The 2018 Dodge Challenger SRT Demon: Redefining Production Car Performance

When Dodge unleashed the Challenger SRT Hellcat with its staggering 707 horsepower, enthusiasts wondered if muscle cars could get any more extreme. The 2018 Dodge Challenger SRT Demon answered that question with an emphatic "yes," establishing itself as the most powerful production V-8 ever built and the quickest factory drag car in history.

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Unprecedented Performance Specifications

The SRT Demon doesn't just push boundaries—it demolishes them. Dodge engineers created what amounts to a street-legal drag racer that holds multiple production car world records:

Specification	Measurement	Significance
Horsepower	840 hp @ 6,300 rpm	Most powerful production V-8
Torque	770 lb-ft @ 4,500 rpm	Brute-force acceleration
0-60 mph	2.3 seconds	Faster than most $1M+ hypercars
Quarter-mile	9.65 seconds @ 140 mph	Quickest production car ever
Acceleration G-force	1.8G	Higher than fighter jet launch

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Radical Exterior Design: Form Follows Function

The Demon's aggressive styling isn't just for show—every element serves a performance purpose. The most noticeable feature is the massive functional hood scoop, the largest ever fitted to a production passenger car. This "Air-Grabber" system seals directly to the air box, combining with:

• Air-Catcher headlamp inlets
• Wheel liner air ducts
• High-flow air filter system

Together, these features allow the Demon's engine to consume 1,150 cubic feet of air per minute—18% more than the Hellcat and more than any other production engine.

Track-Ready Wheel and Tire Package

The Demon comes equipped with:

• 315/40R18 Nitto NT05R drag radials at all four corners
• 11-inch wide wheels to accommodate the massive tires
• Optional front runner wheels for drag strip use

The fender flares aren't just cosmetic—they're necessary to cover the enormous rubber that puts all that power to the ground. Owners can swap to the included skinny front tires at the track to reduce rolling resistance and front-end weight.

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Purpose-Built Interior: All Business

Dodge engineers stripped out everything non-essential to create the ultimate drag racing machine:

• No rear seats - Standard configuration eliminates weight
• Passenger seat optional - Available for just $1
• Audio system deleted - All 16 speakers and amplifier removed
• Reduced sound deadening - Saves weight and lets the engine roar

For those who want some comfort, Dodge offers options to add back:

• Heated/ventilated Nappa leather seats
• 900-watt Harman Kardon audio system
• Power moonroof
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Engineering Marvel: The Demon's Powertrain

The heart of the Demon is its supercharged 6.2-liter HEMI V-8, significantly upgraded from the Hellcat version:

Key Engine Upgrades

• Larger 2.7L supercharger (vs. Hellcat's 2.4L)
• Increased boost pressure - 14.5 psi vs. 11.6 psi
• Higher 6,500 rpm redline
• Dual high-capacity fuel pumps
• Forged pistons and connecting rods

Innovative Cooling Systems

The Demon features two groundbreaking cooling technologies:

1. SRT Power Chiller - Uses air conditioning refrigerant to cool the supercharger intercoolers
2. After-Run Chiller - Circulates coolant post-run to prepare for the next pass

Race Fuel Capability

A first for production cars, the Demon can automatically adjust its tune for 100+ octane race fuel when available. The system:

• Detects fuel octane level via knock sensors
• Adjusts spark timing and fuel pressure accordingly
• Provides maximum power on high-octane fuel
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Drag Racing Technology

The Demon comes packed with features that make it a true turnkey drag car:

TransBrake Launch System

This professional drag racing feature:

• Locks the transmission output shaft
• Allows engine to rev to 2,350 rpm against the brake
• Provides instant throttle response on launch

Torque Reserve System

A Dodge innovation that:

• Manages engine torque at launch
• Prevents driveline shock
• Optimizes weight transfer

Performance Pages App

The Demon's infotainment system includes specialized software for:

• Monitoring engine vitals
• Recording performance data
• Adjusting vehicle settings for different conditions

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The Demon Crate: Factory-Approved Upgrades

Each Demon comes with an optional crate containing:

• High-octane performance PCM
• Conical air filter
• Drag racing front wheels/tires
• Professional tools and equipment
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Legacy and Impact

The SRT Demon represents the pinnacle of factory-built performance cars, proving that:

• American muscle can outperform exotic supercars
• Drag racing technology belongs on street cars
• There's always room to push boundaries further

While production was limited, the Demon's influence continues to be felt across the automotive industry, inspiring both competitors and enthusiasts to rethink what's possible in a production vehicle.

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