Grand Cherokee SRT Hallmarks: Brake cooling ducts.

Fresh air is essential in making big power. It’s also a key element in bringing the 5,150-pound Grand Cherokee SRT to a safe and predictable stop.
Posted on Jun 28, 2012

Brake cooling ducts play a key role in the exceptional braking system of the Grand Cherokee SRT.

Fresh air is essential in making big power. It’s also a key element in bringing the 5,150-pound Grand Cherokee SRT to a safe and predictable stop. With the help of forced-air cooling brake ducts, the performance SUV provides exceptional stopping power time after time by keeping its cool.

Unique ducts housed in the bottom of the front belly pan channel air directly to the front brake components. Fresh air induction helps keep the brake components at an acceptable temperature - important for maintaining a firm brake pedal and maximum stopping power. The Grand Cherokee has a high center of gravity and the front brakes account for 75 percent of the braking under normal conditions. This is why the front brakes are larger than those in the rear.

"We are Street and Racing Technology," said Jeff Roselli, Lead Development Engineer for the Grand Cherokee SRT. "There is no race car out on the track today that doesn't have forced-air brake cooling. Every race vehicle that is worthy of racing on a track wheel-to-wheel has forced-air to the brakes. We bring racing technology to the street and the forced-air brake cooling certainly is a big part of that."

More air is supplied to the Grand Cherokee SRT's front rotors than any other vehicle in the SRT lineup. Its height the key to this, providing a larger area to pool air from when cooling the brakes. Cars like the Challenger SRT have a shorter front end and less area to capture air.

"The Grand Cherokee SRT has brake cooling because it's important. If you take the vehicle to the track, the brakes will be repeatable and dependable," said Roselli. "We are stopping 1,000 more pounds than a car in an even shorter distance."

In testing, 60 mph to a dead stop is accomplished in just 116 feet, quite an accomplishment for an SUV.

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