The Citizen (Gauteng)

New Jeep a car to

BRUTE: THE POWERFUL SUPERCHARG­ED 6.2-LITRE ENGINE P

-

It has not yet been decided if this model will come to SA ... we can only hope.

Whether it will come to South Africa or not is undecided, but the 2018 Jeep Grand Cherokee Trackhawk is something to drool over.

With a supercharg­ed 6.2-litre V8 engine producing 520 kW and feeding a TorqueFlit­e eight-speed automatic transmissi­on, this brute can make it to 96 km/h in 3.5 seconds, covering a quarter mile in 11.6 seconds at 186 km/h, before reaching a top speed of 288 km/h.

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

Powering the 2018 Jeep Grand Cherokee Trackhawk is a supercharg­ed 6.2-litre V-8 engine delivering 520 kW and 875 Nm of torque.

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 80 kPa. The twin-screw rotors are specially coated with a proprietar­y formula of polyimide and other resins as well as nanometer-sized, wear-resistant particles and solid lubricants, such as PTFE (Teflon).

The coating enables tighter clearance between the rotors. This reduces internal air leakage, delivering improved compressor performanc­e and higher efficienci­es. The coating can withstand the temperatur­es generated by compressio­n, and provides superior corrosion resistance.

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 r/min.

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.

The large-nosed crankshaft drives a high-flow gerotor oil pump, which feeds a lubricatio­n circuit that includes eight high-flow piston-cooling jets. A high-capacity oil/air heat exchanger, mounted in the front of the Trackhawk, keeps oil temperatur­es down when driving conditions are harshest, such as on the track.

 ??  ??
 ??  ??

Newspapers in English

Newspapers from South Africa