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AMSRA National Rules – 2005
Race Formats: All racers will be divided into two classes, expert and amateur. The regional and national directors will determine (based on skill, experience and factory support) all racers classifications for the event. Their decision is final. Amateur must race as amateur but may also race in expert class without hurting their amateur standing. Race format will be 3 minutes on, 2 minutes off. There will be a kids 4” Nascar race for ages 12 and under on Saturday morning. All decisions and rulings of the national tech director will be final.
Equipment:
General Rules All restricted parts must be a stock item with Eagle Distributing and be readily available from the manufacturers throughout the year. Parts from offshore sources are not legal unless carried regularly by Eagle. Parts made specially for one racer or a group of racers that are not available to the general population of racers are not legal. No ball bearings are allowed. No modifications may be made to any manufactured part except where specified in the individual class specifications. Cars must use a single guide flag. The overall width of the car must not exceed 3.25”. Front wheels must be those made specifically for scale racing. No wing car stamped tire thingies allowed with the exception of GT-12 class. Front tires must have a metal or molded plastic hub and a rubber tire. 4-1/2” Nascar must use a scale appearing black front tire of the following minimum dimensions: .675” diameter and .400” wide. Drivers are responsible for keeping their cars legal at all stages of a race.
Body Rules The following are the only legal bodies for the National race 4” NASCAR All Parma, JK and Kelly bodies are legal Outisight bodies will be legal if a sufficient quantity is made available to the raceway prior to the NATS. 1/8” front and rear bumpers required 4-1/2” NASCAR All Parma, JK, Kelly and Outisight bodies are legal. 1/4” front and rear bumpers required GT-1 All Parma, JK and Kelly bodies are legal Outisight : Porsche, Mercedes, BMW and Ferrari 333 are legal.
GTP and GT-12 All Parma, JK and Kelly bodies are legal Outisight : Bentley, Mercedes and Caddy
All classes with enclosed cockpits are required to have a colored 3-D interior. All classes with open cockpits must have a colored 3-D driver figure. All bodies must be opaque when viewed from above on the tech block. All bodies must display 3 race numbers of appropriate size and location for their class.
Chassis Rules 4” classes must run a stamped steel chassis. 4-1/2” classes must run a stamped steel chassis. May use aluminum pans. All classes must use either a 3/32” or 1/8” diameter rear axle. All classes must use either 48 pitch or 64 pitch gearing. Ground clearance will be .0625” under the rear of the chassis and gear. Rear motor mount on the stamped steel chassis may be modified to allow for proper motor mounting and gear clearance but a portion of the mount must be retained. Pin tubes may be added by soldering to the chassis to facilitate body mounting.
Motor Rules
4” NASCAR 16D or 16C motor may be used. Legal manufacturers are Proslot, SpeedFX, FastOnes, Parma, Kelly, Kamen or RJR. Armature must be tagged 16D or 16C and may be interchanged in either motor. Armature must conform to the following specifications: Stack length (minimum) = .600 Diameter (minimum) = .513 Armature must be machine wound from 70 series turns of #30 AWG wire.
4-1/2” NASCAR Same specifications as 4” NASCAR
GT-1 Contender class motor only may be used. Legal manufacturers are Proslot, Kelly, Koford, RJR, Mura, FastOnes, Champion and Kamen. Armatures must be tagged and conform to the following specifications: Stack length (minimum) = .440 Diameter (minimum) = .513 Armature must be machine wound from 55 series turns of #30 AWG wire.
GTP Contender or S16-C motors may be used. Legal manufacturers are Proslot, Kelly, Koford, FastOnes, RJR, Mura, Champion and Kamen. Armatures must be tagged and conform to the following specifications: Contender Same as above in GT-1
S16-C Stack length (minimum) = .440 Diameter (minimum) = .513 Armature must be machine wound from 55 series turns of #28 AWG wire per pole.
GT-12 X-12 motors only may be used Legal manufacturers are ProSlot, Kelly, Koford, FastOnes, RJR, Mura, Champion and Kamen. Single ceramic magnets only. Strap cans are not allowed. No quad magnets allowed. Armatures must be tagged and conform to the following specifications: Stack length (minimum) = .350 Diameter (minimum) = .513 Armature must be machine wound from 50 series turns of #29 AWG wire per pole.
All classes use only unaltered single ceramic magnets. No Quad magnets No shunt wires |
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---- © Marlin Hobby 2003 ---- <mailto:webmaster@amsra.com?subject=permission> |
