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[rvec]

True Scale Rules

Revised 5/26/23

 

Rules applied to all True Scale Classes

 

Only production H-Bracket chassis are allowed. The following modifications may be made to any of legal H-Bracket chassis.

 

• The front axle hanging systems of these chassis are typically weak and subject to bending. Fabrication of a custom front axle hanging system is allowed.
• The H bracket may be stiffened by using piano wire or other material. The stiffening material may be soldered or attached using an adhesive substance such as JB weld.
• Side and front pans may be added
• Axle hanger holes may be reamed to fit the American bushings/bearings.
• Bearings/bushings may be secured with super glue, other adhesives or soldered
• Bolt holes may be reamed accept American bolts
• Cooling hole may be cut under the motor
• The 4 small “bump ins” in the center section of the chassis may be removed by filing away the material between them just enough to allow for the inner part of the side pan to sit flush on the center section.
• No other chassis modifications are allowed unless shown for a specific chassis in the section below.
• Tires must be black and centered in the wheel openings
• Full interior tray with painted 3D driver figure is required
• Two numeric decals are required. Three are preferred
• Wheel inserts are optional but encouraged
• Any major body piece such as a wing, if lost due to a mishap, must be reattached prior to the next heat
• All motors must be sealed (no motor modifications are allowed). On 16D type motors, gold dust or equivalent brushes are allowed
• The guide flag must not be visible as viewed from the top (exception Cobra/Corvette Challenge class)
• Front tire width must be .4”. They may not be tapered but may be painted or hardened with super glue or nail polish to reduce rolling resistance. Front tires may not extend outside of the bodywork (although inserts may extend outside the bodywork)
• Track Clearance – Front .047”, Rear .055”

 

To date, legal chassis include the following:

• Scholer
  • SCH1102001 Pantera – Center section may not be modified
  • i55-1360 Intruder – Ears on the Center section may be narrowed to the same width as the Pantera (approximately 2 inches)
  • i55-1360 LWB Intruder - Ears on the Center section may be narrowed to the same width as the Pantera (approximately 2 inches)
  • SCH1102002 Tiger - Ears on the Center section may be narrowed to the same width as the Pantera (approximately 2 inches)

 

• Slotting Plus SP800001 Stainless Steel UNIVERSAL 1/24 Chassis
• SCALEAUTO SC-8002c Adjustable LONG Wheelbase 1/24 Chassis
• Plafit 1700 series
• 2NASTE

 

GT1 Specific Rules

 

Bodies:

Only the following bodies will be allowed:

• Nissan R390 GT-1
• Mercedes CLK GTR
• Sauber Mercedes C9
• Jaguar XJRM-8-LM
• Jaguar XJR-9 IMSA
• Jaguar XJ220 (1/24 scale)
• Charge Mazda 767B
• Porsche GT-1
• Porsche GT-1 EVO
• Nissan R 88C
• Toyota 88C
• Porsche 956
• Toyota 88C LM
• Jaguar XJR-9LM
• Toyota GT-1 TS020
• Ford Mustang GTP
• Porsche 962
• Skyline GTR
• Nismo GTR
• Impulse GTR
• NissanNSX
• Toyota 84C
• Additional bodies made by Carrera
  • Porsche 997
  • Corvette C6R
  • Ferrari 575 GT
  • Aston Martin DBR9
• Nissan R89C and R90C
• Ferrari Enzo

 

Modifications to body:

• Dashboard may be cut out
• Support may be added to the wing.
• Support may be added to the front of the car.
• Kits with closed rear wheel wells may be opened to the lines on the kit.
• Kits with wings out behind the car may be mounted on the upper rear deck.
• Side air vents that interfere with the mounting of the body may be modified or replaced with a flat piece of plastic.
• All glass in the kit must be used

 

 

Motor:

Only the Falcon 7 or Hawk 7 motors are allowed.

 

Tires:

 

• Rear tires must be at least 1.0" in diameter and must not extend beyond the bodywork
• Front tires must be at least 15/16” in diameter

 

TA2 and Historic Trans-Am

Bodies:

TA2

• Years - from 2006 to present. 1/24th. / 1/25th. Camaro, Mustang and Challenger kits. No convertibles.
• Minimum body height: 1.850". The Mustang and Challenger can be cut on the bottom of body to meet the minimum height. Camaro cannot be cut down
• Front and rear wells may be trimmed for tire clearance.
• Fender flares are required
• Front and rear glass must be used

 

 

Historic Trans Am - Trans Am Series run from 1966 – 1972.

• Classic Trans Am bodies are limited to those run in the series in the over 2.0 liter class with the following exception – Mustang fastback cars are allowed.
• Only 1/25 scale kits are allowed.
• Wheel wells may be trimmed for tire clearance
• Bodies may not be cut down but may be raised to accommodate tire clearance.
• Fender flares are required
• Front and rear glass must be used

 

Tracking:

• Rear tire track is limited to 3.25. Rear tires may not extend beyond the bodywork (excluding the insert)
• Front tire track is limited to 3.15

 

Tires:

• Front tires to be a minimum of 15/16" diameter
• Rear tires to be a minimum of 1.0"

 

Motor:

Only Deathstar and Proslot PS-2002 SpeedFX 16D balanced motor (sealed) are allowed

 

True Scale Can Am and Gran Sport

 

Bodies:

 

Can Am

Only plastic bodies allowed (no resin cars). Limited to actual race cars run in the series from 1966-1974. Tamiya slot car Can Am bodies are available and are light and relatively inexpensive. These include:

• Lotus 30
• Lotus 40
• King Cobra
• Lola T70
• Ferrari P330 P2
• McLaren Elva

Accurate Miniatures sells a plastic McLaren M8

Other models may be approved by the Track owner

 

Gran Sport

 

Gran Sport bodies are typically 60s sports cars. The goal will be to include cars that have the same wheelbase as the True Scale Can Am cars so that a single chassis may be used for either class. The following bodies will be allowed:

• Ford GT-40
• Porsche 904
• Porsche Carrera 6 (aka 906)
• Porsche 917
• Corvette Stingray
• Toyota 2000, 427 Cobra & Cobra Coupe
• Ferrari GTO, 275P, 250LM
• Corvair Corsa
• Lamborghini Miura

 

Tires:

 

• Front tires are to be a minimum of .85 inches in diameter.
• Rear tires to be a minimum of  .925 inches in diameter

 

Motor:

Only Deathstar and Proslot PS-2002 SpeedFX 16D balanced motor (sealed) are allowed

 

Track:

Rear track Can Am/Gran Sport may extend beyond bodywork and if so is limited to 3.17 inches

 

Cobra/Corvette Challenge

 

Background:

 

The Cobra/Corvette challenge (CCC) class will be based upon the KISS principle. The place to start is with the 289/427, 1/24th scale Cobra. This model has the same wheelbase as the True Scale Can Am cars. The Cobra is quite narrow but can be “stretched” to fit an unaltered True Scale Can Am Chassis. This class is meant to re-create early Cobra/Corvette racing, therefore cars will be limited to 1953-1967 model years. In order to promote “competitive diversity”, bodies with approximately the same wheelbase will be selected and “stretching and/or wheel flares will be allowed (but not required) to facilitate tracks that are equal. Again, to promote simplicity, the same chassis may be used on Can-Am, Gran Sport and Cobra/Corvette challenge cars.

 

Bodies:

 

Only plastic bodies are allowed (no resin cars). Cobras may be 1/24th scale. Corvettes may be1/24th or 1/25th scale models with the exception of the 53 Corvette for which only the 1/25th scale version is allowed. Only replicas of cars for model years 1953-1967 will be allowed.

• Bodies may be raised to facilitate wheel clearance
• Wheel openings may be enlarged to facilitate wheel clearance

 

Tires:

 

• Front tires are to be a minimum of .85 inches in diameter
• Rear tires to be a minimum of .925 inches in diameter

 

Motor:

Only Deathstar and Proslot PS-2002 SpeedFX 16D balanced motor (sealed) are allowed

 

 

Track:

• Front tires may extend beyond bodywork as viewed from above but track is limited to 2.90 inches
• Rear track may extend beyond bodywork and if so is limited to 3.17 inches

 

Miscellaneous:

• Guide flag may extend beyond the front bumper as much as a quarter inch as viewed from the top.
• Cobra windshield and windscreen are flimsy and may be replaced by a custom windscreen made from any transparent material. Some Corvette convertible windscreens are flimsy and hard to mount and may be replaced by a custom windscreen made from any transparent material.

 

Sports Car

This class includes contemporary limited production and production based closed sports cars (no convertibles or sypders are allowed). The class specifically excludes all cars included in the GT1 class (see above for GT1 list of legal cars).

Bodies:

 

• Front wheel wells may not be trimmed for tire clearance
• Rear wheel wells may be trimmed for tire clearance (This will allow many more sports cars to fit into the class without mounting the rear wheels inboard of the rear fender wells)
• Bodies may not be cut down but may be raised to accommodate tire clearance
• Front and rear glass must be used
• Maximum body width at the front and rear openings may not exceed 3.25 inches

 

 Approved bodies are as follows

• Ferrari Modena
• Ferrari Testarossa
• Ferrari F50
• Ferrari F40
• Ferrari 458
• Ferrari 430
• Audi R8
• Jaguar XJ220 (1/25 scale only)
•  Ford GT (not the Ford GT40)
• Porsche 918

 

 

Bodies not on the approved list will be considered, however, please contact the track owner prior to the build. In the interest of competitive diversity, long wheelbase cars such as the Ferrari 599 are excluded from the class. The intent is to be able to use a Tran-Am chassis for cars in the Sports Car class.

Tires and Tracking:

• Front wheel diameter shall be at least 15/16 inch
• Rear wheel diameter shall be at least 1.0 inches
• Rear or front tires may not extend outside of the bodywork (wheel inserts excluded)

Motor:

• Only Deathstar and Proslot PS-2002 SpeedFX 16D balanced motor (sealed) are allowed

 

True Scale NASCAR

 

Only 1/25 scale NASCAR bodies will be allowed, otherwise, rules for True Scale NASCAR will be the same as for True Scale Sports Car with the following exceptions:

 

• Rear wheel minimum diameter will be set at .95 inches
• Rear wheel wells may be cut for clearance.
• Rear wheels may extend beyond the body work
• Rear Track - 3.25 inches max

 

True Scale 60s GT Cars

 

This class currently includes 1/20 scale Cobra Daytona resin cars.  I will likely be expanded to include 1/20 scale Cheetah, Ferrari 250 GTO and perhaps Corvette Gran Sport.

 

Class rules will be the same as for True Scale Sports cars with the following exceptions

• Rear and front Track – 3.15 inches max
• Rear wheel diameter - .95 inched min.

 

True Scale Slammers

 

The rules for this class utilize the KISS principle (Keep it simple stupid). A body swap and a front track adjustment are needed to compete in this class

• Chassis/Motor combinations are exactly the same as our Sports Car, Trans-Am, and NASCAR classes
• Front and rear track specifications are the same as our NASCAR class (3.17 inches front and 3.25 inches rear) but both may extend beyond the bodywork
• Bodies shall be 1/25 scale NASCAR kits representing cars from 1980-2007and  cut to represent extreme modified cars
  • Body can be trimmed by removing material from the bottom sides (rocker panel area) to a minimum overall height of 1.750 inches at the roof’s highest point. The measurement for tech inspection will be taken with the body mounted on the chassis, and measured from bottom of chassis to roof’s highest point. More material may be removed from the front portion of the body than the rear, to achieve a slight rake when the body is positioned onto the chassis
  • Tops may not be chopped and roof pillars must remain intact
  • The front fascia of the body must remain intact (headlight area and grill opening), however the front air dam may be removed. The front leading edge of the air dam must be at least 1/16 of an inch tall.
  • A front push bar may be added which may require a clearance cut in the front air dam.
  • Rear wheel openings may be enlarged for tire clearance. 
  • Front wheel opens may be cut out of fender completely to allow tires to extend above fenders and hood area.  Cuts may be made into hood sides to allow for tire clearance.
  • Mesh screen will be used to replace the front clear plastic window, and the clear plastic rear window will be eliminated
  • The rear of the body may be cut off to shorten the overall length of the body and a replacement rear panel must be added when the rear of the body is cut off. The panel may include the rear spoiler.
  • Rear spoiler height must not exceed .400” (measured from the top center portion of the rear deck lid). Rear spoiler may be no wider than the body
  • Body must display numbers on each side and the roof. (Numbers shall be at least .5 inches tall
  • Interior with 3D driver shall be installed

Clubman Rules

Editor’s Note: I will allow both True Scale and OSCAR Clubman cars to compete at Electron Raceway. The rules for True Scale cars are shown below. Please refer to the OSCAR rules if you intend to field an OSCAR based car.

 

• Scale 1/24 , 1/25
• Years: Open
• Chassis: Must be production H-bracket such as 2Naste, Scholer, Scaleauto, etc.
• Bodies:
  • Any Production Sports Car Body that does not exceed 3” in width.
  • Wider production cars and/or prototypes may be used at the discretion of the track owner (please discuss your potential choice before building the car).  That being said, the following are two guidelines
    • The rear and front track must be set no greater than 3”.
    • The wheelbase must approximate four inches.
• Hardtops or if Convertible, must use convertible top.
• Rear and front tire tracks may not exceed 3” in width
• Front wheels shall not extend beyond the widest part of the front wheel wells
• Rear wheel wells may be radiused, however, tires must not extend beyond the widest part of the wheel well after trimming
• Minimum rear tire diameter .925”
• Minimum front tire diameter .85”
• Drivers: Vacuformed or resin cast
• Body height: Configuration and roofline must be production stock
• Modifications: Trimming of the lower valence is allowed for proper guide flag clearance. At least 1/16” must be left in place at the bottom of the air intakes
• Motors: Deathstar or ProSlot 16D