VHORS CLASSIC CLASS RULES:
Cars - General
CC: CO-01. Each racer may have one only one car pre-inspected for the entire VHORS Classic Class event. After a car has been inspected for an event, there shall be no substitutions or replacements. The only exception to the substitution/replacement Rule is where, in the judgment of the Shootout Rules Committee or Tech Committee member(s) present at the time, extreme circumstances are present, such as where a car becomes physically unfit for participation. Such a decision lies within the sound discretion of the Committee member(s) and is final.
CC:CO-02. There is no weight limit for the fully assembled VHORS Classic Class car.
CC:CO-03. Cars should pass freely through the Official Tech Block: 1 1/8" (1.125” +/-.002”) width.
CC:CO-04. Wheels and tires may protrude outward of the body.
CC:CO-05. Every component on the car shall meet the “On Market” requirement.
Bodies
CC: B-01. Bodies shall be injection molded plastic when using original Aurora, Atlas, Johnny Lightning, Auto World, Tyco, etc. Resin cast bodies must be almost exact reproductions of these originals. Any resin caster that wants to cast a Classic Class body may submit a sample body to YenSid or Kevin prior to 90 days to the Shoot Out for approval.
CC: B-02. Bodies must be modeled after actual automobiles that were manufactured for the public or racing up to and including model year 1975. Resin cast bodies must also conform to this rule.
CC: B-03. Bodies may be lowered only by means of shortening the body posts.
CC: B-04. Bodies may be ground out a slightly in the front end but only to allow room for pickup shoe travel.
CC: B-05. Bodies must be complete with full windows, bumpers, drivers, roll bars and other accessories which accompanied the car as originally manufactured.
CC: B-06. Bodies must contain the original two screw posts. The original position of screw posts must remain intact and shall not be relocated to suit a different setup or wheelbase. Further, the posts shall be included and designed as part of the body specifically for mounting to an Aurora Thunder Jet Chassis. Some examples of acceptable bodies: Aurora, Bauer, Nu-Rora, Marx, Model Motoring, Playing Mantis/Johnny Lightning, Atlas. This is not an exhaustive list.
CC: B-07. Body must be fastened securely to the chassis using two screws.
CC: B-08. OEM wheelbase must be maintained.
CC: B-09. Windows must completely fill window opening in the front and rear. Grinding of windows is allowed only if the window bottom extends into the body cavity, in which case the window only may be ground, but only to the point where it is flush with the inside of the body, and without grinding the body itself.
CC: B-10. Side windows must be intact.
CC: B-11. There shall be no substitute materials for original injection molded plastic windows used by Aurora, Atlas, Tyco, etc. Resin cast bodies must have clear glass comparable in thickness to original bodies. NO vacuum thin Lexan glass is permitted.
Chassis
CC: C-01. Chassis shall be stock Aurora Thunder Jet with all copper components.
CC: C-02. Brush springs shall not be modified in any way. They may be adjusted only in their original configuration to change the tension on the brushes.
CC: C-03. Guide pins shall be original design. They shall not be metal.
CC: C-04. Guide pins may be glued to chassis.
CC: C-05. Guide pins may be shortened in length to accommodate different tracks.
CC: C-06. Two mounting screws shall be used to hold the body securely on the chassis.
CC: C-07. The gear plate clamp may be bent (but not cut or otherwise altered) to improve fitment.
Pickup shoes and springs
CC: PSS-01. Pick up shoes and springs shall be solid copper and manufactured by Aurora, Model Motoring or American Line ONLY.
CC: PSS-02. Pick up shoe springs may be cut (coils removed) to desired length.
CC: PSS-03. Pick up shoe springs may be stretched to desired length.
CC: PSS-04. The pickup shoe may be bent, but only for the purposes of adjusting the original contact area to accommodate different rail heights of the various tracks.
CC: PSS-05. Pick up shoe travel may only be adjusted by 1) bending the front "window" portion of the shoe that hooks to the front of the chassis, 2) bending the rear hook which attaches to the chassis’ copper hardware, or 3) bending the hangers on the chassis into which the rear hook of the shoe connects. 4) By using tape or heat shrink tubing on the front window of the shoe.
Magnets
CC: M-01. Magnets shall be manufactured by Aurora and originally supplied with the Thunder Jet chassis.
CC: M-02. Magnets may be shimmed using non-ferrous materials only.
CC: M-03. Magnets may be matched.
CC: M-04. All paint on magnets shall have original factory paint. There shall be no substantial removal of paint.
CC: M-05. Painting of magnets shall not be allowed.
Armatures
CC: A-01. Only original, stock, unaltered armatures, with gray tips shall be allowed.
CC: A-02. Armatures shall measure 15 ohms or greater at each pole.
CC: A-03. There shall be no modifications to the armature.
Commutator Brushes
CC: CB-01. Commutator brushes shall be manufactured of a copper/carbon compound.
CC: CB-02. Both the top and bottom surfaces shall remain flat.
CC: CB-03. Brushes must remain unmodified from their original out of the package condition.
CC: CB-04. Replacement brushes must meet VHORS required “On Market” definition requirements.
Gears
CC: G-01. The armature pinion, idler gear and driven gear shall be brass.
CC: G-02. The armature pinion gear shall have 14 teeth.
CC: G-03. The idler gear shall have 24 teeth.
CC: G-03. The driven gear shall have 24 teeth.
CC: G-04. The final pinion shall have 9 teeth.
CC: G-05. The Crown gear shall have 15 teeth.
CC: G-06. The Crown gear shall not be metal.
CC: G-07. The Crown gear shall not be shimmed.
CC: G-08. Gears may be soldered or glued to their respective shafts.
CC: G-09. Gears may be lapped and/or polished. They shall not be beveled.
Tires/Wheels/Axles
CC: TWA-01. All tires shall be equal to or greater than 0.350" diameter.
CC: TWA-02. Tires may be made of silicone.
CC: TWA-03. Replacement wheels may be double flanged and may be of the screw on or pressed on variety.
CC: TWA-04. Axle nuts, spacers or springs shall be kept on the outer side of the chassis.
CC: TWA-05. Spacers shall be made only of plastic, copper, aluminum, brass, or steel.
CC: TWA-06. Axles shall not exceed 1-1/8” in length. AND must be original “slot car” axles including Aurora, Tyco, Lionel, Atlas, etc. Axles may also be fashioned from drill rod.
CC: TWA-07. All four tires shall simultaneously touch the test track in the static position.
CC: TWA-08. Lateral movement of the front tire/axle assembly shall not exceed 1/32" (.03")
CC: TWA-09. Any tire/hub combination may be used for front and/or rear. Tires may not exceed standard replacement width for acceptable after market narrow tires i.e., Thunder Slicks, Black Hawks, Heister’s, etc.
A Final Rule:
If anything is not specifically stated or addressed in the above rules it is NOT permitted.
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