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Old 09-02-2013, 08:56 PM   #41 (permalink)
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Originally Posted by tjts1 View Post

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Old 09-03-2013, 05:46 PM   #42 (permalink)
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Originally Posted by tjts1 View Post
That's a little more like it. Although I'm not sure how official the numbers are.

So, you may have one car then.

However, I'm still not sure. There was a reason I stated it the way I did:
Originally Posted by darcane
I would be surprised if there is any stock, production car that can post faster lap times at the Nurburgring that will use less gas on the drive home.
EPA testing is done with a full charge on the battery pack. You won't have that when you are done racing...
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Old 09-11-2013, 01:30 PM   #43 (permalink)
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l just read the LT-1 SAE paper. fuel economy peaks with the 5.3L with AFM (very little actual benefit).

it truly is a brilliant combustion system. consistently good combustion efficiency and stability at all rpm, and under all loads. some tricks they used are impossible with a 4V chamber.

high compression > turbo. under high loads, turbos run very rich to protect the engine. the LT-1 is efficient under most conditions.

it's EPA rated at 29 mpg, whereas the C6 was rated 26 mpg. if C6 can get 30+ mpg real world, then the C7 should be mid-30s. A 5.3L C7 might be rated at 30 mpg (the paper revealed a <0.5 mpg difference!).

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