GENERAL RULES - ROAR

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8.6.9 Rebuildable 19T “Super Stock” motor armatures must be machine-wound using a crosswraptechnique. Armatures machine-wound using a hemi-wrap technique will be allowedbeginning July 31, 2007. The legal 19T “Super Stock” wind is a minimum of 1170mm ofround 19 AWG (American Wire Gauge) wire, having a maximum wire diameter (includinginsulation) of .914mm, resulting in no less than 19 continuous turns of wire on each pole.There is no tolerance on the minimum length of wire, nor is there a plus tolerance allowedon the wire diameter.8.6.10 Tabs on the armature’s commutator may only be “compression welded”. No after-marketwelding or silver brazing will be permitted. The Commutator must be locked to thearmature laminations to prevent timing changes by twisting of the armature shaft.8.6.11 Deleted, repeated in 8.6.3.8.6.12 No split, skewed, or tri-rotor armature stacks are allowed. The coated magnetizablestacks will have a maximum length of 22.6mm and a minimum length of 19.0mm.Originally manufactured longitudinal slots centered in the pole crowns may be no widerthan .032in (0.8mm.) These are limited to one per pole and must be parallel to thearmature shaft. No secondary machined slots are permitted. The crowns of each armaturepole must be symmetrical in cross section, with a constant crown radius. Steps in thecrown or longitudinal holes in the crown are not allowed.8.6.13 No modifications to the stack may be made other than the machining of balancing marks.Modifications to the original OEM/Importer/Manufacturer configurations, including but notlimited to excessive machining, milling or turning to lighten the armature, or enhance theperformance of the full stack are not allowed.8.6.14 Armature must be tagged in a way that it is easy to identify both in and out of the motor.The tag must be permanently affixed to the armature and made of materials that will notself destruct from the heat of the motor or standard motor cleaning agents. The tag shouldbe positioned between two poles of the armature and must be a minimum of .500” inlength. The tag must be printed with the OEM manufacturer’s name and “19” (e.g., “EPIC19”, “YOK 19”, etc.).8.6.15 Armature shaft must extend .125” beyond the endbell bushing when motor is assembled.The overall length of the armature shaft should be 2.775” with .385” extending beyond theend of the commutator. The commutator end of armature shaft must have a machined“step” that differs from the standard radius or taper currently used by OEM manufacturersin production of other stock or modified motors. The step should continue for a minimumof .060” from the end of the shaft.8.6.16 No modifications to the physical construction of the motor can, endbell, or armature will bepermitted (e.g. adding or removing material from the armature stack, changing the brushhoods from stand up to lay-down and visa-versa, relocating spring posts). If a motorshows signs of tampering during post race inspection, the driver will receive no score forthat qualifier or main.8.6.17 Epoxy balancing and machined balancing methods are permitted. If epoxy balancing isused, then no more than two balancing marks are permitted on the entire armature. If onlymachined balancing is used then no more than five balancing marks are permitted on theentire armature. Machined balancing consists of drilled holes or grinding marks made onlyon the pole centerlines.8.6.18 The armature, motor can, and endbell of a rebuildable 19T “Super Stock” motor must allbe from the same motor manufacturer and may only contain components from the samemodel. No hybrid motors or mixing of parts from different models will be permitted.38
19T “SUPER-STOCK” MOTOR ARMATURE39
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Page 31 and 32: 7.3 TIRE RULES7.3.1 Tires used in R
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Page 35 and 36: 8.5.4.2 Timing advance must be fixe
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Page 45 and 46: 8.9.2 1/10 scale Electric Off-road
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Page 52 and 53: 8.9.7 1/12 Scale Electric Oval:8.9.
Page 54 and 55: 8.9.9 1/10 Scale Electric Dirt Oval
Page 56 and 57: 9.2.8 FUEL TANK SPECIFICATIONS:9.2.
Page 58 and 59: 9.4.2 1/10 Scale Fuel Off-road Truc
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Page 79 and 80: in the case of 2.4GHz DSS systems)
Page 81 and 82: 13 CONCOURS RULES13.4 GENERAL13.4.5
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GENERAL RULES - ROAR

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