Viper Club of America News

The VCA and SRT are very proud to present...
Good morning and welcome to the VCA/SRT reveal! We shot this video for our members, courtesy of our friends at SRT. You will find some great information and a nice little payoff at the end. No professional actors here - just folks that love America's Fastest Street Legal Track Car as much as you do!

Just right-click the link below and save it to your PC for viewing later:

http://www.viperclub.org/news/video/ACR11907.wmv

Our thanks to SRT for allowing the VCA to get a sneak-peek and to provide this very car to our members. The official press release and several exclusive photos are below. You may want to wear a bib...

Even More Viper Venom!
Dodge introduces street-legal 2008 Viper SRT10® ACR
  • Dodge delivers ultimate purpose-built, street-legal track car
  • 2008 Dodge Viper SRT10® ACR offers reduced weight, race-ready hardware and competition tuning for optimal on-track performance
  • Aerodynamic improvements, racing suspension and weight savings equal unmatched performance for under $100,000

Auburn Hills, Mich. – Dodge announced today that the all-new 2008 Dodge Viper SRT10® ACR – short for American Club Racer – will make its public debut at next week’s Los Angeles Auto Show.

The latest addition to Chrysler LLC’s Street and Racing Technology (SRT) family of performance vehicles, the all-new, 600-horsepower 2008 Dodge Viper SRT10 ACR is a street-legal Viper engineered to dominate on the race track. Because it is street legal, diehard Viper and track enthusiasts can drive their car to the race track, run it at speed on the track, and then drive it home.

“With the all-new 2008 Dodge Viper SRT10 ACR, SRT has taken the ultimate American sports car and injected it with an extra dose of racing DNA,” said Mike Accavitti, Director – Dodge Brand and SRT Marketing and Communications, Chrysler LLC. “With the Viper SRT10 as the starting point, SRT engineered a combination of reduced weight, race-tuned suspension and aerodynamic improvements to create the ultimate Viper for the street and track.”

Derived from the all-new 2008 Dodge Viper SRT10, the heart and soul of the all-new 2008 Viper SRT10 ACR is SRT’s new 8.4-liter aluminum V-10 engine that produces 600 horsepower and 560 lb.-ft. of torque.

The 2008 Dodge Viper SRT10 ACR stays true to the five key aspects of SRT: standout powertrain, bold exterior styling, race-inspired interior, benchmark braking, and world-class ride and handling characteristics across a dynamic range.

Bold Exterior Styling
The 2008 Dodge Viper SRT10 ACR exterior styling cues offer not only bold aesthetics but functional benefits on the track. These include a variable geometry “fanged” front splitter, an adjustable rear wing sculpted by CFD (Computational Fluid Dynamics), and optimized front dive planes. These new aerodynamic devices are formed in high-performance autoclaved carbonfiber. By using both unidirectional and woven laminates, the aero equipment is optimized for the minimum possible weight.

The splitter and dive planes feature a clear coated carbonfiber weave on all Viper SRT10 ACR models.

The front splitter includes three removable rub strips that provide protection and wear resistance. Supported by stainless steel tension cables, the splitter is designed to absorb the energy from minor upward deflections.

The Dodge Viper SRT10 ACR aerodynamics are tuned and balanced to maximize downforce and provide increased levels of lateral grip. Each Viper SRT10 ACR also includes a track extension that replaces the center splitter rub strip and fills out the fanged splitter scallop for closed-circuit events. The aerodynamic effect of the track extension is a reduction in overall drag and an increase in front downforce of nearly one third.

The front fog lamps have been deleted and replaced with lightweight filler panels.

The 2008 Viper SRT10 ACR features a signature two-tone paint scheme with a black center section. An optional driver’s stripe is available on a two-tone Viper Red or a Viper Black ACR. The driver’s stripe also features a sewn leather accent on the steering wheel. A clearcoated exposed weave is featured on the rear carbonfiber wing of all two-tone and driver’s stripe Viper SRT10 ACR models.

A standard Viper SRT10 monotone paint scheme is also available featuring a body color rear wing and dual painted Viper stripes.

The 2008 Dodge Viper SRT10 ACR is available in five colors: Viper Red, Viper Black, Viper Violet, Viper Bright Blue Metallic, and Viper Very Orange.

Lightweight forged aluminum Sidewinder wheels are painted gloss black to complete the one-of-a-kind exterior styling.

Race-inspired Interior
Based on the 2008 Viper SRT10 interior, the Viper SRT10 ACR goes a step further to satisfy what racers want: the least weight possible. An optional “Hard Core” package offers maximum weight savings by deleting 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 included lap timer. The door speakers are replaced by lightweight carbonfiber panels. The Hard Core package offers a 40 lb. weight savings and provides ultimate street legal race-ready performance.

World-class Ride and Handling
The all-new 2008 Dodge Viper SRT10 ACR is specifically modified and tuned for track performance. The ACR suspension includes coil-over racing dampers from KW Suspensions that are adjustable for damping and ride height. The shocks are two-way adjustable without removing the wheels – a timesaver on the track – and they includea large range for compression and rebound. The KW dampers and forks are machined from solid aluminum billet, feature spherical bearing mounts, and are optimized to minimize weight and maximize performance.

The 2008 Dodge Viper SRT10 ACR features a new front stabilizer bar for increased roll-stiffness.

Lightweight forged aluminum Sidewinder wheels are optimized by using Finite Element Analysis to achieve a lower rotating unsprung mass. Finished in gloss black paint, they wear Michelin Pilot Sport Cup DOT-approved (street legal) race tires, providing enhanced grip on the track.

Track performance is maximized in the 2008 Dodge Viper SRT10 ACR via several weight-savings initiatives. The savings were achieved with the Michelin Pilot Sport Cup Tires, Sidewinder lightweight wheels, and StopTech brake rotors. With the aerodynamic and suspension elements, the 2008 Dodge Viper SRT10 ACR is 40 pounds lighter than the Viper SRT10 coupe. The optional Hard Core package further reduces the weight by another 40 pounds, for a total weight savings of 80 pounds.

Benchmark Braking
The Viper SRT10 benchmark brakes are taken to the next level in the 2008 Dodge Viper SRT10 ACR. StopTech two-piece, slotted, lightweight rotors combine with the Viper SRT10’s Brembo calipers to reduce rotating inertia and unsprung mass, improve brake cooling, and significantly reduce fade even under extreme conditions. The StopTech rotors feature a patented curved-fin design, a key element in improving brake cooling. The StopTech brake rotors combined with the Michelin Pilot Sport Cup Tires and Sidewinder lightweight wheels combine to reduce 60 pounds of unsprung, rotating mass. The 2008 Dodge SRT10 Viper ACR stops from 60 mph in less than 100feet.

Standout Powertrain
The 2008 Dodge Viper SRT10 ACR utilizes the Viper SRT10’s new 8.4-liter aluminum V-10 engine that produces a ground-shaking 600 horsepower and tire-smoking 560 lb.-ft. of torque. It features a deep-skirted V10 aluminum engine block, cylinder heads equipped with Computer Numerically Controlled (CNC)-shaped combustion chambers, large valves and Variable Valve Timing (VVT). VVT Electronically adjusts when the exhaust valves are open and closed according to engine speed and load, allowing the engine to “breathe” cleaner and more efficiently.

The two-piece intake manifold combines cast aluminum lower with smooth runners for better air flow, bolted to a die-cast aluminum upper plenum. A revised air-cleaner box with a low-restriction filter sends air through a dual electronic throttle control into the intake module.

The air-fuel mixture in the cylinders is ignited by platinum-tip spark plugs fired by individual plug coils mounted on the cylinder-head covers.

Within the cylinders, pistons are equipped with large-diameter floating pins with bronze bushings for high-load capability. Forged powder-metal connecting rods are secured with aircraft-quality fasteners for increased fatigue strength.

Engine lubrication is managed by the large oil pump and a swinging oil pickup adapted from Viper competition engines, to ensure proper oil pressure in high-rpm and hard cornering conditions.

The 2008 Dodge Viper SRT10 ACR sports the latest evolution of the Tremec T56 six-speed manual transmission known as the TR6060. Power is transmitted to the rear wheels via a GKN ViscoLok speed-sensing limited-slip differential.

Manufacturing
The 2008 Dodge Viper SRT10 ACR will be hand built at the Conner Avenue Assembly Plant in Detroit.

The 2008 Dodge Viper SRT10 ACR will arrive in showrooms in the second quarter of 2008 at a Manufacturer’s Suggested Retail Price (MSRP) of less than $100,000. Complete pricing information will be released at a later date.

Street and Racing Technology
SRT creates some of Chrysler LLC’s boldest, most distinctive products by single-mindedly following its core vision: Deliver benchmark performance at the lowest price, and deliver it with absolute integrity and credibility.

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.























2008 Dodge Viper SRT10® ACR


SPECIFICATIONS

All dimensions are in inches (millimeters) unless otherwise noted.
Information shown is correct at time of publication, and is subject to change without notice.
GENERAL INFORMATION
Body Styles____________________________________________ _________________ Coupe
Assembly Plant_____________________________________ Conner Avenue (Detroit, Michigan)
EPA Vehicle Class_____________________________________________ _______ Two-seater
ENGINE____________________________________________ _____________ 8.4-liter V-10
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(a)
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)

(a) All dimensions measured with two passengers.

ACCOMMODATIONS
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
Layout_____________________________________ 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 Ratio_____________________________________________ ________________ 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
Front—Size and Type_______________ 14.0” x 1.26” (355.0 x 32) vented disc, with Brembo 44/40
opposing piston calipers, curved fin vented StopTech 2-piece slotted rotors
Rear—Size and Type_______________ 14.0” x 1.26” (355.0 x 32) vented disc, with Brembo 42/38
dual opposing calipers, curved fin vented StopTech 2-piece slotted rotors
Power Assist Type________________________ Tandem diaphragm vacuum with zero lost travel


return to main page