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Souped up Chrysler 300!

topic posted Thu, March 24, 2005 - 7:53 PM by  Unsubscribed
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www.chrysler.com/300/300c.html

Introducing Chrysler's newest addition to the Street and Racing Technology Series. With 85 more horses under the hood and SRT performance styling throughout, the SRT8 will change what you think about the evolution of the classic sedan.

Drive it like you mean it.
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www.allpar.com/cars/lx/sr...rysler.html

Preliminary performance for the 300C SRT-8 are 0-60 mph in the low 5-second range; quarter-mile time in the high 13-second range; and 0-100-0 in the mid-16 second range. The SRT-8 is due in Spring 2005, and will retain the 425 horsepower specification, with a $39,995 price tag (plus $650 destination).

chrysler 300c srt-8

In 2003, when the concept Chrysler SRT-8 was first shown to the public, it was introduced as having "over 400 horsepower." On August 13, 2004, the actual SRT-8 debuted with 425 horsepower, coming from a 6.1 liter Hemi powerplant. Both the power rating and engine size had been rumored for at least a year - though some sources insisted it would be 500 horsepower, Viper territory. Perhaps there's some reserve for the future; perhaps not. It does seem as though the team has pulled out the stops for this one.

SRT-8 is based on the standard SRT name given, confusingly enough, to vehicles modified by the PVO Group - that's Performance Vehicle Operations. SRT originally stood for "Street and Racing Technology" but now stands for "Strip, Road, and Track" - similar to the old R/T designation which seems to have been abandoned.

chrysler 300c srt8 cars

The SRT-8 (available in January 2005) adds a full 85 horsepower to the already-quick Chrysler 300C, with nearly another half-liter of displacement in the performance-geared engine. Nearly half of all 300s sold through the end of July 2004 were Hemi-equipped.
The new 6.1 liter Hemi engine

The 425 horsepower, normally aspirated (no supercharger) 6.1-liter Hemi matches the gross horsepower rating of the 426 Hemi engine exactly, albeit with lower torque (420 versus 490 lb-ft). It seems to beat the Elephant Engine's net horsepower, which has various sources have pegged at between 330 and (again) 425. In short, the 6.1 Hemi is the closest any V8 has come to the most successful stock racing V8 to come out of Detroit - and it gets better gas (and oil) mileage.

The SRT group uses traditional HEMI engine cues such as an orange-painted cylinder block and black valve covers. Greater power was achieved by boring the cylinders (increasing their diameter) by 3.5 mm each; they also increased the compression ratio from 9.6:1 to 10.3:1, and made other changes as detailed below.

Engine breathing was increased with new high-flow cylinder heads, a specially designed intake manifold, and exhaust “headers” with individual tubes encased in a stainless steel shell, all unique to the 6.1-liter Hemi. Larger diameter valves and reshaped cylinder ports in the heads maximize air flow. The intake manifold was designed with larger diameter runners for higher-speed tuning. Exhaust is routed through a larger-diameter (2.75-inch vs. 2.5-inch) exhaust system with 3.5-inch chrome tips.

Performance-oriented camshaft profiles were developed to balance total vehicle requirements, allowing more air in and out of cylinders. This increases performance and allows a higher top engine speed, 6,200 revolutions per minute (rpm) rather than the stock Hemi's 5,400 rpm. Intake and exhaust valve stems are hollow, and the exhaust valve stems are filled with sodium to help dissipate heat more efficiently.

The 6.1-liter Hemi V8 engine is further strengthened with redesigned components, including a reinforced engine block with increased coolant flow, forged steel crankshaft, high-strength powdered-metal connecting rods, floating-pin pistons (cooled by oil squirters), and an oil pan modified for reduced oil foaming.

More information on the SRT 6.1 Hemi is on our standard Hemi page.

Power is channeled through an A580 five-speed automatic transmission with specially calibrated driver-selectable range control. A heavy-duty four-flange prop shaft sends the torque from the transmission to an upgraded differential and axles.
Chrysler 300C SRT-8 cars ride and handling

Chassis setup for the Chrysler 300C SRT-8 is aimed at all-around performance with a number of enhancements, including tuned dampers, specially tailored spring rates and suspension bushings and larger-diameter anti-sway bars. New front and rear suspension knuckles contribute to a ride height lowered one-half inch from the Chrysler 300C. The Electronic Stability Program (ESP) has been specially tuned for the SRT-8’s performance handling characteristics.

The Chrysler 300C SRT-8 connects with the road via a new wheel and tire assembly consisting of 20-inch forged aluminum wheels shod with high-performance Goodyear F1 three-season tires (four-season tires are an available option) with asymmetrical tread. Tire dimensions are a beefy 245/45/20 in the front, and 255/45/20 in the rear.
Braking

The braking system was specially designed to slow and stop the car safely and predictably, while providing benchmark braking performance, setting a new standard for sedans in its class.

All four wheels feature stout performance calipers developed by Brembo and equipped with four pistons for even clamping performance. Up front, the Chrysler 300C SRT-8 has 360 x 32mm vented rotors, with 350 x 26mm vented rotors in the rear.
Chrysler 300C SRT8 interior

The SRT-8 offers power-adjustable sport seats up front that are fitted with performance suede inserts (matched in the rear seats) which hold the occupants during spirited driving. Seats are also equipped with heat and memory functions that, when paired with the adjustable pedal cluster, may be adjustable to every driver.

Steering wheel, shifter and door pulls are covered with “technical” leather trim for more positive grip. Other SRT-only trim includes special finishing on steering wheel, door pulls, door trim and center stack.

Full instrumentation, including a 180 mph (300 kph) speedometer, tachometer and temperature gauges ensure the driver can monitor crucial functions.

Premium amenities include a standard stereo with six-disc CD changer powering a seven-speaker Boston Acoustics speaker system, with steering wheel-mounted controls. Also available are Satellite Radio, which offers hundreds of channels, and a hands-free communications system with Bluetooth™ technology.

Heating and cooling adjustments are via an automatic temperature control system with dual-zone controls and infrared temperature sensing. Other standard features of the Chrysler 300C SRT-8 include an electronic vehicle information center with 128 customer-programmable features.

The Chrysler 300C SRT-8 interior is offered in a Light Graystone/Dark Slate color scheme.
Exterior

Modified front and rear fascias help direct air flow, particularly through unique ducts that help cool the brakes. In addition, a specially designed rear deck spoiler, while refined in appearance, is also functional – increasing rear downforce by 39 percent without increasing drag.
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Other unique touches to the Chrysler 300C SRT-8’s exterior include body-color front and rear bumper inserts, body-color grille insert with chrome collar, body-color mirrors and door handles, and unique SRT badging.

Two exterior colors are available: silver and black.
Safety and Security Features

In addition to standard 300C features, the SRT-8 has standard high-intensity discharge lighting and rear parking assist.
Chrysler 300C SRT8 car specifications

Dimensions are in inches (millimeters) unless otherwise noted. We are not reproducing items which are likely to be identical to the 300C, whose specs are here.

ENGINE: 6.1-LITER, HEMI® V-8




Displacement


370 cu. in. (6059 cu. cm)

Bore x Stroke


4.06 x 3.58 (103.0 x 90.9)

Compression Ratio


10.3:1

Power (estimated SAE net)


425 bhp (318 kW) @ 6200 rpm, (69.8 bhp/L)

Torque (estimated SAE Net)


420 lb.-ft. (310 N•m) @ 4800 rpm

Max. Engine Speed


6400 rpm (electronically limited)

Fuel Requirement


91 octane (R+M)/2 recommended (premium)

Oil Capacity


7 qt. (6.6L)

Coolant Capacity


14.00 qt. (13.25L)

Max. Gross Trailer Weight


not rated for trailer tow

EPA Fuel Economy (mpg City/Hwy)


14 city, 19 highway, 18.4 combined
(note: no multiple-displacement system!)
TRANSMISSION: W5A580 FIVE-SPEED AUTOMATIC




1st


3.59

2nd


2.19

3rd


1.41

4th


1.00

5th


0.83

Reverse


3.17

Final Drive Ratio


3.06

Overall Top Gear


2.54
ELECTRICAL SYSTEM




Alternator and battery


160-amp alternator; H7 Case battery, 730 CCA, maintenance-free
DIMENSIONS AND CAPACITIES(a)




Ground Clearance


5.1 (130)

Drag Coefficient


0.355

Curb Weight, lb. (kg)—Est.


4160 (1888)

Weight Dist., F/R


55/45
SUSPENSION




Front


Independent SLA with high upper “A” arm, lateral and diagonal lower links with dual ball joint front knuckle, coil spring over gas-charged shock absorbers and revised stabilizer bar lower “A” arm.

Rear


Five-link independent with coil springs, gas-charged shock absorbers and isolated suspension cradle. Revised rear stabilizer bar.
STEERING




Type


Rack and pinion with hydraulic power assist

Overall Ratio


16.1:1

Turning Diameter (curb-to-curb)


38.9 ft. (11.9 m)

Steering Turns (lock-to-lock)


2.75
TIRES




Size and type


P245/45R20 - Front; P255/45R20 - Rear

Mfr. and model


3 Season Goodyear F1 Supercar

Revs per mile (km)


729 (452) Front , 720 (447) Rear

Optional tires


Same size, lower performance: 4 Season Goodyear RS-A

Wheels


Forged Polished Aluminum, 20 x 9 in.
BRAKES



Front




Rotor size and type


14.2 x 1.26 ( 360 x 32.0 ) vented

Caliper size and type


1.73 (44) Brembo 4-piston fixed with aluminum housing

Swept area


351 sq. in. (2261 sq. cm)
Rear




Rotor size and type


13.8 x 1.10 (350 x 28) vented

Caliper size and type


1.26 (32) Brembo 4-piston fixed with aluminum housing

Swept area


316 sq. in. (2036 sq. cm)

Std. on 300C SRT-8


8x9 (203 x 229) active tandem-diaphragm vacuum booster
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