It’s no secret that the mid-engine Corvette’s switch to a dual-clutch transmission (DCT) plays a key role in the new Stingray’s ability to go 0-60 in less than three seconds.
Thanks to our friends at the Mid Engine Corvette Forum, we’re learning more details about this game-changing transmission through an official release from its manufacturer TREMEC.
Perhaps the biggest news about the DCT is its ability to move from gear to gear in less than 100 milliseconds, thanks to the dual clutches that engage and release in perfect computer-controlled synchronization – all without interrupting torque.
“The lightning-fast shift time is made possible by the integrated design approach with advanced TREMEC-developed software algorithms, our transmission controller, proprietary clutch friction material, and world-famous hydraulic controls,” said Antonio Herrera, TREMEC Managing Director.
The new transmission – the only one available for the 2020 Corvette – will allow the Stingray to take full advantage of all 490 or 495 of its horsepower, providing continuous torque over a wide ratio range for both spirited high-performance driving and efficient highway driving.
TREMEC says the wide-ratio DCT offers a low first gear ratio for exciting launch application and a tall eighth gear for quiet and comfortable highway cruising. In between, the company says ratio steps 2-7 are “perfectly matched to make use of the engine’s strong and broad torque curve for optimal performance on or off the track.”
Paddle shifters will add to the driving experience as enthusiasts are able to choose the preferred gear. According to TREMEC, the performance shift algorithms are so driver-focused they can tell when you’re doing spirited driving and will hold lower gears longer for more throttle response.
The transmission also offers torque capacity up to 590 lb-ft, well below the Stingray’s 470 lb-ft, and better yet, more powerful versions are said to be in development – good news for enthusiasts waiting for the higher-performance C8 Corvettes expected to be offered eventually.
If you’re wondering about the durability of the DCT, TREMEC says don’t worry. “Options for the first two DCT variants include a mechanical limited-slip differential or electronically-actuated limited-slip differential. Both differentials feature active, forced lubrication ensuring long life and efficiency,” said Matt Memmer, TREMEC Engineering Director.
Furthermore, TREMEC says the new TR-9080 DCT family combines their experience in manufacturing robust high-performance transmissions with leading-edge mechatronics and software. “This new transmission represents a massive investment in resources to create the best DCT in the world,” commented Global Business Development Director Dave Hadley.
In sum, the new DCT offers lightning-fast shift times; efficient ratios, packaging and mass; and an integrated limited-slip differential.
It all adds up to what promises to be a world-class transmission for a world-class mid-engine Corvette.
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