The 392-cubic inch (6.4-liter) HEMI® V-8 delivers 470 horsepower (351 kW) and 470 (637 N•m) lb.-ft. of torque. The torque band is extremely flat allowing for strong standing starts and improved straight-line performance throughout the rpm range. An advanced active intake manifold along with high-lift cam with phasing provides maximum low-end torque and high-end power while still delivering up to 23 miles per gallon on the highway with the standard manual transmission. Performance-tuned engine mounts improve idle stability and ride control at all speeds.
The 2012 Dodge Challenger SRT8 392 features a standard Tremec TR-6060 six-speed manual transmission and a dual-disc high performance clutch – a proven performer that was first offered on the 2008 Dodge Viper SRT10®.
The optional five-speed automatic transmission features new, standard steering wheel mounted paddle shifters that join the center console mounted Auto Stick, allowing for a choice of spirited shifting on both the road and the race track. Both methods give the driver the ability to manually select specific gears on the transmission.
Sitting a half-inch lower than non-SRT models, the 2012 Challenger SRT8 392 rides on either the standard five-spoke, 20 x 9-inch fully forged aluminum wheels or available seven-spoke, 20 x 9-inch lightweight forged aluminum wheels with satin black painted pockets. Standard Goodyear RSA All-Season tires or available Goodyear F1 Supercar Three-Season complement the performance design cues and deliver serious gripping performance and handling.
The standard SRT performance brake package produces world-class stopping power of 60 to 0 mph in just 117 feet from 14.2 inch (front) and 13.8 inch (rear) vented/slotted rotors with four-piston Brembo fixed calipers painted red. The three-mode electronic stability control system with knockback mitigation also includes four-wheel ABS, all-speed traction control, electronic brake-force distribution, Brake Assist and Hill-start Assist (HSA).