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

Cut Out Question!

Thread Tools
 
Search this Thread
 
Old Oct 15, 2008 | 09:10 PM
  #21  
SmokedOutZ28's Avatar
11 Second Club
iTrader: (35)
 
Joined: Dec 2004
Posts: 2,163
Likes: 0
From: NW Chicago burbs
Default

I picked up 11hp/11tq over my Hooker catback.

Obviously gains will vary between exhaust systems, dynos used & Motor Setups.
Reply
Old Oct 15, 2008 | 09:48 PM
  #22  
TORCHD 02 TA's Avatar
Thread Starter
TECH Senior Member
iTrader: (39)
 
Joined: May 2006
Posts: 7,883
Likes: 3
From: Chicago
Default

I will prolly have it tuned for when the cut out is opened
Reply
Old Oct 16, 2008 | 04:48 AM
  #23  
chrs1313's Avatar
10 Second Club
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (24)
 
Joined: Feb 2005
Posts: 5,703
Likes: 13
Default

Originally Posted by TORCHD 02 TA
I will prolly have it tuned for when the cut out is opened
that is what i had speed do with mine...

i would say anywhere from 6-8hp gain...

Last edited by chrs1313; Oct 20, 2008 at 04:40 AM.
Reply
Old Oct 16, 2008 | 07:19 AM
  #24  
slow trap's Avatar
TECH Addict
iTrader: (22)
 
Joined: Sep 2004
Posts: 2,639
Likes: 0
From: tennessee
Default

i would guess 8-12 hp also. my car actually picks up 10 rwtq with the cutout open but that is also on a 408 and as stated setups vary and so does gains. it should be worth trying.the afr will probably change very little,probably not worth having to retune but that is just my opinion.
Reply
Old Oct 16, 2008 | 09:14 AM
  #25  
TORCHD 02 TA's Avatar
Thread Starter
TECH Senior Member
iTrader: (39)
 
Joined: May 2006
Posts: 7,883
Likes: 3
From: Chicago
Default

Good deal, thanks for the info and help guys!
Reply
Old Oct 16, 2008 | 06:10 PM
  #26  
TORCHD 02 TA's Avatar
Thread Starter
TECH Senior Member
iTrader: (39)
 
Joined: May 2006
Posts: 7,883
Likes: 3
From: Chicago
Default

Now does anyone have a used 3" DMH cut out for sale?
Reply
Old Oct 17, 2008 | 11:31 AM
  #27  
TORCHD 02 TA's Avatar
Thread Starter
TECH Senior Member
iTrader: (39)
 
Joined: May 2006
Posts: 7,883
Likes: 3
From: Chicago
Default

no one has a DMH 3" cut out for sale????
Reply
Old Oct 19, 2008 | 11:26 AM
  #28  
TORCHD 02 TA's Avatar
Thread Starter
TECH Senior Member
iTrader: (39)
 
Joined: May 2006
Posts: 7,883
Likes: 3
From: Chicago
Default

Just doing another bump to see if anyone has a 3" DMH E-CutOut For Sale?

Thanks
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

10 Reasons Daily Driving a Swap Project SUCKS! (& 1 Reason to Do It Anyway)

 Michael S. Palmer
story-1

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

 Brett Foote
story-2

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-3

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-4

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-5

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

 Verdad Gallardo
story-6

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

 Pouria Savadkouei
story-7

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

 Verdad Gallardo
story-8

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-9

Top 10 Most Powerful Chevy Trucks Ever Made!

 
Old Oct 19, 2008 | 11:32 AM
  #29  
OIF1VET's Avatar
11 Second Club
iTrader: (54)
 
Joined: Mar 2006
Posts: 835
Likes: 2
From: Muskegon, MI
Default

Originally Posted by TORCHD 02 TA
Just doing another bump to see if anyone has a 3" DMH E-CutOut For Sale?

Thanks
Saw one in the for sale section a couple days ago.
Reply
Old Oct 19, 2008 | 11:55 AM
  #30  
bad6as's Avatar
11 Second Club
iTrader: (17)
 
Joined: Mar 2005
Posts: 4,796
Likes: 0
From: Maryland
Default

i did have a slp loudmouth II cat back, mabde 388 on the dyno. then i sold it and got a dmh cut out, and a moroso sprial flow muffler, then i used stock exhaust pipe to dump it it the top of the axle. i gained 30rwhp with the cut out open, but it was still down 10 compared to the lm II
Reply
Old Oct 19, 2008 | 01:19 PM
  #31  
TORCHD 02 TA's Avatar
Thread Starter
TECH Senior Member
iTrader: (39)
 
Joined: May 2006
Posts: 7,883
Likes: 3
From: Chicago
Default

Originally Posted by OIF1VET
Saw one in the for sale section a couple days ago.
Yeah i think i saw the same one for sale. Was EVOWAKE selling it? If soo i snooze i lose
Reply
Old Oct 19, 2008 | 02:09 PM
  #32  
01ssreda4's Avatar
TECH Senior Member
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (96)
 
Joined: Aug 2007
Posts: 24,241
Likes: 89
From: Turnin' Wrenches Infractions: 005
Default

cutout = dumptruck with no muffler sound.
Reply
Old Oct 19, 2008 | 10:43 PM
  #33  
TORCHD 02 TA's Avatar
Thread Starter
TECH Senior Member
iTrader: (39)
 
Joined: May 2006
Posts: 7,883
Likes: 3
From: Chicago
Default

Originally Posted by 01ssreda4
cutout = dumptruck with no muffler sound.
not with a cam
Reply
Old Oct 19, 2008 | 10:54 PM
  #34  
01ssreda4's Avatar
TECH Senior Member
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (96)
 
Joined: Aug 2007
Posts: 24,241
Likes: 89
From: Turnin' Wrenches Infractions: 005
Default

Originally Posted by TORCHD 02 TA
not with a cam
well the cams i have heard before and after have dramatically changed an exhaust's sound. i could imagine a cut-out with a cam not sounding much different then a top fuel dragster only slightly tamer.
Reply
Old Oct 19, 2008 | 10:59 PM
  #35  
TORCHD 02 TA's Avatar
Thread Starter
TECH Senior Member
iTrader: (39)
 
Joined: May 2006
Posts: 7,883
Likes: 3
From: Chicago
Default

Originally Posted by 01ssreda4
well the cams i have heard before and after have dramatically changed an exhaust's sound. i could imagine a cut-out with a cam not sounding much different then a top fuel dragster only slightly tamer.
that equals
Reply
Old Oct 20, 2008 | 12:21 AM
  #36  
camcamaro1991's Avatar
Launching!
iTrader: (18)
 
Joined: Jan 2006
Posts: 265
Likes: 0
From: DFW
Thumbs up DMH's

https://ls1tech.com/forums/showthrea...ght=dmh+cutout

heres my old thread of the DMH's

I gained 6hp 8tq open.
PS headers, PS ORY, DMH duals, i have CME after
the open cutouts with my cam, sounds like i am asking for it.
closed cutouts pretty quiet.
Reply
Old Oct 20, 2008 | 04:41 AM
  #37  
chrs1313's Avatar
10 Second Club
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (24)
 
Joined: Feb 2005
Posts: 5,703
Likes: 13
Default

Originally Posted by camcamaro1991
https://ls1tech.com/forums/showthrea...ght=dmh+cutout

heres my old thread of the DMH's

I gained 6hp 8tq open.
PS headers, PS ORY, DMH duals, i have CME after
the open cutouts with my cam, sounds like i am asking for it.
closed cutouts pretty quiet.
so what do i win...jonas just send me a pm next time...much faster lol
Reply




All times are GMT -5. The time now is 01:19 PM.

story-0
10 Reasons Daily Driving a Swap Project SUCKS! (& 1 Reason to Do It Anyway)

Slideshow: 10 reasons daily-driving a swap project might not be for you. Or is it?

By Michael S. Palmer | 2026-06-17 09:39:05


VIEW MORE
story-1
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-2
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-06-18 10:26:23


VIEW MORE
story-3
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-4
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-5
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-6
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-7
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-8
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-9
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