| a |
|
ARTICLES
|
|
CAPACITY
INCREASES WILL BE CALCULATED AS FOLLOWS:
|
|
SINGLE
POWER ADDERS
|
| Single
Turbocharging only: |
50%
|
| Twin
Turbocharging only: |
60%
|
| Single
Supercharger only: Standard
Roots: |
40%
|
|
Single Supercharger only: Roots
Hi-Helix: |
50%
|
|
Nitrous Oxide only: |
50%
|
|
TWO
POWER ADDERS
|
| Nitrous
Oxide with single Turbocharging: |
90%
|
| Nitrous
Oxide with twin Turbocharging: |
100%
|
| Nitrous
Oxide with single standard Roots-Type Supercharging: |
80%
|
|
Nitrous
Oxide with single Hi-Helix Roots-type Supercharging:
|
90%
|
|
OTHER
|
|
In
conjunction with the above (if applicable), the following
capacity increases must also be calculated:
|
| Hemispherical
and/or Pent Roof Heads |
20%
|
| 4
Valves per Cylinder: |
20%
|
|
NOTES
|
| 1.
Rotary engines will be classified as 1.8 x the swept volume. |
| 2.
All the capacity increases must be compounded before calculated. |
| 3.
All weights are applicable after a vehicle has completed a
run and must include driver. |
| 4.
Note: One cubic inch measures 16.3872 cubic centimetres. |
| 5.
MSA is currently evaluating cars/vehicles and performance
and will create certain minimum weight requirements for specific
engine, car and drivetrain combinations to compensate for
increasing performance and maintaining of safety standards.
(MSA circular to follow). |
|
| AL
1: AEROFOIL |
| A |
This
must be securely mounted. If adjustable, a positive locking device
must be used to prevent accidental movement.
|
| AL
2 : ARM RESTRAINTS (Refer to the Safety Regulations) |
| AL
3 : BALLAST (Refer to the Safety Regulations). |
| AL
4 : BATTERY (Refer to the Safety Regulations). |
| AL
5 : BODY / CHASSIS |
| A |
5.1
|
Must
be a production car body with at least two driver exit or entry
points. Bodies may be altered in height to a maximum of 100mm but
not in width, length or contour. Streamlining must not change the
outward appearance of the vehicle. Bumpers are not required. Sedan,
coupe, convertibles, roadsters, panel vans and bakkies may all compete
in this class providing all requirements are met. |
| A |
5.2
|
The
use of fibreglass or aluminium replacement panels is acceptable
providing the vehicle's standard appearance is retained. Body set
back must not exceed 10% of the original wheelbase as measured from
rear axle to centre of the original wheel well location. Rear wheel
wells may be altered for clearance to permit the use of larger tyres
but new edges must be adequately beaded. |
| A |
5.3
|
Replacement
floors are permitted providing a cross member of a minimum 50mm
x 3mm wall thickness is installed between the frame rails for adequate
driver's seat and harness anchoring. |
| A |
5.4
|
All
vehicles are required to fit a bonnet of standard appearance through
which bonnet scoops, injector tubes or superchargers are permitted
to extend. |
| AL
6: CHASSIS / FRAME |
| A |
The
chassis from radiator to rear of vehicle may be totally or partially
replaced. Any properly reinforced frame is accepted. Additional
members may be added for strength and/or roll cage installation.
(Refer to the Safety Regulations). The frame may be modified to
fit any alternative engine/gearbox/differential units. |
| AL
7 : DRIVER |
| A |
The
driver's body must be completely isolated from the driveline, differential
and wheels by suitable non-flammable body panels. The seat may be
relocated a maximum of 200mm back from the standard position and
must be mounted either left or right of the centre line. |
| AL
8 : ENGINE |
| A |
Must
be of an internal combustion type, but capacity, make, model and
year are free. Any modification may be made to the engine. Maximum
engine set back must not exceed 10% of the wheelbase as measured
from the front wheel centre line to the forward most spark plug
position. Rear-engine location permitted providing the engine used
is the same number of cylinders as the original and fitted in the
same location. |
| AL
9 : EXHAUST |
| A |
An
open exhaust is permitted. Split manifolds, branches or individual
pipes are permitted provided they are permanently and securely attached
with a metal connecting strap to prevent loss. |
| AL10
: FUEL |
| A |
Any
fuel complying with the General Regulations. |
| AL11
: FUEL SYSTEM |
| A |
Accessory
tanks may be fitted and fuel blocks can be used. Any type of mechanical
and/or electrical pumps may be used. (Refer to the Safety Regulations). |
| AL12
: FIRE EXTINGUISHER: Mandatory. (Refer to the Safety Regulations). |
| AL13
: FIREWALL: Mandatory. (Refer to the Safety Regulations). |
| AL14
: FLYWHEEL/FLYWHEEL SHIELDS: (Refer to the Safety Regulations). |
| AL15
: HEAD PROTECTION: (Refer to the Safety Regulations). |
| AL16
: HOOD SCOOP |
| A |
Scoop
must not exceed 300mm in height as measured from the base of the
scoop. |
| AL17
: IGNITION - Any ignition may be used |
| AL18
: INDUCTION SYSTEM - Any carburettor and fuel injection system is
permitted. |
| AL19
: INSTRUMENTS - Dashboard instruments may be installed at the owner's
discretion. |
| A |
Original
firewalls must be retained but may be modified or altered to suit
alternative engine/drivelines, but modifications must be of a permanent
nature, i.e. welded back into position. All firewalls must be sealed.
(Refer to the Safety Regulations). |
| AL20
: LIQUID OVERFLOW/CATCH TANKS |
| A |
Catch
tanks must be fitted and be completely leak proof and must be
securely mounted to a chassis member.
|
| AL21
: RADIATOR AND GRILLE |
| A |
The
Radiator is optional. Grilles are required either in original,
painted or fabricated form. The replacements must at least be
as large as the original frontal area. Reduction in height or
frontal area is not permitted.
|
| AL22
: REAR END: (Welded spider gears are not permitted). |
| A |
Front
drive cars may compete in this section and may be converted to
conventional rear-wheel drive. Quick change, limited slip or spooled
differential assemblies are permitted. The attention of competitors
is drawn to the possibility of handling hazards in the event of
an axle shaft breaking while the vehicle is fitted with a "locked"
rear-end. Four-wheel drive is permitted. (Refer to the Safety
Regulations).
|
| AL23
: ROLL BARS/CAGES: (Refer to the Safety Regulations). |
| AL24
: SAFETY BELTS/HARNESSES: (Refer to the Safety Regulations). |
| AL25
: SAFETY EQUIPMENT: For all driver and vehicle safety, (Refer to
the Safety Regulations). |
| AL26:
STARTERS |
| A |
Self-starting
is required with the exception of Super Altered. Push starts are
not permitted. |
| AL27:
STEERING/ALIGNMENT |
| A |
Steering
units may be relocated and/or substituted. (Refer to the Safety
Regulations). |
| AL28
: STREET EQUIPMENT |
| A |
Alternator,
windshield, wipers, fans, fan belts, horns, etc., are optional.
Headlights must be original size and in original location but need
not be operative. Painted or simulated headlights are permitted
however a minimum of one operative red taillight is required for
night events. |
| AL29
: SUSPENSION |
| A |
Full
automotive-type front and rear suspension is required. No solid
axles allowed. Each point of suspension must be equipped with at
least one effective shock absorber with a minimum of 25mm movement
in each direction. Excessive cutting or machining of suspension
parts is prohibited. Raising or lowering permitted but attention
must be taken of minimum ground clearance requirements. (Refer to
the Safety Regulations). |
| AL30
: STEERING |
| A |
Properly
fitted rack and pinion steering may be used in lieu of standard
steering. |
| AL31
: TRACTION BARS (Refer to the Safety Regulations) |
| AL32
: TRANSMISSION / GEARBOX |
| A |
Aftermarket
or production automobile transmissions of any year, make, model
or ratio are permitted in all classes. Operative reverse gear is
required. Transmission must remain in conventional location determined
by the engine used. All gearshift levers (if used) must be toped
with a ball or blunt handle. (Refer to the Safety Regulations). |
| AL33
: TURNAROUND |
| A |
Cars
in these classes must be capable of achieving 30-minutes turn around
time with the exception of Super Altered. |
| AL34
: UPHOLSTERY |
| A |
Upholstery
is optional but where used, must be of fireproof material. |
| AL35
: WHEELBASE |
| A |
Wheelbase
must not be altered more than 5% from standard measurement. All
vehicles in these classes may not have a wheelbase variance from
left to right of more than 25mm measured from centre of front wheel
to centre of rear wheel. |
| AL36
: WHEELS AND TYRES |
| A |
All
tyres must have sufficient clearance to allow for body movement
and a minimum of 100mm all round must be allowed for tyre growth.
Magnesium and other alloy racing wheels are permitted. Any type
of road tyre or slick is permitted providing the speed rating is
adequate for the vehicle performance. (Refer to the Safety Regulations). |
| AL37
: WHEEL WELLS / TUBS |
| A |
Wheel
wells or tubs may be enlarged or replaced to allow use of larger
rear tyres. If new wheel wells are constructed, they shall completely
cover the inside and top 180° of the wheel and tyre and also
completely isolate the driver compartment. |
| AL38
: WINDSCREENS AND WINDOWS |
|
38.1
|
A
windscreen must be fitted on all vehicles. Minimum height of front
screen is 125mm as measured vertically. All windscreens must be
transparent, clear and in good condition. Other than factory tint,
all front screens must be clear. |
|
38.2
|
Plexiglas,
Lexan, Perspex or any similar lightweight material may be used provided
it is of sufficient thickness to not flex at speed and it complies
with the above conditions. The placing of advertising or other decals
on either the front windscreen or front side windows must be restricted
to a maximum of the top or bottom 10% of the area so as not to obstruct
the visual passage of the driver. |
|
Note:
Any modifications or safety measures not listed in "Altered"
specifications are either not allowed or covered in "General"
and/or "Safety Regulations. |
