The 2006 Charger RT is powered by a 5.7-liter Hemi V8, delivering about 345 horsepower and 365 pound-feet of torque, typically paired with a 5-speed automatic transmission with AutoStick. This engine is the defining feature of the RT trim for that model year.
Engine overview
To understand what drives the 2006 Charger RT, it helps to know the specifics of the 5.7L Hemi V8 that Dodge used for this model line. The engine combines traditional Hemi technology with modern fuel-saving features for its era.
Core specifications of the 5.7L Hemi in the 2006 Charger RT include the following:
- Engine type: 5.7-liter Hemi V8
- Displacement: 5.7 L (346 cu in approximately)
- Power: 345 horsepower (SAE net)
- Torque: ~365 lb-ft
- Induction: Naturally aspirated
- Valvetrain: OHV pushrod design with 16 valves total
- Fuel system: Sequential multi-point fuel injection
- Technology: Multi-Displacement System (MDS) to deactivate cylinders on light load for highway efficiency; variable valve timing (VVT) enhances efficiency and response
Note: horsepower and torque figures are often cited as 345 hp and 365 lb-ft for SAE net ratings, with slight variation by source and emissions spec. The 5.7L Hemi in the Charger RT was designed to balance strong performance with everyday usability.
Transmission pairing and performance context
The 2006 Charger RT commonly paired the 5.7L Hemi with a 5-speed automatic transmission featuring AutoStick manual shift capability. A manual transmission was not typically offered on the RT in that model year; the more extreme SRT8 variant used a larger engine and different gearbox options.
The Charger RT’s engine was part of a broader lineup that included the base V6 and, in the same generation, the higher-performance SRT8 with a larger displacement Hemi. The RT’s 5.7L V8 was intended to deliver strong acceleration and real-world muscle, while the SRT8 aimed to push peak performance even further.
RT vs SRT8: a quick comparison
For context, the 2006 SRT8 in the Charger lineup used a larger 6.1-liter Hemi and produced substantially more horsepower, reflecting its focus on top-end performance. The RT, with its 5.7L Hemi, offered a balance of power and daily drivability, aided by features like MDS for highway fuel economy.
Summary
In short, the engine that powered the 2006 Dodge Charger RT is the 5.7-liter Hemi V8, rated around 345 horsepower and 365 lb-ft of torque, paired with a 5-speed automatic with AutoStick and equipped with modern efficiency features of the era, such as MDS and VVT. This setup defined the RT’s blend of muscle and practicality within the Charger lineup.