Ohio Challenge Cup
Official Rulebook 2017-2018

Section 1 – General Rules

The Ohio Challenge Cup is a traveling series, founded with the goal of providing Flexi racers a venue for fair, cost-contained, and fun racing at a variety of raceways within Ohio and its neighboring states.

Series Function: The Ohio Challenge Cup exists to schedule races, maintain a concise rulebook, promote Stamped Steel or “Flexi” racing, and present awards to recognize the accomplishments of its racers
Board of Directors: To ensure the effectiveness of the OCC, three Board of Directors positions must be filled.
Series Director: The Series Director is the series ultimate arbiter, acting as liaison to both Track Owners and Manufacturers, arranging the series schedule and acting to resolve race day conflicts in breach of the series Code of Conduct. 2017-18 Series Director, Justin Porter
Competition Director: The Competition Director is the series technical adviser, responsible for checking all cars at Tech as well as serving as the traveling Race Director for the series, to ensure consistency in all races. The Competition Director also reviews all submitted components for future approval.
Treasurer: The Series Treasurer collects all entry fees upon race day, ensuring both Track Owner and Series receive their accurate amounts as well as negotiates purchases for the Ohio Challenge Cup including but not limited to plaques, trophies, and the equipment for the Season Finale Enduro

Race Day Procedure: The Ohio Challenge Cup sanctions races at participating tracks with the intent of offering its competitors a fair and consistent program. To this end, these procedures are to be followed at each event on the calendar.
Practice: The day will open with open practice from doors-open at 8:00am until the announced “Tech” time. Except in unusual circumstances, this should be no later than 10:00am.
Entry Fees: An entry fee of $7 per class will be collected at the time of tech by the Treasurer, as well as a $5 Practice and $5 Lunch fee. $2 of each entry fee is kept by the Ohio Challenge Cup for administrative use with the remainder belonging to the participating raceway.
Tech: The Tech process will be performed by the Competition Director for ALL divisions at the close of practice using the Ohio Challenge Cup designated Tech Tools. In the event of a dispute, the Series Director will review the measurement with a second copy of the same tool.
Tech Sheets: Tech sheets will be supplied by the Treasurer for all three divisions with corresponding information for each division's car. It is expected that they be filled out to the best of the racer's ability for promotional and rule-making purposes. Sheets with required fields (Name, Home Raceway, Body, Chassis, Gearing) not completed will be considered a tech failure and car and sheet will be returned to the participating racer to be completed.
Order of Events: The Race Day will begin when the last car is passed through tech, at which point the first group of GT1-B racers will be grouped. The racing will then proceed as follows with the lowest seeded main starting first.
- Racers Meeting
- GT1 B
- GT1 A
- Lunch/Group 10 and GTP Qualifying
- Group 10
Division of Racers: In the interest of fair and clean racing, in the event of a field of 12 racers or fewer in a division the race format will be a Round Robin. In the event of 13 or more racers, the race format will be Split Mains who will be scored collectively.

Qualifying: New for 2017-18, and in an effort to create more balanced racing and to bring the Ohio Challenge Cup in line with other touring series, Group 10 and GTP will qualify to set their groups.
Qualifying Time: Each racer's qualifying attempt will be 30 seconds, from which their fastest lap will be counted.
Qualifying Order: Order of qualifying will be set by order of tech.
Qualifying Marshals: Qualifying will be marshalled first by the LAST FIVE racers to pass through tech. As racers qualify, they will take the place of a marshal currently at the track. Failure to marshal qualifying will result in a suspension of the racer's time resulting in receiving the lowest main seed
Lane Choice: After mains are set, lane choice will start with the highest seeded racer in that main and continue from there until all racers have their lane placed. GT1 lane assignments will remain At Random in both A and B.

Race Format: Ohio Challenge Cup races are structured to allow for tight but friendly racing on a variety of tracks with an emphasis on fun and a brief as possible racing day.
Race Length: Ohio Challenge Cup races will consist of eight (8) heats with each heat being two (2) minutes in length
Starting Line: Cars will be distributed to their racers by the Series Director to be taken to the Raceway designated starting line, where they will be lined up with their front bumpers on the line.
End of Race: When power goes off at the end of the final heat, the Series Director or Treasurer will collect the cars from the track in the order requested by the Competition Director who will note finishing panel number. The recording Board member will remove lane stickers and INITIAL THEM with DIVISION and RACER's INITIALS to use as finishing markers in the event of a tie at panels.
Impound: All cars are impounded at tech until the conclusion of their division's races.
Podium Cars: The Top Three cars in a given division may be subject to a post race tech at the discretion of the Competition Director in co-ordination with the Raceway Owner. The Top Three cars and racers will also be photographed for promotional and celebratory purposes.

Racer Conduct: To ensure a fair and friendly atmosphere for all participants, racers should consider themselves not only competitors but also ambassadors for their home tracks and the sport as a whole. To this end, the series asks and enforces a racer Code of Conduct.
Marshaling: All racers are expected to marshal the divisions in which they participate. At the beginning of each race, the Competition Director will announce marshaling assignments which must be filled.
Track Calls: Track Calls are to be made by Turn Marshals or the Competition Director for the following situations.
- Car out of reach
- Car on floor
- Three cars for one marshal: Two Cars Are Not A Track Call Scenario
- Damaged Car which is To Be Returned to Its Racer at which point the race will continue
Rider: Racers, Marshals, and the Competition Director are all at their discretion to announce a Rider.
Missed Laps: A car that has traveled past the lap counter without counting will have its lap added through the lap counting software without losing distance covered in the event of the off. In the event of a recurring lost lap, a track call will be called to determine if track or racer's car is at fault. In the case of the track being at fault, repairs will be made. In the case of a racer's car being at fault, the race will continue while the racer makes needed repairs.
Track Software Failure: In the event of a software failure during a Main, the Main will be re-started at Heat One. Raceways are expected to have all Software and Wiring in functioning order. Recurring issues (more than one software failure in one main) will result in a drop being issued for the affected race.
Verbal Conduct: The Ohio Challenge Cup will not tolerate abusive or profane language directed at fellow competitors, turn marshals, raceways, or the series officials.
Unsportsmanlike Conduct: On track conduct should reflect fair and respectful behavior. Knowingly driving with the intent to damage track or fellow racer's property will not be tolerated.
Violations: In the event of a Code of Conduct Violation, a Series Official has five grades of penalty to be levied upon the participant in question.
1St – Verbal Warning
2nd – Ten Lap Penalty
3rd – Dismissal from Race without Points or Refund
4th – Dismissal from Event without Points or Refund
5th – Dismissal from the Ohio Challenge Cup
By Entering an Ohio Challenge Cup Event, all participants agree to this Code of Conduct.

These are the complete official Ohio Challenge Cup OCC Rules that apply to all OCC Classes. In the case of a discrepancy between these General Rules and an individual Class Spec Sheet, or any other information, the General Rules apply over all class specific rules. In the event of a contradiction of rules, notify the OCC Director, presently Justin Porter and/or the OCC Competition Director, presently Matthew Porter for an immediate ruling. It will then be clarified prior to the next scheduled event.

Objective of the Series Rulebook: To Maintain a set of rules for all Racers to follow which is equal for all racers, as well as provide a viable racing platform for manufacturers and raceways alike, focused on Cost-Containment, Fairness, and Stability.

Competition Director Ruling: Competition Director's ruling on any matter applies over these or any other Rules. The Competition Director may allow, at his sole discretion, a car to race one grace event, after notifying the Member of the needed change.

Commercial Availability: All products requiring series approval (chassis, motors, bodies) used in the OCC Series must be available from EITHER 1 Major Wholesaler (ERI, Eagle, REH) OR through Manufacturer Direct Sale TO RACEWAYS at the start of the season. No component without WHOLESALE availability will be considered for future legality.

Controllers: No controller may have power from batteries, or any source other than the track. Controllers may be home-made, provided that they meet the requirements of the individual Class, as stated in the Rules for that Class.

Bodies: Specific bodies are approved for each OCC Class. These are published on the Rules, and in individual Class Spec Sheets for each specific Class.
New bodies may be submitted for approval for the following year’s season.
No air control of any type may be added to any body.
Diaplanes or “Splitters” molded into the body may be retained or removed
Body must completely cover chassis when viewed from directly above
Body must be painted a minimum of One (1) opaque color
Body must have windshield and windows clear where applicable; rear windshields may be painted over where applicable
Body must have Three (3) numbers a minimum of one half-inch (0.5”) tall,
Body must have One (1) sponsor a minimum of one quarter-inch (0.25”) tall
Paint Scheme and/or Sponsor may not be of an obscene or profane nature, as per ruling of Series Director AND Participating Track Owner

Driver Figures: all bodies must have a painted and detailed, using paint and/or markers, 1/24th scale 3-D driver figure, with a head w/helmet, arms, shoulders, and a steering wheel in the normal position in the car. Driver figures molded into body must be painted, and detailed using paint and/or markers. At least 2 colors must be used. No paper drivers in any Class. Driver figure and interior must block view of the chassis when viewed from above.

Component Submission: Component Submission for consideration will open June 1st, 2018. All submissions are to be made to the Competition Director for testing and approval. Submission will close June 30th, 2018 with final approval to come with the publication of the 2018-19 Rulebook on August 1st, 2018.
Components are to first be considered upon dimensional requirements as per the General and Class Specific Rules.
Components are to then be tested to determine whether or not they present an inherently insurmountable advantage over existing equipment. An insurmountable advantage is determined at a greater than 0.2 second advantage over class baseline components at both a Long (>110') and Short (<110') track.
Baseline Components are outlined in Class Specific Rules

Chassis Rules

• 8.1 Chassis permitted (all Classes):
Champion Turbo Flex (#CHA420)
JK Products Cheetah 7 (#JK2057S)
JK Products Cheetah 11 (#JKP250112C, #JKP25011C, #JKP25011D)
JK Products Cheetah 21 (#JKP25021, #JKP25021D)
JK Products Cheetah X25 (#JKPX25)
Mossetti Patriot Striker (#MR1002, #MR1006, #MR1006R)
Mossetti Patriot Trio (#MR1003, #MR1008)
Mossetti Defender (#MR2006)
Mossetti Defender Trio (#MR2003)
Parma Flexi (#PAR588)
Parma Flexi5 (#PAR605)
ProSlot Speed FX (#PSL5000, #PSL5001)

• 8.1.1 The following chassis may only be used in Group 10 LMP and GTP
JK Products Cheetah Aeolos (#JKPC43)
Mossetti Defender (#MR2002, #MR2007)
Mossetti Defender Trio (#MR2008, #MR2009)

• 8.1.2 Chassis Components permitted (all classes)

Turboflex center section (#CHA418)
- Turboflex outer pan (#CHA419)
- Turboflex outer pan, aluminum (#CHA419A)

JK Products

JK Center Section .025” (#JKP250132C)
JK Cheetah 11 C-can Center Section (#JKP25013C)
JK Cheetah 21 Center Section (#JKP25022)
JK Cheetah 21 D-can Center Section (#JKP25022D)
JK X25 0.9mm Center Section (#JKPX25C)
JK Cheetah pans .030” (#JKP25012)
JK Cheetah pans .025” (#JKP250122)
JK Cheetah 21 pan .035” (#JKP25023)
JK Cheetah 11 one piece pan (#JKPX24P)
JK Cheetah 11 one piece aluminum (#JKPX24PA)
JK X25 0.9mm pan (#JKPX25P)
JK Cheetah 7 aluminum pans (#JK25047AL)
JK Cheetah 7 pans (# JK25047)
JK Cheetah 7 center section (#JK2533)


Mossetti Patriot Striker Center Section (#MR1012)
Mossetti Patriot Trio Center Section (#MR1013)
Mossetti Patriot Defender Center Section (#MR2012)
Mossetti Striker steel pan (#MR1022)
Mossetti Trio steel pans (#MR1023)
Mossetti Striker aluminum pan (#MR1024)
Mossetti Striker red anodized pan (#MR1024R)


Flexi 1 center section (#PAR588B)
Flexi 1 outer pan, wide (#PAR588A)

Chassis Components Permitted in Group 10 and GTP ONLY

JK Products

Cheetah Aeolos center section (#JKPC26C)
Cheetah Aeolos center section, stiffer (#JKPC26T)
Cheetah Aeolos outer pan (#JKPC26P)
Cheetah Aeolos outer pan, aluminum (#JKPC26PA)


Patriot Defender steel pan (#MR2022)
Patriot Defender steel ultralight pan (#MR2024)
Patriot Trio aluminum pans (#MR2025)
Patriot Trio steel ultralight pans (#MR2026)

• 8.1.3 You may not "mix" brands of chassis parts. "Chassis parts" are defined as the center section and pan(s).

• 8.2 Clearance:

• 8.2.1 Rear clearance is checked as follows: If the tech plate (or other gage) placed flat under the chassis at the rear axle, MOVES the car, it is too low, and must be reset and re- presented for Tech before racing. This applies under the gear as well as the rear of the chassis.

• 8.2.2 In the event of an in-race tech, car must have a minimum .050" clearance under the rear of the chassis, AND a minimum rear tire diameter of .750.

• 8.2.3 Front clearance: All Cars/Chassis must clear by .030 between the tech block/ track surface and bottom of chassis/car. Car will be checked with braid FLAT and car sitting on tech block, with guide flag sitting in un-recessed slot. In addition, any car that the Tech Director feels might damage the track surface will not be allowed to race, or will be "black flagged" during the race until repairs are made and approved.

• 8.2.4 Maximum tire Diameter for GT1 is .800 and Minimum tire Diameter for GT1 is .750, all other classes are open. This is a fixed gear ratio class and not to be played with by tire diameter.

• 8.2.5 Width: Maximum Width is to be 83mm at the chassis pans, measured at the center of the pans. The 83mm width maximum also applies at the outer edges of the rear tires

• 8.3 Chassis modifications: A " Modification" is defined an any change or addition requiring cutting, grinding, gluing, fastening using screws, or soldering, or the addition of any component other than as specifically permitted in the Rules.

• 8.3.1 No cutting, bracing or grinding of the chassis is permitted, except as specifically allowed here.

• 8.3.2 May file or grind motor mount for better mesh, but must retain motor mount.

• 8.3.3 May grind off plating only where/when soldering is intended.

• 8.3.4 May add floating or fixed pin tubes in all Classes.

• 8.3.5 May solder front axle at uprights, but front wheels must rotate on their axle.

• 8.3.6 May use "light" pans, of aluminum or steel from the same manufacturer as the center pan; must assemble with no chassis modification to be legal.

• 8.3.7 May tape chassis, or tape or solder lead weight to chassis to affect handling.

• 8.3.8 Bracing:

• May add one "c" shaped (max. .062"diameter); piano wire rear chassis upright brace, or add the Slick 7 EDM Chassis Upright Brace or may add a max. 1" long (max. .062") piano wire motor brace. If using a motor brace, motor must be soldered to the brace. Not more than 1 brace (manufacturer supplied or racer fabricated), may be used.

• The front axle may not be soldered to the center of the chassis as a brace.


• 8.4 NO Bearings in Chassis: oilite or bronze bushings in the rear axle holes only.

• 8.5 Any other chassis modification is illegal.

9.0 Replacing parts during a race: cars must finish with the original chassis parts and body, this includes center and side pans. Any other part may be replaced with another part which follows the OCC Rules for the Class, during a race. ie guide flags, axle bushings, body clips and/or pins. Cars which have had major components replaced during the course of the race (motor, guide, tires) will be subject to post-race tech at the discretion of the Competition Director.

OCC GT-1 (A for experienced, B for Beginners)

- Purpose: OCC GT-1 is a Class designed to contain the costs and performance of flexi-type slot cars, allowing a division oriented around the performance of the typical starter set slot car, using the JK Retro Hawk C21 (#JKP204176) as a performance baseline for the class.

– GT1 Division Separation: GT1 racers are to be separated into a GT1 A and GT1 B group, raced, scored, and awarded season points separately.
- GT1 B is to be comprised of novice and/or casual racers, grouped based upon prior performance, amount of experience, and where data is lacking, at the recommendation of their Home Track Owner.
- GT1 A is to be comprised of veteran racers and/or racers of note within the hobby, grouped based upon prior performance within the Ohio Challenge Cup, notable performance within the past 3 years in National or Regional championships, Premier Events, and where data is lacking, the recommendation of their Home Track Owner
- Within the Ohio Challenge Cup, there are three methods that ensure a move-up from GT1 B to GT1 A, those being to win the GT1 B championship, to win an OCC Group 10 event, and to win an OCC GTP event. The move from GT1 B to GT1 A will occur at the first event of the following season.

3.0 Controllers
Any electronic or resistor controller allowed as long as it does not add power. All cars must be powered by track power only.

Chassis: see General Technical Rules.
4.1 – Front Wheels Required, Two Piece (either plastic or metal with O Ring “tire”), minimum .600” diameter
4.2 – Front Wheels must be oriented PERPENDICULAR to racing surface
4.3 – Front Wheels must be connected by metal front axle, minimum diameter .040”
4.4 – Axle may be soldered to front axle uprights
4.5 – Axle may be either straight OR arranged in “drop” axle form
4.6 - “Drop” front axles may only be soldered at uprights

5.0 Gearing:
48 Pitch: 8 tooth pinion/ 29 tooth spur
64 Pitch: 10 tooth pinion/ 36 tooth spur
72 or 80 pitch gearing not permitted
Solid Steel Axles Only, only allowed 1/8” or 3/32”

6.0 Body Rules
• 6.1 May run any body style from approved list. *
• 6.2 Driver figures: see General Technical Rules.
• 6.3 Must use an interior and detailed driver (similar to Parma 808); windows must be left clear.
• 6.4 Decoration: See General Technical Rules.
• 6.5 Must retain a min. 1mm. (.039") "vertical" front bumper. “Splitter” area on OS-294, OS-285, JK 7112, RF-SC34C, and RFSC99C is NOT measured vertical bumper.
• 6.6 Rear must retain 1/16" "bumper" below wing.
• 6.7 Max. rear wing height 1-5/8", measured with chassis flat upon tech block
• 6.8 Approved OCC GT-1 Bodies- Updated as new bodies are released suitable for Class.


Mercedes GT1 (#1044, #1044b)
Zonda GT1 (#1019, 1019b)

JK Products

Audi R8C (#JKP7182A, #JKP7182B)
Bentley (#JKP7197A, #JKP7197B)
Bentley '03 (#JKP7207A, #JKP7207B)
Mercedes CLR (#JKP7183A, #JKP7183B)
Toyota GT1 (#JKP7176A, #JKP7176B)
Porsche GT1 (#JKP7178A, #JKP7178B)
Mazda Dyson (#JKP7215A, #JKP7215B
Peugeot 908 (#JKP7213A, #JKP7213B)


Mercedes (#OS-088)
Peugeot 908 (#OS-294)
Audi R8C (#OS-285)
Bentley EXP (#OS-286)
Porsche EVO (#OS-287)

Red Fox

Audi Coupe (#RF-SC34C)
Bentley (#RF-SC26C, #RF-SC26C5)
Porsche (#RF-SC28C)
Peugeot 908 (#RF-SC99C)

7.0 Motors - * JK Retro Hawk is the only motor used in this class
Motors may not be tampered with (ie. bending brush holders, squeezing of can to move magnets closer to the armature, soldering of bushings, etc.).

1.0 Purpose: OCC LMP is a Class designed to provide racers with an easy entry into motor-building and blueprinting while maintaining a "sports car" body.

2.0 General Rules apply.

3.0 Gearing: Any Pitch Gears, 3/32 or 1/8 axles, NO hollow axles.

4.0 Controllers: any

5.0 Body Rules
• 5.1 May run any body from the approved list.
• 5.2 Car must have full interior- NO card stock interiors, or paper drivers are permitted.
• 5.3 Driver figures must comply with General Rules.
• 5.4 Interior/driver must block view of chassis.
• 5.5 Decoration: See General Technical Rules.
• 5.6 Must retain a min. .037 (1.0 mm.) "vertical" front bumper.
• 5.7 May retain diaplane on bodies w/ diaplane molded in but may NOT add a diaplane that protrudes from the front of the car.
• 5.8 Rear of the body: a minimum 1/16" rear "bumper"- must retained, measured down from the top of the molded-in spoiler or lip of the body.
• 5.9 Max. rear wing height 1-5/8" measured from chassis flat on the tech block
• 5.10 Approved Bodies- OCC LMP Group 10 Class: Updated as new bodies are released
suitable for Class

JK Products

BMW LMP (#JKP7184A, #JKP7184B)
Cadillac (#JKP7185A, #JKP7185B)
Lola Judd (#JKP7187A, #JKP7187B)
Audi R8 Open (#JKP7192A, #JKP7192B)
Reynard 2KQ (#JKP7193A, #JKP7193B)
Chrysler LMP (#JKP7194A, #JKP7194B)
MG Lola (#JKP7198A, #JKP7198B)
Dome (#JKP7199A, #JKP7199B)
Ascari (#JKP7200A, #JKP7200B)
Lister Storm (#JKP7202A, #JKP7202B)
Porsche RS Spyder (#JKP7203A, #JKP7203A)
Lola BO5 (#JKP7204A, #JKP7204B)
Mazda Courage (#JKP7205A, #JKP7205B)
Audi R10 (#JKP7206A, #JKP7206B)
Lola LMP (#JKP7214A, JKP7214B)
Lola w/rib (#JKP7216A, #JKP7216B)


Dome LMP (#PAR1048UA, #PAR1048UB)
MG (#PAR1083A)


BMW (#OS-065)
Audi R10 (#OS-291)
Audi R15 (#OS-295)
Cadillac (#OS-289)
Lola (#OS-290)
Acura (#OS-293)
Audi R18 (#OS-296)

Red Fox

Lola C (#RFSC267C)
Acura (#RFSC40C)
Audi R10 (#RFSC33C)
Caddy (#RFSC32C)
Audi R18 (#RFSC100C)
Nissan (#RFSC10C2)

6.0 OCC LMP Group 10 Motor Rules (Balanced 16D).
• 6.1 Commercially Available Complete motor- 16D "balanced"(Excluding Outlaw/Short Stack Short Wind motors, see 6.3.4) w/ "American" or OEM arms, and approved cans and endbells.
• 6.2 Commercially Available 16D Setups: A "setup" is defined as a motor, less the armature, including: can, magnets, endbell, oilite bushings, and brush hoods. Inside can dimensions: .600H. X .875W. X .950L.
o 6.2.1 Airgap to be .575 or larger.
• 6.3 Approved 16D Armatures: ANY factory- tagged "16D" armature.
o 6.3.1 All armatures other than stock "Chinese" must be tagged: "16D"- if tags are lost, or un-readable in the opinion of the Tech Inspector, the motor may not be raced.
o 6.3.2 Any OEM ("Chinese") armature may be used. (may be untagged)
o 6.3.3 Armatures may be balanced and commutators trued.
o 6.3.4 Armature dimension: .513 min. diameter excl. coating; .600 min. stack length. 70 turns of 30 GA wire (.0099- .0101" excl. insulating varnish). No split stack or lamination armatures.
• 6.4 Motor Modifications:
o 6.4.1 May not modify can except to solder in bushing/bearing and straighten to original (USRA 16D) specs.
o 6.4.2 Can must be "full" (no strap cans) and may have the following cutouts only: hole top and bottom, axle notches on front and/or back.
o 6.4.3 May add can screws, and spacers to limit end-play.

All OCC Chassis rules apply to this class. { See Technical rules }
Bodies are high-downforce.
Chassis are the same as the other OCC Classes, so skills learned in GT-1, and LMP carry over to GTP.
2.0 General Rules apply.
3.0 Gearing: May run any gears, 3/32 or 1/8 axles, NO hollow axles.
4.0 Controllers: any
5.0 Body:
• 5.1 May run any of the bodies from approved list.
• 5.2 Painting and decoration: See General Technical Rules.
• 5.3 Coupe (enclosed) bodies must have full interior- such as Parma GTP interior; NO card stock interiors, or paper drivers are permitted. Driver figures must be painted, and detailed using markers or paint.
• 5.4 Open bodies with molded-in driver figures must have driver detailed, using paint, or marker. Open bodies with no molded in driver must have a driver and interior such as Parma 808, painted and detailed, added. Interior/driver must block view of chassis.
• 5.5 Must retain a min. 1mm. (.039") "vertical" front bumper.
• 5.6 Rear of body may be fully cut out.
• 5.7 Max. rear wing height 1-5/8" from tech block.
• 5.8 Approved Bodies- OCC GTP Class; any approved OCC GT-1 OR LMP body, Updated as new bodies are released suitable for Class PLUS:


Porsche (#CHA281X)
Bentley (#CHA282X)


Rogue (#HSPGTR05, #HSPGTR07, #HSPGTR10)

JK Products

Ultimate 908 HD (#JKP70141A, #JKP70141B)
Peugeot Ultimate (#JKP70701A, #JKP70701B)


Bentlee USRA update (#OS-369)
Bentlee (#OS-068)
Bentlee HS (#OS-069)
Ult. Mercedes (#OS-066)
Caddy (#OS-067)
Audi GTP (#OS-342)
Acura GTP (#OS-343)


Magnum WSC (#PAR70505A, #PAR70505B)
R8R WSC (#PAR70513A, #PAR70513B)
Ultimate Intrepid (#PAR70519A, PAR70519B)
Storm WSC (#PAR70516A, #PAR70516B)
Lola HD (#PAR70524A, #PAR70524B)
Caddy (#PAR70525A, #PAR70525B)
Caddy HD (#PAR70526A, #PAR70526B)

Ralph Thorne Racing


Red Fox

Scale Fighter Long (#RFSC41L)
Scale Fighter Short (#RFSC41S)
Peugeot WR (#RFSC31C)
JR Design (#RFSC44)

6.0 GTP Motor Rules:
• 6.1 Sealed Pro Slot 4002 FK motor, may change the brushes and Springs. No other modifications are allowed to the motor unless specified below.
• 6.2 Any 3 coil replacement springs and replacement brushes may be used.
• 6.3 Motor Seal must cover at least TWO endbell screws to be considered complete seal