2020 Corvette C8 Unveiled

GRtak

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The engine seems to be more powerful than suggested.

https://www.motortrend.com/news/2020-chevrolet-corvette-c8-power-dyno/

How Much Power Does the 2020 Chevrolet Corvette Really Make? We Take it to the Dyno and Find Out

The speedometer on the screen reads 150 mph, but the front wheels are not moving at all. Once the engine noise winds down and the wheels stop spinning, the numbers we're looking for pop up on the screen—558 hp and 515 lb-ft of torque at the wheels. "We've got a hot rod!" says international bureau chief Angus MacKenzie, who has been standing next to me all this time.
We're in shock. A quick math check reveals that's an estimated 656 hp and 606 lb-ft of torque at the crank if we assume a 15-percent drivetrain loss—way over the 495 hp and 470 lb-ft that Chevy claims. (That 15 percent represents the power consumed by everything between the engine crankshaft and the drive wheels, including inertia of all the spinning parts, power to run the hydraulic pump in an automatic or twin-clutch transmission, the drag that occurs when gears spin through lubricating oil, friction between the gear teeth, etc. It's an educated guestimate frequently used across the industry for modern light-duty automatic transmissions—manuals experience slightly smaller losses; older or heavier-duty automatics slightly larger ones.)
This is just a short bit from the article, but you get the point. The article is worth a full read.
 

prizrak

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The engine seems to be more powerful than suggested.

https://www.motortrend.com/news/2020-chevrolet-corvette-c8-power-dyno/

How Much Power Does the 2020 Chevrolet Corvette Really Make? We Take it to the Dyno and Find Out
This is just a short bit from the article, but you get the point. The article is worth a full read.
Ha! I was right they did underrate the shit out of it and there was no way they coulda been that quick to 60 with the stated power/torque.
 

GRtak

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I knew that would make you happy.

It is not surprising, GM has a long history of low balling power figures, especially when it comes to the Corvette.

Edit:

GM also has a history of sneaking in a more powerful engine to magazines and reviewers.
 

prizrak

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I knew that would make you happy.

It is not surprising, GM has a long history of low balling power figures, especially when it comes to the Corvette.
Awww you care :p

Yeah a lot of companies under rate their power numbers, from reports about my car it was also somewhat underrated from the factory just not by that much. I do tend to take a lot of these tests with a grain of salt, you can do a lot of tuning on the dyno to show different numbers, not to mention there is always going to be a difference between a car running from cold or from warm, ambient temp and pressure, and so on... I remember seeing an article that explained it all as it pertained to aftermarket tunes, where you will get some crazy claim like +50 hp* with nothing but a CAI and exhaust in addition to the tune

*Not too far off on turbos but when they claim that for NA motors...
 
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