Too Loud! - Team Camaro Tech
Troubleshooting Diagnosing problems done here.

 
LinkBack Thread Tools Display Modes
post #1 of 11 (permalink) Old Jul 27th, 03, 03:05 PM Thread Starter
 
Join Date: Feb 2002
Posts: 14
Post

Hello! On my ongoing 68 project, I recently had headers and a flowmaster American Thunder exhaust put on with Delta 40 muffs. It sounds GREAT in town, no problems, but on the interstate, it's just a little too loud to have a cell phone conversation or listen to the radio. Would moving up to the 50 series help, or are there some things I could do to the car to make the interior more quiet? It's a daily driver, not a show car. I did put in new carpet with a new pad under the carpet. Is there a treatment for the trunk that works? This is where most of the sound seems to be coming from. Thanks!!
Dyke Corson is offline  
Sponsored Links
Advertisement
 
post #2 of 11 (permalink) Old Jul 27th, 03, 04:18 PM
Senior Tech
 
Join Date: Apr 2003
Location: Allen, TX
Posts: 2,108
Post

I recommend the Dynomax Super Turbo mufflers instead, they are much quieter and only make noise when you accelerate. Very good for freeway driving, I can talk on my cell phone with the windows down!!
As for treatment, you should dynomat the whole interior floor inside the cabin and get the pad that goes between the back seat and the trunk. As for the trunk, I plan to clean it up and lay a few coats of that Truck Bed Liner stuff inside to give it a nice finish.


Hedmann Headers, Dynomax Super Turbo Mufflers, Flowmaster Mandrel Bent Exhaust Pipes

1969 Camaro - GM 2003 Electron Blue
Beck Racing 383 cu in 465HP Engine - Sean Murphy Inductions Stage 2 Quadrajet
TCI Streetfighter 350 - 3.73:1 Posi 10 Bolt Rear - 12.6 sec qtr mile

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
and
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Brian Lewis is offline  
post #3 of 11 (permalink) Old Jul 28th, 03, 05:45 AM
Gold Lifetime Member
Bruno
 
Join Date: Oct 2000
Location: Puerto Rico
Posts: 2,118
Post

The only inconvenient with the 50 Delta Flow is their case lenght, 17" vs 13". The under car space is perfect for the 40 series, even tho some here have them installed in their Camaros.


"Our affair with Camaros is a life sentence without the possibility of parole".
ORENCH is offline  
 
post #4 of 11 (permalink) Old Jul 28th, 03, 06:11 PM
Senior Tech
 
Join Date: Nov 2002
Location: Aiea, Hawaii
Posts: 571
Post

Don't feel bad. I got rid of the flowmasters due to noise. Sitting in the car it was louder than standing outside the car. They sound great it's just the attention attraction I didn't like cops, neighbors, and car alarms being set off on the side of the road. Running turbo mufflers swapped in now and it less noise. I think they are slowly getting blown out though.
Snatchin'gears is offline  
post #5 of 11 (permalink) Old Jul 29th, 03, 05:25 AM
Senior Tech
 
Join Date: Feb 2000
Location: Knoxville, TN
Posts: 503
Post

Does anyone know if the American Thunder pipes are available without the mufflers, or if any other companies offer a mandrel bent bolt on system with quieter mufflers for an early Camaro ?
Rons68 is offline  
post #6 of 11 (permalink) Old Jul 29th, 03, 05:56 AM
Senior Tech
 
Join Date: Apr 2003
Location: Allen, TX
Posts: 2,108
Post

Flowmaster sells the pipes designed for the mufflers to be mounted on the sites of the driveshaft, its $99 from Summit

FLO-15801 Chevrolet: 1967-81 Camaro/Firebird, 1962-74 Nova, 2 1/2 in. dual rear exit, tailpipe kit $99.95
WLK-17734 Super Turbo, 2 1/2 in. offset inlet/offset outlet, muffler $34.95 QTY 2
Labor : $120

So for $280 I am very happy with my choice.

1969 Camaro - GM 2003 Electron Blue
Beck Racing 383 cu in 465HP Engine - Sean Murphy Inductions Stage 2 Quadrajet
TCI Streetfighter 350 - 3.73:1 Posi 10 Bolt Rear - 12.6 sec qtr mile

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
and
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Brian Lewis is offline  
post #7 of 11 (permalink) Old Jul 29th, 03, 05:33 PM
Senior Tech
67 Camaros Rock
 
Joe Harrison's Avatar
 
Join Date: Oct 1998
Location: Tucson Arizona
Posts: 7,151
Unhappy

What's this talking on the cell phone while driving [img]graemlins/angry.gif[/img] [img]graemlins/angry.gif[/img] Those flowmasters are a safety devise if you ask me. You have to pull over to have your conversation.

Must be me but I run the cheapest flows available on my Camaro, I have Flow tech Shorty headers and Turn downs from the mufflers at the rear axle, but mine is not that noisy at least to me. At cruise speeds it sounds good and at idle it has the rumpy sound. It sounds alot faster than it really is. I drive mine daily, rain sleet or snow and it not bad at all. Could be because i don't have much cam or much of anything else but a stock 327 210 H/P engine.

"If you can leave black marks on a straight from the time you exit a corner till the time you brake for the next turn.......
Then, you have enough horsepower."
-Mark Donahue
My 67 Camaro Time Line
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Joe Harrison is offline  
post #8 of 11 (permalink) Old Aug 1st, 03, 03:21 AM
 
Join Date: Jul 2003
Posts: 13
Thumbs up

I've got same problem with mine. Sounds great for just a little while then it gets old, I am thinking about changing and putting something else on.
jones4 is offline  
post #9 of 11 (permalink) Old Aug 1st, 03, 05:37 AM
Senior Tech
Jeff
 
Join Date: Jun 1999
Location: Ewing, NJ 08560
Posts: 2,438
Post

I've got a pair of the Flowmaster big block 3 chamber mufflers on my 1991 SS454 pickup and it's actually too quiet most people say. There is no annoying resonance or anything. I'm not sure exactly which model # they are, but I'll try to find out. I've heard some big block Camaros with the Super Turbos that were not too loud either.

Jeff H
69 Z28 Hugger Orange original factory JL8 brakes, being restored
Jeff H is offline  
post #10 of 11 (permalink) Old Aug 1st, 03, 12:11 PM
Senior Tech
 
Join Date: Feb 2002
Location: seattle,wash
Posts: 142
Post

What's that old saying. " If it's too loud ,your too old".
kool is offline  
post #11 of 11 (permalink) Old Aug 1st, 03, 12:54 PM
Senior Tech
 
Join Date: Nov 2002
Location: Aiea, Hawaii
Posts: 571
Post

Two things. If it's two loud it's not you are too old because you've lost most of your hearing. So it must be the young that it's too loud for
The official government and army answer is wear ear plugs.
Corson how's the tinkering going? Back in the 60's a pair of glasspacks with straight tubes exiting to the rear and not turned down would keep most of the noise away from the car. Gotta watch out for cops getting behind you doing that. Patrolmen seem to have a lower pain threshold for noise.
Snatchin'gears is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Team Camaro Tech 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.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.



Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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 On

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