Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com
 
Redline Goods
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

Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons Bolt-Ons | Intakes | Exhaust

Reply
 
Thread Tools
Old 02-18-2013, 04:03 PM   #1
Ram-Blood
 
Ram-Blood's Avatar
 
Drives: 2010 Camaro 2SS M6
Join Date: Jul 2012
Location: Greensboro NC
Posts: 26
First Dyno results little Disappointed

As the title says went to get car Dynoed and was lil disappointed with the Dyno results. 393RWHP and 388RWTQ
List of mods i had done 3.91 gears, fast lane cold air intake, Jba mid pipes and muffler delete. I know long tubes were the best way to go but i had to have the gears.
Ram-Blood is offline   Reply With Quote
Old 02-18-2013, 04:19 PM   #2
Irnwkrkev
 
Irnwkrkev's Avatar
 
Drives: 2011 SS/RS LS3
Join Date: Oct 2010
Location: Miami
Posts: 474
Those numbers are nothing to be disappointed about. The gears won't show any gain on the dyno. The muffler delete doesn't do much either. So for an intake and mid pipes you're doing great power wise. Install an under drive pulley and you'll break 400!
Irnwkrkev is offline   Reply With Quote
Old 02-18-2013, 04:23 PM   #3
rdblan2

 
Drives: 2SS RS
Join Date: Mar 2010
Location: MD
Posts: 1,223
There's a lot of debate here about losing power with the muffler delete. Some folks say you need the back pressure.

I think your numbers are good for the minor mods you've done. You won't pick up HP with gears, you'll just feel it differently.

Did you tune after your mods?
__________________
Livernois 2C cam and tune, LS3 conversion, Roto-Fab intake, Kooks headers, DSS driveshaft and axles, BMR suspension parts, VMax ported throttle body, Whipple blower. (623hp).
rdblan2 is offline   Reply With Quote
Old 02-18-2013, 04:31 PM   #4
DuskSS
Bayou City Muscle Cars
 
DuskSS's Avatar
 
Drives: 2013 2SS Dusk Edition
Join Date: Jan 2013
Location: Houston Texas
Posts: 1,473
Quote:
Originally Posted by Ram-Blood View Post
As the title says went to get car Dynoed and was lil disappointed with the Dyno results. 393RWHP and 388RWTQ
List of mods i had done 3.91 gears, fast lane cold air intake, Jba mid pipes and muffler delete. I know long tubes were the best way to go but i had to have the gears.
you are disappointed in 393 with basically just a CAI? the other stuff has been proven to make no HP gains at all.
so that means to get that out of a CAI is really good.
ill take that engine any day.
__________________
2013 2SS Dusk Edition
Dual Mode Exhaust CAI Inc CAI
Lethal Racing Stage IV
510.7rwhp 477fpt
Oracle Lighting throughout
DuskSS is offline   Reply With Quote
Old 02-18-2013, 04:31 PM   #5
Ram-Blood
 
Ram-Blood's Avatar
 
Drives: 2010 Camaro 2SS M6
Join Date: Jul 2012
Location: Greensboro NC
Posts: 26
Yes those numbers were with a tune. I know you get what you pay for so im going to get me some seat time at the track when my drag radials come in and hopfully that will cheer me up
Ram-Blood is offline   Reply With Quote
Old 02-18-2013, 04:35 PM   #6
Bo White
Account Suspended
 
Drives: 2010 Summit White 1SS
Join Date: Feb 2012
Location: Vance Alabama
Posts: 2,418
Your dead on if not a touch better than what I would expect on the average dyno. Im at 411/414 with intake/LTs/tune so there ya go.
Bo White is offline   Reply With Quote
Old 02-18-2013, 04:44 PM   #7
Ram-Blood
 
Ram-Blood's Avatar
 
Drives: 2010 Camaro 2SS M6
Join Date: Jul 2012
Location: Greensboro NC
Posts: 26
From what im hearing i am on par with every body else. Now I dont feel to bad
Ram-Blood is offline   Reply With Quote
Old 02-18-2013, 04:52 PM   #8
matt55

 
matt55's Avatar
 
Drives: 2010 SS AMB , mini revo
Join Date: Aug 2008
Location: Raleigh NC
Posts: 897
Quote:
Originally Posted by rdblan2 View Post
There's a lot of debate here about losing power with the muffler delete.
Wait what , a straight through pipe makes more hp than a straight through pipe?
__________________
Vararam , OBX and tune . 411/414 dynojet.
matt55 is offline   Reply With Quote
Old 02-18-2013, 04:53 PM   #9
DuskSS
Bayou City Muscle Cars
 
DuskSS's Avatar
 
Drives: 2013 2SS Dusk Edition
Join Date: Jan 2013
Location: Houston Texas
Posts: 1,473
Quote:
Originally Posted by matt55 View Post
Wait what , a straight through pipe makes more hp than a straight through pipe?
mufflers are not straight through.
and backpressure has been proven to be needed.
some open systems actually lose HP..
as Dumps did on the older stangs..
__________________
2013 2SS Dusk Edition
Dual Mode Exhaust CAI Inc CAI
Lethal Racing Stage IV
510.7rwhp 477fpt
Oracle Lighting throughout
DuskSS is offline   Reply With Quote
Old 02-18-2013, 05:13 PM   #10
thahemp
Geek
 
thahemp's Avatar
 
Drives: 2012 Black LS3
Join Date: Jan 2012
Location: Derby, KS
Posts: 4,032
Quote:
Originally Posted by jasonpope2003 View Post
mufflers are not straight through.
and backpressure has been proven to be needed.
some open systems actually lose HP..
as Dumps did on the older stangs..
What is the back pressure needed for, and how much older of a stang? I cordially disagree with you here sir.
__________________
01000111011011110110111101100100001000000110110001 11010101100011011010110010000001110111011010010111 01000110100000100000011101000110100001101001011100 110010000001101111011011100110010100100001

x = ac97968bd3df8f968c8cd3df998a9c94d3df9c8a918bd3df9c 909c94df8c8a9c949a8dd3df92908b979a8ddf998a9c949a8d d3df8b968b8cd1
x = ~x
thahemp is online now   Reply With Quote
Old 02-18-2013, 05:27 PM   #11
thahemp
Geek
 
thahemp's Avatar
 
Drives: 2012 Black LS3
Join Date: Jan 2012
Location: Derby, KS
Posts: 4,032
Quote:
Originally Posted by Ram-Blood View Post
As the title says went to get car Dynoed and was lil disappointed with the Dyno results. 393RWHP and 388RWTQ
List of mods i had done 3.91 gears, fast lane cold air intake, Jba mid pipes and muffler delete. I know long tubes were the best way to go but i had to have the gears.
BTW I like your numbers. You've got the same intake as I do, and it's a beast. I'm gonna get my setup tuned here pretty soon.
__________________
01000111011011110110111101100100001000000110110001 11010101100011011010110010000001110111011010010111 01000110100000100000011101000110100001101001011100 110010000001101111011011100110010100100001

x = ac97968bd3df8f968c8cd3df998a9c94d3df9c8a918bd3df9c 909c94df8c8a9c949a8dd3df92908b979a8ddf998a9c949a8d d3df8b968b8cd1
x = ~x
thahemp is online now   Reply With Quote
Old 02-18-2013, 05:28 PM   #12
Bo White
Account Suspended
 
Drives: 2010 Summit White 1SS
Join Date: Feb 2012
Location: Vance Alabama
Posts: 2,418
Cam design mainly on the overlap and exhaust lobe profile depend on a given amount of back pressure. Street cams and race cams alike are profiled accordingly.
Bo White is offline   Reply With Quote
Old 02-18-2013, 05:32 PM   #13
mdub76
 
mdub76's Avatar
 
Drives: 2010 2ss/RS IOM GFX 21" rim M6
Join Date: Jul 2011
Location: virginia
Posts: 132
Not bad at all. I dynoed 409/411 with lt/cai/catback and hi flos. Recently did the rear suspension and 3.91's. Gear's by far the best mod hands down. Mine was also tuned. Kinda low on the base dyno with only 355 hp. But i pick up 55 hp so maybe my dyno is just low
mdub76 is offline   Reply With Quote
Old 02-18-2013, 05:41 PM   #14
Ram-Blood
 
Ram-Blood's Avatar
 
Drives: 2010 Camaro 2SS M6
Join Date: Jul 2012
Location: Greensboro NC
Posts: 26
Mdub76 what rear suspension upgrades did you do. I was looking into some rear control arms and bushings but i hate spending money on stuff that i really don't need
__________________
Ride or Die Bowtie 4 Life
Ram-Blood is offline   Reply With Quote
Old 02-18-2013, 05:42 PM   #15
litle88
V8 Lounge member #2
 
litle88's Avatar
 
Drives: 2001 Ws6
Join Date: Sep 2009
Location: Burbank,IL
Posts: 6,343
Here we go with the back pressure lol.
__________________
01 Ws6, m6, ASC#618 of 1583,40k Miles,shortblock built by AES the rest built by me,Ls3 416,FAST 102, NW102,LPE Ls3 heads

Join us:
https://www.facebook.com/groups/5138...3848358733509/
litle88 is offline   Reply With Quote
Old 02-18-2013, 05:47 PM   #16
thahemp
Geek
 
thahemp's Avatar
 
Drives: 2012 Black LS3
Join Date: Jan 2012
Location: Derby, KS
Posts: 4,032
Quote:
Originally Posted by Bo White View Post
Cam design mainly on the overlap and exhaust lobe profile depend on a given amount of back pressure. Street cams and race cams alike are profiled accordingly.
Bo I see where you're coming from, but I don't see how a muffler delete plays into this equation.

If the exhaust valve timing was figured with X amount of back pressure on the stock cam, which he has, then reducing back pressure is only going to increase velocity and increase scavenging unless he goes to 3", or larger primaries, or something of that nature. Physically, the diameters haven't changed. Reducing pressure in the same pathway shouldn't diminish exhaust velocity... something else would have to be at play.
__________________
01000111011011110110111101100100001000000110110001 11010101100011011010110010000001110111011010010111 01000110100000100000011101000110100001101001011100 110010000001101111011011100110010100100001

x = ac97968bd3df8f968c8cd3df998a9c94d3df9c8a918bd3df9c 909c94df8c8a9c949a8dd3df92908b979a8ddf998a9c949a8d d3df8b968b8cd1
x = ~x
thahemp is online now   Reply With Quote
Old 02-18-2013, 05:49 PM   #17
newagemuscle
Philippians 4:13
 
newagemuscle's Avatar
 
Drives: SLP Supercharged LS3
Join Date: Aug 2009
Location: The Motor City - Michigan
Posts: 2,518
Quote:
Originally Posted by Ram-Blood View Post
As the title says went to get car Dynoed and was lil disappointed with the Dyno results. 393RWHP and 388RWTQ
List of mods i had done 3.91 gears, fast lane cold air intake, Jba mid pipes and muffler delete. I know long tubes were the best way to go but i had to have the gears.
Where do you think you should be? 3:91 gears are not going to give you more rwhp. You basically have a CAI, with some minor exhaust work. Do you have a tune? Even if you do have a those numbers are respectable.
__________________
newagemuscle is offline   Reply With Quote
Old 02-18-2013, 05:56 PM   #18
Frid


 
Frid's Avatar
 
Drives: '11 Camaro 2SS/RS LS3
Join Date: Jan 2012
Location: Lexington, SC
Posts: 3,566
If you think about it, most of us with headers, CAI, and tune have made between 410-420. I would be surprised by those numbers. If you added headers you could probably get another 20-25hp out of the car which would put you roughly around 413-418 which is normal.
__________________
Frid is offline   Reply With Quote
Old 02-18-2013, 05:57 PM   #19
PonyKiller74
 
PonyKiller74's Avatar
 
Drives: 2012 Triple Black ZL1 M6
Join Date: Jun 2010
Location: San Antonio, TX
Posts: 581
Send a message via AIM to PonyKiller74 Send a message via Yahoo to PonyKiller74
Quote:
Originally Posted by newagemuscle View Post
Where do you think you should be? 3:91 gears are not going to give you more rwhp. You basically have a CAI, with some minor exhaust work. Do you have a tune? Even if you do have a those numbers are respectable.

Ram-Blood :
Yes those numbers were with a tune. I know you get what you pay for so im going to get me some seat time at the track when my drag radials come in and hopfully that will cheer me up

He stated that earlier
__________________
Build Thread for my Z is in the works.....
PonyKiller74 is offline   Reply With Quote
Old 02-18-2013, 05:58 PM   #20
blufin

 
blufin's Avatar
 
Drives: 2010 2SS/RS CGM M6
Join Date: Oct 2008
Location: WPB, Florida
Posts: 1,334
Get a set of headers. You can find a good deal on them through a C5 vendor and install them yourself to save cash. Now that's a mod you will know by seat of the pants. That will put you well over 400 at the wheels.
__________________
12.618 @ 110.75 Bone Stock 1/4 mile
8.165 @ 86.52 Bone Stock 1/8 mile
11.189 @ 124.44 on a 1.73 60' TVS2300 3.4 pulley, JRE tuned, Kooks LT headers and HF cats, MBRP catback exhaust, CAI intake, ADM scoop. Stock wheels/tires
blufin is offline   Reply With Quote
Old 02-18-2013, 06:02 PM   #21
Ram-Blood
 
Ram-Blood's Avatar
 
Drives: 2010 Camaro 2SS M6
Join Date: Jul 2012
Location: Greensboro NC
Posts: 26
Newagemuscle im not use to the car game i always drag raced motorcycles.I could tell you what every mod would do on my 1397cc Hayabusa. But my homeboy has a new Challenger and he says he putting down 435rwhp i thought you lost more through the drive train than that so i was just hoping to get close to his number because we have a race locked in.
__________________
Ride or Die Bowtie 4 Life
Ram-Blood is offline   Reply With Quote
Old 02-18-2013, 06:06 PM   #22
Bo White
Account Suspended
 
Drives: 2010 Summit White 1SS
Join Date: Feb 2012
Location: Vance Alabama
Posts: 2,418
Quote:
Originally Posted by mdub76 View Post
Not bad at all. I dynoed 409/411 with lt/cai/catback and hi flos. Recently did the rear suspension and 3.91's. Gear's by far the best mod hands down. Mine was also tuned. Kinda low on the base dyno with only 355 hp. But i pick up 55 hp so maybe my dyno is just low
So did I:
Bo White is offline   Reply With Quote
Old 02-18-2013, 06:07 PM   #23
skar

 
skar's Avatar
 
Drives: 2010 2SSRS headers/CAI/tune/corsa,
Join Date: May 2010
Location: Commerce twp Michigan
Posts: 1,397
Don't forget you will very HP from dyno to dyno day to day.

425.6 here.
__________________
Stainless works headers/cats Roto fab CAI /
Corsa install and tune Livernois
TSW Nuburgring 9 &10" x 20 on Invos (315 & 275 )
JL Audio XD400/4 amp
Pfadt trailing arms & tie rods sway bars.
pedders street 1 package
skar is offline   Reply With Quote
Old 02-18-2013, 06:10 PM   #24
Bo White
Account Suspended
 
Drives: 2010 Summit White 1SS
Join Date: Feb 2012
Location: Vance Alabama
Posts: 2,418
Quote:
Originally Posted by thahemp View Post
Bo I see where you're coming from, but I don't see how a muffler delete plays into this equation.

If the exhaust valve timing was figured with X amount of back pressure on the stock cam, which he has, then reducing back pressure is only going to increase velocity and increase scavenging unless he goes to 3", or larger primaries, or something of that nature. Physically, the diameters haven't changed. Reducing pressure in the same pathway shouldn't diminish exhaust velocity... something else would have to be at play.
My statement was really an open one. Open headers usually make less power on a street cammed engine compared to even a set of dual 3" w/ race mufflers. Ive seen some cars with cutoits make no more power on the dyno than through the exhaust they had on the car.
Bo White is offline   Reply With Quote
Old 02-18-2013, 06:15 PM   #25
newagemuscle
Philippians 4:13
 
newagemuscle's Avatar
 
Drives: SLP Supercharged LS3
Join Date: Aug 2009
Location: The Motor City - Michigan
Posts: 2,518
Quote:
Originally Posted by Ram-Blood View Post
Newagemuscle im not use to the car game i always drag raced motorcycles.I could tell you what every mod would do on my 1397cc Hayabusa. But my homeboy has a new Challenger and he says he putting down 435rwhp i thought you lost more through the drive train than that so i was just hoping to get close to his number because we have a race locked in.
Lets do a little comparison and maybe you will feel better. I also have a 2010 Camaro with an LS3. My mods prior to the supercharger were as follows: 1 7/8 LT headers with hi-flow cats, SLP axle-back, and Roto-fab CAI. I dynoed twice in one week do get an average with these mods. Both were Dyno Jet dynos.. two different tuners. Keep in mind just like putting a bike on a dyno they will all yeild different numbers depending on the dyno... hense measuring tool. The first dyno I put down 410 and the second dyno I did 422. Keep in mind if you put LT's on your car your 393 rwhp would be closer to what I am putting down and maybe more.
__________________
newagemuscle 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 11:12 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.