Products: Dynamat, Damplifier, Overkill and Overkill Pro
Products: Dynamat, Damplifier, Overkill and Overkill Pro
Last edited by sparkboy; 03-29-2008 at 10:08 AM.
Garrett GT 4088R
HKS GT Header
HKS GT Wastegate
HKS F-Con V-Pro
1000cc Fuel System
ETS 3-Row Intercooler
HKS Hipermax RS Coilovers
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.
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?
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.
93.5 MKIV TT Auto BPU+++
92 GVR4 #208
92 Talon 476 AWHP SOLD
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*
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!
awsome work!, I vote for sticky,
elite custom body + paint
do what's right,not what's easy
Need professional advice or opinion on body/paint/assembly or cosmetic related issues?Just ask.
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.
great work looks really nice. Thinking about doing that in my truck and car
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.
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
ALPINE 6spd BPU
BLACK 6spd SP71-APU J. Nenni Tuned
BLACK SC/GTE BL62-APU BUILT R154 4"DP/MP dual APEXI'S - SOLD
E-Designo Edition 55 AMG - S/C Pulley Headers IC Belt wrap Heat Exchanger ECU/TCU EX - Daily
4Runner SR5 Sports Edition - Lifted
RX7 FD R1 - BW/EFR83 Fully Built
wow you'll be able to sleep in there during a hurricane with no problem after this is done. ahaha
Stu, it is very hard to provide a percentage of reduction, but maybe:
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.
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.
Great thread, work looks professional and clean...
I will be doing this soon, i like a nice smooth and quiet ride..
Very nice. Just another thing to add to my list of things to do. lol
Old thread, but a good one.
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.
i did something similar on my car, made all the difference when driving with a 4inch exhaust
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.
2012 Infiniti G37x, Fast Intentions High Flow Resonated Cats, K&N Short Tube Intakes (13.9 @ 100)
2011 BMW 335i x Drive, JB4, Vishnu Catted Downpipe, JB Intake- 12.2 @ 111 (n55 e90 record) (SOLD)
1994 Toyota Supra TT 6-Spd, Baltic Blue, Targa Top, 1203rwhp / 900rwtq @ 29 psi(SOLD)