*Official* L99 Dyno Thread - Page 12 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

cybercoaster · 08-02-2010, 09:58 PM

My best run at the track during Camaro5Fest was 13.5 and that was stock. I am waiting for it to cool off some before I go to the track here after my mods and tune. It feels like a lot of power and sometimes it will bark the tires in 2nd so I feel pretty good about it. Thanks all.

MastMotorsports · 08-25-2010, 09:58 PM

Quote:

Originally Posted by 9c1ny

everything thing I have read concludes the real restriction is way before the mufflers and that an axle back adds nothing but sound

You will definitely see a better increase in hp/tq with a set of headers and high flow cats.

Actually, we have a L99 Camaro that we put headers on with high flow cats and left the stock cat-back. The car sounds pretty good (significantly louder). We are installing a cam right now but hope to dyno tomorrow. I will post the results!

Markel · 09-01-2010, 10:15 PM

Quote:

Originally Posted by MastMotorsports

Actually, we have a L99 Camaro that we put headers on with high flow cats and left the stock cat-back. The car sounds pretty good (significantly louder).

If I understand correctly, you are still using the stock resonator and mufflers. Correct?

Williasd · 09-05-2010, 09:08 AM

I use my L99 AT 2SS/RS as a daily driver. I am a total novice when it comes to the HP car mods and trying to keep the warrenty for as long as possible. The only mod made so far is a Borla ATAK cat back exhaust. I am looking at the Borla short headers and LT headers with a set of High Flow Cats. What is the difference between the headers and will it make the car too loud to keep driving daily.

MastMotorsports · 09-07-2010, 10:12 AM

Quote:

Originally Posted by Markel

If I understand correctly, you are still using the stock resonator and mufflers. Correct?

We removed the resonator, still using the stock mufflers though!

Darth_Emma · 09-10-2010, 03:39 PM

Here is my latest dyno sheet.
496 rwhp
483 torque.

Mods: Magnuson TVS 2300 with 3.6" pulley, Kooks LT 1 7/8" headers, CAI intake, Borla touring exhaust, and dyno tune with HP tuners by IPS Motorsports.

thesnoopster · 09-10-2010, 08:06 PM

Nice numbers Darth!! Good Job!

Darth_Emma · 09-10-2010, 08:13 PM

Thanks, snoops!

FRANK121 · 09-15-2010, 05:25 PM

I must have one of those under performing L99's

I only have 250 miles right now but have tried the #5 and #20 fuse trick and still cannot spin the tires with the traction control all off

I do not have access to a dyno to see what is actually getting put to the rear wheels, but this thing ought to be able light the tires up without brake torque shouldn't it?

GJG · 09-20-2010, 08:46 PM

L99
Hennessy CAI
ARH - 2.5" Magnaflow axle backs
Dyno Tune

Markel · 09-20-2010, 10:17 PM

Quote:

Originally Posted by MastMotorsports

Actually, we have a L99 Camaro that we put headers on with high flow cats and left the stock cat-back. The car sounds pretty good (significantly louder). We are installing a cam right now but hope to dyno tomorrow. I will post the results!

StealthSS · 09-21-2010, 08:08 PM

Ok I am a little bummed at my numbers. But here they are anyways.

Setup: Edlebrock E-force Supercharger, Kooks LT headers, Magnaflow Comp Exhaust, Airaid Intake, Kenny Bell Boostapump, Smaller Pully

Before the Boost a pump and smaller pulley: HP - 452.77 & Torque 461.12
After the new pulley, pump, new injectors: HP - 453.64 & Torque 504.48

1 Freaking HP What!!!

The explanation to me was that the intake air was too hot and the computer on the car shut down. Dyno was done on a 98 degree day.

Darth_Emma · 09-21-2010, 08:41 PM

But you gained over 40 torque. That's cool.

Was it hot when they dynod the car this time compared to the first time? My car gained about 40 hp after its original dyno because they did it again the next morning when it was about 30 degrees F cooler.

What size pulleys did you swap?

JS · 10-16-2010, 12:43 AM

Just tuned with mods below
382RWHP/395RWTQ SAE CORRECTED

09-10-2010, 08:06 PM	#161
thesnoopster Drives: '17 Fifty SS - '18 Traverse Redline Join Date: Jul 2009 Location: Northern Virginia Posts: 3,616	Nice numbers Darth!! Good Job! __________________ 2017 Camaro SS -"FIFTY" Mods: "93 Octane"

09-15-2010, 05:25 PM	#163
FRANK121 Drives: 2022 Camaro ZL1 Join Date: Sep 2010 Location: Sullivan, Missouri Posts: 653 View My Garage	Well Hell I must have one of those under performing L99's I only have 250 miles right now but have tried the #5 and #20 fuse trick and still cannot spin the tires with the traction control all off I do not have access to a dyno to see what is actually getting put to the rear wheels, but this thing ought to be able light the tires up without brake torque shouldn't it?

09-20-2010, 08:46 PM	#164
GJG Drives: 2SS Join Date: Apr 2009 Location: Beaumont, Tx Posts: 871 View My Garage	L99 Hennessy CAI ARH - 2.5" Magnaflow axle backs Dyno Tune __________________ Sleep well America.....my MARINE has your back......

09-21-2010, 08:08 PM	#166
StealthSS Drives: 2010 2SS/RS Camaro - Black Join Date: Jan 2010 Location: Texas Posts: 81 View My Garage	Ok I am a little bummed at my numbers. But here they are anyways. Setup: Edlebrock E-force Supercharger, Kooks LT headers, Magnaflow Comp Exhaust, Airaid Intake, Kenny Bell Boostapump, Smaller Pully Before the Boost a pump and smaller pulley: HP - 452.77 & Torque 461.12 After the new pulley, pump, new injectors: HP - 453.64 & Torque 504.48 1 Freaking HP What!!! The explanation to me was that the intake air was too hot and the computer on the car shut down. Dyno was done on a 98 degree day. __________________ 2010 Black/Black Camaro 2SS/RS (Airaid CAI, Street Scene Body Kit, Weather Tech Floorliners, Carriage Works Billets, Magnaflow Competition Exhaust, Kooks LT headers, Edlebrock E Force Supercharger, Snow Performance Methanol kit, Lakewood trailing arms/toe links, Eibach front and rear sways, Nitto drag radials)

10-16-2010, 12:43 AM	#168
JS Drives: 2010 Camaro SS Join Date: May 2010 Location: Phila,Pa. Posts: 557	Just tuned with mods below 382RWHP/395RWTQ SAE CORRECTED __________________ SOLD 2010 Camaro 1SS/A6 12.59@111.31 Magnaflow Magnapack Axleback & Resonated X-Pipe/OBX LT Headers/Airaid Cold Air Kit/Injection Connection Tuned

08-02-2010, 09:58 PM	#155
cybercoaster Drives: 2017 2SS 50th Anv, 1972 RS Join Date: Mar 2009 Location: Oklahoma City Posts: 1,588 View My Garage	My best run at the track during Camaro5Fest was 13.5 and that was stock. I am waiting for it to cool off some before I go to the track here after my mods and tune. It feels like a lot of power and sometimes it will bark the tires in 2nd so I feel pretty good about it. Thanks all.

09-05-2010, 09:08 AM	#158
Williasd Drives: 2013 2SS/RS 1LE Join Date: Sep 2010 Location: Charleston SC Posts: 111 View My Garage	I use my L99 AT 2SS/RS as a daily driver. I am a total novice when it comes to the HP car mods and trying to keep the warrenty for as long as possible. The only mod made so far is a Borla ATAK cat back exhaust. I am looking at the Borla short headers and LT headers with a set of High Flow Cats. What is the difference between the headers and will it make the car too loud to keep driving daily.

09-10-2010, 03:39 PM	#160
Darth_Emma Psssssssssshhhhhhhhhhhhh! Drives: under contruction Join Date: Nov 2009 Location: Marysville, Ohio Posts: 12,996 View My Garage	Here is my latest dyno sheet. 496 rwhp 483 torque. Mods: Magnuson TVS 2300 with 3.6" pulley, Kooks LT 1 7/8" headers, CAI intake, Borla touring exhaust, and dyno tune with HP tuners by IPS Motorsports.

09-10-2010, 08:13 PM	#162
Darth_Emma Psssssssssshhhhhhhhhhhhh! Drives: under contruction Join Date: Nov 2009 Location: Marysville, Ohio Posts: 12,996 View My Garage	Thanks, snoops!

09-21-2010, 08:41 PM	#167
Darth_Emma Psssssssssshhhhhhhhhhhhh! Drives: under contruction Join Date: Nov 2009 Location: Marysville, Ohio Posts: 12,996 View My Garage	But you gained over 40 torque. That's cool. Was it hot when they dynod the car this time compared to the first time? My car gained about 40 hp after its original dyno because they did it again the next morning when it was about 30 degrees F cooler. What size pulleys did you swap?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
L99 Love	Mod4SS	5th Gen Camaro SS LS LT General Discussions	95	02-14-2015 07:51 PM
Dyno Dynamics AWD Dyno @ Hennessey Performance	Hennessey Performance	USA - Texas	0	08-08-2009 10:03 AM
LS3 Tune Only Results .. Also stock LS3 vs. L99 dyno graph	LPFSTheFett	Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons	5	08-05-2009 07:04 AM
Tuning LS3 vs L99	Evilangel	Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons	17	10-30-2008 10:22 AM
L99 engine specifications	Tran	Wiki	0	10-19-2008 11:40 AM