Chevrolet says its new 10-speed auto box is “lightning-fast” image

GM’s unit makes a bold claim that its new 10-speed automatic transmission has proven to be way faster than Porsche’s PDK auto box.

Chevrolet promises that its 2017 Camaro ZL1 will offer blazing performances if the mighty 6.2-liter LT4 V8 engine delivering 640 horsepower is to be matted with the brand’s new Hydra-Matic 10-speed automatic transmission. “There is simply nothing like the experience offered with the new 10-speed automatic in the Camaro ZL1,” Aaron Link, ZL1 lead development engineer, brags about it. “It delivers nearly instantaneous, lightning-fast shifts that alter your perception of what an automatic transmission can offer in a high-performance vehicle – whether you’re on the street, drag strip or road course.” But how fast is it really? Well, Chevrolet said that tests showed that ZL1 fitted with the 10-speed has faster shift times than the Porsche PDK dual-clutch transmission. The company pushed forward and revealed the 1-2 upshift to be 36-percent quicker than the PDK, while the 2-3 and 3-4 upshifts are 27-percent and 26-percent faster, respectively.

The all-new 10 speed automatic transmission is the first 10 spee

The overall performance and efficiency are due primarily to the 10-speed’s wider 7.39 overall gear ratio spread, with an aggressive first gear ratio of 4.70. Smaller steps between the gears also help the engine keep the optimal speed, especially when attacking the curbs. “The gear ratios are so tightly spaced that the transmission is in the right gear and the engine is at the best rpm for transitions from corners to straights,” Link said. “And with the power from the ZL1’s supercharged LT4 engine, the force you feel in your seat as you accelerate out of a turn will put a grin on your face every time.” Let’s see what Porsche has to say…

2017 Chevrolet Camaro ZL1