, amazing paint, and now Lexus quiet interior. Can't get much better than that!

  9. #32
    ELITECUSTOMBODY exvelocity's Avatar
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    awsome work!, I vote for sticky,
    _Stefan B
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    do what's right,not what's easy
    Need professional advice or opinion on body/paint/assembly or cosmetic related issues?Just ask.

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  10. #33
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    I think you have done a great job. I hate how many rattles/ squeaks I get from the rear of the car, especially from the coilovers. When I get the time I will definitely be doing something like this.

    I think this is where a TON of noise enters our car. Have you ever thought about putting some type of insulation in the cavity? I saw somebody on the nissan boards put insulation simlular to what they use in houses in the cavity and they said it dropped road noise considerably. It is also very light so there would be no negative effects of trying it. This is the area I am talking about below.


  11. #34
    SupraForums Member
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    great work looks really nice. Thinking about doing that in my truck and car

  12. #35
    Fan of Stock Twins
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    I completed a similar project like this late last summer.
    I used BQuiet Ultimate to cover the floors, trunk, etc.
    (see my post in this thread: https://www.supraforums.com/forum/sho...t+under+carpet)

    It reduced exhaust noise greatly, but not so much of the road noise...I think the tire tread design of my BFG KDs may have a lot to do with it.

    Personally, I think the OP's project is a bit of overkill.
    Sound level (dB) is measured on a logarithmic scale, so to get even a 1 dB drop in sound level is quite an accomplishement.
    I definitely think there are "bang for the buck" areas for noise reduction material placement. Obviously, the stock locations are some. Looking at some of the newer Toyotas, sound deadening material is placed on the inner surface of the wheel wells. And, thicker glass is used for the winshield/windows. It'd be interesting if someone on here would like to put together some data by measuring interior dB in increments of sound deadening material (+ location) applied.
    Last edited by ACEspiritu; 03-31-2008 at 10:55 AM.

  13. #36
    (Rare & Unique) RikTT's Avatar
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    Thats a true designation to sound noise dampening. Looks like you really had it and you went above and beyond. Most, like myself will have done just basic interior. Great job considering its time consuming & very neat. GL with it
    ///



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  14. #37
    SupraForums Member akeosh's Avatar
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    wow you'll be able to sleep in there during a hurricane with no problem after this is done. ahaha

  15. #38
    "Its got a handle" sparkboy's Avatar
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    Stu, it is very hard to provide a percentage of reduction, but maybe:
    Exhaust -25%
    Engine -10%
    Smooth Asphalt -15%
    Average Asphalt -10%
    Old Concrete -8%

    All of the products came from secondskinaudio.com

    talongvr4, Never had the car on a scale. Decided to leave the factory material in place, I assume Toyota Engineers selected these locations for a reason. There was no factory material installed on the floor of my car, they cut back in '98
    The critical areas seem to be wheel wells, floor and back seat waterfall.

    RemixPinoY, Thank you! The audiophiles give me crap for not doing enough.

    Brian R., Thanks for the kind words! I do suffer with a little O.C.D, rattles being one of the issues.
    I think I'll keep the car, besides a HP God like you would have no use for it except driving the kids to ice skating lessons or something.
    I cannot thank you enough for all of the help.

    exvelocity, Thanks!

    cwtt, Thank you. I covered just the wheel well and brake duct with Overkill Pro. The audiophiles would probably fill this area.

    95blacksupra, Thanks. Just prepare to bleed.


    ACEspiritu, Your work looks great! I also run the BFG KD's, maybe it is just the tires! Did you use any foam or just a dampener?

    RikTT, Thank you. It is very time consuming.

    akeosh, You are right!
    Last edited by sparkboy; 04-12-2008 at 09:40 AM.

  16. #39
    PM Raider if you need me
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    Great thread, work looks professional and clean...


    I will be doing this soon, i like a nice smooth and quiet ride..

  17. #40
    Very nice. Just another thing to add to my list of things to do. lol

  18. #41
    Mamba Still On Top MDSUPERSTAR's Avatar
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    Old thread, but a good one.

  19. #42
    "Its got a handle" sparkboy's Avatar
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    Thanks guys!

  20. #43
    SupraForums Member FLINTSTONESKID's Avatar
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    wow..................that is all !!!



  21. #44
    SupraForums Member Supra98's Avatar
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    nice work!

  22. #45
    "Its got a handle" sparkboy's Avatar
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    Thanks FLINTSTONESKID and Supra 98

  23. #46
    SupraForums Member botchilah's Avatar
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    I wrapped up my entire exhaust (Veilside Teardrop TI) with Thermo-Tec and noise lessened, especially trailing-throttle boom but the noise changed into something more annoying but less loud lol

    TI is finicky to mess with I guess.

  24. #47
    BoostAddict4Life gamimnon's Avatar
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    i did something similar on my car, made all the difference when driving with a 4inch exhaust

  25. #48
    Blood for Blood RogueSupra's Avatar
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    yeah but 45lbs ...

  26. #49
    SupraForums Member neloner's Avatar
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    Nice job, I covered my tranny tunnel with a similar product after installing a lwfw and it made a noticable difference in noise. I'm sure your car is very nice a quiet now, probably feels a lot more "solid" too.

  27. #50
    Lets go Nets neonafk's Avatar
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    Quote Originally Posted by botchilah View Post
    I wrapped up my entire exhaust (Veilside Teardrop TI) with Thermo-Tec and noise lessened, especially trailing-throttle boom but the noise changed into something more annoying but less loud lol

    TI is finicky to mess with I guess.
    how did you do this? pics?

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