Dodge ACR Manuel utilisateur
Owner’s Manual
This booklet is a supplement to your Viper SRT10 Owner’s Manual.
Please review the Owner’s Manual in addition to this booklet.
1.0 Overview
The Viper ACR is the literal fusion of Street and Racing Technology. It takes
the awe inspiring performance capabilities of the Dodge Viper SRT10 to the
next level.
The Viper ACR is not certified as a race car and it is not equipped with a
racing safety cage, racing restraints or other racing safety equipment.
Throughout this manual there are notes of WARNING and CAUTION. Review
each of them before driving this car.
WARNING: It is recommended that all customers complete a high-per-
formance driving school prior to operating this vehicle. Speeds at the
handling limits of this car are much higher than with other sports cars.
Competitive driving and track outings can cause serious injury or death.
Drive safely.
Splitters are potent aerodynamic elements usually only found
on purpose built racing cars. The Viper ACR front splitter has
been specially adapted for street use with the addition of several
new features.
•Theleadingedgehasbeenscallopedbacktoreducefront
overhang for day to day driving
•Toughenedpolymerrubstripshavebeenaddedtoreducewear
and abrasion on the splitter panel
•Tensioncablessupportthefrontedgetoallowsomeupward
deflection in minor impacts with ramped surfaces
In spite of these enhancements, the splitter remains highly vulnerable
to impact because of its position on the car.
The front splitter will not flex or compress against impacts from the
front. If an impact does occur, have the splitter inspected. A cracked
or delaminated splitter should be replaced.
The Viper ACR aerodynamics are capable of high levels of downforce
which will noticeably affect the grip and handling of the vehicle at speeds
as low as 50 mph.
Regularly inspect all of the aerodynamic components and attachments for
damage or wear.
2.1 Front Splitter
2.0 Aerodynamics
Always leave ample room and be sure to educate
anyone you allow to operate the vehicle.
CAUTION: Use care when approaching parking blocks,
tall speed bumps and garage curbs. These surfaces
can severely damage your splitter.
Use care when driving up to sloped surfaces or over
speed bumps. Approaching a speed bump or a slope
at a slight angle may improve your clearance.
CAUTION: Hard contact with steep ramps may cause
damage to your splitter.
The front of the ACR splitter is supported by two stainless
steel cables. These cables and their attachments should be
regularly inspected.
The splitter cables have an adjustment capability, however it
is recommended to leave the splitter at the factory delivered
settings. The splitter cables may have some slack while the
vehicle is at rest. When the splitter is loaded, and the cables
are under tension, the panel should be approximately parallel
to the bottom of frame.
Solid polymer rub strips are attached to the leading edge of
the splitter panel. Regularly inspect these rub strips to avoid
damage to the carbon fiber splitter panel.
2.2 Splitter Components
Lock Nut
Length
Adjustment
Adjustment Nut
Splitter Panel
Center Rub Strip
Side Rub Strip
Track Extension
Splitter Cable
Screws
3/8” (10 mm)
CAUTION: Replace rub strips when they are worn down to 3/8 in. (10 mm) on the front
edge. This will avoid damage to the carbon fiber panel.
Regularly inspect the outboard knock-in threaded insert to avoid premature splitter wear
(right and left side). Replace these fasteners as needed in order to protect the carbon
fiber splitter panel.
A splitter track extension is included in the trunk of every Viper ACR. The track extension
is mounted in the same location as the center rub strip. The on-track aerodynamic
balance was optimized with the track extension in place.
To install the track extension, remove the eight (8) screws of the center rub strip and
install the extension in the same mounting locations.
Tighten fasteners to 70 in-lbs (7.9 N·m).
CAUTION: The track extension should only be used during closed circuit track events. The
track extension can cause premature damage to your vehicle if used on public roads.
2.3 Track Extension
Lock Nut
Length
Adjustment
Adjustment Nut
Splitter Panel
Center Rub Strip
Side Rub Strip
Track Extension
Splitter Cable
Screws
The ACR rear wing generates most of the car’s aerodynamic downforce.
The wing is a powerful element that will affect the handling of the car
at speeds greater than 50 mph. Extreme caution should be given to any
modifications to the factory settings.
WARNING: Do not operate the vehicle with the rear wing removed.
The aerodynamic balance of this setup is unstable and can cause
the loss of control.
Regularly inspect the wing panel and attachment points for damage
or looseness.
The Viper ACR on-track aerodynamics have been tuned and balanced
for the vehicle with the track extension installed.
Wing Stanchions
The wing stanchions are designed with adjustment capability but they
are delivered locked with tamper resistant fasteners.
The wing is delivered from the factory in hole position 2.
2.4 Rear Wing
Wing setting as delivered
Wing Adjustment
It is possible to adjust the wing using the hole pattern at the top front of
the stanchion.
Note: Adjustment to the wing setting is not recommended.
The wing is attached to the lower stanchions with thread locker and tamper
resistant fasteners. The warranty does not cover any modifications or
removal of these wing fasteners.
In general, moving the wing up (e.g. Hole 2 to Hole 1) will decrease
rear down force and decrease overall understeer. Moving the wing down
(e.g. Hole 2 to Hole 3) will increase understeer.
Each successive hole increases the wing angle of attack by 1.5 degrees.
Adjustment
hole numbering
Example: Hole 4
The ACR aerodynamic components are made from prepreg autoclaved
carbon fiber. Both woven and unidirectional materials are used.
The clear coated carbon fiber panels will have some variation and minor
waviness in the woven pattern. This is inherent to the process and a sign
of its authenticity.
All carbon fiber materials are susceptible to UV degradation during long
exposure to the sun. The ACR woven carbon components use the latest
technology for both the resin system and the clear coat. As with any
automotive coating, storing your vehicle in a covered location will guarantee
a long lasting finish.
The rear wing on the non two-tone ACR is molded completely with
unidirectional carbon fiber and painted in body color. Some patterned or
linear conditions may be visible in the painted carbon fiber surfaces. This
is also a normal result of the carbon fiber process.
2.5 Carbon Fiber
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