In its "plain" wrapper, the Dodge Viper is a street racer heavyweight. When you "one-up" this street beast Viper, you get the 2009 Dodge Viper SRT10 ACR. Couple this with a "Hardcore" package available on this car, and you have a slick snake that not only looks the part, but put its money where its fangs are !
The 2009 Dodge Viper ACR has the same power and torque as the regular Viper with 600 horses and 560 pound-feet. The engine drives through a smaller dual plate clutch that reduces rotating inertia by 18 percent and the latest version of the Tremec T6060 six-speed that includes triple-cone synchros on first and second, and 10-percent-wider gears to manage the torque. The new GKN ViscoLok diff features its own sump to quicker generate the hydraulic pressure needed to actuate the limited-slip clutches faster, yet more progressively and with greater precision.
Most of the time, effort, and development dollars have been spent on business end of that makes the 2009 Dodge Viper SRT10 ACR go faster through the twisty bits-suspension, brakes, wheels and tires, and aerodynamics. Especially the aerodynamics. Here is a basic example of the functionality of the vehicle - At 150 mph, the regular Viper coupe generates 100 pounds of downforce. The same speed with the Viper ACR generates 1000 pounds of downforce.
That giant carbon-fiber rear wing is the most obvious reason why. But there's also a new carbon-fiber front splitter that extends way back under the car and incorporates seven steps to diffuse the airflow. The new hood louvers unveiled with the 600-horsepower engine upgrade a year ago play a part, too. According to the specialists at SRT every aspect of the car is used to aerodynamically balance the vehicle.
Suspension changes include race-style KW shocks all around that can be adjusted for stiffness and ride height, springs twice as stiff as those in a normal Viper, and a beefier front stabilizer bar. Forged "Sidewinder" alloy wheels save 30 pounds of unsprung weight, and new two-piece StopTech brake rotors save a further 30. Michelin Pilot Sport Cup tires-basically barely legal race rubber are standard equipment.
The "standard" Dodge Viper ACR is 40 lbs lighter than the regular Viper coupe. The optional "Hardcore" package saves an extra 40 lbs with the deletion of the audio system, underhood silencer pad, trunk carpet, and tire inflator. The radio is replaced by a lightweight cover that can be configured to mount the lap timer that comes with the package. All this adds up to some serious, all business, high performance, street terror. Hardcore indeed ! Come and get some !
Some of the statistics on this street animal are as follows :
General Body Style - Coupe
Assembly Plant - Conner Avenue (Detriot, MI)
EPA Vehicle Class - Two-seater
Engine Type and Description - 10-cylinder, 90-degree V-type, liquid-cooled
Displacement- 8.4 liter (510 cu. in.)
Bore x Stroke - 4.055 x 3.96 (103 x 100.6)
Valve System - OHV, Variable Valve Timing, 20 valves, roller-type hydraulic lifters
Fuel Injection - Sequential, multi-port, electronic
Construction - Aluminum alloy block with cast-iron liners, aluminum alloy heads
Compression Ratio - 10.2:1
Power (SAE net) - 600 bhp (450KW) @ 6100 rpm (71 bhp/L)
Torque (SAE net) - 560 lb.-ft. (760 N•m @ 5000 rpm)
Max. Engine Speed - 6,250 rpm
Fuel Requirement - Unleaded premium—91 Octane (R+M)/2
Oil Capacity (with filters) - 10 qt. (9.5L)
Coolant Capacity - 16 qt. (15L)
Emission Controls - Four three-way catalytic converters, heated oxygen sensors, engine internal features(a)
EPA Fuel Economy (city/highway) - N/A (a)Meets Tier 2 standards in all 50 states.
Electrical System Alternator - 180-amp high-speed
Battery - Leak-resistant, maintenance-free, 600 CCA
Radio - AM/FM/CD radio with MP3 disc play capability, with 310-watt RMS audio amplifier and seven speakers
Transmission - Manual Six-speed Overdrive Description - Synchronized in all gears, electronic 1-4 skip-shift and reverse lockout mechanisms Gear Ratios
1st__2.66
2nd__1.82
3rd__1.30
4th__1.00
5th__0.74
6th__0.50
Axle Ratio - 3.07
Overall Top Gear - 1.5
Final Drive Description - Frame-mounted hypoid bevel gear with GKN ViscoLok speed-sensing limited-slip differential
Dimensions and Capacities (measured with 2 passengers) Wheelbase - 98.8 (2510)
Track, Front - 61.6 (1565)
Track, Rear - 60.9 (1547)
Overall Length - 175.6 (4459)
Overall Width (at sills) - 75.2 (1911)
Overall Height - 47.6 (1210)
Ground Clearance - 5.125 (130)
Curb Weight (estimated) - 3,408 lbs. (1552 kg), ACR; __ 3,366 lbs. (1533 kg) ACR with Hard Core (Audio Delete) Package
Weight Distribution F/R - 49.5/50.5
Frontal Area - 19.3 sq. ft. (1.79 sq. m)
Fuel Tank Capacity -16.0 gal. (70L)
Accomodations Seating Capacity - 2
Head Room - 36.5 (926)
Leg Room - 42.4 (1077)
Shoulder Room - 54.1 (1375)
Seat Travel - 7.6 (192)
Recliner Range - 45°
SAE Interior Volume - NA
Body Longitudinal front engine, rear-wheel drive Construction Backbone tubular space frame with separate cowl structure. SMC and RIM body panels, aluminum sills, RIM front and rear fascias with composite impact beams
Aerodynamics Front - Carbon fiber ‘fanged’ splitter with rub strips; splitter extension; carbon dive planes
Rear - Carbon fiber ACR wing with 7-position adjustable stanchions
Downforce @ 150 mph (high down force set-up) -1000 lbs.
Suspension Type - Four-wheel independent with high-performance aluminum control arms and knuckles, and KW Suspensions 2-way adjustable competition coil-over shock absorbers
Front - Cast-aluminum unequal-length upper and lower “A” arms, high rate coil springs, gas charged 2-way adjustable monotube shocks absorbers, high rate stabilizer bar
Rear - Cast-aluminum unequal-length upper and lower “A” arms, toe-control links, high rate coil springs, gas charged 2-way adjustable monotube shock absorbers, stabilizer bar
Steering Type - Power-assisted rack and pinion
Overall Ration - 16.7:1
Turning Diameter (curb-to-curb) - 40.5 ft. (12.34 m)
Steering Turns (lock-to-lock) - 2.4
Tires Size and Type - P295/30 ZR18—front, P345/30 ZR19—rear
Manufacturer and Model - Michelin® Pilot® Sport Cup with low-pressure sensors in valve stems
Wheels Type and Material - Lightweight forged aluminum ”Sidewinder”
Size - 18” x 10.0”—front, 19” x 13”—rear
Brakes Size and Type - P295/30 ZR18—front, P345/30 ZR19—rear
Manufacturer and Model - Michelin® Pilot® Sport Cup with low-pressure sensors in valve stems
All this technology, research and development doesn't come cheap. This high performance street car weighs in at an estimated sticker price of $ 107,000. But if you want the rawest, race-ready, high performance car for the street - the Dodge Viper SRT10 ACR is it !
