Tucson Rallycross II March 31st, 2012

More info on the RallyCross Events page.

 

We had 23 cars a larger turnout than expected. The race has a great success.

If there is enough interest races would be every other month.

the course is located on the North East part of the facility.

RallyCross is the most widespread and readily accessible form of extreme dirt motorsport in the SCCA, and the perfect place to see if you have what it takes to powerslide your way to victory. Imagine a scaled down version of a rally stage laid out on a non-paved plot of land where the course is delineated by traffic cones instead of trees or rocks.

Below is the layout for the RallyCross at Musselman Honda Circuit on January 21st 2012

Rallycross General Information;
from the SCCA website
"RallyCross

RallyCross is the most widespread and readily accessible form of extreme dirt motorsport in the Sports Car Club of America, and the perfect place to see if you have what it takes to powerslide your way to victory. Imagine a scaled down version of a rally stage laid out on a non-paved plot of land where the course is delineated by traffic cones instead of trees or rocks. The entry fees and equipment requirements are considerably less than those necessary to enter any other forms of performance rally, so in most locations one need only arrive at event registration with a sound, hardtop vehicle and the entry fee. Many SCCA Regions have helmets to loan and will assist the first time competitor with entering the appropriate class, making their way through technical inspection and finding their way around the course. Best of all, it's great fun!

Rally, on A Budget

RallyCross is the most cost effective way to gauge a driver's interest and aptitude for "doing it in the dirt." RallyCross classes are tailored for local entrants but usually categorize cars according to number of driven wheels, engine capability and the style of tires mounted. Unlike Solo, a similar competition staged on paved surfaces, where an entrant's ranking is based on the single fastest run, RallyCross competitions are usually judged on the total of multiple runs."

Vehicle Classification;
Simple break down

Stock Rear Wheel Drive (SR)
Stock Front Wheel Drive (SF)
Stock All Wheel Drive (SA)
As long as the vehicle is in stock form it classes (S).

Prepared Rear Wheel Drive (PR)
Prepared Front Wheel Drive (PF)
Prepared All Wheel Drive (PA)
Once any performance add-ons are present that provide an advantage in rallycross the vehicle classes (P).

Modified Two Wheel Drive (M2)
Modified All Wheel Drive (M4)
Anything goes.

Detail Preparation Allowances;

Stock Rear Wheel Drive (SR)
Stock Front Wheel Drive (SF)
Stock All Wheel Drive (SA)

Preparation allowances:

1. All Cars must be equipped as from the manufacturer, with only
factory installed and port‐installed option packages. Options that
were only part of a package must be present with the entire package.
Complete option packages may be installed after purchase of the
vehicle.

2. Tires must be DOT approved. Tires marked “For competition only”,
“Not for street use” or similar, are not allowed. No part of the tire
may be modified or altered from its original form, either through
addition or subtraction, other than normal wear. Tires must be the
original size plus/minus 20mm cross section and 5% aspect ratio. No
studded tires are permitted unless ice or snow is present. Studded
tires may not be homemade using bolts or screws. Only street‐legal
studs are allowed. Tires may not interfere with any parts of the car
(fenders, fender liners, suspension, etc).

3. Any air filter may be used, but it must fit in the stock location.

4. The additions of protective equipment are allowed with the following
exceptions:
a. The modifications must only provide protection to the car and/or
occupants and provide no performance advantage.
b. Mud flaps may only be made of urethane and other flexible
plastic derivatives (i.e. no carbon‐Kevlar)
c. Skidplates protecting suspension and drivetrain components may
only be made out of metal, composite materials or plastic
derivatives.
d. Driver restraints and roll cage may be added.
e. Additional or replacement hood and trunk latches are permitted.
All latch systems must be secure.

5. Dress‐up and convenience items which do not give a performance
advantage, reduce the weight of the car, or weigh less than the
replaced standard part they are replacing are allowed (i.e. shift knobs,
pedal covers).

6. ABS and/or traction control systems may be electronically/electrically
disabled but not removed.

7. Vehicle lights may be replaced with alternate bulbs and housing.
Auxiliary lights may be added. The total number of lights shall not be
less than standard.

8. Any brake pads may be used.

9. Fuel may be any type of unleaded, E85, or diesel fuel commonly
available at the pump. Alternative fuels must be pre‐approved by the
event RallyCross Safety Steward prior to the event. No other alcohol
fuels or nitrous oxide are allowed.

10. Any clutch disc or pressure plate may be used provided it fits all the
other unmodified, stock components.

11. Exhaust systems from the catalytic converter back may be removed
or replaced with the following requirements:
a. The exhaust must exit to the rear of the driver.
b. The exhaust must comply with local noise restrictions

12. Any type wheel may be used provided it complies with the following:
Wheels must be of the same diameter and width as the OEM wheel.
Wheel offset (backspace) must be within 0.375"(9.5mm) of original
equipment wheel offset.

13. Shocks/dampers may be replaced with OEM or aftermarket
replacement units intended for the specific year make and model
used. The stock spring must be used as it was on the OEM unit. The
spring perch must be factory welded to the damper or use the exact
attachment method and position as OEM. Adjustable dampers are
only allowed if the OEM unit was adjustable and must retain the same
number of adjustments or fewer as OEM. Remote reservoir shocks
are only allowed if they are exact OEM units.

14. The front sway bar may be added, replaced or removed. A
replacement front sway bar may serve no other purpose than
originally intended by the vehicle manufacturer. In the case where
the front sway bar is also a suspension locating link, stock geometry
and methods of attachment must be maintained.

15. Any wheel alignment settings may be used provided the settings can
be accomplished within the unmodified adjustment range as
delivered from the factory. Any alignment techniques allowed by the
factory service manual from the vehicle manufacturer may also be
used.

16. Aftermarket replacement batteries are allowed provided they are the
same type, group size and location as originally equipped.

17. Spare tires, tools, jacks, and any related covers may be removed.

Prepared Rear Wheel Drive (PR)
Prepared Front Wheel Drive (PF)
Prepared All Wheel Drive (PA)

Preparation allowances:

1. All Rally Stock category modifications are allowed.

2. Any sway bars and their mounting may be used or removed.

3. Any brakes may be used.

4. Exhaust systems from the cylinder head exhaust ports back May be
replaced with any material with the following requirements:
a. The exhaust must exit to the rear of the driver.
b. The exhaust must comply with local noise restrictions.

5. The intake system upstream from the throttle body may be replaced
with any material. Forced induction components cannot be changed
or added (turbochargers, superchargers, intercoolers). Turbocharger
boost regulation systems, either electronic or mechanical, may be
modified or replaced.

6. Short shift kits are allowed.

7. Front and/or rear strut tower bars are permitted.

8. Any dampers may be used but the damper must mount to the original
mounting position using unmodified mounting points. Springs may
also be replaced, but they must be of the same type and use original
mounting points. Threaded collars and camber plates are allowed.

9. Electronic engine controls may be modified or piggybacked, but not
replaced.

10. Any tire is allowed except home built studded tires.

11. Any front seat may be used, provided the seating surface is fully
upholstered. This does not permit the substitution of a passenger’s
seat with a child or miniature seat of any type. Any substituted
passenger’s seat must be sufficiently large and strong to be capable
of adequately accommodating an adult, such that it could be used as
the driver’s seat. Cars may have no fewer than the original number of
seats. Seat belts are required in all cars; however; the number of
attachment points may not be less than originally equipped.
Installation of shoulder and lap belts is strongly recommended.
Additional belts must be installed per the belt manufacturer's
recommendations.

12. Any non‐metallic bushing is allowed.

13. Wheels are unrestricted.

14. On carburetor equipped cars, any bolt on intake manifold or
carburetor may be used. Any air filter system and associated parts
may also be used.

15. Vehicles may substitute one differential with a mechanically governed
limited slip or locking unit of an alternate type. This includes spools
and welded stock differentials. This does not allow the use of a
differential with external controls (electronic or otherwise) to
regulate slip or locking. Differentials must be contained in a stock
unmodified housing/third member with stock or optional ring and
pinion ratios available for the specific model, body, and year of the
vehicle only. 4wd vehicles may not substitute more than one
differential with an alternate type.

16. Batteries may be substituted with any type. Relocation of the battery
or batteries within the engine compartment or trunk area/luggage
compartment behind the rearmost seats is permitted. Longer battery
cables may be substituted to permit relocation and holes may be
drilled to accommodate mounting of the battery and cables.

17. Accessory drive pulleys and belts may be replaced.

18. Any clutch disc or pressure plate may be used.

19. On automatic transmission vehicles, any torque converter may be
used.

Modified Two Wheel Drive (M2)
Modified All Wheel Drive (M4)

Preparation allowances:

1. All Rally Prepared category modifications are allowed.

2. Any Electronic engine controls may be used.

3. All non‐essential components may be removed, replaced or relocated
for the purpose of weight reduction or balance with the following
requirements:
a. The shape of the body must remain recognizable as that of the
manufacturer’s make and model.
b. The body must be made of a fire resistant material.
c. Structural strength of the vehicle may not be reduced or
compromised.
d. Doors, hoods, trunk lids, sunroofs, hatchbacks, etc. need not
function as originally designed. Bumpers, grilles, lights and trim
may be removed. Side mirrors and tail/stop lights are not
required.
e. Side and rear windows may be removed or replaced with Lexan or
equivalent. Windshield may be replaced with Lexan or equivalent
with addition of a full roll cage built to SCCA Improved Touring
specifications or better.
f. The interior components may be completely removed and/or
replaced. Any edges created by these modifications that the
driver or passenger may contact must be properly insulated to
prevent injury.
g. Roof panels must be metal of at least the same thickness as
original. Sunroof panels may be replaced with sheet metal of at
least the same thickness as an original roof skin without sunroof.
Inner roof structure may only be modified with addition of a full
roll cage built to SCCA Improved Touring specifications or better.

4. Any eligible (per 6.1) log booked race car or car currently legal for
stage rally competition in other sanctioning bodies may run in its
appropriate Rally Modified class regardless of whether it meets the
Rally Modified rules.

5. Any engine may be used but must be internal combustion.

6. Any drive train may be used

7. Any suspension may be used. This allows changes to all components
and geometry.

8. Additional chassis braces and seam‐welding are permitted.

9. Any fuel system may be used provided gasoline, E85 or diesel fuel is
used. Any NON‐STOCK fuel cell, filter or pump located in the
passenger compartment must be shielded by a metal bulkhead. Any
fuel lines running through the passenger compartment must be of
metal or metal braided construction.