---
title: "Witness This 1,200-HP Jeep Grand Cherokee Trackhawk Thunder Down the Quarter in 9.66 Seconds"
description: "This is what happens when Hennessey adds nearly 500 horsepower to an already blistering-fast machine."
date: "2018-10-13"
modified: "2018-10-14"
authors:
  - name: "Caleb Jacobs"
    job_title: "Senior Editor"
    link: "https://www.thedrive.com/authors/caleb-jacobs"
url: "https://www.thedrive.com/news/24206/witness-this-1200-hp-jeep-grand-cherokee-trackhawk-thunder-down-the-quarter-in-9-66-seconds"
categories:
  - "Jeep News"
  - "News"
  - "News by Brand"
  - "Trucks"
  - "Watch This"
tags:
  - "drag racing"
  - "Grand Cherokee"
  - "Hennessey Performance"
  - "Horsepower"
  - "Jeep"
  - "Jeep Grand Cherokee Trackhawk"
  - "sports car"
  - "suv/crossover"
---

# Witness This 1,200-HP Jeep Grand Cherokee Trackhawk Thunder Down the Quarter in 9.66 Seconds

![](<https://www.thedrive.com/wp-content/uploads/images-by-url-td/content/2018/10/jeep-trackhawk-hero.jpg>)
*\<em\>www.thedrive.com</em>*

If the [Hellcat-powered Jeep Grand Cherokee Trackhawk](<https://www.thedrive.com/new-cars/15607/2018-jeep-grand-cherokee-trackhawk-review-hellcat-suv-delivers-a-supercharged-street-beatdown>) isn't fast enough for you at 707 horsepower, then this [Hennessey-equipped upgrade](<https://www.thedrive.com/video/23905/driving-the-1000-hp-hennessey-performance-jeep-grand-cherokee-trackhawk-more-hell-for-the-awd-hellcat>) with an extra 500 hp may be better at scratching that itch for crazy acceleration.

The bruiser SUV is able to run 11-second quarter-mile times from the factory thanks to its supercharged 6.2-liter V8 and all-wheel-drive system, making it no slouch even when compared to exotic supercars of today. That said, warming over the Jeep's powerplant can quickly result in a massive output increase without much extra work. Hennessey's HPE1200 upgrade kit takes that advice as gospel and reconfigures the truck's ECU while also making use of a monstrous 4.5L blower [among other tweaks](<https://hennesseyperformance.com/vehicles/jeep/jeep-trackhawk/jeep-trackhawk-hpe1200-supercharged-engine-upgrade/>), cutting the quarter-mile time by two whole seconds in the process.

Officially, engine power figures are 1,200 hp at 6,500 rpm and 1,080 pound-feet of torque at 4,200 rpm.

The aftermarket add-ons in question can be seen at work below:

https://youtube.com/embed/J_tZBQZmBNY

Not only is the time drastically quicker than in stock form, but the trap speed is also kicked up to 145 miles per hour. That's a higher figure than the Trackhawk's revered Mopar brethren, the [Dodge Challenger SRT Demon](<https://www.thedrive.com/new-cars/12618/2018-dodge-challenger-srt-demon-sends-its-rivals-straight-to-hell>), which eclipses the quarter mile one-hundredth of a second quicker at *just* 140 mph. It also beats out the insanely rapid [McLaren 720S](<https://www.thedrive.com/news/22671/scientist-explains-why-the-mclaren-720s-is-a-spaceship-for-the-road>) as well as [Lamborghini's Huracán Performante](<https://www.thedrive.com/new-cars/11307/2018-lamborghini-huracan-performante-is-a-supercar-supreme>) (by nearly 10 mph).

To replicate this feat, you'll need to have a lightning-quick reaction time, access to 109-octane race gas, and a major chunk of change.

## Author
Caleb Jacobs is The Drive’s senior editor. When he’s not searching for stories or poring over copy, he’s usually driving his dump truck or wishing it was running so he could drive it. He was born and raised in the Missouri Ozarks, and he lives there today with his family.

### Author social links  
[LinkedIn](<https://www.linkedin.com/in/caleb-jacobs-319323119>)  
[Instagram](<https://instagram.com/calebjwords>)  
[Twitter](<https://twitter.com/calebjacobs0611>)