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Dodge Challenger SRT Demon: 10 Ways It's More Than a Hotter Hellcat

Dodge Challenger SRT Demon: 10 Ways It's More Than a Hotter Hellcat

It took two years of secret development under the code name "Benny" to bring the new Challenger SRT Demon's V-8 Used Engine to fruition, according to SRT powertrain Used Engine ers. Parts suppliers gawping at specifications ("You want it to flow how much air?"), nobody knowing the whole picture, with everyone fed just enough information to know what they needed to do but nobody — save a handful of people — knew the whole picture.

Bringing the new 2018 Dodge Challenger SRT Demon to market was an exercise in corporate secrecy that would make the Department of Defense proud. In the end, they pulled it off. It's an 840-horsepower drag-racing monster that will run high 9-seconds in the quarter mile straight off the showroom floor. That was the car's development mantra, according to Tim Kuniskis, Dodge boss and the driving force behind the Demon. "Nines with light," he said at a recent deep dive into the Demon development in Pontiac, Mich., referring to the targeted quarter-mile time and the desire to see daylight under the front wheels of the car when it launches (meaning it can do a wheelie for the first 3 feet of forward travel).

A lot of work went into making it possible, and what resulted is extraordinary. Here are 10 ways the Demon is much more than just a hotter Hellcat:

1. Over half of the Used Engine components are new.

2018 Dodge Challenger SRT Demon

Sixty-two percent of the Used Engine components, to be exact, are not shared with the Hellcat. This includes things like the pistons, supercharger, Used Engine block, connecting rods and more.

2. The Demon Used Engine flows 35 percent more air than a Hellcat

2018 Dodge Challenger SRT Demon

It has three air inlets (the Hellcat has two), a unique 92 mm throttle body and the biggest supercharger ever fitted to a passenger car Used Engine . If it was hooked up to the cabin air vents, at full throttle it would suck all the air out of the cabin in just 800 feet of travel.

3. The induction system features a unique air-conditioning intake air chiller.

2018 Dodge Challenger SRT Demon

The air-conditioning coolant is piped into a heat exchanger to help cool the air coming into the Used Engine . Keeping that air cold is important because at full tilt, the Demon Used Engine puts out enough heat to boil one quart of water in 1.2 seconds, or the equivalent of 250 electric toasters going at once.

4. The Demon has a special 100-octane race gas setting.

2018 Dodge Challenger SRT Demon fuel switch

To make the full 840 hp, you have to run 100-octane gas, which you can find at some stations near tracks. Without that gas and the special button to activate that setting, you're "only" making 808 hp.

5. There's also an upgraded fuel delivery system.

2018 Dodge Challenger SRT Demon

And there has to be — in order to make full power, the fuel system flows 1.36 gallons per minute of gasoline. Your average low-flow bathroom showerhead flows 2 gallons per minute.

6. The Demon has 534 pounds-feet of "launch torque" available.

2018 Dodge Challenger SRT Demon

Thanks to the special Torque Reserve feature, a combination of supercharger tuning and spark retard, there's a massive amount of torque available at launch, enabling those incredible quarter-mile times.

7. A line-lock wouldn't hold the Demon in place for launch, so a TransBrake was added.

2018 Dodge Challenger SRT Demon

The Demon just makes too much power for a typical brake line-lock, so the transmission locks clutch packs A, B, C and E when the TransBrake is activated. It launches by releasing pack E when you pull the shifter paddles.

8. The pistons and connecting rods are beefier and shaped differently than the Hellcat Used Engine .

2018 Dodge Challenger SRT Demon

Again, they have to be — at full throttle, they get loaded with 11 tons of force, the equivalent of five Demons sitting on them. And this happens 50 times a second.

9. With standard sticky Nitto drag radial tires, the Demon can put down 40 percent more launch force than the Hellcat.

2018 Dodge Challenger SRT Demon

10. The eight-speed TorqueFlite automatic transmission is tuned differently than the Hellcat's, and shifts slower than a Hellcat in drag mode.

2018 Dodge Challenger SRT Demon

Using a different software tune allows for better torque management; the Demon makes its shifts in 400 milliseconds compared to the Hellcat's 200 milliseconds.

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