Tuning out Deceleration Exhaust Popping - Page 9 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

CUPRA · 04-11-2011, 10:43 PM

I love the sound the car makes under decel! Love getting that popping sound!

ssump29 · 04-11-2011, 10:46 PM

well you can always tell the new owners of their first V-8 LS engine car when threads like this pop up. LOL hell this sound which I love by the way does it in my v-10 bmw as well. LOVE LOVE LOVE that sound. But its the best in a F-430 ferrari ohhhhhhh boyyyyyy is it awesome.

kstmbkes · 04-11-2011, 10:47 PM

sounds really cool without mufflers. mine has a great sound running straight pipes. and so much cheaper the buying the cat-back, or flowmaster and others.

Pollock · 04-12-2011, 07:20 AM

Quote:

Originally Posted by kstmbkes

sounds really cool without mufflers. mine has a great sound running straight pipes. and so much cheaper the buying the cat-back, or flowmaster and others.

For some reason a muffler delete sounds like it would be over the top loud.

I have a Flowmaster American Thunder cat back system on the way.

VTXrider · 04-12-2011, 11:15 AM

Quote:

Originally Posted by Comrando

Push it into third and use the brakes. It's never a good idea to use engine braking.

Please explain?? Why do you believe engine breaking is bad?

GRYGOOS · 04-12-2011, 11:18 AM

Quote:

Originally Posted by GRYGUSS

Sry man!!! There is only one GRYGUSS!!!!

Now there are two. Cheers!

scottyvegas · 04-12-2011, 12:09 PM

I have exhaust cut outs & IT IS SOOOOOOOOOOOO LOUD! i love it.

2010abmss · 06-02-2011, 01:47 AM

I'm about to my car SCT tuned by Ted, will it really hurt my mileage to have the decel pop tuned out because it gets on my nerves especially with my exhaust, plus I live on a Military base. My neighbor asked me about it the other day he said "whats that popping sound coming from your car"

RedLine_P · 06-02-2011, 04:24 AM

I got rid of this on my personal car by turning off the "deceleration fuel cut off" with no noticable fuel milage change. However if most of your driving is highway milage it could hurt you. You may also have to add some to the tables for the P0068 "max airflow" tables. This is a test the ecm is constantly running to make sure the electronic throttle body is not stuck open. It checks the measured airflow against a series of tables and multipliers, including rpm, and map sensor reading, and desired throttle position. (something toyota should have spent more time on....lol) most people who are too lazy to spend the time to tweek these table just disable the test but this is not a good idea.... I have never personally seen one of the gm units stick but if it does you could be in for a wild ride. The first time I turned off the decel fuel cutoff I got this P0068 code and it only required about a 10% increase to get it to work.

I have also seen the popping go away after installing aftermarket headers and or aftermarket cats.

hope this helped...

chris

kmcd · 06-11-2011, 06:01 PM

Tell your neighbor that's the way a muscle car is supposed to sound.

JANNETTYRACING · 06-13-2011, 01:18 PM

Quote:

Originally Posted by 2010abmss

I'm about to my car SCT tuned by Ted, will it really hurt my mileage to have the decel pop tuned out because it gets on my nerves especially with my exhaust, plus I live on a Military base. My neighbor asked me about it the other day he said "whats that popping sound coming from your car"

In most instances yes, your putting fuel in when not needed.

Decel fuel cut off really helps mileage when you always on and off the gas at speeds below 45 mph.

No difference steady cruise Highway speeds though.

Ted.

BWood · 06-13-2011, 03:26 PM

Is this one of the "canned" options in the SCT or does it require a custom tune?

JANNETTYRACING · 06-13-2011, 03:28 PM

Quote:

Originally Posted by BWood

Is this one of the "canned" options in the SCT or does it require a custom tune?

Custom tune option only.

BWood · 06-13-2011, 03:35 PM

Quote:

Originally Posted by JANNETTYRACING

Custom tune option only.

Oh, ok. You'll be writing my tune anyway whenever I get around to getting a cam but I'm still on the fence about the decel popping. I don't do a whole lot of city driving but I'd still like to know how bad I'll get nailed at the pump.

04-11-2011, 10:43 PM	#113
CUPRA Drives: '21 Bronco OBX/'18 Jeep GC Altitude Join Date: Jul 2008 Location: Keller, TX Posts: 1,413 View My Garage	I love the sound the car makes under decel! Love getting that popping sound! __________________ Order Placed: 04/30/22 Order Accepted: 10/18/22 TPW: 11/07/22 Built: 11/18/22 VIN received: 11/19/22 On a Train: 02/27/23 ETA: TBD 2023 Camaro 2SS Convertible/M6/Shadow Grey Metallic/Adrenaline Red Interior/Carbon Flash Wheels/NPP

04-11-2011, 10:46 PM	#114
ssump29 LOL at most people here. Drives: 2005 GTO,2006 M6, 2007 300 Touring Join Date: May 2009 Location: MI Posts: 1,331 View My Garage	well you can always tell the new owners of their first V-8 LS engine car when threads like this pop up. LOL hell this sound which I love by the way does it in my v-10 bmw as well. LOVE LOVE LOVE that sound. But its the best in a F-430 ferrari ohhhhhhh boyyyyyy is it awesome. __________________ Number 5952. oh yeahhhhhhh

06-02-2011, 01:47 AM	#120
2010abmss Drives: 2010 ABM SS Join Date: Feb 2011 Location: TX Posts: 598	Tuning out Decel Pop I'm about to my car SCT tuned by Ted, will it really hurt my mileage to have the decel pop tuned out because it gets on my nerves especially with my exhaust, plus I live on a Military base. My neighbor asked me about it the other day he said "whats that popping sound coming from your car" __________________ Sold 2010 ABM 2SS RS. Kooks, Corsa CB

06-11-2011, 06:01 PM	#122
kmcd 1,425 hp / supercharged Drives: (2020 2SS/M6) (2025 GMC Yukon) Join Date: Oct 2009 Location: Central Texas Posts: 1,105	Tell your neighbor that's the way a muscle car is supposed to sound. __________________

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
OK...I'm starting a better V6 exhaust examples thread!!	KMPrenger	Camaro V6 LLT Engine, Exhaust, and Bolt-Ons	612	09-06-2024 09:00 AM
Tuning, Exhaust question L99	Switchback700	Tuning / Diagnostics -- engine and transmission	37	05-03-2011 12:12 PM
Thinking about going 2.5" the entire System	mike.nite	Camaro V6 LLT Engine, Exhaust, and Bolt-Ons	12	01-11-2011 04:57 PM
tuning due to exhaust help anyone?	moiy1983	Tuning / Diagnostics -- engine and transmission	3	03-14-2010 12:59 PM
Exhaust Popping During Decel	lee215	Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons	25	09-11-2009 11:01 AM

04-11-2011, 10:47 PM	#115
kstmbkes Drives: 2010 Camaro, 2ss Rally yellow Join Date: Dec 2008 Location: Evansville, IN Posts: 69 View My Garage	sounds really cool without mufflers. mine has a great sound running straight pipes. and so much cheaper the buying the cat-back, or flowmaster and others.

04-12-2011, 12:09 PM	#119
scottyvegas X SS Drives: 2010 Camaro 2SSRSM6 1988 Sportside Join Date: Jan 2011 Location: iN tHE zEN dEN Posts: 661	I have exhaust cut outs & IT IS SOOOOOOOOOOOO LOUD! i love it.

06-02-2011, 04:24 AM	#121
RedLine_P Drives: 2010 ss Join Date: Sep 2009 Location: Gilmer Tx Posts: 12 View My Garage	I got rid of this on my personal car by turning off the "deceleration fuel cut off" with no noticable fuel milage change. However if most of your driving is highway milage it could hurt you. You may also have to add some to the tables for the P0068 "max airflow" tables. This is a test the ecm is constantly running to make sure the electronic throttle body is not stuck open. It checks the measured airflow against a series of tables and multipliers, including rpm, and map sensor reading, and desired throttle position. (something toyota should have spent more time on....lol) most people who are too lazy to spend the time to tweek these table just disable the test but this is not a good idea.... I have never personally seen one of the gm units stick but if it does you could be in for a wild ride. The first time I turned off the decel fuel cutoff I got this P0068 code and it only required about a 10% increase to get it to work. I have also seen the popping go away after installing aftermarket headers and or aftermarket cats. hope this helped... chris

06-13-2011, 03:26 PM	#124
BWood Drives: 2010 Camaro 2SS/RS M6 Join Date: Dec 2009 Location: Valencia, Ca. Posts: 141	Is this one of the "canned" options in the SCT or does it require a custom tune?