If you can imagine Motor Trend’s sister brand Roadkill doing a weekend engine swap of a Hellcat crate engine into a Grand Cherokee SRT8 to produce the world’s most powerful SUV, you’ve got about 90 percent of the design brief for the 2018 Jeep Grand Cherokee Trackhawk.
The engine is almost exactly the same as the one powering Challenger and Charger Hellcats, from boost pressure (11.6 psi) and max air flow rate (30,000 liters per minute) to peak in-cylinder pressures (1,600 psi). One difference: The oil capacity is slightly greater—8.3 versus 7.0 quarts. That helps it cope with the most significant difference in the Jeep’s duty cycle: the ability power all four wheels and to tow 7,200 pounds (just as the SRT8 can).
Unique exterior features include a 1-inch lower ride height (versus non-SRT models), body-colored wheel flares and side sill cladding, a hood with dual heat extractor vents, and two exclusive exterior color options (Rhino and Redline 2). The foglights have been deleted to enhance cooling and intake.
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