D3/IRRA 2011   Rod & Custom Series   Rules & Regulations

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D3/IRRA National 2011 1/24 Scale R&C Racing Series classes rules & regulations (version V3-2010-05-26)

Intent:
The intention of these rules is to provide a class of scratch-built Sports Car slot cars reflecting the cars used in the 1966 Rod & Custom racing series. This was the first pro racing series that featured all the southern California factory team racers from Russkit, Checkpoint and Cox etc battling it out for national magazine exposure and glory.

These are the cars that lit the scratch building fire for most of the retro racers today. The innocence of design, scale and simplicity and the dream they brought of one day being as good as Mike Steube, Tore Anderson, Bryan Warmack, John Cukras, Terry Schmid or Mike Morrissey.

Remember that your build must be in the spirit of the 1966 “Rod & Custom” magazine racing series. The chassis must reflect the ones shown in the race reports in the pages of the magazine, published all over the Internet.  Forget the technology you have learned in the past 43 years, R&C SC has no place for it.

This class is meant as a fun, 1966 technology based class, not a “lets see how fast we can go” “why can’t I do this, the cars will be faster” racing class.  The cars are fun to build, detail and drive.

Chassis will not use any design elements, materials or technologies that were not used in the 1966 R&C series. The governing body reserves the right to disallow any design that is not in the correct spirit and make technical changes as it is seen fit to keep the class pure.

These rules are shared with the IRRA Organization and are the first true national racing rules of the modern era.

Rod & Custom Series Sports Cars

Maximum car weight: 130 grams.

1. Chassis specifications: 

1a-  All chassis must be made using only .063 brass/bronze rod or tubing.
Allowed exceptions:
1b- A single piece of 0 .063” steel wire, formed in a U shape to brace the rear bracket.
1c- A single piece of straight 0.063” steel wire to be used inside the 3 piece drop arm hinge.
1d- Rear axle bearing surface: 5/32” brass tubing only – no bushings.
1e- Rear motor bracket: one-piece, 90-degree 3-sided brass of 0.047” thickness. 
1f-  Motor may not be closer than 0.550" to the center of the rear axle. Drop arm must only be made from brass tubing or rod and must use a piece of 7/32” brass tubing to hold the guide or the machined brass guide holders/bushing, and be connected by 3 pieces of 3/32” tubing and be no wider than 0.075”.
1g- Max chassis width at any point: 3”.
1h- Front & Rear maximum track width: 3”. Rear tires may extend pass the body fender lines so as to obtain maximum allowable width. Front tires must be under the body at all times.
1i- Chassis Clearance, Front & Rear: 0.063” minimum.
1j- Axles: 1/8" solid steel, front and rear. Front axle must pass through axle tube and rotate. Independent front wheels system accomplished by soldering a washer to the front axle and letting one wheel free wheel on the axle is allowed. (No ball bearing front wheels). No steel wire “dropped” front axles allowed.
1k- Front Tires: 0.875" min. dia. X 0.200" min. width. No “O” rings allowed. Front tires may be coated with clear nail polish or CA.
1l- Rear Tires: 0.935" min. dia. X  0.500" max. width. Treated & untreated natural or wonder rubber only, No “Speed” or “Super Natural” rubber allowed. Black rubber only.
 

Proper use of so-called half-rails or reinforcement bracing:

As shown here on either side of this sample chassis, the “half-rails” (on the left side) or a piece of brass rod (at right) are not allowed.

As shown here, a single 90-degree brass-rod piece per side soldered perpendicularly to the main rails from the motor bracket is legal.

90 degree “L” brace shown at left is not allowed.  “L” brace must be “perpendicular” as shown in example above.

2. Motor Type
2.1- TSRF T3215 or Falcon 2

3. Body 
3a- Only bodies from the approved list can be used. 
3b- 3 racing numbers must be used, on front and 2 sides.
3c- Bodies must be trimmed so as to show a full front air intake.
3d- Wheels must fit in the center of the body fenders.
3e- 3.25” Maximum body width, as measured over the wheel arches.
3f- Driver Figure / Interior: All cars must have a fully molded, separate three-dimensional interior complete with steering wheel and roll bar. Driver must be painted realistically.

NOTE: The use of "speed rubber" tires (regardless of their brand or name) that have a partial silicone content that effectively leave a deposit on the track is forbidden.
The use of such tires during qualifying or racing will cause immediate disqualification of the entrant/racer and a single warning. A second offence will cause permanent banning from D3 racing.

Any matter regarding this class must be submitted in writing to a member of the D3 Board of Directors

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