Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com
 
Nickey Chicago
Go Back   Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com > Engine | Drivetrain | Powertrain Technical Discussions > Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons

Reply
 
Thread Tools
Old 05-23-2015, 02:16 PM   #1
chris'stransam
 
chris'stransam's Avatar
 
Drives: 2014 1le 1999WS6
Join Date: Jan 2015
Location: Micanopy Fl
Posts: 30
1-7/8 or 2" headers

I have a chance to buy some used Dyatech 1-7/8 headers , or do I buy 2" Texas speed headers for my 14 1le . What is the sound difference? How much difference in sound will it have over stock ?
chris'stransam is offline   Reply With Quote
Old 05-23-2015, 03:15 PM   #2
Homeless Man
Homeless Life Chose Me
 
Homeless Man's Avatar
 
Drives: LS3
Join Date: Nov 2014
Location: Streets of Philly
Posts: 1,376
I think they both sound the same but if there is any difference the 2icnch would be louder. Get 1 7/8 unless u plan on adding a ton of horsepower in the future then get 2inch
Homeless Man is offline   Reply With Quote
Old 05-23-2015, 03:53 PM   #3
Avenging Orange

 
Avenging Orange's Avatar
 
Drives: 2010 Inferno Orange 2SS/RS
Join Date: Apr 2010
Location: Clermont, IN
Posts: 1,321
2" is overkill. They will sound the same. And depending on what cat back you have will determine how much louder it will be.
__________________
2010 Inferno Orange 2SS/RS M6 Black Leather,Sun Roof, OBX Headers, Haltech CAI , non synthetic fluids, Mike Norris tuned 419/413
Avenging Orange: 37 years of not buying into the Hype........and damn proud of it!!
Avenging Orange is offline   Reply With Quote
Old 05-23-2015, 04:03 PM   #4
GONIF

 
GONIF's Avatar
 
Drives: 73 VETTE ,, 05 2500hd diesel,14 1LE
Join Date: Feb 2014
Location: The Left lane PHOENIX AZ
Posts: 1,533
THE 1/78 headers are going to fit better and won't need to be hammer fit. Power wise unless your FI or very seriously modded you wont see any more power with 2 inch over 1 7/8.
__________________
OLD GUY FLYING FAST AND LOW
GONIF is offline   Reply With Quote
Old 05-23-2015, 06:17 PM   #5
62nalide


 
62nalide's Avatar
 
Drives: 2013 SS
Join Date: May 2013
Location: DFW
Posts: 3,190
2" is NOT over kill at all they make more then the 1 7/8s even on bolt on cars
__________________
*RETIRED 2013 SS*
10.73 @ 127.03
ALL MOTOR

6th Gen on THE WORKS
62nalide is online now   Reply With Quote
Old 05-23-2015, 06:39 PM   #6
GONIF

 
GONIF's Avatar
 
Drives: 73 VETTE ,, 05 2500hd diesel,14 1LE
Join Date: Feb 2014
Location: The Left lane PHOENIX AZ
Posts: 1,533
Quote:
Originally Posted by 62nalide View Post
2" is NOT over kill at all they make more then the 1 7/8s even on bolt on cars
If ,and I say if , it won't make anymore power under 4500 rpms on a bolt on car ( factory cam) and even then it won't be more than 2 hp . And that would have to be without cats . With cats you just won't see any gains 2 inch over 1 7/8. . Now big cam ,ported heads and 2 inch headers do make a difference.
__________________
OLD GUY FLYING FAST AND LOW
GONIF is offline   Reply With Quote
Old 05-23-2015, 06:56 PM   #7
Jared91
 
Jared91's Avatar
 
Drives: 2011 Camaro SS/M6
Join Date: Dec 2013
Location: Pennsylvania, 15909
Posts: 181
2 > 1 7/8 Bottom line is they make more power. Do it right the first time.
__________________
2011 Ls3. Slp TSV2300. 8PSI. 3.4 Pulley. Livernois Twin Fuel Pump. Id850 Injectors. Slp 1 3/4 headers. CAI Cold Air Intake. 3inch exhaust. V-Maxx portted throttle body. Night Fury cam. Lpe 391 gears. Fj performence tune. 643rwhp 574rwtq
Jared91 is offline   Reply With Quote
Old 05-23-2015, 07:12 PM   #8
62nalide


 
62nalide's Avatar
 
Drives: 2013 SS
Join Date: May 2013
Location: DFW
Posts: 3,190
Quote:
Originally Posted by GONIF View Post
If ,and I say if , it won't make anymore power under 4500 rpms on a bolt on car ( factory cam) and even then it won't be more than 2 hp . And that would have to be without cats . With cats you just won't see any gains 2 inch over 1 7/8. . Now big cam ,ported heads and 2 inch headers do make a difference.
On bolt on cars they make the same hp/tq above 5k 2" makes more power so its really a no brainer just my 2 cents
__________________
*RETIRED 2013 SS*
10.73 @ 127.03
ALL MOTOR

6th Gen on THE WORKS
62nalide is online now   Reply With Quote
Old 05-23-2015, 08:15 PM   #9
MarylandSpeed



 
MarylandSpeed's Avatar
 
Drives: 2012 ZL1 & 2010 2SS/RS
Join Date: Jul 2009
Location: Maryland
Posts: 2,714
Size moves the powerband around. A smaller header will make more TQ down low because it pressurizes the exhaust gas faster. A bigger header will make more high end HP because it can more efficiently flow the maximum exhaust output of the engine. 1 7/8" is fine for most customers. Whatever you do..contact us @ the info/number below for an awesome deal.
__________________
www.marylandspeed.com * 443-730-9428 * Great Prices and Experienced Service!

MarylandSpeed is offline   Reply With Quote
Old 05-23-2015, 08:49 PM   #10
dustins2011
 
Drives: 2011 ss
Join Date: Feb 2015
Location: Minneapolis
Posts: 8
I have seen a million of these posts. What I have walked away after reading them all is 2 things. The size difference is a horse a piece as far as power assuming mostly stock. But if you ever supercharge or what ever you will want 2 inch.
dustins2011 is offline   Reply With Quote
Old 05-23-2015, 09:35 PM   #11
Homeless Man
Homeless Life Chose Me
 
Homeless Man's Avatar
 
Drives: LS3
Join Date: Nov 2014
Location: Streets of Philly
Posts: 1,376
I like that torque down low
Homeless Man is offline   Reply With Quote
Old 05-23-2015, 10:56 PM   #12
2010SSRSM6
SoCal C5 Family Member
 
2010SSRSM6's Avatar
 
Drives: My wife crazy with my C5 usage.
Join Date: Apr 2009
Location: SoCal
Posts: 6,189
Per Lou at ARH, you don't need 2" headers until you are over 1000 hp. There isn't enough gain to justify the size difference and added weight/headache going 2".


Sent from my iPhone using Tapatalk
__________________
Powered by Cunningham MotorSports
2010SSRSM6 is offline   Reply With Quote
Old 05-23-2015, 11:15 PM   #13
Jsafe17
 
Jsafe17's Avatar
 
Drives: 2010 2SS/RS 6spd LS3
Join Date: Jan 2015
Location: Oregon
Posts: 431
Here you go..

http://www.camaro5.com/forums/showthread.php?t=397184
Jsafe17 is offline   Reply With Quote
Old 05-24-2015, 12:08 AM   #14
62nalide


 
62nalide's Avatar
 
Drives: 2013 SS
Join Date: May 2013
Location: DFW
Posts: 3,190
2'' headers WONT hurt low-end torq though, but whatever floats your boat.
Heck the fastest BOLT-ON car CamaroJT runs 2" headers stock cam stock heads 11.31 @ 119mph, he tested both sizes and ran faster with 2" headers (TSP)
__________________
*RETIRED 2013 SS*
10.73 @ 127.03
ALL MOTOR

6th Gen on THE WORKS
62nalide is online now   Reply With Quote
Old 05-25-2015, 08:31 PM   #15
LTRS777
 
LTRS777's Avatar
 
Drives: 2014 Saleen 620 White Label #14-011
Join Date: Dec 2014
Location: AL
Posts: 294
Quote:
Originally Posted by 62nalide View Post
2'' headers WONT hurt low-end torq though, but whatever floats your boat.
Heck the fastest BOLT-ON car CamaroJT runs 2" headers stock cam stock heads 11.31 @ 119mph, he tested both sizes and ran faster with 2" headers (TSP)

Its already been proven in back to back dyno testing... On a bone stock camaro ss the 2" made more power, without any loss down low, and makes exponentially more power with any mods. I dont know how all the jre and similar tests arent stickies or common knowledge at this point.
__________________
'14 Saleen 620 White Label #14-011
LTRS777 is online now   Reply With Quote
Old 05-25-2015, 08:38 PM   #16
dcpatters
 
Drives: 2015 Camaro SS 1LE
Join Date: Dec 2014
Location: Irvine, CA
Posts: 177
I wanted to install 2" headers, but after talking with TSP about fitment, I went 1 7/8". It wasn't that installing them was impossible, just the apprehension of a bang here, a dimple here and so on.
dcpatters is offline   Reply With Quote
Old 05-25-2015, 09:47 PM   #17
LTRS777
 
LTRS777's Avatar
 
Drives: 2014 Saleen 620 White Label #14-011
Join Date: Dec 2014
Location: AL
Posts: 294
Quote:
Originally Posted by dcpatters View Post
I wanted to install 2" headers, but after talking with TSP about fitment, I went 1 7/8". It wasn't that installing them was impossible, just the apprehension of a bang here, a dimple here and so on.
Lots have had 0 fitment issue, some have had some. The point isnt about TSP 2" headers, but 2 vs 1 7/8 in general. Not to mention TSP revised their 2" to fix any issues they had to begin with.
__________________
'14 Saleen 620 White Label #14-011
LTRS777 is online now   Reply With Quote
Old 05-25-2015, 10:05 PM   #18
dcpatters
 
Drives: 2015 Camaro SS 1LE
Join Date: Dec 2014
Location: Irvine, CA
Posts: 177
Quote:
Originally Posted by LTRS777 View Post
Lots have had 0 fitment issue, some have had some. The point isnt about TSP 2" headers, but 2 vs 1 7/8 in general. Not to mention TSP revised their 2" to fix any issues they had to begin with.
Some have, some don't, but whatever. And my point wasn't about TSP headers, just a comment about possible installation issues if OP went with 2" headers.

What this board needs a big giant ****ing sticky section, one for Cold Air Intakes, another for headers, and the other for exhaust. They're constant, like the universe and human stupidity.
dcpatters is offline   Reply With Quote
Old 05-25-2015, 10:18 PM   #19
62nalide


 
62nalide's Avatar
 
Drives: 2013 SS
Join Date: May 2013
Location: DFW
Posts: 3,190
Quote:
Originally Posted by dcpatters View Post
Some have, some don't, but whatever. And my point wasn't about TSP headers, just a comment about possible installation issues if OP went with 2" headers.

What this board needs a big giant ****ing sticky section, one for Cold Air Intakes, another for headers, and the other for exhaust. They're constant, like the universe and human stupidity.
For what? The most popular answer on here is pretty wrong so why bother?
Let people pick what they want even thought it isn't the best part. People stop taking advice from those who have tried them all anyways.
__________________
*RETIRED 2013 SS*
10.73 @ 127.03
ALL MOTOR

6th Gen on THE WORKS
62nalide is online now   Reply With Quote
Old 05-26-2015, 07:45 AM   #20
WHAMMO

 
WHAMMO's Avatar
 
Drives: LS2 Fbody
Join Date: Apr 2012
Location: Canada
Posts: 1,360
Fitment was great on mine. Just some light hammering the heatshield on drivers side. Other than that they slide in easily. Brand is Stainless Works.

2" make the most hp and torque. No loss anywhere.
__________________
4th Gen SS/LS2 SB/LS3 heads/N20
WHAMMO is offline   Reply With Quote
Old 05-26-2015, 07:46 AM   #21
WHAMMO

 
WHAMMO's Avatar
 
Drives: LS2 Fbody
Join Date: Apr 2012
Location: Canada
Posts: 1,360
2" headers ^^
__________________
4th Gen SS/LS2 SB/LS3 heads/N20
WHAMMO is offline   Reply With Quote
Old 05-26-2015, 09:10 AM   #22
vroomapunk
[COTW 5/12/14]
 
vroomapunk's Avatar
 
Drives: 2012 CRT NF Cammed 2SS/RS
Join Date: Oct 2011
Location: New Orleans, Louisiana
Posts: 5,643
Quote:
Originally Posted by 62nalide View Post
For what? The most popular answer on here is pretty wrong so why bother?
Let people pick what they want even thought it isn't the best part. People stop taking advice from those who have tried them all anyways.
__________________
vroomapunk is online now   Reply With Quote
Old 05-26-2015, 01:50 PM   #23
GONIF

 
GONIF's Avatar
 
Drives: 73 VETTE ,, 05 2500hd diesel,14 1LE
Join Date: Feb 2014
Location: The Left lane PHOENIX AZ
Posts: 1,533
First off it is nice to know that TSP has redesigned their 2 inch headers to fit with out a hammer to dimple them. And yes 2 inch headers will make more power than1 7/8 headers ,all be it very slightly on a bolt on car . But I would like to see a test done with HF cats . IMHO if you intend to run just bolt on and HF cats ,it is a moot point . And even if TSP has redesigned the 2 inchers it is going to be a tight fit not only with the steering and frame but also with the plug wires .
__________________
OLD GUY FLYING FAST AND LOW
GONIF is offline   Reply With Quote
Old 05-26-2015, 02:29 PM   #24
Avenging Orange

 
Avenging Orange's Avatar
 
Drives: 2010 Inferno Orange 2SS/RS
Join Date: Apr 2010
Location: Clermont, IN
Posts: 1,321
Quote:
Originally Posted by 62nalide View Post
For what? The most populait answer on here is pretty wrong so why bother?
Let people pick what they want even thought it isn't the best part. People stop taking advice from those who have tried them all anyways.
So 2 3/8" would be even better? Hell, lets round it off to an even 3".
The latest greatest biggest is not always best. But there will always be those who believe so.
__________________
2010 Inferno Orange 2SS/RS M6 Black Leather,Sun Roof, OBX Headers, Haltech CAI , non synthetic fluids, Mike Norris tuned 419/413
Avenging Orange: 37 years of not buying into the Hype........and damn proud of it!!
Avenging Orange is offline   Reply With Quote
Old 05-26-2015, 02:36 PM   #25
SixSpeeder
 
SixSpeeder's Avatar
 
Drives: 2015 Camaro SS
Join Date: Jan 2015
Location: Seattle, WA
Posts: 148
Quote:
Originally Posted by 62nalide View Post
2'' headers WONT hurt low-end torq though, but whatever floats your boat.
Heck the fastest BOLT-ON car CamaroJT runs 2" headers stock cam stock heads 11.31 @ 119mph, he tested both sizes and ran faster with 2" headers (TSP)
I'm not questioning that you have a fast car or a lot of experience/knowledge of this platform, but Camaro's do not change the laws of physics. There is such a thing as too big of an exhaust pipe, and the low end will be effected by an exhaust pipe diameter that is optimized for high rpm HP, there's no such thing as a system that is perfectly effective for both without the use of valves:

"You would think that once you have maxed out on the engine's breathing ability (volumetric efficiency), the torque or power curve and volumetric efficiency would be identical. They are not. Why? Flow quality on the intake side and inefficient removal of exhaust gases out of the cylinder are what separates a winner from the car placing second in a race. The people that make that extra winning power are the ones that pay attention to ensuring that intake flow quality and cylinder exhaust gas removal are optimized, as well as working on cylinder filling (flow volume or bulk flow).

No exhaust system is ideal for all applications. At different RPMs, different sized exhaust tubes are more desirable than others. For instance, at low RPMs you would want a small diameter exhaust pipe to give some backpressure and increase low rpm torque, while at high RPMs you would want a large diameter exhaust pipe to be able to let out the exhaust gases quickly and easily, but keeping very little amount of backpressure. But it is not a direct RPM/exhaust size relationship that is only important, but it varies with manifold pressure as well. Both works together to produce exhaust pressure.

Depending on their design and purpose, all exhaust systems compromise something to achieve something else. Before manufacturing an exhaust or modifying existing stock to increase performance, it is critical to determine what kind of performance you want.

Do you want the best possible low-end and mid-range power or maximum top-end power?
You have to investigate the relationship between torque and horsepower
Do you want a cosmetic exhaust system or a performance exhaust system?

Without careful thought about these variables, an exhaust system can produce very disappointing results. On the other hand, a properly designed and tuned exhaust system that is well-matched to the engine can provide outstanding power gains.
A very common mistake made by some performance people is the selection of an exhaust system with pipes that are too large in diameter for their engine's state of tune. Bigger is not necessarily better and is often worse."


http://www.formula1-dictionary.net/e...road_perf.html
__________________
2015 Summit White Camaro 1SS 6-Speed: NPP Exhaust, RS Package, Short Shifter, Nav

SixSpeeder is offline   Reply With Quote
 
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not 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

Forum Jump


All times are GMT -5. The time now is 09:02 AM.


Powered by vBulletin® Version 3.8.9 Beta 4
Copyright ©2000 - 2015, vBulletin Solutions, Inc.