GENERAL

All SWRA events are run under IKF rules unless a SWRA local option class is not covered by the IKF rules. IKF rules are found in the "IKF Competition Regulations and Technical Manual". The latest version is located in Karter News Magazine and published every December. Updates are published every month in Karter News.

Rules specific to road racing and are found in section 300. Engine rules are located in section 600. General rules are in section 100.

Please be aware that if there is a contradiction in the rules, then the rule in the highest numbered section overrides all others in higher numbered sections.

IKF RULES UPDATES
http://www.ikfkarting.com/child/rules/rules.shtml

SWRA RULINGS

Hub set screws: None Required

Weights: Must be painted white and bolted to kart. Weight mounting bolts must be safety wired or cotter pinned.

TaG Front Brakes: Optional

LOCAL OPTION CLASSES


2008 SWRA Cadet Rules

General Prescriptions:

Everything not specifically specified within these regulations will be covered by the CIK/FIA International Karting Regulations. Any rule changes approved and posted will have a 30 day waiting period before being implemented. This will be from the posting date. Anything which is not expressly allowed will be deemed illegal.

Living Document:

This is a living document and as such is subject to revisions and changes as deemed necessary to continue the integrity of the SWRA program. All changes will be documented in the revisions table at the end of this document.



SWRA Technical Board:

John Sefcik - SWRA Technical Director

Any protest, to a disqualification, made by any SWRA Technical Official will be presented to the Technical Director and the Technical Board. Once presented and discussed, a final decision will be rendered. The decisions of the SWRA Technical Board are final and may not be protested.



Any changes or improvements must be submitted and approved by the Technical Director. These submittals must be in writing and must be from the importer or the manufacturer only, no exceptions. All SWRA engines are to be used just the way the manufacturer submitted them for approval with no exceptions.

NOTE: SWRA has a basic set of rules that may differ from the homologation papers and these rules must be enforced first before the homologation papers are enforced.



1. SWRA- Cadet Class Weights

 

2. Engine Specifications

2.1 STARTER - Entry must have all the starter components intact and working properly. The penalty for starting on the grid with an auxiliary starter will be to start at the back of the grid. The use of an aftermarket starter nut is allowed, but again, if a remote starter is used the entry will go to the back of the grid. A jumper battery pack for the purpose of starting on grid connected to the battery only will be allowed. At the discretion of the Race Director or Club, if a competitor comes to the grid and is unable to start his/her kart, he/she may, at the discretion of the Race Director or Club, us an auxiliary starter to start without being penalized. This is allowed only if it is announced at the Drivers Meeting by the Race Director or Club.

2.1A BATTERY - is non-tech, but must be of the same size and shape and must be of the same amperage and voltage as OEM 12 volt / 6.5 - 8.0 Amperage Hour. Any battery found to be cracked or broken and leaking will be removed from the event.

2.2 AIR BOX - OPEN, but must be CIK or RLV approved air box with two inlet tubes not to exceed 22.0 mm (+/- 1.0 mm) inside diameter and 95.0 mm minimum length. The 2004 CIK homologated KG and Freeline boxes with internal filters are only legal in SWRA Shifter and SWRA 4-Stroke classes. All air boxes may not be modified although the rubber flange may be trimmed on the inside of the air box to the flange lip. Aftermarket internal foam air filters are allowed as long as no modification is made to the air box itself. The position of the air box is non-tech.

2.3 CARBURETORS - OEM as supplied from the engine manufacturer. Washers may be added to the stock needle jets for the purpose of tuning, must be the OEM needle jets. The way the throttle cable connects to the arm and the bracket that holds the cable are non-tech, you must not modify the manifold or the carburetor. The arm, throttle shaft and butterfly are OEM with no modifications. No button head screws in butterfly. Surface finish of venturi and bore must remain as manufactured. Butterfly type: Must be of original manufacture and stock. The Welch plugs are non-tech but must be of the same size and shape that comes in the overhaul kits, the fuel may only pass through stock metering orifices. Any components not specified herein must be stock appearing. Inlet springs are non-tech item. Machine work to the throttle shaft is not allowed. Surface finish of venturi and bore must remain as manufactured. Carburetors must be matched to engine as homologated. All pumper style carburetors are single-pumpers with plastic fuel cap. Fuel adjustment needles must be stock from the needle top to the ''O'' ring step. Needles may be modified beyond the ''O'' ring step to attach needle extensions. No remote carb adjusters or triggers.

2.4 IGNITION SYSTEM - OEM as supplied and per factory specifications. Static timing must be at the factory settings, key must be in place with no modifications allowed. Spark plug is open, must have the washer intact unless a head temp sensor is used, then the washer may be removed. The spark plug wire and cap are non-tech items. New style key start ignitions on old and new style engines only are allowed.

2.5 PISTON / RINGS - OEM as supplied by engine manufacturer only. No interchange is allowed. Wrist pin must be made of ferrous material.

2.6 EXHAUST SYSTEM - Exhaust and silencers OEM as supplied by manufacturer. No plating or ceramic coatings permitted. Header and pipe: No interchange allowed. Pipe and header must be of original manufacture with no modifications. Exhaust system must start and complete race intact as intended for use by the manufacturer. Connector pipe where applicable must be round and of proper O.D. as to connect pipe to header as supplied by manufacturer. Connector pipe length non-tech unless otherwise specified. Addition of exhaust gas temperature lead and/or O-2 sensor is legal, but hole must be plugged if either sensor is not used. Welding for repairs allowed as long as original dimensions are maintained (id and length).

2.7 CLUTCH - OEM, as supplied with engine from manufacturer and as per factory specifications. Non-adjustable, single disk or shoe type clutch only. Clutch engagement not to exceed 7,000 RPM. To be tested on grid with remote RPM meter attached to the spark plug lead Test procedure clutch engagement will be tested at full throttle with kart held still against brake and clutch will not exceed posted engagement RPM. Clutch drum gear (amount of teeth on drive sprocket) will not exceed 12 teeth. Although you may not make any modifications to the OEM clutch drum, only factory clutch drums from the manufacturer will be allowed.

2.8 INTERNAL MODIFICATIONS - All internal modifications of any kind are strictly prohibited. This includes adding and/or deleting of parts; i.e. gaskets, nuts, bolts, etc. Example: if the manufacturer calls out a 10 thousand gasket, you may not use two 5 thousand gaskets as a replacement.

2.9 EXHAUST FLEX TUBING - Exhaust Flex Tubing is a non-tech item. Must be flexible tubing only.

2.10 BEARINGS, SEALS, GASKETS - Bearings are open but must be of the same type, material and design as the OEM bearings. Replacement bearings must be standard type, conventional bearings with steel or plastic retainers. They must be of the same width and outside diameter as original bearings. Ceramic or angular contact bearings are not allowed. Seals are open, but they must be unmodified and must be installed as the manufacturer intended. Gaskets are open but must meet the manufacturers' thickness and cannot be added or deleted. You may not stack base gaskets (must be single gasket as it was supplied from the factory). Combustion Chamber Volume (CCV) will be checked to the top of the spark plug hole.

2.11 ENGINE SPECIFICATIONS:

2.11A. Parilla Gazelle 60cc – Attached GazelleEngineSpecification.PDF – New style key start ignition allowed.
Exhaust length is open. IGN-Selettra 4 pole or Digital K. Updated IAME header approved.



3. Chassis Specifications

3.1 CHASSIS CONSTRUCTION - Round tubing only.

3.2 AXLES - Maximum diameter of 40mm.

3.3 BRAKES - Rear System ONLY.

3.4 BODYWORK - As per current CIK Cadet Homologation. Fairing not to exceed top of steering wheel – 20.5” measured from level ground.

3.5 CHASSIS ELIGIBILITY - As per current CIK Homologation or as per approved by SWRA.

3.6 CHASSIS INTEGRITY - Any chassis found to be cracked or broken will be disallowed from competition. Repair - may be welded or replaced only.

3.7 CHASSIS WHEEL BASE – not to exceed 38.00”.



4. Tire Specifications

4.1 TIRE SIZES - SWRA Cadet classes maximum tire size - 4.6 front / 4.6 rears. Diameter not to exceed 33”

4.2 TIRE COMPOUND – Tire compound is open



5. Gearing Specifications:

5.1 In order to limit top speed for Cadet class minimum gear ratio must not exceed 5.50. No engine drivers larger than 12 Tooth. Example - 12/66. A 12/65 or lower would be illegal.



6. Authorized Racing Equipment

6.1 RADIO COMMUNICATION - is not permitted in Cadet class.

6.2 TELEMETRY - Absolutely no communication will be allowed between the data acquisition system and any other item or system during any sanctioned SWRA event (practice, time trials or racing).

6.3 GAUGES - Data acquisition systems are allowed in all classes. Sensor type and number of sensors is open. If a sensor needs external power, the sensor may be powered from the data acquisition system or from the kart battery. All sensor data must be recorded on the data acquisition system. Any sensor not sending data to the data acquisition system must be removed from the kart.

Data acquisition systems used during any sanctioned SWRA event (practice, time trials or racing) will be limited to only the collection, display and storage of data. Absolutely no two-way communications will be allowed between the data acquisition system and any other item or system during any sanctioned SWRA event (practice, time trials or racing).

Any system that is capable of modifying/activation, ignition time, air or fuel ration mixtures, traction control, throttle position, or any other settings on the vehicle are expressly forbidden. The Race Steward, Race Director and/or Technical Officials may require that any or all data acquisition devices or sensors be removed or disabled during any sanctioned SWRA event (practice, time trials or racing).

Downloading of the data stored on the data acquisition system to a computer for data analysis after an event is permitted.

All teams shall provide any, and all, of the data to the Race Steward, Race Director and/or Technical Officials upon request during any sanctioned SWRA event (practice, time trials or racing). Loss of data or failure to produce data when requested may result in loss of qualifying times and/or finishing positions, or other penalties.



7. Fuel – TAG fuel only – not to exceed 98 octane.



8. Licensing

8.1 COMPETITION / MEMBERSHIP LICENSE - It is mandatory to hold a current IKF competition license, which includes the competitor’s membership number, prior to participation in any SWRA event. Membership and License can be obtained at the track prior to the event.

8.2 COMPETITION AGE - All competitors who will turn age 8 within the current calendar year will be deemed eligible to compete under the Competition Age rule as defined by IKF. To qualify for this class, driver must meet IKF Competition age requirements 8 to 12.



MINIMAX

• Original and unaltered MiniMax exhaust header, ROTAX P/N 273 972, is required, inside diameter 22 +/-0,2mm.

•The following inlet restrictor is required: Unaltered USRMC inlet restrictor shown at this link http://www.rmaxchallenge.com/page.cfm?content=4&display=127 with inside diameter of 19+0/0,2mm.

• Noise limit - per local limits or a maximum of 90dB (a) at 25 feet, measured perpendicular to the line of travel, engine under full load between 9,000rpm and 10,000rpm. (the stock muffler must be in good working order and as supplied by Rotax with the option of using threaded fasteners instead of rivets for securing the silencer end cap)

• Wheelbase - 41 inches (1041.4mm) maximum.

• The highest point at the center of the seat back shall be 12.0 inch minimum from ground level.

• CIK axle wall thickness requirements are not applicable in MiniMax class.

• Bumpers and bodywork, meeting industry standards must be employed at all times. For bodywork, CIK homologation is not required,

but construction must be similar in form and consistent with the size of the chassis. Quick fixation mounting method for nose cone is not required.

• Cadet nose cone may be of the full size design with maximum protrusion outboard of the front tires of 40mm per side.

• (Note: Grand National requirements only) Tire sizes MOJO D1(dry) 4.5x10-5 front and rear, Bridgestone YJP (wet) 4.5x10-5 front and rear. Maximum mounted tire width is 145mm.

• Tooth counts are 13:72 for 5.54 to 1 and 12:66 for 5.5 to 1



• Wide rear bumpers covering both rear wheels are mandatory. Bumpers must cover at minimum the inboard half of each tire, but may not protrude outboard of the edge of either tire except in wet conditions. Bumper construction must conform to the following requirements:

The rear bumper must consist of at least an upper and lower bar, both of 16mm minimum outside diameter.

Height of the top of the upper bar shall be no lower than the top of the rear axle or higher than the plane passing through the top of the front and rear tires.

Height of the top of the lower bar shall be 80 +/- 20mm from ground level.

The entire unit must be attached to the chassis frame in a minimum of two points to the main frame tubes,
flexible connection permitted.

The upper and lower bars must be of continuous loop profile with a minimum bar diameter of 16mm in all places except between the chassis rails. Area between the chassis rails must also be protected by a bar of 16mm minimum outside diameter but it is not required to be part of the continuous loop. A minimum of 80 percent of the opening between chassis rails must be protected if accomplished with a secondary loop extending downward from the top bar.

The upper and lower bars must be - in general terms - inline and parallel to one another and connected on the outboard ends by a full radius bend of sufficient dimension to prevent injury.

Any possible adjustability of the bumper must not incorporate or expose sharp edges, protruding fasteners or other elements that present any danger of puncture-type injury.

Final acceptance of any bumper’s acceptability with regards to safety lies with the event scrutineer.



Age: 9-12 255 lbs. minimum

Mandatory use of junior cylinder and restrictors as specified by ROTAX, or other restrictors that may be required by the 2007 USRMC Rules Primer. Spec gear would be optional at Race Director’s discretion. Chassis per 2007 USRMC Rules Primer. SFI, Chest Protectors mandatory, shoulder protection recommended.

Participant must be have reached 8th birthday before competing in a local RMC event. 13th birth date must be January 1, 2008 or after.