What Is the Demon 170 Engine?
The Demon 170 Engine is a groundbreaking powerplant developed by Dodge, a division of Stellantis. This supercharged 6.2-liter HEMI V8 engine is the heart of the Dodge Challenger SRT Demon, a purpose-built, street-legal drag racing machine.
Key Specs and Features
Key Specifications
- Displacement: 6.2 liters (376 cubic inches)
- Configuration: Supercharged V8
- Bore x Stroke: 4.09 x 3.72 inches (103.9 x 94.6 mm)
- Compression Ratio: 9.5:1
- Power Output: 808 horsepower @ 6,300 RPM
- Torque Output: 717 lb-ft @ 4,500 RPM
- Redline: 6,500 RPM
Key Features
- Supercharger: 2.7-liter IHI supercharger with integrated charge coolers
- Fuel System: High-flow fuel injectors and dual-pump fuel system
- Valvetrain: Sodium-filled exhaust valves, hollow-stem intake valves
- Cylinder Heads: Aluminum alloy with semi-permanent moly-coated cylinder liners
- Crankshaft: Forged steel with cross-bolted main bearing caps
- Connecting Rods: Forged high-strength alloy steel
- Pistons: Forged aluminum alloy with anodized top ring grooves
Performance and Capabilities
The Demon 170 engine is a high-performance powerplant designed for exceptional acceleration and top speed. It boasts a staggering 808 horsepower and 717 lb-ft of torque, enabling a 0-60 mph time of just 2.3 seconds and a quarter-mile elapsed time of 9.65 seconds at 140 mph. These figures make it one of the most potent production engines ever built, rivaling purpose-built race cars.
Tuning Potential and Aftermarket Mods
Tuning Potential
The Demon 170 engine offers significant tuning potential through various modifications, such as:
- Forced Induction: The engine’s robust design can accommodate high-performance superchargers or turbochargers, potentially increasing power output by 30-50%.
- Camshaft Upgrades: Installing aftermarket camshafts with more aggressive profiles can enhance airflow and increase power across the rev range.
- Cylinder Head Porting: Porting and polishing the cylinder heads can optimize airflow and improve volumetric efficiency, resulting in power gains.
- Exhaust System Upgrades: High-flow exhaust headers and free-flowing exhaust systems can reduce backpressure and improve exhaust scavenging.
Aftermarket Modifications
The Demon 170 engine is compatible with a wide range of aftermarket modifications, including:
- Performance Engine Management Systems: Aftermarket ECUs and tuning software can optimize fuel and ignition maps, unlocking additional power potential.
- Intake Upgrades: Cold air intakes, high-flow throttle bodies, and intake manifolds can improve airflow and increase power.
- Fuel System Upgrades: Larger fuel injectors, high-pressure fuel pumps, and fuel pressure regulators can support higher power levels.
- Rotating Assembly Upgrades: Forged pistons, connecting rods, and crankshafts can increase the engine’s durability and enable higher power outputs
Why the Demon 170 Engine Stands Out
The Demon 170 engine’s performance is truly unmatched, setting new benchmarks in the automotive industry:
- 0-60 mph in 2.3 seconds: The Demon 170 accelerates from 0 to 60 mph in a blistering 2.3 seconds, making it one of the quickest production cars ever built.
- World’s Highest G-Force for a Production Car: With a staggering 1.8 g of peak acceleration force, the Demon 170 holds the record for the highest g-force ever achieved by a production vehicle.
- World’s First Production Car to Lift the Front Wheels: Thanks to its immense power and advanced weight transfer system, the Demon 170 is the first production car capable of lifting its front wheels off the ground during acceleration.
Applications of Demon 170 Engine
Current Applications
The Demon 170 Engine is a high-performance engine widely used in various industries that require reliable and efficient power sources. Some of its current applications include:
- Aerospace: The engine’s lightweight design and impressive power-to-weight ratio make it suitable for small aircraft, drones, and unmanned aerial vehicles (UAVs). Its compact size and fuel efficiency are advantageous for these applications.
- Automotive: The Demon 170 Engine has found applications in high-performance sports cars and racing vehicles, where its ability to generate significant power while maintaining a compact size is highly valued.
- Marine: Certain marine vessels, such as high-speed boats and personal watercraft, utilize the Demon 170 Engine for its reliable performance and fuel efficiency.
Potential Future Applications
Given its impressive specifications and capabilities, the Demon 170 Engine holds promising potential for various emerging applications:
- Hybrid and Electric Vehicles: As the automotive industry shifts towards electrification, the Demon 170 Engine’s compact size and power density could make it an attractive option for range-extending generators or as part of hybrid powertrain systems.
- Distributed Power Generation: The engine’s efficiency and portability could make it suitable for small-scale distributed power generation systems, particularly in remote or off-grid locations.
- Robotics and Automation: The lightweight and powerful nature of the Demon 170 Engine could find applications in advanced robotics and automation systems, where compact and efficient power sources are highly desirable.
- Aerospace Innovation: With ongoing advancements in aerospace technology, the Demon 170 Engine’s performance characteristics could open up new possibilities in areas such as urban air mobility, advanced drones, and experimental aircraft designs.
Application Cases
| Product/Project | Technical Outcomes | Application Scenarios |
|---|---|---|
| Demon 170 Engine N/A | High power-to-weight ratio, compact size, and fuel efficiency | Aerospace (small aircraft, drones, UAVs), Automotive (high-performance sports cars, racing vehicles), Marine (high-speed boats, personal watercraft) |
| Demon 170 Engine N/A | Compact size and power density | Hybrid and Electric Vehicles (range-extending generators, hybrid powertrain systems), Distributed Power Generation |
Latest Technical Innovations in Demon 170 Engine
Engine Architecture and Design
The Demon 170 Engine features a high-performance V8 engine block with a displacement of 6.2 liters. It incorporates advanced technologies such as:
- Lightweight aluminum alloy construction for reduced weight and improved power-to-weight ratio.
- Plasma-transferred wire arc (PTWA) cylinder coating for increased durability and reduced friction.
- Sodium-filled exhaust valves for improved heat dissipation and increased valve life.
Fuel Delivery and Combustion
The engine employs cutting-edge fuel delivery and combustion systems, including:
- High-flow composite intake manifold for optimized airflow and increased power output.
- Dual-fuel injection system with both port and direct injection for improved fuel atomization and combustion efficiency.
- High-lift camshaft profiles and increased valve lift for enhanced breathing and power production.
Supercharging and Boost Management
A key innovation is the advanced supercharging system, which comprises:
- 2.7-liter twin-screw supercharger with integrated charge coolers for increased boost pressure and reduced intake temperatures.
- Electronically controlled bypass valve for precise boost management and improved transient response.
- Dedicated cooling circuit for the supercharger and charge air coolers, ensuring consistent performance under high loads.
Advanced Engine Controls
The Demon 170 Engine features state-of-the-art engine control systems, such as:
- High-performance powertrain control module (PCM) with customized calibrations for optimized performance and drivability.
- Integrated vehicle dynamics control system for enhanced traction and stability during high-performance driving.
- On-board diagnostics and data logging capabilities for performance monitoring and tuning.
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