These guidelines are
intended to define the modifications that are acceptable to a Dodge
Viper Competition Coupe competing in the GT-MC class for the PRL
series. The GT-MC class is for Dodge Competition Coupes that have been
modified with any of the allowed GT-C EXCEPTIONS TO AS DELIVERED
AND any part or parts available from Dodge in the World
Challenge section (Section 14) and 2008 Body section (Section 16) of the
latest Viper Competition Coupe Spare Parts Catalog. Any driver found
not complying with the rules will receive a point penalty and/or a fine
and possible probation or suspension. Amendments to these rules may be
adopted at any time and will become effective at the next event.
These rules supersede all previous rules and bulletins.
1. MODIFICATIONS
The GT-MC class is for modified Viper
Competition Coupes that have been modified with any of the allowed GT-C
EXCEPTIONS TO AS DELIVERED AND any part or parts available
from Dodge in the World Challenge section (Section 14) and 2007 Body
section (Section 16) of the latest Viper Competition Coupe Spare Parts
Catalog. No modifications / adjustments to any component are allowed
except adjustments to caster, camber, toe, compression, rebound,
canister pressure, wing angle, ride height and tire pressure or where
listed in the EXCEPTIONS TO AS DELIVERED section below or where
specifically offered for sale in the World Challenge section (Section
14) and 2007 Body section (Section 16) of the latest Viper Competition
Coupe Spare Parts Catalog. No
permitted components or authorized modification shall additionally
perform a prohibited function. Any tampering or counterfeiting of the
seals will result in a point penalty and/or a fine and possible
probation or suspension.
All Viper engines may
be rebuilt or refreshed by McLaren or Arrow Engineering as the official
Dodge suppliers. Performance enhancements are not permitted.
Use of a Dodge “Endurance PLUS” engine will result in a weight penalty.
See Points System revised 5-12-08
2.
EXCEPTIONS TO AS DELIVERED (ALLOWED MODIFICATIONS FOR GT-MC CLASS):
1.
Air Filters may be changed to K&N.
2.
Oil substitutes and additives are permitted. Motul lubricants are
the official PRL lubricants. Users of Motul oil and one other Motul
product per event will be eligible for one bonus point per race event.
3.
Radiators may be changed but must remain in stock location.
4.
A close out panel may be added to funnel all air coming in
through the nose of the car into the radiator.
5.
A radiator screen of ¼ inch minimum mesh may be added. If added,
it shall be contained entirely within the bodywork of the vehicle.
6.
Brake pad compound and manufacturer at the discretion of the
driver but the size must be the same as OEM.
7.
The rear lower shock mounting bushing may be changed to the
updated bushing available from Dodge
but must remain in the stock location. The rear shock bracket
kit from Dodge (P/N P5153099) MAY NOT be used.
8.
Rear toe link tie rod bushings may be changed to spherical
bearings.
9.
Rear lower ball joints may be replaced by spherical bearings and
studs.
10.
Use of the Dodge Camber Shim kit is allowed (P/N P4510229).
11.
The hydraulic cooling fan may be removed by use of the Hydraulic
Fan Removal Kit available from Dodge (P/N P4510236). An electric
cooling fan may be used as an alternative to the stock hydraulic one.
12.
The front tow eye may be replaced with a Soft Tow Strap – Front
available from Dodge (P/N P4510235).
13.
The rear transmission mount may be replaced by an Archer Racing
urethane rear transmission mount.
14.
The use of a Quaife differential is approved.
15. The rear gear must
be a stock 3.07 ratio.
16. The front sway bar bushings may be replaced by Archer Racing
greasable front sway bar bushings.
17.
The rear sway bar bushings may be replaced by Archer Racing
greasable rear sway bar bushings.
18.
The stock flywheel may be replaced by a Fidanza flywheel. Users
of a Fidanza flywheel will be eligible for one bonus point per race
event.
19.
The stock battery and fire extinguisher bottle may be moved to
facilitate mounting of a passenger’s seat but may not be moved
otherwise.
20.
All cars may use a standard safety glass windshield, as delivered
with the car, mounted in the stock location and at the stock angle. In
addition to any other method of retention, the windshield shall be
secured using the factory installed tabs/clips. Windshields of alternate
material (i.e. Lexan MR-5 / MR-7 / MR-10 or FMR-102) are permitted.
Alternate windshields must be of 6mm minimum thickness. Alternate
material windshields must be identical in size and curvature to the
original glass component. Alternate material windshields must be
retained by at least 3 - 3” by 1” by 1/8”clips bolted or riveted to the
body at the top of the windshield and at least 2 - 3” by 1” by 1/8”
clips bolted or riveted to the cowl and extending over the bottom of the
windshield. These clips must be at least 12” apart. It is highly
recommended that alternate material windshields have in addition, three
inner supports to prevent the windshield from collapsing inward.
These supports should be 0.75” by 0.125” minimum straps of aluminum.
Spacing between these inner supports should be eight (8) inches minimum.
Alternate
material windshields may also be held in place by a drilled counter sunk
hole and bolted no more that 12” apart.
21.
The stock non-functional headlight shells may be replaced with
functional SRT-10 headlights.
22.
Use of any ONE part not otherwise allowed in the EXCEPTIONS TO AS
DELIVERED for GT-C will cause a car to be classified as GT-8+.
23.
Any part or parts available from Dodge in the World Challenge
section (Section 14) and 2007 Body section (Section 16) of the latest
Viper Competition Coupe Spare Parts Catalog. Use of any ONE part not
otherwise allowed in the EXCEPTIONS TO AS DELIVERED for GT-C will cause
a car to be classified as GT-MC.
24.
Transmissions may be rebuilt and can change the fifth gear to .80
and sixth to .63. NO other mechanisms can be changed.
Use of a
Dodge “dog box” will result in a weight penalty. See Points System
revised 5-12-08.
25.
Brake bias control valve is allowed outside of driver’s
compartment.
26. The
sealing of the hood and roof vents is permitted.
27.
No other changes are allowed.
3. WHEELS AND TIRES
1.
Forgeline wheels are the sponsor wheel of the series. Wheel
diameter, width, and offset must match the stock wheels as delivered on
the car. Users of Forgeline wheels will be eligible for one bonus point
per race event.
2.
In an effort to achieve parity, all cars shall run the series
spec tire - Hoosier Competition VRL tires. No Hoosier Autocross
“A” or other non-VRL compound tires will be allowed for GT-C cars in the
series.
3.
All Hoosier tires will be branded and will be purchased from a
PRL approved supplier.
4.
Tires cannot be soaked or treated in any fashion.
5.
Wheels must be certified at least once every two years. They must
be date stamped by Forgeline or an approved manufacturer. All wheels
must be inspected and dated before the car will be allowed on the track.
6.
Drivers must use the same set of tires for Qualification and the
Saturday (Secondary) race. A second set of tires may be used for the
Sunday (Feature) race.
7.
If a driver damages a tire, a PRL official must be called and
then the tire may be replaced at the same corner from which it was
removed with no penalty. If more than one tire must be replaced the
driver will go to the last grid position for the starting of the race.
8.
A PRL official may deem any tire unsafe and that tire must be
replaced. Refer to 7 above for any applicable penalty.
4. APPEARANCE
1.
Cars may be painted any color. Markings and numbers may be
painted.
2.
Numbers will be as assigned by the PRL and must appear on the car
in 4 places. Side number characters must be a minimum of 10” high and
6” wide and contrasting colors. Front and rear number characters must
be a minimum of 5” high and 3” wide and in contrasting colors.
3.
The car class (GT-MC) shall be marked on the rear bumper and must
utilize characters at least 4” high and 2.5” wide.
4.
Vehicles shall be neat and clean, show no body damage or primer,
and carry all prescribed identification marks and logos.
5.
Cars must have affixed all League Sponsor decals as listed in the
Sponsor Points. Color of decal at drivers option but must be proper
format.
5. DRIVER COMPARTMENT
1.
The stock bulk head must be retained and not be modified to keep
fuel out of driver’s compartment.
2.
The stock Racetech driver's race seat may be changed to Sparco
and inserts are legal. The driver’s seat shall be firmly mounted to the
structure of the car. The back of the seat shall be firmly attached to
the main roll hoop or its cross bracing so as to provide aft and lateral
support. Seats homologated to and mounted in accordance with FIA
standard 8855-1999 or higher need not have the seat back attached to the
roll structure. RaceTech/ Sparco seats must be mounted in
accordance with manufacturer instructions.
3.
The shifter my be changed for driver preference.
4.
A passenger seat may be added provided that it is of like
construction and installation as the driver’s seat. It must be fitted
with a 6 point harness of like construction and installation as the
driver’s harness.
5.
Six point safety harnesses must be utilized. The stock 6 point
harness may be replaced with an alternative brand of 6 point harness.
These harnesses must meet the requirements of and be mounted per the
latest SCCA General Competition Rules & Specifications. These harnesses
shall consist of two minimum 2" lap belts, two minimum 3" shoulder
belts, and two minimum 2" anti-submarine belt. All such systems shall
be mounted properly dated no more than two years old. TeamTech is
the official PRL safety harness provider and the use of a TeamTech
harness will result in one bonus point per race event towards the point
championship.
6.
Head Restraints are required for all drivers. Drivers will wear
their restraints at all times while on track.
7.
In car video is mandatory in all
cars. This will allow the Stewards of the Meet to resolve all rules and
track infractions by having all the information possible available
before making a ruling. The video camera must not be powered from the
car electrical system. Cameras
will be operable for both the Qualifying and Race sessions. Failure to
have an operational video camera will result in the car not being
allowed to race, unless approved by the Chief Steward.
8.
Drivers may adjust pedal location and steering wheel adjustment
fore and/or aft only.
9.
A PRL approved window net covering the driver’s window opening is
mandatory and must be securely installed. Window nets must be attached
to the roll cage. The window net must be easily removable from both
inside and outside the car allowing access through the window. Arm
restraints are recommended. If a passenger is given a ride an arm
restraint or window net must be utilized.
10.
Cars must have an on-board fire suppression system with a 10-11
pound Halon 1301 or 1211 or approved extinguishing material as a
minimum. Trigger must be marked with a red circle with the letter "E"
inside and be operable by the driver. Outlets must be directed into the
driver, engine and fuel compartments. All electric controlled systems
must be direct wired and carry current date code. One event grace
period.
6. SAFETY
1.
Radio communications between driver and crew is mandatory. With
the chief steward being on a specified channel it behooves the crews and
drivers to know instantly what is going on. VDI will assist in finding a
crew person to assist with the pit radio.
2.
Each car’s radio frequency must be registered with the VDI to
eliminate teams being on same frequency.
3.
Headlights and/or driving lights are permitted and required to race in
the rain. They may be located in the fog light area.
4.
Windshield wiper and defroster are required to run in rain.
5. A
removable rain light is required for the rear. Use to be determined by
Chief Steward.
6.
Helmets can be open or closed face but must carry a Snell 2005
(or newer) rating and be no more than 5
years old. Helmets have a date of manufacture stamped on the
inside. If you have facial hair and wear an open face helmet, you must
wear a balaclava.
7.
Drivers must wear a 3 layer-driving suit, gloves, socks, and
shoes, as approved by the VDI.
8.
All drivers must wear a properly installed head restraint
system.
9.
The fuel filler line must have NO fuel visible in it when the car
is brought to the grid before the race.
10.
The fuel filler line must be double clamped on both ends. One race
grace period.
11. Fuel
cell must current within five years of date of manufacture. One event
grace period.
7. OTHER
1. Any
team who visibly and respectfully displays a 3’ x 5’ U.S. flag on the
trailer on which your car arrived in will receive one bonus point
per weekend.
2.
All cars competing in VDI events must exclusively use the
Official Fuel (if specified) as supplied by the Official Fuel Supplier,
unaltered and without additives, for all official practice, qualifying
and races. Competitors are responsible for the proper handling,
transportation and security of their fuel from the time it is dispensed
to them and for the proper disposal of unused fuel and/or fuel drums
afterwards.
8. VEHICLE LOG BOOKS
The Vehicle Logbook for
each VRL Race car remains the property of PRL and will contain not only
the record of technical inspections, but also the major maintenance
performed and all transfers of ownership. The Vehicle Logbook number
will be assigned by the PRL and will be on the front cover. When the
vehicle is sold, traded, or scrapped, the logbook shall be sent to VDI,
545 N. Dearborn Ave., Chicago, IL 60610-4729. A new logbook will
be issued to the new owner. When the logbook has been filled, a new one
shall be requested from the VDI. The logbook shall be presented at
Technical inspection at each event entered. All PRL cars are subject to
normal safety inspection. Each entrant is required to have in his
possession at every race the PRL Logbook to aid scrutinizers in
inspection. Additionally, scrutinizers will check official seals. A
competitor may not be barred from competing at a specific event if a
seal is broken, or damaged, but the part may be considered suspect and
will be treated as such and will be noted in the PRL Logbook by the
Scrutinizer. If engine manifold, valve cover, timing chain cover, or
oil pan seals are broken, damaged, or missing, the engine may be torn
down for testing and resealing at the competitor’s cost prior to the
next event.
9. WEIGHT
Viper
Competition Coupes competing in the GT-MC class must weigh a minimum of
2,950 pounds after qualifying and either of the races, without driver.
Any of the top five finishers may be signaled to go to the impound area
and be weighed before going to their pits. Failure to go to impound
will result in disqualification for that session. If it is a qualifying
session the driver will be gridded at the rear for the race and lose all
qualifying points. If it is a race session the driver will lose all
points for that race. Cars can also be arbitrarily selected, as deemed
necessary, at each event to check that they meet minimum approved
weight. Failure to make minimum weight at the completion of a race will
result in loss of all points for that race.
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