Educate me on DOD/AFM delete - Page 3 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Darth_Emma · 08-20-2010, 11:42 AM

I'm betting your tune turned off AFM, PQ.

You didn't notice it at stock because you still had the stock resonators. Once those headers went on, I think you'd notice it when/if AFM turns on.

That being said, AFM would never turn off anyway unless you ease off of the gas pedal! I'm thinking you like your Borla so much you are one of those guys who goes straight from full throttle to the brakes with no coasting.

*mlee* · 08-20-2010, 11:42 AM

Quote:

Originally Posted by NickJRE

No problem thanks for the Feedback.

-Nick

....aren't you guys all about burning up gas???... j/k

Always value your awesome input...

Quote:

Originally Posted by Darth_Emma

I'm thinking you like your Borla so much you are one of those guys who goes straight from full throttle to the brakes with no coasting.

Coasting... are you kidding? Don't you know he's the Freaking Jedi Master...

Josh @ Spartan LSX · 08-21-2010, 08:58 AM

Turning off the D.O.D. without removing the D.O.D. lifters will destroy them. You do not turn that off until the car has been converted.

Don O · 08-21-2010, 09:23 AM

Quote:

Originally Posted by Damian

Turning off the D.O.D. without removing the D.O.D. lifters will destroy them. You do not turn that off until the car has been converted.

Please explain why?

Don O

Duke · 08-21-2010, 12:23 PM

Quote:

Originally Posted by Damian

Turning off the D.O.D. without removing the D.O.D. lifters will destroy them. You do not turn that off until the car has been converted.

axis · 08-21-2010, 04:14 PM

Quote:

Originally Posted by mlee

That's because you probably got a headers and a tune at the same time your DOD was turned off...

Nope. All that's on the car is a Halltech and Xpipe replacing the Hpipe and resonators. Both of those were done before the tune. This is a Hypertech tuner with the standard 93 octane tune. I didn't do any one day tests or anything like that. Watched it for a month of normal day to day driving with and without AFM. With AFM 18.2mpg, without 18.0.

It may be that JUST turning off AFM and not tuning will net negative results. The tune could have made up the difference.

PDXSSCE · 07-12-2016, 09:26 PM

Quote:

Originally Posted by mlee

I always hate disagreeing w/ the expert buuuut, I can guarantee you there is a MPG hit. I've tested on two different cars with the Diablo and JRE tune both with and without headers.

What's your opinion of the Diablo tune?

Quote:

Originally Posted by Josh @ Spartan LSX

Turning off the D.O.D. without removing the D.O.D. lifters will destroy them. You do not turn that off until the car has been converted.

I was informed that disabling AFM causes damage over time due to "flaps" not opening & closing when switching between 4 & 8 cylinders. Apparently they get stuck.
Is it to what you're referring?

Quote:

Originally Posted by axis

It may be that JUST turning off AFM and not tuning will net negative results. The tune could have made up the difference.

I'm curious, how would a tune make up for the difference of turning off AFM?

PalmerGA · 07-13-2016, 07:58 AM

Get a Range device. Plug n Play. Kills AFM when you don't want it on. Or unplug it and have AFM available if you choose to use it.

PDXSSCE · 07-13-2016, 08:03 AM

Quote:

Originally Posted by PalmerGA

Get a Range device. Plug n Play. Kills AFM when you don't want it on. Or unplug it and have AFM available if you choose to use it.

I appreciate the suggestion, but I'm seeking some specific information.

qcman · 07-13-2016, 09:54 AM

I have never read anything until here that turning off AFM causes any problems with the lifters. Mine is turned off in my tune. As for fuel economy AFM can only do any MPG improvement in very specific circumstances. My car is a bit less fuel efficient on long highway trips where AFM can be turned on for a long period of time. Any other driving I see no difference.

I believe it is a mostly useless feature for day to day driving. Oddly enough the new LT1 in the gen 6 has AFM on the autos but not on the manual cars. So the manual cars are just disabled not a different configuration which makes me think just turning it off on our cars wouldn't hurt them either.

GodWentPunk · 07-13-2016, 11:21 AM

I use the RANGE AFM to turn on my AFM when I don't want it working. I have an aftermarket axle-back muffler system and when AFM kicks in, you get that farting sound. And my AFM will still kicks in when I'm accelerating when under 30 mph.. if diving easily.. If I'm pushing the car, then it does not kick in. When I just driving to work, I leave the AFM working but when I want to go cruising and show off the car, I disable the AFM. I'm still trying to see what gas mileage saving I get having the AFM disabled.

joe...

2010reddevil · 07-14-2016, 02:39 AM

Fwiw, on my '12 Silverado, bone stock with AFM enabled, avg mpg was 17.5-18. With full exhaust and tune that disabled the AFM, avg mpg was 18-18.7. Don't know if the exhaust and tune made the difference either, but for a truck, it wasn't too bad really. Getting it tuned and removing the tq management, plus getting the trans tuned made a huge difference.

GenesisCoupe · 10-11-2021, 09:37 PM

Quote:

Originally Posted by axis

No you don't but I think you're referring to the DOD lifter swap when doing a cam. The OEM DOD lifters don't play well with most of the cams out there. This is so you can run a more aggressive cam profile to gain more HP. I think every handheld along with HP tuners and such gives you the option to turn DOD off. There's no need to change parts if you're not changing cams.

I went to GM dealer, they can turn off the AFM system temporarily only. Can I use the AFM Disabler RA003 For GM Vehicles? It is just a plug for OBDII

1JEWLDSSRS · 10-12-2021, 05:21 PM

Wow, old thread!! For what it's worth now, we disabled my AFM back at 19k on the clock when we did the LT's, exhaust and dyno tune and have had no issues with the AFM lifters, then we did the cam swap and AFM/DOD delete at 98k. And I drove her really hard back then too, lots of rev limiter bumps and WOT throttle runs... I guess it just depends on the engine. And manual cars DO NOT have AFM, they had the skip shift feature.

07-13-2016, 07:58 AM	#36
PalmerGA Drives: 2013 SIM 1SS/RS L99 Join Date: May 2012 Location: Southwest GA Posts: 8,755 View My Garage	Get a Range device. Plug n Play. Kills AFM when you don't want it on. Or unplug it and have AFM available if you choose to use it. __________________ 2013 1SS/RS Coupe L99, Stainless Power Works LT Headers, SCT X4 Custom Tune from RDP, CAI Inc. Air Intake w/ Apex Scoop, VMAX CNC Ported Throttle Body, Solo Axle-Back Exhaust w/ J-pipes, Apex Catch Can, Husky Splash Guards, Heritage Grille, 3D Carbon Rear Spoiler, Oracle Chrome Turn Signal Bulbs, GM Reverse Light Trim Billets, Gorilla Black Locking Lugs, Emblem Pros Retro SS Badges/Custom Retro SS Kickplates/Under-hood Bowtie, 35% window Tint, Nitto Motivo Tires (6-8-18)

07-14-2016, 02:39 AM	#40
2010reddevil Drives: 2010 Camaro 2SS Victory Red 6M Join Date: Apr 2015 Location: Gulf Coast, TX Posts: 1,424	Fwiw, on my '12 Silverado, bone stock with AFM enabled, avg mpg was 17.5-18. With full exhaust and tune that disabled the AFM, avg mpg was 18-18.7. Don't know if the exhaust and tune made the difference either, but for a truck, it wasn't too bad really. Getting it tuned and removing the tq management, plus getting the trans tuned made a huge difference. __________________ 2011 2SS 6A Red Jewel Metallic, Vararam Tune CAI, Magnaflow 3" Competition c/b, Speed Engineering 1-7/8 LT's, Circle D 5C, M/T 275/40R20 S/S, HPTuners tune by Ryan@GPI 12.3 @ 112 ACM as of 12/22/19 Gone on 12/28/19 R I P 2010 2SS 6M Victory Red/Black (old ride) CAI intake, Speed Engineering 1 7/8" LT's, X4 base tune, Flowmaster Outlaw axle-back. 12.6 @ 115 SAR as of 9/19/15 Gone but never forgotten.

10-12-2021, 05:21 PM	#42
1JEWLDSSRS Drives: 2011 SS-RS Join Date: May 2011 Location: FLORIDA Posts: 11,417	Wow, old thread!! For what it's worth now, we disabled my AFM back at 19k on the clock when we did the LT's, exhaust and dyno tune and have had no issues with the AFM lifters, then we did the cam swap and AFM/DOD delete at 98k. And I drove her really hard back then too, lots of rev limiter bumps and WOT throttle runs... I guess it just depends on the engine. And manual cars DO NOT have AFM, they had the skip shift feature. __________________ TSP STAGE 3 CAM,231/246 @112 LSA 614/641 LIFT, CIRCLE D 5C-4200-4500 CONVERTER,LOD INTAKE.CORSA EXHAUST. DSS 1 PC DS. PEGASUS SOLID CRADLE MOUNTS. 486RWHP/475RWTQ.LOTS MORE.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
muffler delete with xpipe and no resonators, first imprseeions	caper	Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons	11	07-05-2011 04:41 PM
ATAK compared to Muffler delete, decel. popping?	defragme	Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons	12	07-24-2010 10:01 AM
LT header and muffler delete	kbui	USA - Texas	6	06-17-2010 05:39 PM
Muffler Delete with Dyno clips and pictures	KK2010SS	Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons	9	07-26-2009 02:09 PM
To muffler delete or not to delete	BumbleBeeSS2009	Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons	81	06-25-2009 04:55 AM

08-20-2010, 11:42 AM	#29
Darth_Emma Psssssssssshhhhhhhhhhhhh! Drives: under contruction Join Date: Nov 2009 Location: Marysville, Ohio Posts: 12,996 View My Garage	I'm betting your tune turned off AFM, PQ. You didn't notice it at stock because you still had the stock resonators. Once those headers went on, I think you'd notice it when/if AFM turns on. That being said, AFM would never turn off anyway unless you ease off of the gas pedal! I'm thinking you like your Borla so much you are one of those guys who goes straight from full throttle to the brakes with no coasting.

08-21-2010, 08:58 AM	#31
Josh @ Spartan LSX Drives: A wrench Join Date: Jan 2010 Location: East Atlanta Posts: 353	Turning off the D.O.D. without removing the D.O.D. lifters will destroy them. You do not turn that off until the car has been converted.

07-13-2016, 09:54 AM	#38
qcman Drives: 2013 Camaro 2SS RDP Tuned L99 Join Date: Apr 2013 Location: Ottawa, Canada eh? Posts: 1,889	I have never read anything until here that turning off AFM causes any problems with the lifters. Mine is turned off in my tune. As for fuel economy AFM can only do any MPG improvement in very specific circumstances. My car is a bit less fuel efficient on long highway trips where AFM can be turned on for a long period of time. Any other driving I see no difference. I believe it is a mostly useless feature for day to day driving. Oddly enough the new LT1 in the gen 6 has AFM on the autos but not on the manual cars. So the manual cars are just disabled not a different configuration which makes me think just turning it off on our cars wouldn't hurt them either.

07-13-2016, 11:21 AM	#39
GodWentPunk Drives: 2015 2SS White Convertible CE/INDY Join Date: Mar 2016 Location: Lockport, IL Posts: 780 View My Garage	I use the RANGE AFM to turn on my AFM when I don't want it working. I have an aftermarket axle-back muffler system and when AFM kicks in, you get that farting sound. And my AFM will still kicks in when I'm accelerating when under 30 mph.. if diving easily.. If I'm pushing the car, then it does not kick in. When I just driving to work, I leave the AFM working but when I want to go cruising and show off the car, I disable the AFM. I'm still trying to see what gas mileage saving I get having the AFM disabled. joe...