Supercharger Rattle - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Rizzo · 04-30-2012, 10:08 AM

I noticed this weekend that when the car is idling and the hood is up, there is a light rattle coming from the area of the supercharger.

I did a quick search on the web and discovered that the CTS-V folks have been complaining of this for a while.

For all you ZL1 guys, do you also here this? Is this normal? (This is my first supercharged vehicle, so I don't know what to expect)

-Rizzo

07fx2 · 04-30-2012, 10:10 AM

Should be no rattles in a supercharger. Can you hear it while driving?

Rizzo · 04-30-2012, 10:13 AM

Quote:

Originally Posted by 07fx2

Should be no rattles in a supercharger. Can you hear it while driving?

When the hood is close and when driving, there is no noticeable rattle. Car sounds and operates great.

I just listened to Drake's video from this weekend, and you can here it too.

Listen around 00:12 - 00:15

07fx2 · 04-30-2012, 10:23 AM

Gm was suppose to fix that with a solid isolator. Apparently not, it's not as loud as the cts vs rattle but there's got louder over time. I would take it to a dealership and complain
http://www.cadillacforums.com/forums...er-rattle.html

KKreme15 · 04-30-2012, 10:26 AM

inb4JeffMorris

fiascoes1 · 04-30-2012, 10:31 AM

I notice it more when the engine is hot.

99firehawk · 04-30-2012, 10:32 AM

Most superchargers have a mechanical noise from the internal rotors.....some louder than others.

My Magnuson 2300 has some minor internal noise at idle. but it is normal as I have heard many of the same model and they all sound the same. I imagine the Camaro Magnuson 1900 will have some minor blower noise at idle that could be thought of as a rattle I guess. Won't know for sure until I get mine or hear others up close.

Did you take the plastic cover off and try to isolate from internal blower sound to something near by?

07fx2 · 04-30-2012, 10:41 AM

Quote:

Originally Posted by 99firehawk

Most superchargers have a mechanical noise from the internal rotors.....some louder than others.

My Magnuson 2300 has some minor internal noise at idle. but it is normal as I have heard many of the same model and they all sound the same. I imagine the Camaro Magnuson 1900 will have some minor blower noise at idle that could be thought of as a rattle I guess. Won't know for sure until I get mine or hear others up close.

Did you take the plastic cover off and try to isolate from internal blower sound to something near by?

You might be right. I understand the mechanical noises but it does sound like a rattle. I hate noises lol.

Joebot8484 · 04-30-2012, 11:28 AM

It's the stock isolator that makes the rattling sound. Check out this link, the ZR1 and CTS-V guys have been replacing them during pulley swaps and snout porting.

http://www.lingenfelter.com/LPEforum...-Noise-At-Idle

Rizzo · 04-30-2012, 11:37 AM

Quote:

Originally Posted by Joebot8484

It's the stock isolator that makes the rattling sound. Check out this link, the ZR1 and CTS-V guys have been replacing them during pulley swaps and snout porting.

http://www.lingenfelter.com/LPEforum...-Noise-At-Idle

Thanks...This may just be the issue. I found a good video that shows the issue on the CTS-V. (Look at the 4:50 min mark)

This makes me wonder if we can expect to see premature wear on the components then?

Joebot8484 · 04-30-2012, 11:41 AM

It's probably the same part, I plan on changing mine out when I have the snout ported. I read about this in GM High Tech Performance Mag.

GunnyG · 04-30-2012, 11:45 AM

Quote:

Originally Posted by fiascoes1

I notice it more when the engine is hot.

Alex, that joker's faulty...better let me hold it til I can figure this thing out. LoL, I wouldn't worry...you've got warranty (and I won't when I supercharge).

Drake Heminger · 04-30-2012, 06:51 PM

I didnt know mine rattled :/ although it is my first supercharger so maybe I didnt know what to expect

Flavorwrench · 04-30-2012, 07:24 PM

It's the spring loaded isolator coupling, hence the reason the solid isolator coupling is included in the pulley upgrade. Its normal to hear this sound, don't worry. If you really want to freak out... pull the snout off the supercharger and look at the wear marks created by the clacking part. There is a ton of info about this in the Cadillac forums. I read an article a few months back where a lead design engineer justifies this entire event. If I can find it I will post the link to the interview.

04-30-2012, 10:08 AM	#1
Rizzo Drives: 2012 Camaro ZL-1 SIM Join Date: Sep 2008 Location: San Antonio, TX Posts: 454 View My Garage	Supercharger Rattle I noticed this weekend that when the car is idling and the hood is up, there is a light rattle coming from the area of the supercharger. I did a quick search on the web and discovered that the CTS-V folks have been complaining of this for a while. For all you ZL1 guys, do you also here this? Is this normal? (This is my first supercharged vehicle, so I don't know what to expect) -Rizzo __________________ =================================================

04-30-2012, 10:10 AM	#2
07fx2 Drives: 2007 F150 Join Date: Apr 2012 Location: Oklahoma Posts: 186	Should be no rattles in a supercharger. Can you hear it while driving? __________________

04-30-2012, 10:23 AM	#4
07fx2 Drives: 2007 F150 Join Date: Apr 2012 Location: Oklahoma Posts: 186	Gm was suppose to fix that with a solid isolator. Apparently not, it's not as loud as the cts vs rattle but there's got louder over time. I would take it to a dealership and complain http://www.cadillacforums.com/forums...er-rattle.html __________________

04-30-2012, 10:31 AM	#6
fiascoes1 SoCalRaceTeam new-b! Drives: 2012 ZL1/WHITE/BLACK STRIPE Join Date: Apr 2011 Location: norwalk ca Posts: 2,021	I notice it more when the engine is hot. __________________ 4B00- 2/16/12 vin 284 my build thread http://www.camaro5.com/forums/showthread.php?t=224028

04-30-2012, 11:28 AM	#9
Joebot8484 ZL1 # 1307 Drives: 2012 Camaro ZL1, 2008 Hummzilla H3 Join Date: Nov 2010 Location: Central New York Posts: 1,911 View My Garage	It's the stock isolator that makes the rattling sound. Check out this link, the ZR1 and CTS-V guys have been replacing them during pulley swaps and snout porting. http://www.lingenfelter.com/LPEforum...-Noise-At-Idle __________________ Click on my signature for my build thread

04-30-2012, 10:26 AM	#5
KKreme15 Drives: C6 Z06 Join Date: Jan 2010 Location: Dayton, MD Posts: 1,645	inb4JeffMorris

04-30-2012, 10:32 AM	#7
99firehawk Order in on 13' ZL1 vert Drives: 1999 Firehawk Convertible Join Date: Nov 2011 Location: Toronto Posts: 199 View My Garage	Most superchargers have a mechanical noise from the internal rotors.....some louder than others. My Magnuson 2300 has some minor internal noise at idle. but it is normal as I have heard many of the same model and they all sound the same. I imagine the Camaro Magnuson 1900 will have some minor blower noise at idle that could be thought of as a rattle I guess. Won't know for sure until I get mine or hear others up close. Did you take the plastic cover off and try to isolate from internal blower sound to something near by?

04-30-2012, 11:41 AM	#11
Joebot8484 ZL1 # 1307 Drives: 2012 Camaro ZL1, 2008 Hummzilla H3 Join Date: Nov 2010 Location: Central New York Posts: 1,911 View My Garage	It's probably the same part, I plan on changing mine out when I have the snout ported. I read about this in GM High Tech Performance Mag. __________________ Click on my signature for my build thread

04-30-2012, 06:51 PM	#13
Drake Heminger Drives: 2014 Stingray Z51 Join Date: Oct 2011 Location: Stafford, VA Posts: 2,951	I didnt know mine rattled :/ although it is my first supercharger so maybe I didnt know what to expect __________________ "What a coincidence, Drake returns and brings brand new ZL1's with him...." - CAM....ZL1

04-30-2012, 07:24 PM	#14
Flavorwrench Drives: 2012 ZL1 & 67 RS-SS TwinTurbo Join Date: Feb 2012 Location: Washington State Posts: 147	It's the spring loaded isolator coupling, hence the reason the solid isolator coupling is included in the pulley upgrade. Its normal to hear this sound, don't worry. If you really want to freak out... pull the snout off the supercharger and look at the wear marks created by the clacking part. There is a ton of info about this in the Cadillac forums. I read an article a few months back where a lead design engineer justifies this entire event. If I can find it I will post the link to the interview.