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

true duel exhaust question

Thread Tools
 
Search this Thread
 
Old Dec 17, 2007 | 04:44 PM
  #1  
3rdgentug's Avatar
Thread Starter
TECH Resident
iTrader: (23)
 
Joined: Jul 2005
Posts: 806
Likes: 0
From: memphis, tennessee
Default true duel exhaust question ( its not in the sticky! )

ok i got custom true duels run right now
i put the bullets closer to the front of the exhaust, not like most typical true duels ive seen run on f bodies that are at the end and then dumped.

i want to put in a H pipe.

does it matter if its behind the mufflers? will it make any difference at all?
i usually see x or h pipes in front of the mufflers though.

Last edited by 3rdgentug; Dec 18, 2007 at 12:52 PM.
Reply
Old Dec 18, 2007 | 12:44 PM
  #2  
3rdgentug's Avatar
Thread Starter
TECH Resident
iTrader: (23)
 
Joined: Jul 2005
Posts: 806
Likes: 0
From: memphis, tennessee
Default

any exhaust gurus out there?
Reply
Old Dec 18, 2007 | 01:15 PM
  #3  
'00_Z's Avatar
TECH Fanatic
iTrader: (3)
 
Joined: Aug 2004
Posts: 1,458
Likes: 0
From: holding down the couch
Default

This has been debated before and the consensus was that the crossover pipe should always be before the mufflers. I believe it has to do with the exhaust scavenging effect and the way back pressure is built up. But I'm no engineer.
Reply
Old Dec 18, 2007 | 01:15 PM
  #4  
SSNISTR's Avatar
11 Second Club
iTrader: (10)
 
Joined: Mar 2002
Posts: 2,728
Likes: 0
From: Florida
Default

Has to be behind the mufflers. It won't have the same effect after the mufflers where the flow has slowed down.
Reply
Old Dec 18, 2007 | 01:19 PM
  #5  
matt3383's Avatar
TECH Apprentice
iTrader: (3)
 
Joined: Sep 2006
Posts: 381
Likes: 0
From: Arizona
Default

Originally Posted by SSNISTR
Has to be behind the mufflers. It won't have the same effect after the mufflers where the flow has slowed down.
What he said but i think he ment to say infront of the mufflers.
Reply
Old Dec 18, 2007 | 04:29 PM
  #6  
3rdgentug's Avatar
Thread Starter
TECH Resident
iTrader: (23)
 
Joined: Jul 2005
Posts: 806
Likes: 0
From: memphis, tennessee
Default

yea thats what i figured he ment

oh well guess it will do without one then

thx for the input
Reply
Old Dec 18, 2007 | 05:10 PM
  #7  
bww3588's Avatar
12 Second Club
20 Year Member
iTrader: (49)
 
Joined: Sep 2005
Posts: 8,139
Likes: 10
From: Chillicothe/Lima, Ohio
Default

having it behind (after) the mufflers is better than not having one at all.
Reply
Old Dec 19, 2007 | 10:27 AM
  #8  
89Formulaws6's Avatar
12 Second Club
iTrader: (52)
 
Joined: Mar 2006
Posts: 699
Likes: 0
From: Michigan
Default

imo waste of time behind the mufflers you want it up front where all the exhaust energy is at its highest point, if ya know what i mean
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Dec 19, 2007 | 10:30 AM
  #9  
3rdgentug's Avatar
Thread Starter
TECH Resident
iTrader: (23)
 
Joined: Jul 2005
Posts: 806
Likes: 0
From: memphis, tennessee
Default

befor id posted this id asked a friend of mine that does exhausts setups, he said it would be pointless as well, i just wanted a few more opinions
Reply
Old Dec 19, 2007 | 10:23 PM
  #10  
bww3588's Avatar
12 Second Club
20 Year Member
iTrader: (49)
 
Joined: Sep 2005
Posts: 8,139
Likes: 10
From: Chillicothe/Lima, Ohio
Default

its not pointless if you are really adamant about it.


bottom line is, having it behind the mufflers is better than not having it at all.
Reply
Old Dec 20, 2007 | 10:43 PM
  #11  
jag42420's Avatar
Launching!
 
Joined: Sep 2006
Posts: 226
Likes: 0
From: Kentucky
Default

An H pipe helps equalize the exhaust pressures between the two banks of tubing as the hot gases and sound waves travel down the tubing. This, in effect, relieves the exhaust pressures as they travel through the H tubing, generally creating an increase in torque. This will also give an added sound reduction when the sound waves combine inside the H tubing.

An X pipe will actually help to scavenge exhaust pulses from one bank as the opposite exhaust pulse passes through the X, thus creating a vacuum effect at the valve, resulting in a cleaner burn in the cylinder. This generally equals added torque and, like the H pipe, a reduction in sound as the sound waves combine in the X pipe.

I'm more of an X pipe fan. Either way, they are typically installed between the tail of the tranny and the axle, before the mufflers.

Read this article: http://www.carcraft.com/techarticles...ion/index.html

Last edited by jag42420; Dec 20, 2007 at 10:49 PM.
Reply




All times are GMT -5. The time now is 03:50 PM.

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