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Caliber SRT4

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2006 Chicago Auto Show: 2007 Dodge Caliber SRT4
Source: Chrysler Group

What They Said: "With 300 horsepower under the hood, the Dodge Caliber SRT4 will dominate the sport-compact market."

What It Means: Sure, but without AWD and the Lancer leaving the compact realm, is there much competition to dominate?

Full Release: 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."
Standout Powertrain

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.
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1 - 7 of 7 Posts
The hardware is enough to shut up some of the haters :)
Just wondering how a 300 hp car will be driveable without AWD but FWD?! :eek:
im sure someone will try to jerry-rig it to work w/ a donor awd from the R/T .. lol; its supposed to be in the same price-range as the neon-SRT was. Anyone notice that quite a few components for this come from the Lx's [charger/magnum/300]

edit-- anyone notice that the fmic is in the top, not the bottom, as i would've expected?.. and does anyone else wanna see some under-hood shots? :D
i my self am a little scared of getting the 1st year of a new production car, any of you who have an srt-4 know what i mean, they just kept getting better, and there were some mistakes and problemswith the first ones
You can always trade it in for the next model year ;)

Yeah I want to see under the hood shots too. I also read that the FMIC is higher toward the cross hair grille too in that write-up.
1 - 7 of 7 Posts
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