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Old 04-02-2013, 08:18 PM   #15
DrkPhx

 
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Drives: 2013 Triple Black ZL1 / 2006 TB SS
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Quote:
Originally Posted by Batmanntexas View Post
So, is the verdict that the stock clutch in the ZL1 can handle 700RWHP? If that's the case, I'd be looking at that as a replacement for my 2012 SS clutch. Thanks!!
Browse the CTS-V forums. They use the same clutch and it seems the general consensus is 650 rwhp is the point where is starts slipping. Of course mileage and driving style play a role in determining clutch life. I have a friend with an 09 CTS-V with 562 rwhp and 44K miles and his clutch is starting to slip.

Here is some additional information I found about the ZL1 clutch:




Quote:
The present TR-6060-equipped Camaro with the naturally aspirated LS3 has a single-disc clutch that's good to around 500 hp or so (about a 20 percent cushion over the stock engine's output). Our inside sources tell us the supercharged LSA engine used in the Caddy CTS-V, as well as the forthcoming ZL1 Camaro, has or will have a dual-disc clutch with about 20 percent more holding power (about 700hp capacity).



From the Corvette forum:




Quote:
We use the clutch pedal return spring on the stock C6 clutch and on ZR1/LS9 clutch upgrades as well. We also have a similar product designed for the 2010-2013 Camaro and use it with the stock clutch and the twin disk ZR1/LS9 clutch.
Quote:

The clutch pedal return spring is NOT the same as the over-center spring you already have on the Corvette pedal. That spring is not designed to return the pedal to the released position.

FYI - the ZL1 Camaro doesn't need one. GM put a clutch return spring on the ZL1 from the factory (in addition to the over-center spring). Nice to see different companies coming up with the same solution. 8-)
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Old 04-03-2013, 10:41 AM   #16
ace32x
 
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good info!
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Old 04-04-2013, 06:55 PM   #17
Batmanntexas
 
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DrkPhx -- Thanks for the info! I'll definitely check out the CTS-V forums, but it sounds like it'll handle what I need.
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