WHOSCAR

Wichita H.O. SCale Auto Racers

Rules & Guidelines

MISSION STATEMENT

WHOSCAR (Wichita H.O. SCale Auto Racers) is dedicated to promoting fun and competitive H.O. scale slot car racing for people of all experience levels, ages, and gender in the greater Wichita area.

INTRODUCTION

WHOSCAR racing events are intended to be conducted in a manner that supports fun, fair competition. During competition, judgment calls may need to be made for exceptional circumstances. Decisions will be made as objectively as possible with fun and fairness in mind. Participants and spectators are expected to remember that these are just toy cars. Good sportsmanship and common courtesy are of the utmost importance.

Table of Contents

MISSION STATEMENT. 1

INTRODUCTION.. 1

GUIDELINES and DEFINITIONS. 4

PARTICIPANT GUIDELINES. 4

SPORTSMANSHIP GUIDELINES. 4

DEFINITIONS. 5

SERIES CHAMPIONSHIPS & RACE RULES. 6

SERIES CHAMPIONSHIPS. 6

Tiebreakers. 6

Series Points. 6

Bonus Points. 6

SERIES RACE TECHNICAL INSPECTION RULES AND PROCEDURES. 7

Pre-Race Technical Inspection. 7

Post-Race Technical Inspection. 7

SERIES RACE FORMATS AND RULES. 8

Series Race Format 8

Disqualifications. 8

General Event Rules. 8

General Equipment Rules. 9

Series Race Rules. 10

Turn Marshal Guidelines. 11

Driver Rules & Guidelines. 11

Event Schedule Guidelines. 12

Pre-Race Practice. 13

“Once On Then Off” Practice Procedure. 13

“Rotation” Practice Procedure. 13

CAR RULES. 14

GENERAL CAR RULES. 15

TJET CAR CLASS RULES. 16

TJet Box Stock Class. 16

TJet Stock Class. 20

TJet Super Stock Class (aka “FrayJet”) 20

TJet Slip-on Super Stock Class. 20

TJet Unlimited Class. 20

1/64TH SCALE CAR CLASSES. 21

Storm Chaser (Spec Storm) 26

GTX.. 27

GUIDELINES and DEFINITIONS

PARTICIPANT GUIDELINES

The following participant guidelines are intended to promote fairness and competitiveness for the enjoyment of each participant. Members are expected to understand that when a newcomer visits or participates at an event for the first time, the event proceedings may be adjusted. This is so that newcomers can be introduced to members, the types of cars being raced, how the event practices and races are structured. Newcomers should also be accorded priority for practice time and technical help.

· Everyone is encouraged to submit constructive suggestions or ideas that would make our racing more fun, fairer, realistic, competitive, or less expensive.

· Everyone is encouraged to share technical or product information. Information should be based on objective experience or trusted sources, not bias, hearsay, or rumor.

· Everyone is encouraged to help promote a fun, fair, and competitive environment that should also provide opportunities to challenge and improve each participant’s skill and experience levels, if they are willing to strive to do so.

SPORTSMANSHIP GUIDELINES

The practice of good sportsmanship is expected at all times, exemplified by the following examples:

1. Respect and courtesy for others at all times.

2. Refrain from the use of profane or offensive language, particularly when guests, ladies, and minors are present.
* This is not intended as ‘censorship’ or ‘restriction of free speech’ – it is an example of the expectation of responsible exercise of that privilege, bearing in mind the WHOSCAR mission statement.

3. Never borrow parts or equipment without permission. Feel free to ask for help with parts or equipment.

4. Provide equal track and lane time opportunity for others during practice. Accord priority to guests, ladies, and minors; and to those struggling with car or other equipment problems.

5. During practice, as a courtesy to other drivers, drivers should take turns serving as turn marshals, particularly if they expect the same courtesy. The general expectation is one turn marshaling per one turn practicing.

6. Never, ever raise your voice at a turn marshal.

7. Remember, YOUR racing will be better off for practicing and encouraging good sportsmanship!

DEFINITIONS

General Rules - Rules which are applicable to all car classes.

Stock - Any part or condition that normally comes with a car, as equipped by the original manufacturer.

Same as Stock – A readily available replacement part, dimensionally and materially the same as the Stock part. The part must fit without modifying the car or the part.

Stock Replacement - A readily available part similar to the stock part being replaced. The part must fit without modifying the car or the part.

Readily Available - Mass produced for H.O. slot car racing and available through normal commercial means.

Normal commercial means - Available through a legitimate retailer, distributor, or manufacturer by direct, over the counter, mail order, or electronic sale to the general public. Private sellers may be used if availability through these types of means is also satisfied.

Legitimate retailer, distributor, or manufacturer – A public, retail business. Generally, a legally recognized entity.

Adhesives or glues - various types of glue, single or multiple part epoxies, thread lockers, and similar substances. This does NOT include adhesive tape (masking tape, duct tape, cellophane tape, etc.).

Controller – resistive or electronic device used to regulate the level of track power supplied to the car.

Control Devices – Other controls internal or external to the controller that modify the power or response of the car, including:

· Choke – device or circuit intended to limit the amount or rate of change of power to the car.

· Choke bypass – device or circuit intended to ‘bypass’ the choke and provide full power to the controller or to the car.

· Sensitivity control – device or circuit intended to adjust or control the car’s power response.

· Coast control - device or circuit intended to control the minimum amount of power to the car to affect its ‘coasting’ speed.

· ‘Brakes’ (Dynamic Braking) – Magnetic effect that slows the motor’s rotation, hence dynamically slowing or ‘braking’ the car.

· Brake control - device or circuit intended to adjust or control the dynamic braking effect of the car’s motor.

Impound – Area where cars are kept after passing technical inspection, and during the driver’s “sit out” rotations.

‘On Deck’ Driver – The driver who will rotate into the race in the next race heat.

Rider – Occurs when a car deslots and lands in the slot of another lane, thus being (un)controlled by the other driver.

Sit Out – Refers to drivers who are not in the current race heat in round robin races with rotations, with more cars than lanes.

Track Call – Interruption of track power during a race for certain situations.

Track periphery - Generally meaning at the driver’s or marshal’s stations, and at least three (3) feet around the track otherwise.

Traction compounds –substances (such as ‘tire glue’, WD-40, saliva, etc., not including tape) used to enhance tire traction.

Turn Marshal – One assigned a track position to return deslotted cars to the track.

Race Director – The club officer or individual responsible for running the lap scoring and timing.

Technical Director – The club officer or individual responsible for technical inspection of cars, and car rules interpretations.

SERIES CHAMPIONSHIPS & RACE RULES

SERIES CHAMPIONSHIPS

· Series Championship: Standings determined by cumulative Series Points, including Bonus Point(s), less "drop(s)".

· Rookie of the Year: Standings determined by cumulative Series Points, including Bonus Point(s), less "drop(s)".

· “Best Sportsman” Determined by cumulative total of driver’s votes from each Series race.

· “Best Marshal” Determined by cumulative total of driver’s votes from each Series race

"Drop" = worst finish or 'no show'. There may be one drop (4 race Series) or two drops (5 or more race Series).

Tiebreakers

Ties shall be broken by resolving the highest position first.

1. Most points head-to-head, including Bonus points.

2. Best finish head-to head (most Firsts, then most Seconds if still tied, and so on down).

3. Final tiebreaker: Best finish, last head-to-head race.

Series Points

Series Points shall be awarded at each race by finishing position as follows:

1st	25 pts	2nd	23 pts	3rd	21 pts	4th	19 pts	5th	18 pts
6th	17 pts	7th	16 pts	8th	15 pts	9th	14 pts	10th	13 pts
11th	12 pts	12th	11 pts	13th	10 pts	14th	9 pts	15th	8 pts
16th	7 pts	17th	6 pts	18th	5 pts	19th	4 pts	20th	3 pts
21st	2 pts		22nd and below		1 pt		Disqualification		0 pts

Bonus Points

· Participation Bonus: 1 bonus point added to a driver’s Series total if that driver raced in all Series Races that season, without disqualification. NEW Disqualifications shall NOT count towards the Participation Bonus.

SERIES RACE TECHNICAL INSPECTION RULES AND PROCEDURES

Pre-Race Technical Inspection

1. All cars shall be submitted to pre-race technical inspection during the scheduled time.

2. Pre-race technical inspection shall consist of:

a. Visual inspection for legal and safe appearance of the car and its parts. The body may be removed for this purpose.

b. Visual inspection on a test track for track contact by four rolling tires, one guide pin, and two pick up shoes only.

c. Measurement of the car’s width, front end play, and if applicable, weight.

d. Check all magnets relative to a reference car or magnets.

3. It is NOT the technical inspector’s responsibility to identify or correct problems that may affect the performance of an otherwise legal car.

4. It is the owner or driver’s responsibility to ensure that the car is ready, legal, and safe for competition.

5. If there are any car, part, or modification legality questions they should be raised to the Technical Director prior to submitting the car for inspection.

6. Cars failing technical inspection must be corrected by its owner/driver, be resubmitted to and pass technical inspection before being accepted into the race field.

7. Cars passing technical inspection shall be placed in impound until placed on the Start line for its first heat.

8. No further work on the car is allowed until after the car is placed on the Start line for its first heat.

Post-Race Technical Inspection

1. At the conclusion of the race, all cars shall be subject to post-race technical inspection, including tear down.

2. Post-race technical inspection for all cars shall consist of verification the car frame and body have not been replaced, and repeat of the pre-race technical inspection.

3. Post-race technical inspection for the top three finishing cars shall also consist of teardown to:

a. Remove armature for inspection for illegal modifications and measurement of resistance of each pole at room temperature or after a 5 (five) minute cool down.

b. Inspect other internal parts and modifications for legality as applicable to the car class.

c. Inspect the magnets for illegal modifications or movement restrictions as applicable to the car class.

d. If disqualified for failure to pass technical inspection, the next finishing car shall likewise be inspected. The process shall be repeated until the top three legal cars are determined.

4. Cars failing post-race technical inspection shall be disqualified (see Disqualifications).

SERIES RACE FORMATS AND RULES

Series Race Format

1. The Main shall be Round Robin Timed Heats with Rotation: 3 minute heats with 90 second lane changes between heats.

2. Each driver shall race on each lane in rotation. The race is concluded when all drivers have run all lanes.

3. Lane Rotation shall be by European Rotation (if the lap counter supports it).

4. Starting positions shall be determined by random draw.
OPTIONAL: Thereafter, starting positions shall be determined by lane selections in order of Series points standing; first place driver first then down through the order. Unranked drivers shall select remaining starting positions in random order.

5. If the number of participants warrants it (generally more than ten drivers), qualifying or Semi races seeded in the same manner may be used.
Lane selections in the Main (for four lane tracks) shall be by:

a. First place driver with most laps and sections from either Semi.

b. First place driver with second most laps and sections from either Semi.

c. Next driver with most laps and section from either Semi.

d. Next driver with second most laps and sections from either Semi.

6. Each driver shall start their first heat from the Start line. Thereafter, each driver shall start the next heat from the car’s stopping position at the end of the previous heat.

7. At the conclusion of each driver’s final heat, the driver’s car shall remain in its stopping position until its track position is marked and/or recorded, then impounded until post-race technical inspection and the race results are concluded.

8. Drivers or others shall NOT (re)move cars. Penalty: Offender’s car shall be moved to the first section AFTER the lap counter.

9. Final positions shall be based upon total laps, sections, and car track positions after the final heat of the race.

Disqualifications

Disqualification shall result in loss of all points, awards, eligibility for Series Participation Bonus, and (if applicable) forfeiture of all entry fees for that race.

General Event Rules

1. No food or beverages permitted in the track periphery.

2. No lubricants or adhesives permitted in the track periphery.

3. Do not lay controllers or other equipment on top of the track.

4. Do not leave controllers or other equipment at the track.

General Equipment Rules

1. Only cars legal for competition can be run in WHOSCAR events.

2. Racing class requirements are published, and explained at any time. Running an illegal car or not adhering to event rules shall result in disqualification from that race.

3. Drivers shall use only the car(s) they submit to technical inspection. (Some events may allow “back up” cars.)

4. Only readily available parts are to be used. If a part is questioned, the racer must provide the name of manufacturer, part number, cost, and a source of the part.

5. The driver has final responsibility to prove the legality of the car entered.

6. Any resistor or electronic type controller, and control devices (internal or external to the controller) may be used in competition unless otherwise specified. Controller or control devices that store or provide power to the car or track after the track power source is turned off or interrupted (‘track call’) shall NOT be allowed.

7. Tobacco or alcohol-related sponsorships, or questionable graphics (including decals, banners, pictures, slogans, car features, or driver and passenger figures) shall NOT be allowed on cars or tracks.

* This is not intended as ‘censorship’ or ‘restriction of free speech’ – it is an example of the expectation of responsible exercise of that privilege, bearing in mind the WHOSCAR mission statement.

Series Race Rules

1. Drivers shall not obstruct any other driver's line of sight during the race.

2. Lane Changes:

a. Drivers are expected to complete their car service and move controller within the allotted lane change time.

b. Only drivers starting the next heat (or their pit crew) shall be allowed to work on cars during the lane change.

c. All cars rotating off track shall be immediately impounded after their track position is marked and/or recorded.

d. Impounded cars shall be returned to the driver at the start of the lane change prior to the driver’s next rotation on track,
or ‘on deck’ rotation for races incorporating an ‘on deck’ driver rotation.

e. The next heat shall begin immediately upon expiration of the lane change (or extension).
It is the driver’s and marshal’s responsibilities to be ready for the start of the next heat.

3. Lane Change Extensions:

a. Each driver may one request ONE lane change extension equal to the heat length, for any reason, during the race.

b. Only ONE lane change extension shall be allowed per lane change.

c. ONLY drivers requesting extension (or their pit crew) shall be allowed to work on cars during the extension. All such drivers shall be charged with the extension.

d. Work on all other driver’s cars and controller hook ups shall cease at the expiration of the regular lane change.
PENALTY: Offender’s car shall be moved to the first section AFTER the lap counter, and a 1 (one) lap penalty assessed.
Repeat violation shall result in disqualification from the race.

4. Drivers are expected to marshal race heats in which they are not racing, or provide a substitute acceptable to the other drivers and the Race Director IN ADVANCE of the start of the heat.
PENALTY: Forfeiture of the driver’s next heat lap total (or previous one if driver has already completed driving rotations).

5. Only Turn Marshals are allowed to marshal cars for any reason (including ‘green flag pit stops’) while track power is on.

a. If a car requires service the driver may request it from the nearest Turn Marshal or Race Director, who shall remove it from the track and HAND (not throw) it to the driver (or pit crew).

b. After repair is complete, the driver (or pit crew) MUST HAND the car back to the Turn Marshal or Race Director to return it to its stopping position on the track to restart.

c. PENALTY: Driver is disqualified for the remainder of that heat.

6. Track calls (power off during ‘race time’) shall be allowed only for a track or power problem, or unsafe condition.

a. Track calls may only be requested by a Turn Marshal or the Race Director.

b. Drivers may courteously bring a situation to the attention of a Turn Marshal or the Race Director.

c. No work on cars is allowed during a track call.

d. PENALTY: Driver is disqualified for the remainder of that heat.

Turn Marshal Guidelines

1. Do your best, learn and improve from mistakes; that is all we can ask.

2. Be ready at your (assigned) marshal position prior to the start of the heat; hands ready, NOT in your pockets or holding something else. Loose fitting clothing should be tucked in or rolled up. Set your controller or other equipment aside – not hanging around your neck or in a pocket from where it might fall or hang onto the track.

3. Focus on your assigned track area; do not watch the race or lap counter; avoid distracting drivers or other marshals.
Be aware of which car caused a wreck, the order cars deslotted, cars simply stopped to avoid driving into a wreck (it’s rare, but sometimes happens), and of oncoming traffic.

4. First priority is to avoid hindering cars that are still running. Deslotted cars should be removed as quickly as possible, and replaced when there is opportunity to do so without hindering oncoming traffic; delay if necessary to let it pass.

5. Clear deslotted cars then return them to the track in the area they deslotted, but avoid replacing cars in track joints.
DO NOT advance them to make up for marshaling mistakes, riders, etc.; you may cause another wreck or delay the car.

6. In multiple car crashes, cars should be returned to the track in the opposite order they deslotted. (First Off, Last On).

7. If during the marshaling of a car, you ‘thumb’ another car out, the ‘thumbed’ car should receive highest priority.

Driver Rules & Guidelines

1. Remember, these are TOY cars and we’re just trying to have fair, competitive, FUN races.

2. Do NOT yell at, verbally abuse, or distract Turn Marshals! PENALTIES:

a. Warning for first offense.

b. Disqualification from the remainder of the current heat for a second offense during the same race.

c. Disqualification of driver’s Series results for third offense during the remainder of the EVENT (even if not the same race).

d. Disqualification for the remainder of the SEASON for a second disqualification from a Series event.

3. DRIVERS, it is YOUR responsibility not to put your car at the mercy of a turn marshal, to avoid driving into wrecks or into positions to be wrecked by another car!

4. Do not hinder the sight lines of other drivers. (Some tracks may impose a “toe line” behind which drivers must stand.)

Event Schedule Guidelines

Event schedule guidelines for event hosts and participants to help effectively run events for the enjoyment of all participants.

Example for ‘Full’ Schedule:

Practice: 2 hours minimum. Track power off at end.

Tech Inspection for Race #1: Open 15 minutes before Practice End; Close 15 minutes after Practice End all classes
(time may be adjusted depending on number of entrants and types of races)

Qualifying/Race Set Up – 15 minutes (starting after Tech Inspection Closed). Track power off.

Race#1 Qualifying (skip if no qualifying or Random Draw), then Race through Post-Race Tech Inspection (if applicable)

Race#2 (Late Arrival*) Practice & Tech Inspection

Race#2 Qualifying (skip if no qualifying or Random Draw), then Race through Post-Race Tech Inspection (if applicable)

Race#3 (Late Arrival*) Practice & Tech Inspection

Race#3 Qualifying (skip if no qualifying or Random Draw), then Race through Post-Race Tech Inspection (if applicable)

… and so on until Event Complete

* Late Arrivals should be given priority during the limited practice times.

Example for ‘Compressed’ Schedule (no late arrival practice or tech inspection):

Practice: 2 hours minimum. Track power off at end.

Tech Inspection, ALL CLASSES: Open 15 minutes before Practice End; Close 15 minutes after Practice End all classes
(time may be adjusted depending on number of entrants and types of races)

Qualifying/Race Set Up – 15 minutes (starting after Tech Inspection Closed). Track power off.

Race#1 Qualifying (skip if no qualifying or Random Draw), then Race through Post-Race Tech Inspection (if applicable)

Race#2 Qualifying (skip if no qualifying or Random Draw), then Race through Post-Race Tech Inspection (if applicable)

Race#3 Qualifying (skip if no qualifying or Random Draw), then Race through Post-Race Tech Inspection (if applicable)

… and so on until Event Complete

Pre-Race Practice

The following procedures and courtesies are recommended:

1. Pre-race practice: Two (2) hours practice minimum; track power turned off at end.

2. Pre-race practice rotations: 2 minutes per lane with 60 second lane changes. Enough practice time should be budgeted that so that each driver has at least one, preferably more, practice opportunities on each lane.

3. Practice sessions should be organized by racing class if possible to minimize speed disparities between cars on track.

4. One or both of the following practice procedures may be used.

“Once On Then Off” Practice Procedure

1. Drivers must marshal at the marshal position corresponding to the lane color they wish to practice on prior to actual practice.
(Except the first practice rotation, which shall be on a ‘first come, first served’ basis.)

2. Drivers may not move to another lane for practice (unless it is open) without marshalling first.

3. Drivers who have already practiced on a particular lane should yield to drivers who have not practiced on that lane yet.

“Rotation” Practice Procedure

1. Use ‘round robin with sit out’ rotation. Set up driver order by random placement.

2. Waiting drivers enter the marshal rotation in the first marshal position, then rotate through the marshal positions (including the ‘on deck’ driver station) to reach the first lane.

3. After each driver completes the ‘rotate off’ lane heat, they exit the driver’s panel, then (re-)enter the marshal rotation until all driver rotations are completed. If time permits, additional ‘open’ rotations may be run.

4. Drivers who have already practiced should yield to drivers who have not practiced yet.

CAR RULES

The following car rules are intended to promote a fun, fair, and competitive basis for racing. Remember, these are TOY cars!

The following General Car Rules shall apply to all WHOSCAR slot car classes, except where specified otherwise.

TJet Super Stock Class (aka “FrayJet”)

TJet Slip-on Super Stock Class

TJet Unlimited Class

1/64TH SCALE CAR CLASSES

Storm Chaser (Spec Storm)

GTX

GENERAL CAR RULES

General Car Technical Rules:

1. If it isn’t covered or allowed in the rules, it is ILLEGAL.

2. Determination of car legality and rule interpretations shall be at the discretion and judgment of the Technical Director(s).
If there is any question of legality or rule interpretation, check with the Technical Director(s) PRIOR to technical inspection.

3. Any car that is hazardous or disruptive to marshals, drivers, other cars, or the track shall not be allowed to (continue to) run.

4. All parts shall be readily available parts, and must fit in the stock location without modifying the car or part.

5. Removing any material from the car or parts shall NOT be allowed except for normal wear or specifically allowed otherwise.

6. The use of glue, epoxy, or other adhesives shall NOT be allowed except where specifically allowed otherwise.

7. Any type of lubricant or oil may be used. ‘Powdered’ type lubricants are NOT recommended.

8. Tire dressing of any kind (WD-40, tire "glue", saliva, etc.) shall NOT be permitted on the car’s tires at the starting line or when the car is put on the track after lane changes. Criteria: The car shall not leave a residue when moved.

9. Any individual parts of the car may be replaced during a race except for the chassis (bare frame) and body.

10. Maximum car width shall be 1-5/16 (1.3125) inches. Car shall fit freely in tech block without forcing.
In certain ‘wide body’ classes exceeding this rule, it shall apply only to the complete, rolling, car chassis less the body.

11. Maximum front end side to side play shall be 1/32 (0.03125) inches.

12. Cars shall have four rolling tires, two pick up shoes, and one guide pin. No other parts of the car shall touch the track surface.

General Car Body rules:

1. All cars shall be equipped with a body which shall be a scale representation of an actual 1:1 car.

2. The body shall cover the chassis when viewed from above, except for legal openings (windows, vents, scoops, etc.).

3. Wheel openings or wing side tabs may be slightly radiused or opened for tire clearance.

4. The body shall be painted except for representations of windows and legal openings, which may be unpainted.

5. Injection molded or cast ‘hard’ bodies may be repainted, including light stripping and sanding to do so.

6. Front wheel openings of vacuum-formed, full fendered bodies shall be cut out or left unpainted.

7. Bearing in mind that the racing events are intended for a "family oriented" setting, profane, obscene, or otherwise offensive pictures, depictions, symbols, wording, or other graphics on the car shall NOT be allowed.

TJET CAR CLASS RULES

The Tjet car classes are based upon the original Aurora Thunderjet chassis, ‘pancake’ style armatures, and (replacement) parts.

TJet Box Stock Class

Body rules:

1. The body must be a copy of a 1:1 car and/or concept car.

2. Bodies must be manufactured by either the process of casting or injection molding and be made from resin or plastic. No feather light resin allowed.

3. Bodies with cast-in handling pans or exaggerated details (such as unrealistic or inappropriate hood scoops, oversized windows, side pipes, sloped sides, or snow plow noses) are not allowed.

4. Bodies must be originally manufactured with the intention of being mounted with the use of 2 screws via 2 body mounting posts on an Aurora Model Motoring (Vibrator, Thunderjet, Wild Ones, Tough Ones, and Xlerators), Bachmann, Faller, Model Motoring Thunderplus, Marx, Eldon or Tyco S series HO chassis.

5. No Indy, Formula 1 or Formula style open wheel bodies allowed.

6. No ballast or fillers other than color pigment allowed.

7. Maximum overall body width is 1.200".

8. The maximum thickness of the sides of the body (including fender flares and running boards) is .125".

9. With the body mounted to the chassis and viewed from above, the body must cover the chassis except through windows and vents. Unrealistic or overly large windows and vents are not allowed.

10. With the body mounted to the chassis and viewed from the side, the top rear edge of the gear plate (minus rail) cannot be above the body profile (see diagram below).

11. The body must be fitted with the manufacturer's original or exact replica bumpers, heads, rollover bars, etc. in their stock locations.

12. Cracked or broken body mounting posts may be repaired or replaced with the use of glue or a plastic sleeve around the original post or a plastic tube in place of the broken post.

13. Other than the plastic post reinforcements stated in body rule #12, no additional weight can be added to the body.

14. The body may be lowered and lightened by removing material through the process of grinding or scraping as long as body rule #10 is not violated. The body cannot be heated or reshaped from its original casting.

15. Bodies that have a separate roof and/or windshield and have molded-in interiors may have the interior portion completely removed.

16. Front and rear wheel wells may be opened up for tire clearance. This opening may be no larger than 1/8" around entire wheel well.

17. Wheel wells must not be modified in such a way as to allow the use of a wheelbase not originally intended by the body manufacturer.

18. Any body mounting screw may be used. Non-magnetic screws are recommended so a passing car will not pick up a loose screw, thus causing damage to the car and/or track.

19. Both front and rear screws must be used and must secure the body to the chassis at all times.

20. The windshield must be plastic or resin and must fill the window frame. Tape windshields not allowed. Side and/or rear windows may be removed.

Chassis rules:

1. Only original Aurora Thunderjet chassis with non-plated copper electrical components are allowed. Brush springs may be bent to alter brush tension. Pickup shoe hanger plates may be slightly bent.

2. The rolling chassis' axle and armature holes may be slightly opened up for clearance. The front truck axle hole cannot be used.

3. The rolling chassis assembly must not be fitted with bushings.

4. The chassis may be trimmed slightly (no more than .010") to allow for crown gear tooth clearance.

5. Any original Aurora T-jet two-lamination gray pole armature with original commutator and original unmodified windings may be used. The armature may be balanced and/or trued.

6. Each armature pole is to be measured across two separate commutator segments at the solder lugs. All measurements are to be taken at the current available room (ambient) air temperature. The warming of either the commutator or the armature is not allowed before or during measuring. The combined total ohm reading of all three armature poles must equal or exceed 48 ohms.

7. Any original Aurora Thunderjet magnets except Tuff Ones may be used. The distance between the magnets must be a minimum of .700"; no exaggerated sanding is allowed to close the arm gap.

8. Magnet shims may be used and must be non-ferrous. No shims are allowed under or on top of magnets.

9. Any flat top and bottom carbon/copper motor brushes are allowed. Brushes may be scored with one score line or an "X"; no exaggerated deep cuts or crevices allowed.

10. Any stock or commercially available stock replacement 14-tooth brass armature pinion gears are allowed.

11. Any stock or commercially available stock replacement 24-tooth brass idler and driven gears are allowed.

12. Any stock or commercially available stock replacement 9-tooth brass pinion gears allowed.

13. Any stock or commercially available stock replacement 15-tooth crown gears are allowed. The crown gear boss may be trimmed or have a spacer added to adjust for proper gear mesh.

14. Only original Aurora drive gear shaft may be used. The shaft may not be trimmed, cut, or shortened.

15. Gear tooth friction surfaces may be deburred by polishing, filing, or sanding.

16. Gears may not be chamfered, lightened, or relieved.

17. Any wheel and axle combination is permitted providing the chassis is centered between the wheels and the assembly does not exceed 1.000 inches in width. Front tires cannot be smaller than 0.300 inches in diameter. Rear tires must be stock width T-jet rubber or slip-on silicone.

18. Front and rear axle shim washers or spacers are allowed. Front axle shim washers or spacers must be on the outside of the frame rails.

19. Any non-plated stock or stock replacement pickup shoe may be used. These shoes must have a factory formed step, and the step must be unaltered except to allow flat pickup shoe contact with the track rail. Replacement shoes may be American Line, BSRT #504, or Slottech.

20. Bend 1 of the pickup shoe (below the hanger slot) may not be altered in any way. The step in the pickup shoe must remain intact and be unaltered. Only the first bend in the step (bend 2) may be changed slightly for proper shoe-to-rail contact. No flattening of the step allowed. The area between bend 1 and 2 may flattened for better rail contact. The vertical slotted portion of the shoe above bend 1 may be bent to limit travel. The rear hook portion of the shoe may be bent to limit travel and tension. See diagram below.

21. The pickup shoe spring may be cut, stretched, shimmed, or compressed.

22. Any amount of the vertical gear plate rails above the upper horizontal plane may be removed. No amount of material may be removed from the gear plate at or below the upper horizontal plane. The serial/patent numbers and letters must also remain intact.

23. Guide pins must be plastic and must be of a design essentially similar to the original Aurora black plastic front guide pins. The guide pin may be trimmed or bent. Countersinking the guide pin screw hole is allowed.

24. Glue may be used on the chassis only for the purposes of attaching the gears, guide pin, or axles. Solder may be used to attach gears to shafts.

TJet Stock Class

All rules for Tjet Box Stock Class apply with the following changes/additions:

1. Only original Aurora or Auto World (aka Round2, aka Johnny Lightning) magnets shall be used.
Auto World magnets may be sanded to fit the chassis.

2. The chassis assembly shall not exceed 1.085 inches in width.

TJet Super Stock Class (aka “FrayJet”)

All rules for Tjet Stock Class apply with the following changes/additions:

1. Any front/rear tire, wheel and axle combination may be used. Maximum lateral movement in the front wheel assembly shall be 1/32 ( 0.03125) inches.

2. The complete car must weigh at or between 20.0 grams and 24.0 grams.

3. The complete car must freely pass through a standard 1-5/16 (1.3125) inch tech block.

TJet Slip-on Super Stock Class

All rules for Tjet Super Stock Class apply with the following changes/additions:

1. Slip-on rear tires (such as foam, rubber, or silicone, etc.) only shall be used and may not be coated.
Tires may be sanded or ground to true and/or resize, and may be chamfered and/or radiused.

TJet Unlimited Class

The following restrictions apply:

1. The complete car must freely pass through a standard 1-5/16 (1.3125) inch tech block.

2. Car must have a body (no restrictions).

3. Car must use an Aurora Thunderjet chassis and gear plate.

4. Chassis must use a pancake (Thunderjet type) armature.

5. Chassis may have motor magnets only; no additional magnets allowed.

1/64TH SCALE CAR CLASSES

Ceramic XT/MT

This class is based upon Auto World X-Traction, and Aurora MagnaTraction cars and (aftermarket) parts.

1. All General Car Rules apply unless otherwise specified.

2. BODY shall be injection molded plastic type, produced by the original or an aftermarket manufacturer for the chassis.
All original or reproduction components (windows, bumpers, wings, etc.) shall be in place.

3. CHASSIS (frame, gear plate, and gear clamp) shall be stock or stock replacement Aurora MagnaTraction or Auto World X-Traction. Chassis modifications allowed:

a. Any amount of the vertical gear plate rails above the upper horizontal plane may be removed.

b. The chassis may be trimmed slightly (no more than .010") to allow for crown gear tooth clearance.

c. Chassis guide pin slot or location may be lightly shaved and/or enlarged for guide pin flange fit.

d. Lightly debur, chamfer, and/or ream axle holes, armature holes, body mounts, and to remove excess flashing.
NO other addition or removal of material, cutting, drilling, or other modifications allowed except normal wear.

e. Bearings, bushings, added weights, or handling pans shall not be allowed.

f. Drill and glue in up to four (4) body mounts for vacuum-formed bodies (if vacuum-formed bodies allowed).

4. GEARS - Armature pinion, idler gear and driven gear shall be stock or stock replacement.

a. Gears may be lapped and polished, and soldered or glued to their respective shafts.

b. Gears shall not be beveled, drilled, or lightened in any form.

5. GUIDE PIN may be any readily available, installed in stock location, and may be glued in.

6. MAGNETS shall be stock MagnaTraction or X-Traction as originally manufactured.

a. Sanding allowed only to improve fit; no other cutting, grooving, or exaggerated sanding allowed.

b. Non-magnetic shims may be used behind the magnets. No shims are allowed under or on top of magnets.

c. The distance (“air gap”) between the magnets shall be a minimum of 0.700".

7. ARMATURE shall be stock or stock replacement, measuring 14.5 ohms minimum each pole.
Balancing, truing stacks, rewinding, dewinding, or other modifications shall not be allowed.

8. ELECTRICAL parts may be any readily available springs, pick up shoes, and commutator brushes.
Cutting, compressing, stretching, bending, filing, etc., for fit, tension, alignment, and/or clearance allowed.

9. FRONT END may be any readily available axle, spacers, wheels, wheel weights, retainers, and tires. No ball bearings or bushings.

10. REAR END may be any readily available axle, crown gear, spacer(s), press on wheels, and slip on tires.
Crown gear and wheels may be glued on to prevent slippage.