question for L99 guys.. - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

The Blue Angel · 09-24-2013, 02:05 PM

The sound you hear the the sudden stop of the rushing air going into the engine. I freaked out the first time I heard this sound. But now I love hearing that sound when i go WOT!!

PalmerGA · 09-24-2013, 04:40 PM

Quote:

Originally Posted by MrWray

Ive got the CAI on mine and ive never heard a clunking noise

Me either... but I love the swoosh!

GMTool · 09-24-2013, 05:00 PM

After I put headers on any noise from the CAI, (sucking air or swoosh noises) went away. Not that I did not like the CAI noises. It's just that the headers changed everything.

I never heard a thud, but I never had my CAI on without a tune.
Try going out and driving in manual mode using paddle shifters so AFM won't kick in and see if you hear the thud.

bigssc · 09-24-2013, 05:09 PM

you guys are mistaking the swoosh or rush or air of WOT to what im talking about. im talking about at low speeds like 10 mph and then i accelerate very slowly to lets say 20mph i hear a little weird noise. but we have already established its from my new metal intake and having AFM still on.

i love the sound of the air moving harder because of the intake, but thats not the noise i am speaking of.

GMTool · 09-24-2013, 05:16 PM

Quote:

Originally Posted by bigssc

you guys are mistaking the swoosh or rush or air of WOT to what im talking about. im talking about at low speeds like 10 mph and then i accelerate very slowly to lets say 20mph i hear a little weird noise. but we have already established its from my new metal intake and having AFM still on.

i love the sound of the air moving harder because of the intake, but thats not the noise i am speaking of.

Go for a ride and see if it makes the thud using tap shift. AFM will not kick in when in that mode. Unless you are 100% certain that the noise you hear is AFM, which it no doubt is.
Anyways, after you get headers, exhaust and a tune, you are going to think you have a different car. Get ready to fall in love with your Camaro all over again. It will be the beast you thought you bought.

Frank in MD · 09-24-2013, 05:21 PM

I've never heard anything other than the roar of the engine.

MrWray · 09-24-2013, 09:28 PM

After my longtubes i went about 3 weeks without a tune, the damn AFM was unbearable, headers magnify AFM like X10. After the tune my wife is scared to ride in it now, she said that it went from fast to HOLY S@!# fast. The other day I turned onto a vacant highway and as soon as i straightened up i punched it, burnt rubber through 1st, 2nd, and part of 3rd "tapshifting"

The car goes straight up beastmode now

MrPace · 09-24-2013, 09:43 PM

Quote:

Originally Posted by bigssc

you guys are mistaking the swoosh or rush or air of WOT to what im talking about. im talking about at low speeds like 10 mph and then i accelerate very slowly to lets say 20mph i hear a little weird noise. but we have already established its from my new metal intake and having AFM still on.

i love the sound of the air moving harder because of the intake, but thats not the noise i am speaking of.

Are you sure that what you're hearing isn't the AFM kicking in? It kicks in even at those low speeds...for me, (SS L99) I would hear that "weird sound" of the AFM right after it went to 3rd gear...accelerating slowly...

I am running the stock air intake, so take this for what it's worth...but the AFM kicking in could be described (incorrectly as you acknowledge) as a bit thudish.

markmass · 10-04-2013, 07:00 AM

Quote:

Originally Posted by bigssc

you guys are mistaking the swoosh or rush or air of WOT to what im talking about. im talking about at low speeds like 10 mph and then i accelerate very slowly to lets say 20mph i hear a little weird noise. but we have already established its from my new metal intake and having AFM still on.

i love the sound of the air moving harder because of the intake, but thats not the noise i am speaking of.

Interesting thread for you....
http://chevroletforum.com/forum/taho...nt-woes-57022/
3rd para...

bigssc · 10-04-2013, 09:29 AM

Quote:

Originally Posted by markmass

Interesting thread for you....
http://chevroletforum.com/forum/taho...nt-woes-57022/
3rd para...

yes! but since i posted this thread i have figured out what the sound is... its the damn car going from 4cyl mode to 8cyl mode.. I CANNOT WAIT TO GET THE AFM SHIT TURNED OFF FOREVER

im sorry but anything that turns off half the motor CONSTANTLY cannot be good for it. i understand why they did it but its STUPID. this tune can not come soon enough.

Denis · 10-04-2013, 09:40 AM

idk man...i dont think your AFM is active at that low of a speed. i mean it really only comes on when you're at a cruising speed right? try driving with the paddle shifters, this will keep the AFM from activating and see if that sound still happens.

markmass · 10-04-2013, 09:51 AM

Yup -- that AFM was a pain from day one..Final straw was the Cat-backs. Had it tuned it rapido. That was 3 1/2 years ago!!

Cyber Gray · 10-04-2013, 09:57 AM

That is a proof that your L99 is smoking Shisha

bigssc · 10-04-2013, 10:35 AM

Quote:

Originally Posted by Denis

idk man...i dont think your AFM is active at that low of a speed. i mean it really only comes on when you're at a cruising speed right? try driving with the paddle shifters, this will keep the AFM from activating and see if that sound still happens.

the AFM comes on at about 25-30mph. so yes it comes on at a very low speed.

09-24-2013, 02:05 PM	#15
The Blue Angel Drives: 2014 BRM 1SS/RS Join Date: Sep 2011 Location: Tampa, Fl Posts: 1,058	The sound you hear the the sudden stop of the rushing air going into the engine. I freaked out the first time I heard this sound. But now I love hearing that sound when i go WOT!! __________________ 2014 Blue Ray Metallic 1SS/RS A Road Warrior

09-24-2013, 05:00 PM	#17
GMTool MY SS is SOLD Drives: AGM 2012 Camaro 2SS/RS L99 Join Date: Mar 2012 Location: Southwest Illinois Posts: 1,838	After I put headers on any noise from the CAI, (sucking air or swoosh noises) went away. Not that I did not like the CAI noises. It's just that the headers changed everything. I never heard a thud, but I never had my CAI on without a tune. Try going out and driving in manual mode using paddle shifters so AFM won't kick in and see if you hear the thud. __________________ CAI, Dynatech Headers, HF Cats, JRE Tuned, Corsa Cat Back, Strut Tower Brace.

09-24-2013, 05:21 PM	#20
Frank in MD Raining Blood Drives: 2014 SS Performance Sedan Join Date: Oct 2009 Location: facebook Posts: 2,683	I've never heard anything other than the roar of the engine. __________________ Ordered 1/9/12 - Born 2/3/12 - Delivered 2/21/12 - '12 1SS/RS Summit White - TRADED. 2014 SS Performance Sedan #2974 - Red Hot 2 - S/R. & Spare. Built 01/09/14 #238 of 291 as configured

09-24-2013, 09:28 PM	#21
MrWray SYBIL Drives: 2013 2SS/RS, silver ice metallic Join Date: Oct 2012 Location: Oklahoma Posts: 1,444	After my longtubes i went about 3 weeks without a tune, the damn AFM was unbearable, headers magnify AFM like X10. After the tune my wife is scared to ride in it now, she said that it went from fast to HOLY S@!# fast. The other day I turned onto a vacant highway and as soon as i straightened up i punched it, burnt rubber through 1st, 2nd, and part of 3rd "tapshifting" The car goes straight up beastmode now __________________

10-04-2013, 09:40 AM	#25
Denis Drives: 2010 SS Join Date: May 2012 Location: Yorktown Heights, NY Posts: 7,695 View My Garage	idk man...i dont think your AFM is active at that low of a speed. i mean it really only comes on when you're at a cruising speed right? try driving with the paddle shifters, this will keep the AFM from activating and see if that sound still happens. __________________

09-24-2013, 05:09 PM	#18
bigssc Account Suspended Drives: Black 2013 Camaro 2SS (auto L99) Join Date: Jun 2013 Location: Long Island N.Y. Posts: 610	you guys are mistaking the swoosh or rush or air of WOT to what im talking about. im talking about at low speeds like 10 mph and then i accelerate very slowly to lets say 20mph i hear a little weird noise. but we have already established its from my new metal intake and having AFM still on. i love the sound of the air moving harder because of the intake, but thats not the noise i am speaking of.

10-04-2013, 09:51 AM	#26
markmass TRI-COUNTY CAMAROS Drives: 2SS/RS Oct 2009 Join Date: Oct 2009 Location: Coral Springs Florida Posts: 448 View My Garage	Yup -- that AFM was a pain from day one..Final straw was the Cat-backs. Had it tuned it rapido. That was 3 1/2 years ago!! __________________ GET-TORQ custom CAM 223/243 LSA113, Full LS3 conversion, 3200 stall Multi-Disk TC from Circle-D, B&M Supercooler to cool that tranny down....1 7/8" Kooks Headers and High flowCats. MACH XL Catbacks. Eibach springs, R2C Performance CAI, powdercoated calipers, Footwell lighting in tune with dome lights, tints, ABL Lighting, ACS T3 ports and ACS Eagle T3 triple LED lighting kit. Heritage grill, Hex vents, ZL1 rockers, ZL1 Diffuser, Quad tips...the list keeps getting longer - whats next??

10-04-2013, 09:57 AM	#27
Cyber Gray Wind Rider Drives: ZL1 19 White; Jeep 5.7 GC 15 Join Date: Jan 2010 Location: Muscat Posts: 2,059 View My Garage	That is a proof that your L99 is smoking Shisha __________________ Im not Gray any more !!