Topic: PASER RULES
General Rules:
Date Last Modified: 1/8/2025
Bodies: All cars must be “color” painted (clear coat only is not acceptable), Include a painted/detailed vacuum formed/resin cast driver to scale, Interior cockpit tray that completely conceals the whole chassis, Numbers ½” tall located in three places, and must begin a race fully Intact/Complete, with no missing parts.
Unless otherwise specified for a specific class, bodies Must have both Stock front & rear windows installed.
Bodies may Not be stretched, have any material removed or be modified to fit a chassis, unless otherwise specified within the Body Modifications/Required section of a class.
*Note: Lane stickers to be put on windshield or a close proximity to, so Corner Marshall can see it.
Chassis: Scratch Built chassis May be constructed using any material, and are Required to have beveled pan edges to protect the track surface from any damage. The chassis must Not be visible, or protrude past the body perimeter when viewed from above, or through the Drivers Compartment. Guide flags must Not extend past beyond the foremost part of any body when viewed from above.
Gears: Spur and Crown gears will have no less than (.040”) ground clearance. This rule is written to preserve and protect the track surface, as these gears can cause severe damage.
Motors: Group “Open” Only Super 16D Setups are allowed. Note: This motor group “allows” the use of both Chinese* & American* made Armatures. American made armatures “must” retain their original identification label. No outlaw arms of any kind are allowed. Blueprinting, Ball bearings/Bushings (both ends of motor) Armature and magnet replacement are allowed. Shunted brushes, Cobalt/Neo Magnets, Magnet Shimming, Rewinding/Dewinding of armatures are Not allowed.
Motors: Group “Standard” 16D & Super 16D motors (i.e. Super 16D Parma #502, ProSlot 2001, 2003, 2101). Note: This motor group “requires” the use of stock Chinese* made Armatures only. Motor brushes/springs may be adjusted/replaced as needed. Armatures may be shimmed/coms trued/Ball Bearings are allowed. Shunted brushes/magnet shimming not allowed.
*Note:The term "Chinese arm" refers to the factory made stock armatures fitted to the "stock" motors. "American arm refers to the premium or upgrade armatures of higher quality which are generally manufactured in the U.S.A.
Motors: Group Hawk 7/FK (unserviceable motors) may be allowed in specific classes.
Tires: No Tire will be less than ¾” (.750”) in Diameter, excluding the 4.0 Flexi Class, or otherwise specified elsewhere.
Adding traction compound to your tires (ie gluing) is not allowed. Cleaning tires with solvents & softeners Are allowed however, they must be Completely Dry before placing the car on the track.
All four tires Must touch/roll on the track surface, and are Required to have Black sidewalls
Unless otherwise specified for a specific class, when viewed from above, all four tires must Not extend beyond the widest part of the wheel opening, when the chassis is at the center of lateral movement.
Front tires must Not be partially hidden by the front or rear of the stock/modified wheel well opening, (this does Not include the “top” of the wheel well opening).
Track/Venue
Track gluing/preparation will only be performed by the track owner, unless otherwise requested.
Can Am
Date Last Modified: 6/6/24
(To be used in conjunction with the General Rules)
Scale: 1/24, 1/25
Years: Open
Body Group: Only Can Am cars that actually raced in the Can Am series, using Lexan Bodies to Scale with a minimum thickness of .010”. Wheel inserts, roll bars, injection stacks, exhaust pipes and paint schemes that reflect the period are encouraged. If a full wing was used on the rear of the car, you may add one if it resembles the original in scale and proportion, but is “not” required.
Body Height, Minimum: Stock height at the factory reference cut line.
Body Modifications/Required: N/A
Interior/Required: Interior tray that includes a Resin Cast driver head/arms. (See General Rules).
Chassis: Scratch built, Production, Modified Production.
Chassis Modifications/Required: Open.
Configuration (Motor): Inline, Angle Winder, Side Winder are allowed.
Axles: 3/32”, 1/8”, Wire
Bearings/Bushings: Axle Ball Bearings, Oilite Bushings Are allowed in both front & rear.
Gears: 48, 64 pitch. Note: Gears must have a minimum of (.040”) ground clearance, See General Rules.
Ground Clearance, Minimum: Front (.047”) Rear (.055”)
Motors: “Standard” Including Hawk 7/FK (See General Rules)
Tire/Dimension: Minimum diameter Front (Any Tire Including O-Ring) (.800”) and May be coated for hardness. Minimum diameter Rear (.900”).
Tire/Wheel Maximum Track Width: Maximum track width will be determined by the selected body used. (See General Rules).
Flexi 4.0”
Date Last Modified: 6/6/24
(To be used in conjunction with the General Rules)
Scale: 1/24
Years: Open
Body Group: Eligible Bodies include the LMP, GT1 & GTS, Group C. Note: JK-RTR (Race Ready) Bodies/Chassis are also eligible, and are available for purchase from PASER.
Body Height, Minimum: N/A
Body Modifications/Required: Painted style themes. The body Must cover the rear tires however, the tires May protrude from the body side, a maximum of (.020”.) Body Must completely cover the Guide Flag/Chassis, when viewed from top/front. Front wheel wells need Not be cut open/radiused to conceal the front wheels. Rear wheel well openings Must be cut open to reveal Both the Wheel & Tire. All clear windows Must remain intact.
Interior/Required: See General Rules.
Chassis: Any 4.0” wheel based Stamped Steel chassis. Chassis must Not exceed a 4.0” wheel base
Chassis Modifications/Required: Chassis must Not exceed a 4.0” wheel base. Chassis May be modified to accommodate a 1/8” Front axle. Chassis frame May be weighted, reinforced, bent, Motor Plate slotted. Lead Wire restraints, Pin Tubes to attach body (no longer than (1.25”) May be soldered to the chassis. Note: No other cutting Grinding, Modifications or Weighted Guide Flags, are allowed.
Configuration (Motor): “Standard” See General Rules.
Axles: Front 1/16” Rear 3/32”, 1/8” allowed.
Bushings/Bearings: Oilite Bushings Only. Note: May be glued/soldered in place.
Gears: 48,64 Pitch. Note: Gears must have a minimum of (.040”) ground clearance, See General Rules.
Ground Clearance, Minimum: Front (.047”) Rear (.055”).
Motors: “Standard” Including Hawk 7/FK (See General Rules). Note: Motor May be soldered, glued, silicone in place.
Tire/Dimension: Front 1/16” axles (O-Rings mounted on wheels) Note: Replacement oversized O-Rings May be Required to prevent a chassis (RTR included) from making contact with the track surface. Oversized O-Rings are made available from the PASER club. Rear: Any tire combination May be used. Appropriate spacers may be used to achieve proper track.
Tire/Wheel Maximum Track Width: Front (3.25”) Rear (3.25”)
Flexi 4.5” NASCAR/Truck
Date Last Modified: 12/21/24
(To be used in conjunction with the General Rules)
Scale: 1/24
Years: Open
Body Group: Only Replicas of an American made NASCAR Sedan/Truck (No ASA cars).
Body Height, Minimum: (1.750”) Measured from the bottom of the chassis to the center of the roof line. Trucks (1.850”) Measured same as cars. All other body rules remain the same as cars.
Body Modifications/Required: Painted NASCAR style themes. Body Must completely cover the Guide Flag/Chassis, when viewed from top/front. Front wheel well openings Must be cut open/Radiused to reveal the Wheel Only as to allow for added body rigidity. Rear wheel well openings Must be cut open to reveal Both the Wheel & Tire. All clear windows must remain intact.
Interior/Required: See General Rules.
Chassis: Any 4.5” Wheel Based Stamped Steel Chassis.
Chassis Modifications/Required: Chassis must Not exceed a 4.5” wheelbase. Chassis May be modified to accommodate a 1/8” Front axle. Chassis frame May be weighted, reinforced, bent, Motor Plate slotted. Lead Wire restraints, Pin Tubes to attach body (no longer than (1.25”) May be soldered to the chassis. Note: No other cutting Grinding, Modifications or Weighted Guide Flags, are allowed.
Configuration (Motor): Angle winder.
Axles: Front (1/8” or 3/32”). Rear (1/8”) Only.
Bushings/Bearings: Oilites Only. May be Glued/Soldered in place
Gears: 48 Pitch Only. Note: Gears must have a minimum of (.040”) ground clearance, See General Rules.
Ground Clearance, Minimum: Front (.055) Rear (.055”) Note: Without the Guide Flag supporting the car.
Motors: “Standard” (See General Rules). Note: Motor May be soldered, glued, siliconed in place.
Tire/Dimension: Minimum Diameter Front (13/16” .8125”). Minimum width. (.300”). Minimum Diameter Rear (.750”). Note: Pro Track Daytona tires are the Required spec rear tire to be used in this class. PASER stocks & maintains an inventory of these required tires, & sells them to club members at a discounted price.
Tire/Wheel Maximum Track Width: (3.25”). Appropriate spacers May be used to achieve proper track.
NASCAR (Classic)
Date Last Modified: 6/6/24
(To be used in conjunction with the General Rules)
Scale: 1/24 Only (Revell/Monogram Kit).
Years: 1980 - 2007
Body Group: NASCAR (No Slab Side or Gen 6 Bodies)
Body Height, Minimum: (1.875”) Measured from the bottom of the chassis to the highest center point of the roof line. Bodies May be trimmed to meet the minimum required height.
Body Modifications/Required: Front & Rear wheel wells May be radiused to allow tire clearance. Stock windshield & Rear windows are Required (Side windows optional). No modifications to the front end allowed. Constructing custom Fender Flares Is allowed.
Interior/Required: See General Rules.
Chassis: Rattle Style consisting of “Two” main components (1 Center Pan (Guide tongue & Motor bracket included) and 1 each, Left & Right, Side Pan). Side Pans Must be attached together using tubing/wire etc. and Not move independently of each other, when attached to the center pan assembly. The Side Pans May move together in a side to side, front to back and up & down motion. Hinges of any kind throughout the entire chassis that allow a hinged swinging type motion are Not allowed. Side Pan assemblies May extend forward past/beyond the center pan section, and or the front axle position.
Chassis Modifications/Required: Open, Without Hinging of any kind.
Configuration (Motor): Inline Only.
Axles: Front (1/8”, 3/32”, Wire etc.) Rear (1/8”) only.
Bearings/Bushings: Oilite Bushings or ball bearings allowed, both front and rear.
Gears: 48 Pitch only. Note: Gears must have a minimum of (.040”) ground clearance, See General Rules.
Ground Clearance, Minimum: Front (.055”) Rear (.055)
Motors: “Standard” (See General Rules)
Tires/Dimension: Minimum Diameter Front 7/8” (.875”) Any Tire Including O-Ring, May be coated with polish/Super Glue. Minimum diameter Rear (.900”) May be narrowed.
Tire/Wheel Maximum Track Width: Front (3.250”) Rear (3.250).
NASCAR (Late Model)
Date Last Modified: 6/6/24
(To be used in conjunction with the General Rules)
Scale: 1/24, 1/25
Year: 1980 to present.
Body Group: Replica of an American made NASCAR Sedan Note: ASA cars are Not Eligible.
Body Height, Minimum: 1/24 scale 1-7/8” (1.875”) Measured from the bottom of the chassis to (1/2”) behind the windshield. (Air dams excluded). 1/25 scale: Excluded from this rule however, must remain at the (Factory Kit) height.
Body Modifications/Required: Bodies May be trimmed to remove part of the front spoiler and side air dams (to the stock valence height for proper track clearance).
Interior/Required: See General Rules.
Chassis: Scratch Built, Bolt Together (i.e. 2NASTE).
Chassis Modifications/Required: Open.
Configuration (Motor): Inline, Angle winder, Sidewinder.
Axles: 3/32”, 1/8”, Wire
Bushings/Bearings: Ball Bearings, Oilite Bushings Are allowed in both Front & Rear.
Gears: 48, 64 Pitch. Note: Gears must have a minimum of (.040”) ground clearance, See General Rules.
Ground Clearance, Minimum: Front (.055”) Rear (.055”)
Motors: “Standard”/ “Open”, (See General rules).
Tire/Dimension: No less than ¾” (.750) Must still meet the minimum (.055”) Ground Clearance.
Tire/Wheel Maximum Track Width: Width Will be determined by the selected body used (See General Rules).
Sports Car (Production)
Date Last Modified: 6/6/24
(To be used in conjunction with the General Rules)
Scale: 1/24, 1/25
Years: Open
Body Group: Any production sports car body. Note: Rollbars Are required in roadsters.
Body Height, Minimum: Configuration and roofline Must remain unaltered (Production Kit) height.
Body Modifications/Required: Trimming of the lower valence Is allowed for proper guide flag clearance. At least 1/16” (.062”) Must be left in place at the bottom of the air intakes. Custom windshields May be constructed using Lexan/plastics however, Will require Tech approval.
Interior/Required: (See General Rules).
Chassis: Scratch built Only.
Chassis Modifications/Required: Open
Configuration (Motor): Inline Only
Axles: 3/32", 1/8" Wire.
Bushings/Bearings: Axle Ball Bearings, Oilite Bushings Are allowed in both Front & Rea
Gears: 48, 64 Pitch. Note: Gears must have a mi.nimum of (.040”) ground clearance, See General Rules.
Ground Clearance, Minimum: Front (.055”) Rear (.055”).
Motors: “Standard”/ “Open” (See General Rules).
Tire/Dimension: No less than ¾” (.750) Must still meet the minimum (.055”) Ground Clearance.
Tire/Wheel Maximum Track Width: Front (3.25”) Rear (3.25”)
Sportsman
Date Last Modified: 6/6/24
(To be used in conjunction with the General Rules)
Scale: 1/24, 1/25
Years: 1958 - 1979
Body Group: American full/midsize make of cars Only. (Bodies Not Eligible: Pony cars, Mustang, i.e. Camaro, Cuda, Challenger, AMX, Javelin)
Body Height, Minimum: (1.800”) Measured from the bottom of the chassis to the highest center point of the roof line.
Bodies may Not be trimmed to meet the specified minimum height, and must remain at the Stock Kit Height.
Body Modifications/Required: Front & Rear wheel wells May be radiused to allow tire clearance. Windshields (see General Rules) May be replaced by a custom mesh or realistic looking screen. Note: Rear windows are not required.
Interior/Required: See General Rules.
Chassis: Rattle Style consisting of “Two” main components (1 Center Pan (Guide tongue & Motor bracket included) and 1 each, Right & Left side Pan). Side Pans Must be attached together using tubing/wire etc. and not move independently of each other, when attached to the center pan assembly. The Side Pans May move together in a side to side, front to back and up & down motion. Hinges of any kind throughout the entire chassis that allow a hinged swinging type motion are Not allowed. Side Pan assemblies may extend forward past/beyond the center pan section, and or the front axle position.
Chassis Modifications/Required: Open, Without Hinging of any kind.
Configuration (Motor): Inline Only.
Axles: Front (1/8”, 3/32”, Wire) Rear (1/8”) only.
Bearings/Bushings: Oilite Bushings or ball bearings allowed. Both front and rear.
Gears: 48 Pitch Only. Note: Gears must have a minimum of (.040”) ground clearance, See general rules.
Ground Clearance, Minimum: Front (.055”) Rear (.055)
Motors: “Standard” (See General Rules)
Tire/Dimension: Minimum Diameter Front 7/8” (.875”) Any Tire including O-Ring, May be coated with polish/Super Glue. Minimum diameter Rear (.900”) May be narrowed.
Tire/Wheel Maximum Track Width: Front (3.250”) Rear (3.250).
Trans Am
Date Last Modified: 6/6/24
(To be used in conjunction with the General Rules)
Scale: 1/24, 1/25
Years: 1965 to present.
Body Group: Only Cars raced and powered by V8 engines in the Trans Am Series (Convertibles are Not allowed).
Body Height, Minimum: Must remain unaltered (Kit Stock)
Body Modifications/Required: Wheel wells May be trimmed for tire clearance. Body posts that are used to attach the body to the kit chassis May be removed. Rear spoilers May be added with a maximum height of ¼” (.250”). Fender flares May be added to meet the maximum track width.
Interior/Required: See General Rules.
Chassis: Scholer, 2Naste, Sloting Plus SP800001, Scaleauto SC-8001C or SC-8002C. 3/32”, 1/8” Axles allowed.
Chassis Modifications/Required: “Stock Kit included” Axle Housing brackets front & rear are Required. Side Pans May be bolted to the “Rattle” plate. “L” rails May be soldered to the side pans for body mounting. A custom/scratch built front pan May be added. The “Rattle” Plate May be strengthened with piano wire & JB Weld. A hole directly under the motor “on the chassis pan” May be cut for cooling. Holes May be reamed out to allow installation of American bushings & bolts/screws. Bushings May be glued/soldered in place. Wheel base May be extended with a Custom/Scratch built system. Axle bushings & Bearings may be used in the front & rear.
Configuration (Motor): Angle winder.
Axles: 3/32”, 1/8” Axles are allowed.
Bushings/Bearings: Axle Ball Bearings, Oilite Bushings Are allowed both front & rear.
Gears: 48, 64 Pitch. Note: Gears must have a minimum of (.040”) ground clearance, See General Rules.
Ground Clearance, Minimum: Front (.055”) Rear (.055”)
Motors: “Standard” (See General Rules).
Tire/Dimension: Minimum tire diameter Front 15/16” (.9375”). Minimum tire width Front (.400”). Front tires may be coated for hardness. Minimum tire diameter Rear (.900”)
Tire/Wheel Maximum Track Width: Front (3.150”) With the addition of fender flares Only) Rear (3.250”) With the addition of fender flares Only). If fender flares are “Not” used, the body width, both front & rear will determine the maximum track width, See General Rules.
Womp (Stock)
Date Last Modified: 6/6/24
(To be used in conjunction with the General Rules)
Scale: 1/32”
Years: Open
Body Group: Eligible Bodies include: Group C, GTP, LMP, Sports Car, Can Am. Note: Clear Lexan Bodies Must be used. Note: Open Wheel F1, or sedan type bodies are not allowed.
Body Height, Minimum: N/A
Body Modifications/Required: N/A
Interior: See General Rules.
Chassis: Steel Womp Chassis Only.
Chassis Modifications/Required: Motor mount angle May be bent to improve the Pinion/Crown gear alignment. Motor Mount May be Ground/Modified to facilitate Motor Mount Screws orientation. Pin Tubes for Body mounting May be added/Soldered/Glued to the Chassis. Body Must mount solidly to the Chassis. Additional weight may Not be added to the Chassis in the way of Ballast, to improve the handling.
Configuration (Motor): Inline Only.
Axles: Front (1/8”) Rear (1/8”) (3/32”).
Bushings/Bearings: Oilite Bushings Only. Note: Oilite Bushings May be Glued/ Soldered in place.
Gears: 48 Pitch Only. Note: Gears must have a minimum of (.040”) ground clearance, See General Rules.
Ground Clearance, Minimum: Front (.047”) Rear (.047”) Note: The Crown Gear is included in the measurement.
Motors: Professor Motor PMTR1032 (Spec Motor) Only. Note: The PMTR1032 is a sealed/Not Serviceable end Bell Motor that replaces the Fox 10 Mabuchi FK Motor, and Must be used. PASER will stock and maintain an inventory of these motors for purchase. These legal motors Will carry the PASER identification mark. If you purchase a motor from another source, you Must have it inspected/approved & identified/marked as legal. It is suggested that you purchase your motor from PASER, to eliminate any confusion.
Tire/Dimension:(Front) Stock Parma O-Ring, or equivalent Must be used, and mounted on the original stock wheels. Note: Front wheels May roll independently of each other. (Rear) Any Rear tire May be used, as long as a minimum Ground Clearence of (.047”) is maintained.
Tire/Wheel Maximum Track Width: Front (2.50”) Rear (2.50”)
2NASTE NASCAR rules*:
Basic PASER rules apply.
Body: Any 1/25 - 1/24 NASCAR body from 1980-2007. No slab-sides / Gen 6 / Next Gen bodies.
Chassis 2NASTE or similar. No scratch-builts.
Axles. 3/32 or wire. Bearings allowed front and rear.
Tires: Rears: min. - 900
Fronts: min. - 7/8
Gears: 64 pitch
Motor: Standard Super 16. Chinese arms only.
* Class rules added 12/3/2024
