11,500 pound-feet is the wheel torque; the motor torque is less than 10-percent of that figure

GMC revealed the Hummer EV and let out a few details about the supertruck. In all honestly, it is quite impressive on paper, although it doesn’t offer the same value proposition as, say, the upcoming Cybertruck. This is on paper comparison given that we’ve seen none of these trucks in flesh. GMC announced that the Hummer EV, in the top trim, will make 1,000 horses and 11,500 pound-feet of torque. The torque took a lot of people by shock because it seems unrealistic. If you thought the same, well, you’re kinda right, because there is a catch to this figure.

The automaker announced the torque at wheels instead of the torque at motors, and the latter is way less. Jason Fenske from Engineering Explained broke down the math and concluded that the motor torque is around 1,000 pound-feet of torque. That’s quite a bit less in comparison, but it is not a minuscule number by any means and is on par with other gas- and diesel-powered heavy trucks on the market.

What’s The Fuss About?

Engineering Explained Cracks Through GM's Sketchy Hummer EV Torque Figure
- image 943665

When GMC announced the specs of the Hummer EV, they revealed the rating at the wheel, which isn’t the measurement generally used. Despite GMC revealing the gear ratios of this tri-motor setup model, it hasn’t announced the torque figure. But, thanks to Jason, we know what to expect.

The tri-motor setup includes one at the front and two at the rear. The front gearbox reduction has a ratio of rated at 13.3:1 and the rear gear ratio is rated at 10.5:1.
Engineering Explained Cracks Through GM's Sketchy Hummer EV Torque Figure
- image 943651

As revealed by the automaker, the wheel torque stands at 11,500 pounds. The motor torque multiplied by the gear ratio brings us to this figure. But, every other company announced the motor torque, which is the measurement that’s supposed to be used to let people compare it to the other vehicles. So, by doing the math, Fenske determined that the total motor torque comes to around 1,000 pound-feet of torque, the same as its horsepower rating, and a figure that’s a lot more believable.

Engineering Explained Cracks Through GM's Sketchy Hummer EV Torque Figure
- image 943659
2021 Hummer EV lineup
Hummer EV2 Hummer EV2x Hummer EV3x Hummer EV Edition 1
Price $79,995 $89,995 $99,995 $112,595
Available Spring 2024 Spring 2023 Fall 2022 Fall 2021
Powertrain 2 motors 2 motors 3 motors 3 motors
Range +250 miles +300 miles +300 miles +350 miles
Horsepower 625 HP 625 HP 800 HP 1000 HP
Torque 7,400 LB-FT 7,400 LB-FT 9,500 LB-FT 11,500 LB-FT

Should You Pick The Hummer EV Over A Fuel-Powered Heavy-Duty Truck?

Engineering Explained Cracks Through GM's Sketchy Hummer EV Torque Figure
- image 943664

The Hummer EV now makes the best power figures when compared to any other GMC vehicle. If we speak about the torque alone, the Sierra HD with the 6.6-liter Duramax engine makes 910 pound-feet of torque. But, the difference here will seem like a lot more because all the torque is available right from the beginning. We’re yet to hear about the towing and payload capacities on this electric supertruck to see if the specs justify the premium price tag and if it’s worth considering it over the internal combustion-engined heavy-duty trucks. The long wait for the deliveries makes matters worse, but that’s a different story.

Final Thoughts

Engineering Explained Cracks Through GM's Sketchy Hummer EV Torque Figure
- image 943659

This isn’t a small number either, but perhaps in comparison, it doesn’t have the same weight. We’ll have to see how long it will take GMC to announce this to the public. But, apart from GMC’s sketchy way of announcing the torque figure, we are still quite impressed with the 1,000 horsepower and 1,000 pound-feet of torque. What do you have to say about this? Share your thoughts with us in the comments section below.

Sidd Dhimaan
Associate Editor and Truck Expert - sidd@topspeed.com
Sidd joined the Topspeed.com team in 2017 as an intern and in less than a year he earned a full-time position as an associate editor and junior automotive expert. He is currently our pickup truck expert and focuses his attention on heavy-duty and off-road vehicles.  Read More
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