Air intake silencer
Thread Starter
Pro
Joined: Nov 2013
Posts: 552
Likes: 58
From: western NC, USA
Air intake silencer
I just found the resonator box that is supposed to be attached to the side of the air cleaner on my '08 C-6 LS-3 has come unattached at some time. At the very least it's allowing dirty air into the engine. My question is - is this part glued to the air cleaner assembly or is it supposed to be attached with some kind of clamp mechanism. Apparently, the box and the air cleaner on mine have been rubbing together so long I can't tell how the two pieces were ever attached. If someone will check for me to see if it's all one glued assembly or if the two are held together by some other means, I'd appreciate it. If the two pieces are supposed to be glued together from the factory, I'll re-glue them. If that's not the way it's supposed to be then I guess I'll look for another assembly where the attaching method hasn't been damaged by the long time rubbing against each other.
I have done a little reading and see that it's supposed to smooth the airflow into the plenum.
I have done a little reading and see that it's supposed to smooth the airflow into the plenum.
Last edited by RobJoy; Mar 30, 2018 at 09:01 PM.
Drifting
Joined: Jul 2011
Posts: 1,825
Likes: 442
From: Boca Raton Florida
That happened to me too few years back. They are glued together and it looks something like a crazy glue, dried up and separated. I used JB weld, 2 part epoxy for marine industry, that thing is never coming apart again. It is solid.
Le Mans Master
Joined: Oct 2014
Posts: 8,672
Likes: 2,726
From: Atlanta GA
Don't 86 it and install the ZR1 .... the LS3 air intake flows just as well and that is a HEMHOLTZ resonator designed to reduce surging that was felt by many because of turbulence over the sensor
It is just glued together so as the others stated just use some JB weld and glue it back on
Dave
It is just glued together so as the others stated just use some JB weld and glue it back on
Dave
Drifting
Joined: Jul 2011
Posts: 1,825
Likes: 442
From: Boca Raton Florida
Originally Posted by Dcasole
Don't 86 it and install the ZR1 .... the LS3 air intake flows just as well and that is a HEMHOLTZ resonator designed to reduce surging that was felt by many because of turbulence over the sensor
It is just glued together so as the others stated just use some JB weld and glue it back on
Dave
It is just glued together so as the others stated just use some JB weld and glue it back on
Dave
Everyone knows better than engineers here who took the time and money to design that and put it on the LS3. It is not an LS7 or LS9. BJ weld is under 5 bucks.
Race Director
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Le Mans Master
Joined: Oct 2014
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From: Atlanta GA
OK... tell me what is different? They both use the same filter
GM did not just add something just because ....
Sure you can change it but why would u as the LS2 and 3 motors are prone to Surge , you don't feel it as much with a automatic as you do with a stick car but its there ....
Dave
Last edited by Dcasole; Mar 31, 2018 at 07:20 PM.
Melting Slicks
Joined: Aug 2016
Posts: 2,448
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From: JARRELL TEXAS
Oemtech is from the computer business.
I have had both on my 08... No issues with the Z06 version.
Went thru the same issue on my 10 Hemi Challenger. Went with the SRT version to get rid of the wart.
Having checked the before and after via Trinity data logging (LTFT,STFT, Knock Retard, Timing etc) I could not find much difference if any. Maybe, just maybe I could add some timing and fuel at WOT or RPM's about 4,000. I also tested a Corsa CAI and it definitely need some tuning. I took it off when I decided to leave the engine stock.
Explain the COST Difference?
I have had both on my 08... No issues with the Z06 version.
Went thru the same issue on my 10 Hemi Challenger. Went with the SRT version to get rid of the wart.
Having checked the before and after via Trinity data logging (LTFT,STFT, Knock Retard, Timing etc) I could not find much difference if any. Maybe, just maybe I could add some timing and fuel at WOT or RPM's about 4,000. I also tested a Corsa CAI and it definitely need some tuning. I took it off when I decided to leave the engine stock.
Explain the COST Difference?
Last edited by oemtech; Mar 31, 2018 at 07:22 PM.
Le Mans Master
Joined: Oct 2014
Posts: 8,672
Likes: 2,726
From: Atlanta GA
but just because you did it or others , does not make it right , not unless you warn the OP that there could be a surging problem which is a known problem with the LS motors Hence the reason why they added the resonator
Dave
Melting Slicks
Joined: Aug 2016
Posts: 2,448
Likes: 160
From: JARRELL TEXAS
I would say that the Wart is added more for sound reduction than anything else. On my 14 Cadillac ATS 2.0T the silencer was mounted inside the air tube.
As for SURGING... any links?
Le Mans Master
Joined: Oct 2014
Posts: 8,672
Likes: 2,726
From: Atlanta GA
Le Mans Master
Joined: Oct 2014
Posts: 8,672
Likes: 2,726
From: Atlanta GA
Drifting
Joined: Dec 2016
Posts: 1,377
Likes: 219
People have reported surging issues... I personally picked up a LS7 intake for cheap to put on the 3. No surging, a little more intake growl (but really nothing you can hear unless the NPP is closed)
Most aftermarket intakes dont have the resonator/silencer so I suspect its not really necessary...
Most aftermarket intakes dont have the resonator/silencer so I suspect its not really necessary...
Melting Slicks
Joined: Aug 2016
Posts: 2,448
Likes: 160
From: JARRELL TEXAS
I check my ALL DATA database for any TSB's that reference "surging" and came up clean.
To me the "Wart" is nothing more than an "intake muffler" and has nothing to do with performance. The OP can make an informed decision on whether to keep his air intake stock or update to something else like the Z06 air intake or aftermarket CAI.
I still want to know why it's almost $280 to remove the silencer.
Le Mans Master
Joined: Oct 2014
Posts: 8,672
Likes: 2,726
From: Atlanta GA
You win , you do not need it......GM is wrong and all the engineer's are wrong...... and we are idiots for paying for it ...
Don't bother to respond..
Dave
Instructor
Joined: Apr 2015
Posts: 189
Likes: 64
From: Nisswa MN
I put a Z06 intake on my base 2009 LS3 so that I could install an Elite Engineering 2 oil catch can. The GM engineers claim that the oil consumption issues through the PCV system on a LS3 is acceptable and normal to foul the intake and spark plugs.
Mine doesn't surge and I've slowed the oil down.
Mine doesn't surge and I've slowed the oil down.
Last edited by VETYGUD; Apr 1, 2018 at 01:12 PM.
Safety Car
Joined: Nov 2007
Posts: 4,433
Likes: 873
From: Bay Area CA
Helmholtz Resonator is designed to do two things:
1. Smooth out air pulses that bounce off the throttle plates. This allows the MAF to read a more stable airflow.
2. Decrease intake sound.
Apparently, GM felt it necessary on the LS3 and not the LS7.
1. Smooth out air pulses that bounce off the throttle plates. This allows the MAF to read a more stable airflow.
2. Decrease intake sound.
Apparently, GM felt it necessary on the LS3 and not the LS7.
Last edited by Mike's LS3; Apr 1, 2018 at 01:18 PM.
Thread Starter
Pro
Joined: Nov 2013
Posts: 552
Likes: 58
From: western NC, USA
Update 4-2-18
I just found the resonator box that is supposed to be attached to the side of the air cleaner on my '08 C-6 LS-3 has come unattached at some time. At the very least it's allowing dirty air into the engine. My question is - is this part glued to the air cleaner assembly or is it supposed to be attached with some kind of clamp mechanism. Apparently, the box and the air cleaner on mine have been rubbing together so long I can't tell how the two pieces were ever attached. If someone will check for me to see if it's all one glued assembly or if the two are held together by some other means, I'd appreciate it. If the two pieces are supposed to be glued together from the factory, I'll re-glue them. If that's not the way it's supposed to be then I guess I'll look for another assembly where the attaching method hasn't been damaged by the long time rubbing against each other.
I have done a little reading and see that it's supposed to smooth the airflow into the plenum.
I have done a little reading and see that it's supposed to smooth the airflow into the plenum.