I cannot believe you added over 500lbs to a performance car. Thats like sucking 50-75hp away from the motor. Next time buy a Lexus.
< Message edited by Thunderbutt -- 10/20/2007 6:00:35 PM >
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2007 GT 5 SPEED FULL ROUSH SUSPENSION ROUSH REAR SPOILER LEGEND FRONT SPOILER HURST SHIFTER AMERICAN RACING RAZORS BASSANI SS HIGH FLOW CATTED X-PIPE GTA MUFFLERS BRENSPEED CAI & TUNE FORD RACING 4.10
ORIGINAL: Thunderbutt I cannot believe you added over 500lbs to a performance car. Thats like sucking 50-75hp away from the motor. Next time buy a Lexus.
I cannot believe you added over 500lbs to a performance car. Thats like sucking 50-75hp away from the motor. Next time buy a Lexus.
HAHA its sound deadening material not concrete lol. I have done patches here and there nevet the whole car but it does make huge differences. Next time I would recomend using http://www.edesignaudio.com/edv2/index.php?cPath=24 they are alot cheaper and its all the same stuff just different names.
Hey Cookiemonster, How much of the materials did you use? I'm going to order from second skin according to your list. Just wondering if you had anything left over, or would change besides the things you already mentioned? I'm also wondering where you got your information about what to use for the layers? It seems like doing the 3 layers is a lot. Not that I'm skimpy, but how much difference does the middle layer of overkill make? Seems like the damplifier plus luxury liner should accomplish the same thing. What are your thoughts?
< Message edited by Toad -- 10/21/2007 10:07:17 AM >
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---=== 06 RedFire GT, C&L Racer with Brenspeed SCT tune, Shaker 1000, Premium package, active alarm(how cool is that!) ===---
Hi Toad: I used up pretty much all of the materials I ordered, except for about 1/2 sheet (4.5 sq ft) of Overkill and 1 sheet (9 sq ft) of Luxury Liner left over.
In retrospect, I'd probably go with 2 sheets of Luxury Liner instead of the 4 I ordered, and use the savings towards doubling up on the Damplifier instead in certain places (floor & driveshaft well).
I read about the 3-step-layer system from: http://secondskinaudio.com/3-step-plan-noise.php and from different users at their forum. There was a big difference between rapping on the metal & rapping on the metal that had a layer of Damplifier; there was also a fairly significant difference after putting on Overkill, and another significant difference after putting on Luxury Liner. I know this is just my judgement and what my ears heard - not hard measurements - so take it for what it's worth!
Good luck!!
quote:
ORIGINAL: Toad
Hey Cookiemonster, How much of the materials did you use? I'm going to order from second skin according to your list. Just wondering if you had anything left over, or would change besides the things you already mentioned? I'm also wondering where you got your information about what to use for the layers? It seems like doing the 3 layers is a lot. Not that I'm skimpy, but how much difference does the middle layer of overkill make? Seems like the damplifier plus luxury liner should accomplish the same thing. What are your thoughts?
You know that's almost exactly what I was thinking! That stuff's expensive, and heavy. What about maybe using more overkill? That stuff has a good write up and reputation, what are your thoughts about maybe doubling up or even tripling up on that stuff in places, perhaps in leiu of the luxury liner in spots? They also sell the overkill pro which is about 3 times as thick as the regular stuff...lightweight and fairly inexpensive...although I suppose that one of the best things about the luxury liner is its' mass, in the form of the vinyl barrier.
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---=== 06 RedFire GT, C&L Racer with Brenspeed SCT tune, Shaker 1000, Premium package, active alarm(how cool is that!) ===---
Toad: In effectiveness, (in my opinion) Damplifier is better than Overkill, which is better than Luxury Liner ... so I'd spend more on Damplifier than Overkill if I could re-do it. The vinyl barrier in Lux Liner is mainly used to reflect the remaining noise instead of add mass; adding mass is the main goal of Damplifier.
Great write up!! I asked BestBuy about their sound deadening and they charge upwards of around $700 W/O labor!! I've had to tear into the panels before and when I put my Boost/Fuel Pressure gauges in this'll be on the docket with the install.
thanks again for this guide. I think I am going to begin this next month.
So just to clarify, if you were to do this again, how would you change the parts list in the Original Post
quote:
Second Skin Audio's Damplifier 80 sq ft - $187.20 (30 lbs) - Used to add mass to metal, and absorbs unwanted vibrations; the foil layer reflects unwanted sound OverKill 36 sq ft - $43.13 (.468 lbs) - This is used to scatter the remaining vibrations that manages to pass through the Damplifier layer Luxury Liner 36 sq ft $99.98 (I used ~27 sq ft = 27 lbs) - Used to absorb the last remaining vibrations that pass through the OverKill layer Spray Adhesive 2 cans $23.94 - Used to attach Overkill & Luxury Liner Panel Popper - $9.34 - Used to pull out pin-type retainers and trim Wooden Hand Roller - $8.97 - Used to flatten Damplifier (saves your hands from cuts!) Rags & Denatured Alcoh. $2.00 - Used to clean metal
< Message edited by ThaiCobra -- 3/22/2008 5:47:22 AM >
ThaiCobra : If I had the chance to do it over again, I guess I would use more Damplifier and less OverKill & Luxury Liner ... other than that, I'm pretty happy with the results.
That's a lot of damper!!! The 60-70lbs total isn't bad, but I didn't want to add that much weight.
I picked up 20 sq ft to do the Mustang & GF's SUV. It may not sound like much, but a little goes a long way. Just using a 1x2 sq ft piece, cut into four strips, I put that on the roof in an X and that made a big difference in the boom in the car. Originally, I could rap the roof and hear ringing for 3-4 seconds. With the 'X' in place it's under 1 second.
I used another couple 1x2 patches cut into various pieces in the trunk. Now the car is quiet enough that gear/trans noise & tire noise are loudest, So I need to 'X' the trans tunnel & the rear wheel wells at the rear seats. I'll probably put a bit at the upper control arm attachment area.
The 20 sq ft box had a shipping weight of 7 lbs, So I'll have less than 4 lbs of stuff with a big improvement. If I really want a quieter car after that, I'll try foam bits behind the trim.
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RE: Wow! What a difference ... (Sound Deadening) - 
