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Old Jan 14, 2014 | 06:38 PM
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Default not final output

The estimated 625-horsepower figure quoted for Chevy’s new 6.2-liter supercharged LT4 at the Detroit Auto Show unveiling of the upcoming 2015 Corvette Z06 is likely to spiral upwards when the final production model hits the dealerships early next year, according to the engine’s chief engineer.

“We fully expect to beat that number, but we came up with a safe estimate for the show,” boasts Jordan Lee, program manager for GM’s small-block program, also noting that the estimated 634 lb-ft of peak torque should escalate, as well.
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Old Jan 14, 2014 | 10:38 PM
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Default Deja Vu

Originally Posted by fastzl1
The estimated 625-horsepower figure quoted for Chevy’s new 6.2-liter supercharged LT4 at the Detroit Auto Show unveiling of the upcoming 2015 Corvette Z06 is likely to spiral upwards when the final production model hits the dealerships early next year, according to the engine’s chief engineer.

“We fully expect to beat that number, but we came up with a safe estimate for the show,” boasts Jordan Lee, program manager for GM’s small-block program, also noting that the estimated 634 lb-ft of peak torque should escalate, as well.

This sounds so familiar. Isn't this very similar to what they said right before the Stingray came out? "We're just guessing low until we finish development". I wouldn't spend too much money betting on "upward spiraling". I would bet on what you see is what you'll get.
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Old Jan 14, 2014 | 10:43 PM
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Its gonna end up being 627hp and 638lb-ft.lol
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Old Jan 15, 2014 | 01:58 PM
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I recall the Ford had a similar situation with the 2013 GT500. Initial estimates were 650 horse, but after SAE testing, it went to 662 horse. I don't doubt the LT4 numbers will grow!!
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Old Jan 15, 2014 | 02:11 PM
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Camaro ZL1 was announced at the Chicago auto show with 550hp. SAE tested at 580hp.

Don't think we'll get that big of a jump, but I wouldn't be surprised to see the final numbers eclipse the ZR1 output.
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Old Jan 15, 2014 | 02:22 PM
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Originally Posted by sd7ss
This sounds so familiar. Isn't this very similar to what they said right before the Stingray came out? "We're just guessing low until we finish development". I wouldn't spend too much money betting on "upward spiraling". I would bet on what you see is what you'll get.
Those wacky guys at GM, ya just can't believe anything they say. Remember what they said about the Stingray?........oh wait everything they said turned out to be true..........
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Old Jan 15, 2014 | 09:56 PM
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I'm happy with the numbers GM is quoting. Whatever the final numbers end up being they will be 75hp - 100hp more than my pathetic guess of 550hp that I made back in November.

Then again like I stated back in November, I'd rather guess low & be pleasantly surprised than to guess too high & be disappointed.
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Old Jan 15, 2014 | 10:54 PM
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Where did that quote come from?
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Old Jan 15, 2014 | 10:58 PM
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Wouldn't surprise me if they match or slightly surpass the zr1 numbers.
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Old Jan 15, 2014 | 11:55 PM
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Anything plus is just gravy.
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