Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com
 
Flowmaster
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 10-29-2013, 09:47 PM   #18
Craig B
 
Craig B's Avatar
 
Drives: 2013 1LE
Join Date: May 2013
Location: NJ
Posts: 609
Needed to update this. Now making 741 RWHP and still using 1-7/8 kooks headers, kooks off road pipes and stock 2.5 pipes. Thinking it would help some to move to a full 3 inch exhaust?
Craig B is offline   Reply With Quote
Old 10-29-2013, 09:55 PM   #19
KlugSS
Guest
 

Posts: n/a
Quote:
Originally Posted by Criag B View Post
Needed to update this. Now making 741 RWHP and still using 1-7/8 kooks headers, kooks off road pipes and stock 2.5 pipes. Thinking it would help some to move to a full 3 inch exhaust?
Nothing drastic. $/hp you will be disappointed.
  Reply With Quote
Old 10-30-2013, 02:23 AM   #20
JCunningham


 
JCunningham's Avatar
 
Drives: 2012 SIM 2SS/RS M6
Join Date: Jun 2013
Location: Attica, NY
Posts: 3,365
ARH makes a full 3" kit
__________________
2012 2SS/RS M6 SIM, Painted CarbonFlash rally stripes, Elite CC&CAOS 3.91 gears, dynoed by J&J Speedshop New Era ported TB, CAI intake, Apex Scoop, Heritage Grill, PatG CamMotion cam, 25%Fluidampr, Melling 296 Oil pump, Katech C5-R chain, Cloyes LS2 tensioner, PAC1205x springs and pushrods, Comp Cams trunions. ImprovedRacing oil baffle, crank scraper, Monster Billet release bearing support, 18" remote bleeder, ARH 1 7/8" LT headers w/cats, TWM full Shifter, BMR sways, trailing arms, toe rods, delrin cradle bushings, BK039 rear control bushings, front bushings. Solo Mach-XL exhaust 477hp 466tq
JCunningham is offline   Reply With Quote
Old 10-30-2013, 03:05 AM   #21
axis
Search Ninja
 
axis's Avatar
 
Drives: 2010 Black 2SS/RS A6
Join Date: Oct 2009
Location: Central Ark
Posts: 7,191
Quote:
Originally Posted by Criag B View Post
Needed to update this. Now making 741 RWHP and still using 1-7/8 kooks headers, kooks off road pipes and stock 2.5 pipes. Thinking it would help some to move to a full 3 inch exhaust?
At 700+whp, a full 3in exhaust would have already been on my car.
__________________
2010 Black 2SS/RS A6
Halltech CF 102 fed
GPI modded intake manifold
Bo (knows) White ported TB
Kooks LT's/ Dynomax VT
Pfadted (springs/sways)
Dyno tuned by Rhino and GPI

I once parallel parked a train.
axis is offline   Reply With Quote
Old 10-30-2013, 08:17 AM   #22
3rdgen3
10-bolt Destroyer
 
3rdgen3's Avatar
 
Drives: 2012 Camaro 2SS/RS - AGM, LS3/6M
Join Date: Jun 2012
Location: Canukistan
Posts: 674
Waste of money for true dual 3" on these cars.
__________________

-13.1 @ 109.7, 2.09 60' - BONE STOCK
-12.98 @ 110.6, 2.06 60' - K&N Intake & Muffler Deletes
-12.97 @ 112.4, 2.32 60' - 2" LT Headers w/ cats, CAI Intake, Magnaflow resonated X in place on stock X, Muffler Deletes
-12.68 @ 113.5, 2.01 60' - TSP 3" stainless catback w/ Tru-X, 305/35/18 MT ET Street Radial II's (no prep at the track)
-?.?? @ ???.??, ?.?? 60' - BTR Stage 4 Cam + Vortechc5@A2BMotorsport tune!
3rdgen3 is offline   Reply With Quote
Old 10-30-2013, 09:52 AM   #23
thahemp
Geek
 
thahemp's Avatar
 
Drives: 2012 Black LS3
Join Date: Jan 2012
Location: Derby, KS
Posts: 4,321
Quote:
Originally Posted by 3rdgen3 View Post
Waste of money for true dual 3" on these cars.
Says the guy without a 3" exhaust.
__________________
01000111011011110110111101100100001000000110110001 11010101100011011010110010000001110111011010010111 01000110100000100000011101000110100001101001011100 110010000001101111011011100110010100100001

x = ac97968bd3df8f968c8cd3df998a9c94d3df9c8a918bd3df9c 909c94df8c8a9c949a8dd3df92908b979a8ddf998a9c949a8d d3df8b968b8cd1
x = ~x
thahemp is offline   Reply With Quote
Old 10-30-2013, 04:09 PM   #24
Craig B
 
Craig B's Avatar
 
Drives: 2013 1LE
Join Date: May 2013
Location: NJ
Posts: 609
Quote:
Originally Posted by 3rdgen3 View Post
Waste of money for true dual 3" on these cars.
Funny u say that because a guy that dyno's 100's of Camaro's told me he never sees any gains from cars that switched to 3inch exhaust. He has told me when your over 800 +rwhp then it's worth it. Has anyone done any back to back testing switching the 2.5 to 3 on the dyno??
Craig B is offline   Reply With Quote
Old 10-30-2013, 04:36 PM   #25
thahemp
Geek
 
thahemp's Avatar
 
Drives: 2012 Black LS3
Join Date: Jan 2012
Location: Derby, KS
Posts: 4,321
Quote:
Originally Posted by Criag B View Post
Funny u say that because a guy that dyno's 100's of Camaro's told me he never sees any gains from cars that switched to 3inch exhaust. He has told me when your over 800 +rwhp then it's worth it. Has anyone done any back to back testing switching the 2.5 to 3 on the dyno??
Everything I have ever seen says you won't gain much of anything going to a 3". I choose to look at it differently. You don't really lose anything by going with a 3" exhaust either. I think the 3" catbacks sound a LOT better than any of the 2.5" I have heard.
__________________
01000111011011110110111101100100001000000110110001 11010101100011011010110010000001110111011010010111 01000110100000100000011101000110100001101001011100 110010000001101111011011100110010100100001

x = ac97968bd3df8f968c8cd3df998a9c94d3df9c8a918bd3df9c 909c94df8c8a9c949a8dd3df92908b979a8ddf998a9c949a8d d3df8b968b8cd1
x = ~x
thahemp is offline   Reply With Quote
Old 10-30-2013, 09:12 PM   #26
axis
Search Ninja
 
axis's Avatar
 
Drives: 2010 Black 2SS/RS A6
Join Date: Oct 2009
Location: Central Ark
Posts: 7,191
Quote:
Originally Posted by Criag B View Post
Funny u say that because a guy that dyno's 100's of Camaro's told me he never sees any gains from cars that switched to 3inch exhaust. He has told me when your over 800 +rwhp then it's worth it. Has anyone done any back to back testing switching the 2.5 to 3 on the dyno??
While the 2.5in pipes can handle 700+whp, at that power level, a 3in exhaust will surely help. Think of it another way, Your engine is making around 900 crank hp. Tell me that doesn't deserve a 3in exhaust.
__________________
2010 Black 2SS/RS A6
Halltech CF 102 fed
GPI modded intake manifold
Bo (knows) White ported TB
Kooks LT's/ Dynomax VT
Pfadted (springs/sways)
Dyno tuned by Rhino and GPI

I once parallel parked a train.
axis is offline   Reply With Quote
Old 10-30-2013, 09:23 PM   #27
Craig B
 
Craig B's Avatar
 
Drives: 2013 1LE
Join Date: May 2013
Location: NJ
Posts: 609
Quote:
Originally Posted by axis View Post
While the 2.5in pipes can handle 700+whp, at that power level, a 3in exhaust will surely help. Think of it another way, Your engine is making around 900 crank hp. Tell me that doesn't deserve a 3in exhaust.
I would agree, hell back in the day a SBC with anything over 500 hp always got 3 inch pipe on it.
Craig B is offline   Reply With Quote
Old 10-30-2013, 09:31 PM   #28
axis
Search Ninja
 
axis's Avatar
 
Drives: 2010 Black 2SS/RS A6
Join Date: Oct 2009
Location: Central Ark
Posts: 7,191
Quote:
Originally Posted by Criag B View Post
I would agree, hell back in the day a SBC with anything over 500 hp always got 3 inch pipe on it.
I agree but I wouldn't hesitate to leave the stock 2.5in piping on a 500+whp car. Once you're boosted and pushing well over 600whp, you NEED a bigger exhaust.
__________________
2010 Black 2SS/RS A6
Halltech CF 102 fed
GPI modded intake manifold
Bo (knows) White ported TB
Kooks LT's/ Dynomax VT
Pfadted (springs/sways)
Dyno tuned by Rhino and GPI

I once parallel parked a train.
axis is offline   Reply With Quote
Old 10-30-2013, 10:07 PM   #29
grocerygetter
instigator
 
grocerygetter's Avatar
 
Drives: Black on black 2009 C6
Join Date: Jan 2010
Location: 72034
Posts: 3,966
So U telling me I need to try headers and a full 3"? Lol . Killin me smalls.
__________________
-John S.

2014 GMC CC Z71, 2009 C6 vette (672/639 at the wheel and less than 3300lbs)
2010 Camaro 2ss/rs---SOLD 4/15/14
-654whp with a few cosmetic things, Pfadt suspension, Vortech, CircleD, GPI ss3 vvt bump stick, gears, stuff in between,18" TSW N'rings for drag duty, 20" Forgestar F14s for street.

Thanks to:
Tony@ dv8motoring
rhino@ Gwatney Chevrolet/GPI Jacksonville AR
TCAudio in Benton AR
grocerygetter is offline   Reply With Quote
Old 10-30-2013, 10:40 PM   #30
thahemp
Geek
 
thahemp's Avatar
 
Drives: 2012 Black LS3
Join Date: Jan 2012
Location: Derby, KS
Posts: 4,321
Quote:
Originally Posted by grocerygetter View Post
So U telling me I need to try headers and a full 3"? Lol . Killin me smalls.
Hell yeah! If you're doing headers for 10 hp and sound, then you might as well throw a 3" on there too!
__________________
01000111011011110110111101100100001000000110110001 11010101100011011010110010000001110111011010010111 01000110100000100000011101000110100001101001011100 110010000001101111011011100110010100100001

x = ac97968bd3df8f968c8cd3df998a9c94d3df9c8a918bd3df9c 909c94df8c8a9c949a8dd3df92908b979a8ddf998a9c949a8d d3df8b968b8cd1
x = ~x
thahemp is offline   Reply With Quote
Old 10-30-2013, 11:57 PM   #31
grocerygetter
instigator
 
grocerygetter's Avatar
 
Drives: Black on black 2009 C6
Join Date: Jan 2010
Location: 72034
Posts: 3,966
I think headers are a stretch enough. I like my no drone 2.5" set up.
__________________
-John S.

2014 GMC CC Z71, 2009 C6 vette (672/639 at the wheel and less than 3300lbs)
2010 Camaro 2ss/rs---SOLD 4/15/14
-654whp with a few cosmetic things, Pfadt suspension, Vortech, CircleD, GPI ss3 vvt bump stick, gears, stuff in between,18" TSW N'rings for drag duty, 20" Forgestar F14s for street.

Thanks to:
Tony@ dv8motoring
rhino@ Gwatney Chevrolet/GPI Jacksonville AR
TCAudio in Benton AR
grocerygetter is offline   Reply With Quote
Old 10-31-2013, 12:18 AM   #32
thahemp
Geek
 
thahemp's Avatar
 
Drives: 2012 Black LS3
Join Date: Jan 2012
Location: Derby, KS
Posts: 4,321
Yeah mine drones horrible.
__________________
01000111011011110110111101100100001000000110110001 11010101100011011010110010000001110111011010010111 01000110100000100000011101000110100001101001011100 110010000001101111011011100110010100100001

x = ac97968bd3df8f968c8cd3df998a9c94d3df9c8a918bd3df9c 909c94df8c8a9c949a8dd3df92908b979a8ddf998a9c949a8d d3df8b968b8cd1
x = ~x
thahemp is offline   Reply With Quote
Old 10-31-2013, 04:58 PM   #33
axis
Search Ninja
 
axis's Avatar
 
Drives: 2010 Black 2SS/RS A6
Join Date: Oct 2009
Location: Central Ark
Posts: 7,191
Quote:
Originally Posted by grocerygetter View Post
So U telling me I need to try headers and a full 3"? Lol . Killin me smalls.
YES YOU DO.

I know a certain african land animal that thinks so too.
__________________
2010 Black 2SS/RS A6
Halltech CF 102 fed
GPI modded intake manifold
Bo (knows) White ported TB
Kooks LT's/ Dynomax VT
Pfadted (springs/sways)
Dyno tuned by Rhino and GPI

I once parallel parked a train.
axis is offline   Reply With Quote
Old 10-31-2013, 10:00 PM   #34
grocerygetter
instigator
 
grocerygetter's Avatar
 
Drives: Black on black 2009 C6
Join Date: Jan 2010
Location: 72034
Posts: 3,966
Geez. Gonna have to have Fields build me something though ... These catback prices are outrageous.
__________________
-John S.

2014 GMC CC Z71, 2009 C6 vette (672/639 at the wheel and less than 3300lbs)
2010 Camaro 2ss/rs---SOLD 4/15/14
-654whp with a few cosmetic things, Pfadt suspension, Vortech, CircleD, GPI ss3 vvt bump stick, gears, stuff in between,18" TSW N'rings for drag duty, 20" Forgestar F14s for street.

Thanks to:
Tony@ dv8motoring
rhino@ Gwatney Chevrolet/GPI Jacksonville AR
TCAudio in Benton AR
grocerygetter 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 12:15 AM.


Powered by vBulletin® Version 3.8.9 Beta 4
Copyright ©2000 - 2016, vBulletin Solutions, Inc.