XR's 124 Spider Audio Thread - Page 3 - Fiat 124 Spider Forum
 148Likes
Reply
 
Thread Tools
post #21 of 192 (permalink) Old 03-24-2018, 10:37 AM
Senior Member
 
Roadscum's Avatar
 
Join Date: Jul 2017
Location: SW Floor rid ahhhhh.
Posts: 431
Anxiously waiting your recommendation for the most effective way to reduce the resonance from the trunk pan. Thx!!

Paul
XtremeRevolution likes this.
Roadscum is offline  
Sponsored Links
Advertisement
 
post #22 of 192 (permalink) Old 03-24-2018, 11:22 AM
Senior Member
 
ameridan's Avatar
 
Join Date: Jul 2016
Location: Chicagoland
Posts: 879
Quote:
Originally Posted by Dualkatz View Post
Just wanted to point out the "rectangle" again. You can see the backs of the cubbies (felt) and center console (hard plastic with a bumper on top so I think the roof actually rests on this when down) and then there's the molded "rectangle" behind these. You can feel it if you put your hand right to the back of the cubbies. If there is a void under the "rectangle", this would be some serious space (at least for this car). Just looking to see if a total "stealth" installation is possible.
I'm pretty sure that underneath that rectangle is the inlet and vent tube for the fuel tank, so I wouldn't mess with that area.
XtremeRevolution likes this.
ameridan is online now  
post #23 of 192 (permalink) Old 03-24-2018, 09:50 PM Thread Starter
Administrator
 
XtremeRevolution's Avatar
 
Join Date: Mar 2017
Location: USA
Posts: 1,805
(Thread Starter)
Quote:
Originally Posted by Roadscum View Post
Anxiously waiting your recommendation for the most effective way to reduce the resonance from the trunk pan. Thx!!

Paul
Professional grade CLD tiles from SoundDeadenerShowdown.com. You need 25% coverage area so 2 CLD tiles will do it. The video will show you how much noise it actually makes, where and how to apply, and the before and after difference.

Do not waste your time with peel n stick deadeners as they will not be as effective for the amount you have to use and will add unnecessary weight. The video will explain all.
Roadscum and Dualkatz like this.
XtremeRevolution is online now  
post #24 of 192 (permalink) Old 03-25-2018, 03:40 AM
Member
 
rsmagee's Avatar
 
Join Date: Jan 2018
Location: Midlands, UK
Posts: 97
Quote:
Originally Posted by XtremeRevolution View Post
Professional grade CLD tiles from SoundDeadenerShowdown.com. You need 25% coverage area so 2 CLD tiles will do it. The video will show you how much noise it actually makes, where and how to apply, and the before and after difference.

Do not waste your time with peel n stick deadeners as they will not be as effective for the amount you have to use and will add unnecessary weight. The video will explain all.
Any recommendation for those in the UK? We canít get those CLD tiles easily but dynamat ect is common enough.

Fiat 124 Spider Lusso - White
GFB DV+
EC V1 Air Intake
EC Phase 1 Tune
MATCH M 5DSP - Focal RSE-165 Speakers (active)
Carplay Enabled
rsmagee is offline  
post #25 of 192 (permalink) Old 03-25-2018, 10:30 AM
Member
 
Join Date: Mar 2018
Location: Wellington County, Ontario Canada
Posts: 74
Quote:
Originally Posted by XtremeRevolution View Post
Oh and side note, if anyone wants to cut down on some road noise, the bottom "pan" area of the trunk resonates LIKE CRAZY. I'll take a video soon so you can see and hear what I'm talking about. I'm actually really baffled that FIAT didn't do any sound deadening there. That's a huge miss.
Saw a video of a guy putting dynamat all over the place in the truck space and he noted that too. He was just tapping on things with a screwdriver, but that bottom pan 'rang out' pretty good (bad thing).
Dualkatz is offline  
post #26 of 192 (permalink) Old 03-25-2018, 11:55 AM
Senior Member
 
Roadscum's Avatar
 
Join Date: Jul 2017
Location: SW Floor rid ahhhhh.
Posts: 431
CLD panel have been ordered!

Paul
Roadscum is offline  
post #27 of 192 (permalink) Old 03-25-2018, 11:59 AM Thread Starter
Administrator
 
XtremeRevolution's Avatar
 
Join Date: Mar 2017
Location: USA
Posts: 1,805
(Thread Starter)
Quote:
Originally Posted by rsmagee View Post
Any recommendation for those in the UK? We canít get those CLD tiles easily but dynamat ect is common enough.
Quote:
Originally Posted by Dualkatz View Post
Saw a video of a guy putting dynamat all over the place in the truck space and he noted that too. He was just tapping on things with a screwdriver, but that bottom pan 'rang out' pretty good (bad thing).
For how popular it is, it's really not all that great and people overwhelmingly take a very unscientific approach to using it.

A vibration deadener needs only 25% coverage area, if it's purpose-built and effective like CLD tiles are. A vibration deadener should not be used as a sound blocking medium. Dynamat is heralded as a "one size fits all" solution but is not particularly good at anything it claims to do compared to purpose-built products like CLD Tiles. Dynamat just does not have a thick enough flexible medium or aluminum layer to make a big difference without covering every square inch, but if that's all you have, then I guess use it.
XtremeRevolution is online now  
post #28 of 192 (permalink) Old 03-25-2018, 02:16 PM
Member
 
Join Date: Mar 2018
Location: Wellington County, Ontario Canada
Posts: 74
Quote:
Originally Posted by XtremeRevolution View Post
For how popular it is, it's really not all that great and people overwhelmingly take a very unscientific approach to using it.
Yeah, I've never been a big fan of that type of product.

Just went and checked for myself and that lower trunk pan is adding to the racket for sure! Rings like a bell.

In the vein of "a more quiet interior is a better place to start" for stereo listening/performance, do you think some CLD tile use on the front of the rear wheel wells would help? I read somewhere that Fiat added a lot more deadener to the car as compared to Mazda and it seems like the front of the car is really quiet, but the back, not so much. Seems like there's a lot of noise coming from behind the seat area (wheel well and trunk area) more than from the convertible roof. Appears that they were getting desperate with the addition of the "fiber thingys" added to the front inner wheel well on the OUTSIDE of the car.
Dualkatz is offline  
post #29 of 192 (permalink) Old 03-25-2018, 02:17 PM
Member
 
rsmagee's Avatar
 
Join Date: Jan 2018
Location: Midlands, UK
Posts: 97
Quote:
Originally Posted by XtremeRevolution View Post
For how popular it is, it's really not all that great and people overwhelmingly take a very unscientific approach to using it.

A vibration deadener needs only 25% coverage area, if it's purpose-built and effective like CLD tiles are. A vibration deadener should not be used as a sound blocking medium. Dynamat is heralded as a "one size fits all" solution but is not particularly good at anything it claims to do compared to purpose-built products like CLD Tiles. Dynamat just does not have a thick enough flexible medium or aluminum layer to make a big difference without covering every square inch, but if that's all you have, then I guess use it.
Ok thanks for your help, don't really want to waste money on a subpar product. Would something like this be better?

Fiat 124 Spider Lusso - White
GFB DV+
EC V1 Air Intake
EC Phase 1 Tune
MATCH M 5DSP - Focal RSE-165 Speakers (active)
Carplay Enabled
rsmagee is offline  
post #30 of 192 (permalink) Old 03-25-2018, 02:34 PM Thread Starter
Administrator
 
XtremeRevolution's Avatar
 
Join Date: Mar 2017
Location: USA
Posts: 1,805
(Thread Starter)
Quote:
Originally Posted by Dualkatz View Post
Yeah, I've never been a big fan of that type of product.

Just went and checked for myself and that lower trunk pan is adding to the racket for sure! Rings like a bell.

In the vein of "a more quiet interior is a better place to start" for stereo listening/performance, do you think some CLD tile use on the front of the rear wheel wells would help? I read somewhere that Fiat added a lot more deadener to the car as compared to Mazda and it seems like the front of the car is really quiet, but the back, not so much. Seems like there's a lot of noise coming from behind the seat area (wheel well and trunk area) more than from the convertible roof. Appears that they were getting desperate with the addition of the "fiber thingys" added to the front inner wheel well on the OUTSIDE of the car.
Part of the reason for the rear noise is the top, but another part is the panel resonance. You can apply CLD tiles to any of those. As a general rule, large flat surfaces will resonate, while curved surfaces will have their own inherent strength and will not resonate. Just perform a quick screwdriver test; hit it with the back of a screwdriver. If it rings, bongs, or otherwise resonates, apply 25% coverage with CLD tiles.

This is a 124 Spider; there is nothing we can do to eliminate the noise floor that is introduced by the soft top and other parts of the system like the top drains. It is not worth going through the trouble of adding significant weight in a 100% coverage area like some cars do to actually eliminate road noise. That ship has sailed and we're not swimming after it. It is however worthwhile and cost effective to install CLD tiles methodically in specific locations, and with very little weight penalty at that.

Quote:
Originally Posted by rsmagee View Post
Ok thanks for your help, don't really want to waste money on a subpar product. Would something like this be better?
Something like what? I think you intended to post a link to a product but it didn't show up.
XtremeRevolution is online now  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Fiat 124 Spider Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off

 
For the best viewing experience please update your browser to Google Chrome