It's Official: The Mustang GTD Produces More Horsepower Per Liter Than A 911 GT3 RS

The Mustang GTD is a monster on its own

So, what’s the secret behind the GTD’s monstrous power? It’s not the same normal Coyote V8 from the Mustang GTD, but the same 5.2-liter supercharged V8 that made the Shelby GT500 a legend. But Ford didn’t just stop there. The engineers tinkered with it, adding a dry-sump oil system that not only boosts performance on the track but also lets the engine scream to a 7,650-RPM redline.

There’s also a smaller supercharger pulley and some tweaks to the intake and exhaust, all contributing to this lump’s rated 815 horsepower and 664 pound-feet of torque. These numbers look promising for Ford’s sub-seven-second Nurburgring run. If you don’t remember, the Porsche 918 Spyder hybrid hypercar pushes out 887 horsepower combined, just 72 more than the GTD’s claimed figures.

Ford claims the top-rated Mustang can hit a top speed of 202 mph. That’s a whopping 22 mph faster than the latest Shelby GT500. To achieve this mind-blowing velocity, the GTD uses a trick drag reduction system, much like the 992.1 911 GT3 RS. It adjusts the angle of that massive rear wing and activates flaps under the front of the car, making it slip through the air.

The Mustang GTD is on its way to demolish the 911 GT3 RS

As mentioned above, Ford was clear about its intentions when it brought the sports car we all know and love, the 911 GT3 RS, into the conversation. The carmaker stated that the GTD produces more power per liter than the GT3 RS.

If you do the math, the Mustang, with its 815 horsepower and 5.2-liter displacement, produces a staggering 156.7 horsepower per liter. In comparison, the latest 911 GT3 RS boasts 518 horsepower from a 4.0-liter engine and generates 129.5 horsepower per liter. Additionally, the Mustang puts down almost double the torque figures (664 pound-feet) produced by the 911 GT3 RS (342 pound-feet). Plus, the Mustang has a higher 18 mph top speed rating than the 911 in question.

So, yes, the Mustang has the advantage here. However, does it weigh as light as the 911 GT3 RS? Well, the numbers aren’t out yet, but the GTD features a carbon tub, a lightweight eight-speed DCT, and a carbon drive shaft that hangs at the rear for a 50-50 weight distribution. We’re unsure if the Mustang GTD will hit a similar 3,268-pound figure as the 911 GT3 RS, and the Mustang should be bigger than the 911. However, the Ford will surely have a better power-to-weight ratio than the track-bred Porsche, which could make it faster around the Green Hell.