SRT® Hallmarks: Enduring brake testing leads to improved performance.

SRT braking systems are tested and re-tested in real world and extreme race circuit environments prior to receiving approvals from engineers. This relentless scrutiny results in a top-notch finished product for owners.
Posted on Dec 04, 2012

SRT® braking systems are tested and re-tested in real world and extreme race circuit environments prior to receiving approvals from engineers. This relentless scrutiny results in a top-notch finished product for owners. The current-generation Grand Cherokee SRT has the highest curb weight of any SRT to-date, but its massive brake system and countless hours of testing result in stopping distances shorter than most would expect.

The enemy of any performance brake system is the onset of fade. Cooling ducts and heat dissipation methods are in play to help thwart the issue. However, a strict goal must be set. "Fade resistance targets were developed that every SRT must meet," said Grand Cherokee SRT chief engineer Jeff Roselli. Bringing vehicles to a halt from 60 and 100 mph in an extremely short distance is a chief objective at SRT, completing the task in succession is a mandate.

When travelling at 60 mph, the Grand Cherokee SRT does not experience any symptoms of fade during any of the first 21 stops. One step further, the system will also not incur fade for the first six stops from 100 mph. With capabilities beyond anything the average owner will ever encounter, the Grand Cherokee SRT is engineered for braking situations beyond what the average consumer can fathom.

"Anything that accelerates hard has to stop just as hard," notes Roselli. Outfitted with the powerful 6.4-liter HEMI® V-8, achieving this goal was not necessarily an easy task.

Track testing is a necessity in developing any track-worthy vehicle. GingerMan Raceway in South Haven, Michigan, serves as the benchmark for SRT track testing. The 2.14-mile torturous road course makes for the perfect facility to test brake fade and wear. Six laps without fade is the minimum any SRT must achieve prior receiving approval. The Grand Cherokee SRT completes seven laps prior to fade setting in, raising the bar at SRT.

Only after a successful completion of tests at GingerMan was the Grand Cherokee SRT prepared to take on the world's most enduring track. "Nurburgring is the most torturous track in the world. The Grand Cherokee SRT maintained performance throughout," affirmed Roselli. The Grand Cherokee SRT completed all 12.9 miles of the unforgiving "Green Hell" with no signs of brake fade, a true testament to its abilities.

This battery of brake performance tests are designed to subject the vehicle to more torture than customers will ever likely encounter, ensuring a better, higher-performing vehicle. The end result is the highest-performing Grand Cherokee SRT to-date.

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