2013 zl1 supercharger rattle - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Igor95 · 08-27-2019, 11:25 PM

Had the supercharger replaced about a month or two ago, now this one is rattling also, just not as often. I get on the road and floor it, and the boost doesn't hit over 4-5 psi. Now the question is, does the boost kick in all at once when you get on it or at a certain rpm? Looking to bring it back in for another replacement... Thank you.

RobZL1 · 08-28-2019, 06:20 AM

Probably just need to get the bypass valve properly adjusted

Igor95 · 08-28-2019, 06:33 AM

Aside from the boost issue, I'm concerned about the rattling more than anything. I guess I'll take it in, and ask to double check the bypass valve. Thanks.

ABM Camaro · 08-28-2019, 07:38 AM

I can hear mine starting to rattle which has me thinking it want to switch to a smaller pulley and solid isolator to gain a little more boost and get rid of the rattle..

Has changing the spring loaded isolator to a solid unit worked for everyone ?

Did you change injectors also ?

DRKS1D3 · 08-28-2019, 07:50 AM

Go to your dealer and they will swap out the stock Eaton blower for one with a solid isolator for free. The new blower is covered under a warranty for several years.

silversleeper · 08-28-2019, 11:21 AM

Quote:

Originally Posted by ABM Camaro

I can hear mine starting to rattle which has me thinking it want to switch to a smaller pulley and solid isolator to gain a little more boost and get rid of the rattle..

Has changing the spring loaded isolator to a solid unit worked for everyone ?

Did you change injectors also ?

OP-The boost comes in right away. It doesn't need more time to spin faster like a turbo. IDK 1/2 second? to come up to boost with throttle opened and bypass valve to switch closed and air start moving at higher velocity through the intake. Almost instantly by how it feels or by the time you look at the gauge.

Why change injectors question?

Unless there is a bad injector determination, missfire leak codes etc

No for preventative maintenance
No for wear
No to eliminate supercharger rattle
Yes to flow more fuel needed for next level of mods.
Good injectors with documented flow information needed to get a precise tune cost $$ so not something to change for no reason. Factory injectors are not known to be problematic so IDK why you asked.

jvervoren · 08-28-2019, 12:16 PM

quick question here that is kinda on topic.. I just got my ZL1 last weekend.. What should be stock boost for the car?

RobZL1 · 08-28-2019, 12:34 PM

8-9 psig in stock form

DRKS1D3 · 08-28-2019, 12:34 PM

Quote:

Originally Posted by jvervoren

quick question here that is kinda on topic.. I just got my ZL1 last weekend.. What should be stock boost for the car?

7-8psi

Igor95 · 08-28-2019, 07:19 PM

@DRKS1D3 The dealer replaced the whole supercharger about a month ago, according to the repairs, I don't think they put in a solid isolator.

RobZL1 · 08-28-2019, 07:58 PM

In theory, all of the replacement superchargers have a solid isolator in them already. You can always pull the belt off and move the supercharger pulley by hand back and forth to see how much slop you have, to determine if that is actually the culprit.

DRKS1D3 · 08-29-2019, 06:17 AM

Quote:

Originally Posted by Igor95

@DRKS1D3 The dealer replaced the whole supercharger about a month ago, according to the repairs, I don't think they put in a solid isolator.

Quote:

Originally Posted by RobZL1

In theory, all of the replacement superchargers have a solid isolator in them already. You can always pull the belt off and move the supercharger pulley by hand back and forth to see how much slop you have, to determine if that is actually the culprit.

Correct RobZL1. The replacement Eaton blowers should all have a solid isolator. Igor, do what Rob said and check it for slop. My Dad had his replaced a few years back and has been rattle-free ever since. The original blowers simply had a poor design. Good luck!

Juiced1 · 08-29-2019, 08:48 AM

It's all about the spring loaded isolator that connects the snout to the supercharger itself. I can't believe GM hasn't replaced the part yet with something that actually works. They just keep swapping the blowers out and people run into the same issue months later like op here. We have solid isolators in stock if anyone needs one and we can also do the work. If you are having us swap out a pulley there is no charge for the isolator install.

RobZL1 · 08-29-2019, 10:23 AM

Unless they went back to a spring-loaded isolator for some reason, all of the replacement superchargers (and most 2014 cars and all 2015 cars) have a solid isolator from GM. Did something change?

08-27-2019, 11:25 PM	#1
Igor95 Drives: N/A Join Date: Jan 2017 Location: New York Posts: 51	2013 zl1 supercharger rattle Had the supercharger replaced about a month or two ago, now this one is rattling also, just not as often. I get on the road and floor it, and the boost doesn't hit over 4-5 psi. Now the question is, does the boost kick in all at once when you get on it or at a certain rpm? Looking to bring it back in for another replacement... Thank you.

08-28-2019, 06:20 AM	#2
RobZL1 fo'shizZL1 Drives: 2017 ZL1 Join Date: Aug 2017 Location: ATL Posts: 1,281	Probably just need to get the bypass valve properly adjusted __________________ 2017 ZL1 M6 Black \| Maggie 2650 // 103TB // Big Gulp Past Rides- 2014 ZL1 M6 Red Hot \| Tons of mods 2004 CTS-V M6 Silver \| Many mods 1995 Corvette M6 Torch Red \| A few more mods 1992 Camaro M5 White \| A few mods

08-28-2019, 07:50 AM	#5
DRKS1D3 Drives: '17 Corvette Grand Sport M7 Join Date: May 2012 Location: Pennsylvania Posts: 3,748	Go to your dealer and they will swap out the stock Eaton blower for one with a solid isolator for free. The new blower is covered under a warranty for several years. __________________ MY RIDE: 2017 CORVETTE GRAND SPORT--TRIPLE BLACK, 7 SPEED MANUAL, VARARAM TCR-7 INTAKE, BORLA CATLESS X-PIPE, CARBON FIBER STAGE 2 AERO, MGW SHORT-THROW SHIFTER SOLD2011 TRIPLE BLACK SS CONVERTIBLE--6 SPEED MANUAL, MANY MODS, 455 RWHP/435 RWTQ DAD'S RIDE: 2012 ZL1 #1866--BLACK, 6 SPEED MANUAL, EXPOSED CF HOOD, POLISHED WHEELS, SUNROOF, ROTO-FAB INTAKE "Silly Americans, taking from the rich and giving to the poor only works in fairy tales. Success is earned here!".

08-28-2019, 12:16 PM	#7
jvervoren Drives: 2012 Silver ZL1 M6 Join Date: May 2019 Location: Charlestown IN Posts: 64	quick question here that is kinda on topic.. I just got my ZL1 last weekend.. What should be stock boost for the car? __________________ 2012 Chevy Camaro ZL1 M6 504whp/517tq 1997 Honda Accord AKA Beater with the heater. The daily 2015 RAM 1500 (sold) 2014 Mustang GT bolt ons and spray (sold)

08-28-2019, 12:34 PM	#8
RobZL1 fo'shizZL1 Drives: 2017 ZL1 Join Date: Aug 2017 Location: ATL Posts: 1,281	8-9 psig in stock form __________________ 2017 ZL1 M6 Black \| Maggie 2650 // 103TB // Big Gulp Past Rides- 2014 ZL1 M6 Red Hot \| Tons of mods 2004 CTS-V M6 Silver \| Many mods 1995 Corvette M6 Torch Red \| A few more mods 1992 Camaro M5 White \| A few mods

08-28-2019, 06:33 AM	#3
Igor95 Drives: N/A Join Date: Jan 2017 Location: New York Posts: 51	Aside from the boost issue, I'm concerned about the rattling more than anything. I guess I'll take it in, and ask to double check the bypass valve. Thanks.

08-28-2019, 07:38 AM	#4
ABM Camaro Drives: 2013 ZL1 A6 Camaro Join Date: Jun 2013 Location: Florida Posts: 171	I can hear mine starting to rattle which has me thinking it want to switch to a smaller pulley and solid isolator to gain a little more boost and get rid of the rattle.. Has changing the spring loaded isolator to a solid unit worked for everyone ? Did you change injectors also ?

08-28-2019, 07:19 PM	#10
Igor95 Drives: N/A Join Date: Jan 2017 Location: New York Posts: 51	@DRKS1D3 The dealer replaced the whole supercharger about a month ago, according to the repairs, I don't think they put in a solid isolator.

08-28-2019, 07:58 PM	#11
RobZL1 fo'shizZL1 Drives: 2017 ZL1 Join Date: Aug 2017 Location: ATL Posts: 1,281	In theory, all of the replacement superchargers have a solid isolator in them already. You can always pull the belt off and move the supercharger pulley by hand back and forth to see how much slop you have, to determine if that is actually the culprit. __________________ 2017 ZL1 M6 Black \| Maggie 2650 // 103TB // Big Gulp Past Rides- 2014 ZL1 M6 Red Hot \| Tons of mods 2004 CTS-V M6 Silver \| Many mods 1995 Corvette M6 Torch Red \| A few more mods 1992 Camaro M5 White \| A few mods

08-29-2019, 08:48 AM	#13
Juiced1 Account Suspended Drives: 2012 2SS CAMARO 45th Join Date: Apr 2011 Location: St. Charles, IL Posts: 18,663	It's all about the spring loaded isolator that connects the snout to the supercharger itself. I can't believe GM hasn't replaced the part yet with something that actually works. They just keep swapping the blowers out and people run into the same issue months later like op here. We have solid isolators in stock if anyone needs one and we can also do the work. If you are having us swap out a pulley there is no charge for the isolator install.

08-29-2019, 10:23 AM	#14
RobZL1 fo'shizZL1 Drives: 2017 ZL1 Join Date: Aug 2017 Location: ATL Posts: 1,281	Unless they went back to a spring-loaded isolator for some reason, all of the replacement superchargers (and most 2014 cars and all 2015 cars) have a solid isolator from GM. Did something change? __________________ 2017 ZL1 M6 Black \| Maggie 2650 // 103TB // Big Gulp Past Rides- 2014 ZL1 M6 Red Hot \| Tons of mods 2004 CTS-V M6 Silver \| Many mods 1995 Corvette M6 Torch Red \| A few more mods 1992 Camaro M5 White \| A few mods