Post by PWDRacing on Oct 12, 2008 22:33:05 GMT -6
Limited Division
BODY:
1. The main body structure must be made of wood.
2. Car Specs:
A. Width - Not to exceed 2 3/4 inches
B. Length - Not to exceed 7 inches
C. Weight - Not to exceed 5.0 ounces on scale accurate to 1/10 ounce.
D. Height- Not to exceed 2 3/4 inches
E. Center Rail Width Clearance – No less than 1 3/4 inches minimum.
F. Bottom Clearance - No less than 3/8 inches from track. Fender flairs with less clearance are acceptable as long as the center rail width clearance is the same in rule E.
G. Wheelbase –All cars in the limited class must have a wheel base of no more than 4 1/2" and no less than 4 3/8", with the two rear wheels being positioned directly across the body from one another and the two front wheels being positioned directly across the body from one another.
3. The car design may be enhanced by the addition of other stable materials such as plastic or metal. Any additions must be firmly attached and meet Car Size Requirements.
4. No part of the car body, wheels or attachments may protrude in front of the starting peg.
5. The following items are PROHIBITED:
A. Springs
B. Starting devices or propellants
C. Electronic or lighting devices that interfere with the race electronics.
D. Liquids, wet paint, oil, sticky substance, or powders of any kind (other than axle lubrication)
E. Glass or excessively fragile parts
F. Wheel bearings, bushings or inserts
G. Loose objects on car
H. Magnets
I. No part of any car, or attachment to any car, that is metal, pointed, sharp, and/or jagged may be capable of contacting any part of the track.
6. WHEELS:
A. BSA, Pine-car, Pine-Pro or Awana wide wheels are the only wheels allowed for the Limited Racing Division. Outer wheel surface may be lightly sanded, shaved, or polished to remove surface imperfections and mold casting burrs, but must not be reshaped in any way in an attempt to lighten the wheel, minimize tread contact or alter aerodynamics. Tread surface must be flat and parallel to the wheel bore. Coning the hubs and truing the inside edge is allowed. Tread width may not be less than 7.5 mm. You may add material to the inside of the wheel to aid in balancing (glue, fingernail polish, tape) of the wheel, but no material may be removed.
B. Wheel Bore treatment is allowed including polishing and/or tapping. Wheel bores may not be filled and re-drilled to achieve better fit with the axle.
7. The following wheel modifications are PROHIBITED:
A. Rounding of wheel edges
B. Grooving, H-cutting or V-cutting
C. Altering of wheel profile
D. Narrowing the tread surface
E. Drilling sidewalls
F. Hollowing, sanding, or otherwise removing or modifying plastic material from inside the wheel
G. Filling of any wheel surface with any type of material
8. There must be at least four wheels on the car, however, it is not required that all four wheels make contact with the track surface.
9. Each wheel must be mounted on an axle, on the outside of the car, in the vertical position. Each wheel must be attached directly to the car by an axle and spin freely. No part of the wheel may overlap the center guide by more than 1/8 inch.
AXLES:
10. Nail, pin and/or one piece rod type axles are allowed with an overall diameter of no less than .084 inches. Some polishing and/or modification is allowed as long as overall diameter is not reduced below .084 requirement. Grooves are allowed, the depth of the groove(s) is not limited so long as the journal portion of the axle (the part the wheel rides on) is no less than the stated minimum diameter.
11. Axles must not be connected to any device that mechanically alters rotation and spin.
12. Axles must be mounted into the wood sections of car. Drilled holes or slots can be used.
13. Over-application of lubricant which results in excessive shedding onto the track is not allowed. Approved lubricants include (but are not limited to) graphite, Teflon, Nyloil, and Krytox.
14. Cars may be reclassified or disqualified if they are determined by the race officials to not meet these requirements.
BODY:
1. The main body structure must be made of wood.
2. Car Specs:
A. Width - Not to exceed 2 3/4 inches
B. Length - Not to exceed 7 inches
C. Weight - Not to exceed 5.0 ounces on scale accurate to 1/10 ounce.
D. Height- Not to exceed 2 3/4 inches
E. Center Rail Width Clearance – No less than 1 3/4 inches minimum.
F. Bottom Clearance - No less than 3/8 inches from track. Fender flairs with less clearance are acceptable as long as the center rail width clearance is the same in rule E.
G. Wheelbase –All cars in the limited class must have a wheel base of no more than 4 1/2" and no less than 4 3/8", with the two rear wheels being positioned directly across the body from one another and the two front wheels being positioned directly across the body from one another.
3. The car design may be enhanced by the addition of other stable materials such as plastic or metal. Any additions must be firmly attached and meet Car Size Requirements.
4. No part of the car body, wheels or attachments may protrude in front of the starting peg.
5. The following items are PROHIBITED:
A. Springs
B. Starting devices or propellants
C. Electronic or lighting devices that interfere with the race electronics.
D. Liquids, wet paint, oil, sticky substance, or powders of any kind (other than axle lubrication)
E. Glass or excessively fragile parts
F. Wheel bearings, bushings or inserts
G. Loose objects on car
H. Magnets
I. No part of any car, or attachment to any car, that is metal, pointed, sharp, and/or jagged may be capable of contacting any part of the track.
6. WHEELS:
A. BSA, Pine-car, Pine-Pro or Awana wide wheels are the only wheels allowed for the Limited Racing Division. Outer wheel surface may be lightly sanded, shaved, or polished to remove surface imperfections and mold casting burrs, but must not be reshaped in any way in an attempt to lighten the wheel, minimize tread contact or alter aerodynamics. Tread surface must be flat and parallel to the wheel bore. Coning the hubs and truing the inside edge is allowed. Tread width may not be less than 7.5 mm. You may add material to the inside of the wheel to aid in balancing (glue, fingernail polish, tape) of the wheel, but no material may be removed.
B. Wheel Bore treatment is allowed including polishing and/or tapping. Wheel bores may not be filled and re-drilled to achieve better fit with the axle.
7. The following wheel modifications are PROHIBITED:
A. Rounding of wheel edges
B. Grooving, H-cutting or V-cutting
C. Altering of wheel profile
D. Narrowing the tread surface
E. Drilling sidewalls
F. Hollowing, sanding, or otherwise removing or modifying plastic material from inside the wheel
G. Filling of any wheel surface with any type of material
8. There must be at least four wheels on the car, however, it is not required that all four wheels make contact with the track surface.
9. Each wheel must be mounted on an axle, on the outside of the car, in the vertical position. Each wheel must be attached directly to the car by an axle and spin freely. No part of the wheel may overlap the center guide by more than 1/8 inch.
AXLES:
10. Nail, pin and/or one piece rod type axles are allowed with an overall diameter of no less than .084 inches. Some polishing and/or modification is allowed as long as overall diameter is not reduced below .084 requirement. Grooves are allowed, the depth of the groove(s) is not limited so long as the journal portion of the axle (the part the wheel rides on) is no less than the stated minimum diameter.
11. Axles must not be connected to any device that mechanically alters rotation and spin.
12. Axles must be mounted into the wood sections of car. Drilled holes or slots can be used.
13. Over-application of lubricant which results in excessive shedding onto the track is not allowed. Approved lubricants include (but are not limited to) graphite, Teflon, Nyloil, and Krytox.
14. Cars may be reclassified or disqualified if they are determined by the race officials to not meet these requirements.