nationwide backorder on plenum gasket?!?

[16floz470ml]

Originally Posted by sportyb24

Mine is makin a knock type clatter noise rite on top of the supercharger and only have500 miles they are comin to pick it up Thursday .. Guess mine is messed up to unless ur suppose to have that noise?

I have a similar noise. I think that if you get under the car you find that the noise is coming from the transmission/clutch area. Manual transmission cars are like this.

[OldScoolCamaro]

Originally Posted by 16floz470ml

I have a similar noise. I think that if you get under the car you find that the noise is coming from the transmission/clutch area. Manual transmission cars are like this.

....noises abound with the ZL1....in every area of mechanical operation....if they are persistent and get worse over time then it's time for concern...

[sportyb24]

Originally Posted by 16floz470ml

I have a similar noise. I think that if you get under the car you find that the noise is coming from the transmission/clutch area. Manual transmission cars are like this.

My SS didn't make the noise and was a m6

[OldScoolCamaro]

...we're talkin' ZL1 mate, not SS ....big beefy difference between the gear....

[sportyb24]

Originally Posted by OldScoolCamaro

...we're talkin' ZL1 mate, not SS ....big beefy difference between the gear....

Yeah I know.. But still there shouldn't be any noise .. You don't hear it in the vette's. And they're BEEFY.. Lol

[DangerZL1]

Originally Posted by sportyb24

Mine is makin a knock type clatter noise rite on top of the supercharger and only have500 miles they are comin to pick it up Thursday .. Guess mine is messed up to unless ur suppose to have that noise?

The supercharger coupling is really noisy on these cars. I suspect that is what you're hearing and its explained in a service bulletin. The only fix is to have the LS9 coupling installed, but the dealer won't do it since the supercharger is pre assembled from Eaton. This is the reason everyone who has a smaller supercharger pulley installed changes it out. The part is only about $50, but I was quoted about $300 to change only the bushing by a performance shop in my area.

[sportyb24]

Originally Posted by DangerZL1

The supercharger coupling is really noisy on these cars. I suspect that is what you're hearing and its explained in a service bulletin. The only fix is to have the LS9 coupling installed, but the dealer won't do it since the supercharger is pre assembled from Eaton. This is the reason everyone who has a smaller supercharger pulley installed changes it out. The part is only about $50, but I was quoted about $300 to change only the bushing by a performance shop in my area.

Can you show me a pic of what coupling?

[joes407]

gasket came in, just picked up car!

[sportyb24]

Originally Posted by joes407

gasket came in, just picked up car!

Awesome!!!

[DangerZL1]

Originally Posted by sportyb24

Can you show me a pic of what coupling?

Here is a pic of it from Lingenfelter's website. It fixes the problem, but most folks change the upper pulley out to a smaller one since the labor is almost the same. The spring on the original one eats into the shaft of the supercharger by design, and this is the noise you're hearing.

[sportyb24]

Originally Posted by DangerZL1

Here is a pic of it from Lingenfelter's website. It fixes the problem, but most folks change the upper pulley out to a smaller one since the labor is almost the same. The spring on the original one eats into the shaft of the supercharger by design, and this is the noise you're hearing.

Changing the pulley size would change boost?
And is this a simple fix?