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.......* Tire-smoking 300 horsepower—85 more than the original Dodge SRT4—and 260 lb.-ft. of torque
* 0-60 mph in less than 6 seconds
* All-around performance of a true "tuner car" right from the manufacturer
* Benchmark performance at the best price
Chrysler Group's Street and Racing Technology (SRT) group will take the SRT4 reputation to new heights with the introduction of the all-new, 300-horsepower 2007 Dodge Caliber SRT4.
"The all-new 2007 Dodge Caliber SRT4 achieves the SRT mission of offering benchmark performance for the best price," said George Murphy, Senior Vice President—Global Marketing, Chrysler Group. "With 300 horsepower under the hood, the Dodge Caliber SRT4 will dominate the sport-compact market."
With true tuner performance right out of the box and a great price, enthusiasts immediately took to the original SRT4, which was introduced in 2003 at the Los Angeles Auto Show. In the 2003-2005 model years, more than 25,000 Dodge SRT4s were sold.
"We couldn't wait to infuse Dodge Caliber with the SRT formula," said Murphy. "The all-new 2007 Dodge Caliber SRT4 delivers a strong dose of all-around performance while delivering at least 28 miles per gallon on the highway. Our new SRT pocket rocket will be a hoot to drive."
Street and Racing Technology
Since its inception in 2002, SRT has introduced 12 extreme-performance vehicles, including the Viper-powered Dodge Ram SRT10 regular cab and Quad Cab™, Chrysler Crossfire SRT6 Coupe and Roadster, Chrysler 300C SRT8, Dodge Magnum SRT8, Dodge Charger SRT8, Dodge Viper SRT10 Convertible and Coupe and Jeep® Grand Cherokee SRT8.
Every SRT vehicle showcases five key aspects: exterior styling that resonates with the brand image; race-inspired interiors; world-class ride and handling characteristics across a dynamic range; benchmark braking; and standout powertrain.
The all-new 2007 Dodge Caliber SRT4's formula begins with powertrain, essentially explained by four numbers: 85, 125, 300 and 260. The 85 is how much more horsepower than the original Dodge SRT4 is available, which results in 125 horsepower per liter for a total of 300 horsepower. The final number is 260, as in 260 lb.-ft. of tire-smoking, push-back-in-your-seat torque.
The all-new 2007 Dodge Caliber SRT4 is capable of a 0-60 mph time in less than six seconds.
The all-new 2007 Dodge Caliber gets its motivation from an all-new "World Engine" produced at the Global Engine Manufacturing Alliance (GEMA) facility in Dundee, Mich. The World Engine is a family of small fuel- and emissions-efficient aluminum four-cylinder gasoline engines co-developed by DaimlerChrysler's Chrysler Group, Hyundai Motor Company and Mitsubishi Motors Corporation.
"The all-new 2.4-liter turbocharged World Engine delivers a level of power you'd expect from a V-8," said Pete Gladysz, Senior Manager—Powertrain, SRT. "With the engine in the all-new 2007 Dodge Caliber SRT4, we were able to take advantage of tried-and-true performance improvements, such as increased cylinder-head flow and higher compression ratio, as well as newer technologies such as Variable Valve Timing (VVT)."
To achieve its high-performance Dodge Caliber SRT4 configuration, the aluminum 2.4-liter World Engine block is specially machined for increased water and oil flow. Unique cast pistons travel within iron cylinder liners, and are cooled by oil squirters and affixed to forged connecting rods for high-revving reliability.
Tri-metal bearings are used for the connecting rods and crankshaft for high-performance durability. A unique oil pump/balance shaft module keeps the reciprocating assembly well-lubricated and running smoothly. An external cooler keeps oil temperatures within a safe range.
The aluminum cylinder head is equipped with unique high-temperature exhaust valves. VVT uses computer mapping to open and close intake and exhaust valves at optimal points for efficient combustion and flow. The camshaft and micro-alloy steel crankshaft, shared with the non-turbocharged 2.4-liter World Engine, are fully capable of high-horsepower loads.
Free-flow induction begins with an all-new air cleaner assembly that draws through an opening in a front crossmember for proximity to cool air. The air is then compressed in a TD04 turbocharger specially configured for the engine's inlet and outlet packaging requirements, and sent through an intercooler to a 57mm throttle body.
Fuel is provided by a high-flow pump feeding injectors developed specifically for the 2007 Dodge Caliber SRT4. An all-new engine management system designed by Siemens—the Global Powertrain Engine Controller—keeps the powerplant running at maximum efficiency and power.
On the exhaust side, spent gas exits through a free-flow system that features two catalytic converters—one immediately downstream from the turbo, and another further along the 3-inch single-pipe exhaust system. Using two catalytic converters in this way provides significantly better "light-off" for decreased emissions. As with the previous-generation Dodge SRT4, the exhaust is tuned for maximum performance while meeting federal noise regulations.
Power is transferred through a dual-mass flywheel to the six-speed manual transmission. The dual-mass flywheel consists of two flywheels sandwiching internal springs that are specially tuned to reduce noise and vibration. The GF DMT-6 six-speed transmission, equipped with a limited-slip differential for uniform side-to-side power transfer, is capable of handling up to 300 lb.-ft. of torque.
Torque is sent to the Dodge Caliber SRT4's wheels through equal-length halfshafts sourced from Chrysler Group mid-size cars for their larger size and power-handling capability.
Functional, Performance-oriented Exterior Design
Because there is only one chance to make a first impression, the all-new 2007 Dodge Caliber SRT4 makes the most of it with muscular exterior styling.
"From the very first sketches of the all-new 2007 Dodge Caliber SRT4, we wanted an aggressive, SRT-signature look," said Trevor Creed, Senior Vice President—Design. "For example, because the intercooler is positioned so high behind the front grille, we moved the fascia slightly forward and extended the walls of the grille. The result is a much more aggressive look than the standard Dodge Caliber."
An all-new front fascia below the signature Dodge crosshair grille incorporates functional performance features including ducts that direct air to cool the brakes and a wide center inlet that provides air flow to the radiator. Fog lamps are also set into the fascia, alongside brake ducts. The 2007 Dodge Caliber SRT4's hood incorporates a functional scoop that brings cooling air into the engine compartment and a pair of extractors that exhaust hot air.
"Exterior design that works as well as it looks is a requirement for all SRT vehicles," said Creed. "The hood design includes the functionality of bringing cool air in and getting hot air out."
The lowest portion of the 2007 Dodge Caliber SRT4's fascia, which acts as an air dam to direct air around the front of the vehicle, wraps around to visually integrate with the radiused wheel wells and lower side-sill moldings.
The rear fascia continues the muscular, functional character of SRT vehicles, with lower vertical strakes that direct underbody air flow out the back of the vehicle, contributing to more stability at speed. A single, 3.5-inch exhaust tip exits from the right side of the fascia.
Aerodynamic efficiency is also aided by an integrated spoiler above the rear glass, which incorporates the Center High-mounted Stop Light (CHMSL). This spoiler, which is nearly 60 percent larger than that on the standard Dodge Caliber, is tuned for smoother air flow and downforce while maximizing the rear view.
Four exterior colors will be available on the all-new 2007 Dodge Caliber SRT4: Brilliant Black, Sunburst Orange, Bright Silver and Inferno Red.