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Old 07-11-2011, 07:47 PM   #1
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Rumor: SAE testing complete, numbers "north of 570 HP"
Quote:
Ever since the pre-production ZL1 Camaro was revealed, speculation has run rampant as to the final numbers for horsepower and torque for this monster Chevy. With an engine based on the Cadillac CTS-V’s supercharged LSA powerplant, the odds strongly favored advertised output in the same ballpark as the Caddy’s 556 ponies and 551 pound-feet. However, we’ve also heard rumors that GM intentionally turned down the wick on the LSA as utilized in the CTS-V to keep it from overshadowing the Corvette ZR1′s LS9, which is rated at 638 horsepower and 604 pound-feet.






While the LSA makes do with a smaller 1.9 liter supercharger (compared to the LS9′s 2.3 liter unit) and a 9.0:1 compression ratio instead of 9.1:1, the higher hoodline on the CTS-V (and presumably the ZL1 as well) allows for a taller intercooler/intake manifold package, and more design freedom to optimize flow. The CTS-V’s LSA puts it in a class of its own among luxury performance cars, but the ZL1 will have to fight it out directly against Ford’s next Shelby GT500, which is rumored to have a 650 horsepower turbocharged powerplant.








But enough teasing – We have just heard an unconfirmed but extremely credible rumor that the just-completed SAE testing for the ZL1′s powerplant puts the number “North of 570 horsepower,” and that an official figure is imminent. Stay tuned as we beat the bushes for confirmation and the actual results…

http://www.lsxtv.com/features/rumor-...l1-hp-numbers/

Anybody wanna guess what the final number will be, now that we know it will beat the CTS-V?
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Old 07-11-2011, 07:48 PM   #2
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Old 07-11-2011, 07:54 PM   #3
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I am sticking with my original guess of 585HP.
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Old 07-11-2011, 07:57 PM   #4
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Old 07-11-2011, 07:57 PM   #5
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Quote:
Originally Posted by Paul Huizenga View Post
http://www.lsxtv.com/features/rumor-...l1-hp-numbers/

Anybody wanna guess what the final number will be, now that we know it will beat the CTS-V?
Interesting article ...sheds some "unconfirmed" light on matters. The prediction of horsepower was already done in the previously listed thread below.

http://www.camaro5.com/forums/showthread.php?t=155569
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Old 07-11-2011, 08:05 PM   #6
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Originally Posted by OldJedi View Post
I am sticking with my original guess of 585HP.
Ditto
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Old 07-11-2011, 08:10 PM   #7
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Very nice, I'm keeping my unrealistic hopes here and saying 600 horsepower.
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Old 07-11-2011, 08:29 PM   #8
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I remember how they did it on "Let's Make a Deal" so I'm saying 586.

...

What did I win? A HECK of a beastly ZL1 !

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Old 07-11-2011, 08:59 PM   #9
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583
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Old 07-11-2011, 09:04 PM   #10
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Old 07-11-2011, 09:22 PM   #11
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Old 07-11-2011, 09:30 PM   #12
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556 + 6 HP for the dual stage exhaust = 562
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Old 07-11-2011, 09:39 PM   #13
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601HP!! Because it needs to smash the GT500!
"North of 570HP". Now we know for sure...the base Vette will be seeing ZL1 tailights. I like that!
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Old 07-11-2011, 09:57 PM   #14
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556 + 6 HP for the dual stage exhaust = 562
Better be better.
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