posted in Autofan New Vehicles section April 12, 2017

2018 Jeep® Grand Cherokee Trackhawk - A 707-Horsepower Beast

| Share on Facebook | Share on Twitter

Auburn Hills, MI - Injected with an unmatched 707 horsepower courtesy of an awe-inspiring supercharged 6.2-liter V-8 engine, the most awarded SUV ever and the most capable full-size SUV on the planet has been transformed into the most powerful and quickest SUV ever.

Powertrain and Performance

The new benchmark 707-horsepower supercharged engine combines with an upgraded high-torque capacity TorqueFlite eight-speed automatic transmission, world-class on-road driving dynamics and new Brembo brakes to deliver a new level of performance: 0-60 miles per hour (mph) in 3.5 seconds, quarter mile in 11.6 seconds at 116 mph, top speed of 180 mph, 60-0 mph braking distance in 114 feet and .88g capability on the skid pad.

High-strength, forged-alloy pistons – developed using advanced telemetry measurement – are coupled to powder-forged connecting rods with high-load-capacity bushings and diamond-like, carbon-coated piston pins. Premium grade, heat-treated aluminum-alloy cylinder heads are optimized for superior thermal conductivity. Sodium-cooled exhaust valves feature hollow-stem construction and special steel-alloy heads that stand up to temperatures as high as 1,652 degrees Fahrenheit (900 degrees Celsius).

The 2,380cc per revolution supercharger includes integral charge-air coolers and an integrated electronic bypass valve to regulate boost pressure to a maximum of 11.6 psi (80 kPa). The supercharger is sealed for life with premium synthetic oil, uses a drive ratio of 2.36:1 and has a maximum speed of 14,600 rpm. The supercharger drive system’s one-way clutch de-coupler improves refinement, while allowing for precisely the kind of powerful sound certain to captivate Jeep Grand Cherokee Trackhawk drivers. Air sources for the supercharger include a cold-air scoop in the lower front fascia, which replaces the driver’s-side fog lamp and helps to feed the 92mm throttle body.

A strengthened rear drive shaft connects to a new, stronger rear axle. The differential features a revised housing design, revised ring-and-pinion tooth geometry and new four-point axle mounting scheme for better load distribution, additional torque capacity and overall durability. Torque is delivered to the rear wheels via new ultra-high-strength 300M low-alloy vacuum melted steel half-shafts with upgraded eight-ball outboard constant velocity joints.

Standard Launch Control optimizes the Grand Cherokee Trackhawk’s performance by coordinating the engine, transmission, driveline and suspension for a textbook launch and consistent straight-line acceleration. A new standard Torque Reserve system provides improved engine torque response and quicker vehicle acceleration in Launch Control by pre-positioning the supercharger bypass valve to generate boost and minimize manifold filling time, while cutting fueling to individual cylinders and managing spark timing. This generates a reserve of torque that can be instantaneously delivered upon acceleration from a standing stop.

The Selec-Track system on the Grand Cherokee Trackhawk uses performance-tuned software to pre-configure and distinguish the five dynamic modes, including:  Auto, Sport, Track, Snow and Tow, enabling drivers to choose a vehicle setting that ideally meets their requirements and ambient conditions. The drive modes separately control the four-wheel-drive system, transmission, paddle shifters, suspension and the electric power steering.

Dynamic drive mode configurations include:

  • Auto — Automatically adapts to any condition; uses a 40-percent front/60-percent rear torque split
  • Sport — Transmission shift times are reduced by 50 percent versus Auto Mode; stability control, four-wheel-drive and steering systems are set for typical enthusiast driving style; paddle shifters are enabled and suspension is tightened up without increasing impact harshness to deliver increased vehicle performance capability over Auto Mode; uses 35/65 torque split
  • Track — Transmission shift times are reduced 68 percent versus Auto Mode to 160 milliseconds; stability control, four-wheel-drive and steering systems are set for ultimate track performance; paddle shifters are enabled and suspension is set to full firm to deliver maximum vehicle performance capability on smooth, dry surfaces; uses 30/70 torque split
  • Tow — Alters torque delivery off the line for greater smoothness and adjusts suspension to combat pitch and yaw to deliver maximum towing performance: uses 60/40 torque split
  • Snow — Maximizes traction to deliver optimized performance on snow and ice with reduced engine horsepower; uses 50/50 torque split

Trackhawk also features a Custom Mode that allows the driver to personalize the vehicle’s performance with a selectable driving experience offering a multitude of vehicle system combinations. 

Exterior

The 2018 Jeep Grand Cherokee Trackhawk rides one inch lower than non-SRT Grand Cherokee models and is further set apart with body-colored wheel flares, side sill cladding and a sculpted hood with dual heat extractors. The signature seven-slot upper front grille is flanked by adaptive, bi-xenon headlamps and surrounded by an LED character lamp treatment. The headlamps on the Trackhawk model feature a unique Gloss Black background to accent their jewel-like appearance. The fog lights are absent from the Trackhawk’s front fascia to optimize airflow to cooling modules and air induction without compromising the vehicle’s balance. From behind, the Grand Cherokee Trackhawk features a unique Gloss Black rear valence that showcases four-inch Black Chrome quad exhaust tips. The new quad exhaust system design provides an exhilarating and unmistakable note during maximum acceleration. 

New standard 20 x 10-inch Titanium wheels with a Satin Chrome center cap showcase the distinctive yellow calipers underneath. Available lightweight 20 x 10-inch forged aluminum Low Gloss Black wheels save 12 pounds versus the standard Trackhawk wheel. Grand Cherokee Trackhawk also features all-new Pirelli 295/45ZR20 Scorpion Verde All-Season and new Pirelli P Zero three-season tires with an increased speed rating.

Jeep Grand Cherokee Trackhawk is available in nine exterior colors: Billet Silver, Granite Crystal, Diamond Black, Ivory Tri-coat, Bright White, Velvet Red, Rhino (exclusive), Redline 2 (exclusive) and True Blue.

Interior

The driver-focused interior features premium soft-touch materials, unique Light Black Chrome finishes and carbon fiber spears, and a 7-inch driver information display (DID) instrument cluster, which features the tachometer in the middle. The 200-mph speedometer is on the left side of the cluster. The instrument panel center stack with new 8.4-inch Uconnect touchscreen features Trackhawk-exclusive Performance Pages that showcase an array of performance timers and gauge readouts, including a new engine dynamometer screen that measures instantaneous horsepower, torque and current transmission gear. The dynamometer screen also includes a new snapshot function for owners to save their readouts on a USB. Jeep Grand Cherokee Trackhawk’s three-spoke steering wheel with a flat bottom features a bevy of comfort, convenience and connectivity controls and ergonomically efficient paddle shifters.

The Trackhawk features standard Nappa leather and suede seats with an embroidered “Trackhawk” logo. A fully wrapped Signature Leather Interior Package with “Trackhawk” embossed on the seats, optional in black and Trackhawk-exclusive black and Dark Ruby Red is available. Seats are also heated (front and rear) and ventilated (front). Dark Ruby Red seatbelts and a dual-pane panoramic sunroof are also available options. A new Premium Metal Package is standard and enhances the Trackhawk’s interior with various upscale real metal accents.  

Safety and Security

The 2018 Jeep Grand Cherokee Trackhawk includes more than 70 safety and security features, including Trailer Hitch Camera View at Speed, which allows owners to view trailered items through the rear-mounted camera while moving, and a Valet mode that enables the following vehicle configurations:

  • Engine is remapped to significantly reduce horsepower and torque; limited to 4,000 rpm
  • Transmission locks out access to first gear and upshifts earlier than normal
  • Transmission will treat the manual shifter position the same as the drive position
  • Traction, steering and suspension are set to their Street settings
  • Steering-wheel paddle shifters are disabled
  • Drive Mode functions are disabled
  • Electronic stability control (ESC) is enabled to Full-on
  • Launch Control is disabled

Drivers can activate and deactivate Valet mode with a personalized four-digit PIN code.

Other prominent, standard Grand Cherokee Trackhawk safety and security features include Adaptive Cruise Control with Stop; Advanced Brake Assist; Blind-spot Monitoring with Rear Cross Path Detection; Full-speed Forward Collision Warning with Crash Mitigation; Front and Rear Park Assist; Lane Departure Warning-Plus; Ready Alert Braking and SiriusXM Guardian and Roadside Assistance buttons.

Advanced technology delivered with all-new infotainment system

New for 2018, the Jeep Grand Cherokee Trackhawk is equipped with standard Apple CarPlay and Android Auto through the latest version of Uconnect’s 8.4-inch touchscreen radio system. 

Built in Detroit at the Jefferson North Assembly Plant, the 2018 Grand Cherokee Trackhawk will arrive in Jeep showrooms in the fourth quarter of 2017.

2018 Jeep® Grand Cherokee Trackhawk - A 707-Horsepower Beast 2018 Jeep® Grand Cherokee Trackhawk - A 707-Horsepower Beast 2018 Jeep® Grand Cherokee Trackhawk - A 707-Horsepower Beast 2018 Jeep® Grand Cherokee Trackhawk - A 707-Horsepower Beast 2018 Jeep® Grand Cherokee Trackhawk - A 707-Horsepower Beast 2018 Jeep® Grand Cherokee Trackhawk - A 707-Horsepower Beast 2018 Jeep® Grand Cherokee Trackhawk - A 707-Horsepower Beast 2018 Jeep® Grand Cherokee Trackhawk - A 707-Horsepower Beast 2018 Jeep® Grand Cherokee Trackhawk - A 707-Horsepower Beast 2018 Jeep® Grand Cherokee Trackhawk - A 707-Horsepower Beast 2018 Jeep® Grand Cherokee Trackhawk - A 707-Horsepower Beast 2018 Jeep® Grand Cherokee Trackhawk - A 707-Horsepower Beast 2018 Jeep® Grand Cherokee Trackhawk - A 707-Horsepower Beast 2018 Jeep® Grand Cherokee Trackhawk - A 707-Horsepower Beast 2018 Jeep® Grand Cherokee Trackhawk - A 707-Horsepower Beast 2018 Jeep® Grand Cherokee Trackhawk - A 707-Horsepower Beast 2018 Jeep® Grand Cherokee Trackhawk - A 707-Horsepower Beast 2018 Jeep® Grand Cherokee Trackhawk - A 707-Horsepower Beast

source: FCA USA

More Articles