Arizona HO Racing Association Rules
(Spring 2010)

General Rules
1) The maximum width of any car is 1-5/16 inches (1.3125") except for T-Jet (1.125").
2) The maximum allowable lateral movement of the front axle is 1/32 inch.
3) After qualifying, and during the race, any part of the car may be replaced except for the body and chassis.
4) The body must be a replica of an actual car and must be painted.
5) Any body used must cover the chassis when viewed from above except through legal openings.
6) Any car without a body or with an interfering body will not be allowed to run.
7) Decisions regarding the rule interpretations will be made by AHORA Tech Committee.
8) Cars may be subject to a teardown to satisfy technical inspection.
9) Stock means original parts on car as it is mass produced.
10) Stock Replacement means any readily available part.
11) Readily available means mass produced and can be purchased from a licensed dealer.
12) Only one guide pin permitted.

AHORA Group 6
1. The only car eligible to compete in this class is the BSRT G3-R©
a) Any stiffness Chassis, Magnet Clip, and Timing Plate may be used

2. Only the following Motor and Traction magnets in their stock unaltered form may be used.
a) G-Force™ Ceramic-Grade Motor Magnets #290
b) G-Force™ Ceramic-Grade Traction Magnets #284

4. Armatures must be stock red wire, of a narrow gap design, and measure no less than 5.8-ohms.
a) Truing of the Commutator is OK
b) Balancing of the Stacks is OK
c) Epoxy may be added
d) The Commutator may be tied
e) The arm may have advanced timing

5. All electrical system parts shall be stock or BSRT stock replacement.
a) Gold & Silver parts are OK
b) Twisted Brush Endbells are OK

6. The Chassis, Magnet Clip, and Timing Plate must be stock and unaltered except for the following:
a) Add body mounts at the stock G3 location.
b) The pickup tabs on the chassis may be shortened, reinforced and/or replaced.
c) The chassis may be modified to retain the rear axle.

7. The axles, gears, gear spacer (optional), guide pin, and motor bushings shall be stock or BSRT stock replacement.
a) Ball Bearing are not allowed anywhere on the car
b) Tyco Pinions are OK

8. Only readily available double flange rims and Super Tires© Silicone Slip-On rear tires are permitted.

9. Vacuum-formed bodies must be used AND meet all General Rules.

10. Glues/adhesives are not allowed on the Chassis, Timing Plate, or Magnet Clip except for the following.
a) To help secure the Guide Pin
b) To help secure the Body Mounting System
c) Non-permanent adhesives may be used to help secure the Axle pins
d) Non-permanent adhesives may be used to help secure the Body pins

Fall 2010 Amendment