Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

odd noise....

Thread Tools
 
Search this Thread
 
Old May 1, 2006 | 10:52 AM
  #1  
SSquid's Avatar
Thread Starter
TECH Resident
iTrader: (4)
 
Joined: Jul 2005
Posts: 935
Likes: 0
From: Richmond, VA
Default odd noise....

Ok... I have long tubes and ORY... and when I had stock muffler on there *with a cut out* never heard this... I then added a SLP LM.... and now, like when you let out the clutch and you dont over rev the hell out of it... or when the motor is cold and you let off the gas at about 2.5k... you hear this ehhhhhhh crazy *** noise... sounds like something is hittin under the car REALLLLLLY fast.... is the pipe where it runs over the axle hittin? sounds like its right under either the passenger seeat or the passenger rear seat... any ideas how to test and fix?
Reply
Old May 1, 2006 | 11:07 AM
  #2  
daryl2cb@yahoo.com's Avatar
TECH Fanatic
iTrader: (2)
 
Joined: Jul 2004
Posts: 1,882
Likes: 0
From: Greensburg,PA
Default

well, first get under there and look around see something rubbing? no, then have someone start it up, look under there, most likely something is rubbing.
Reply
Old May 1, 2006 | 01:17 PM
  #3  
TheBlurLS1's Avatar
That's what she said...
iTrader: (8)
 
Joined: Mar 2004
Posts: 7,954
Likes: 2
From: Nederland Texas
Default

After a few weeks of driving, there should be an obvious rub-mark. Might want to check your tranny mount also. I though my posi unit was going out in my old 10-bolt, turned out to be the trans mount.

99% of people's exhaust hits under the driverside floorboard.
Reply
Old May 7, 2006 | 03:50 PM
  #4  
SSquid's Avatar
Thread Starter
TECH Resident
iTrader: (4)
 
Joined: Jul 2005
Posts: 935
Likes: 0
From: Richmond, VA
Default

whats that thing that is about 18 inches long... goes right over the pipe after the Y... looks like it would be some kind of reinforcement for something... thats what the pipe is resting on...
Reply
Old May 7, 2006 | 04:13 PM
  #5  
dnm12's Avatar
11 Second Club
iTrader: (13)
 
Joined: Sep 2005
Posts: 704
Likes: 0
From: Sacramento, CA
Default

the tunnel brace??? looks like this:

Reply
Old May 7, 2006 | 05:12 PM
  #6  
SSquid's Avatar
Thread Starter
TECH Resident
iTrader: (4)
 
Joined: Jul 2005
Posts: 935
Likes: 0
From: Richmond, VA
Default

yep looks just like that... what is that? whats it do? can it be removed or is that a bad idea?
Reply
Old May 7, 2006 | 05:32 PM
  #7  
TheBlurLS1's Avatar
That's what she said...
iTrader: (8)
 
Joined: Mar 2004
Posts: 7,954
Likes: 2
From: Nederland Texas
Default

Thats the tunnel brace, you can take it off and throw it away if it is a problem. Almost everyone with true duals throws theirs away.
Reply




All times are GMT -5. The time now is 10:45 AM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE