FRONT NOSE:
 

1. ​Only approved nose pieces manufactured by ABC approved manufacturers and visible ABC labels will be allowed for competition. 
    

2. All nose pieces must remain as manufactured and may not be intentionally altered in any way, including the return flanges on the bottom of the nose and at the nose/fender intersection. In the event that the lower part of the nose has been worn off, a replacement valance piece may be installed on the nose. This part will be made from plastic only and must measure 2¾ to 3 inches tall. The valance piece must be mounted in the same plane as the original air dam and will be subject to tech approval.
    

3. When trimming the nose flap, the cut that forms the front of the wheel opening must be 90 degrees to the ground.
    

4. The nose must be centered on the front tread width (measured at the racing surface).
    

5. The nose piece must be supported by a tubular support to the chassis. These support tubes must remain behind the nose piece and may not extend through or past the bumper.
    

6. The maximum front overhang from the centerline of the spindle to the leading edge of the lower air dam at the centerline is 46 inches (photo N1).
    

7. The maximum kick out on the lower air dam from the bumper line is 3 inches.
    

8. The minimum ground clearance along the entire bottom edge of the nose is 4 inches with the return flange intact.
    

9. The nose must fit the left fender/nose template (photo N2), the right fender/nose template (photo N3) and the vertical nose template (photo N4) within the allowable tolerances. For exact template location, see (photo F1 & photo F2).
    

10. The grill area above the bumper line cannot be cut out for any reason. All radiator cooling air must be obtained from the grill area below the bumper line.
     

11. Template (Horseshoe Template, photo N5) may be used to measure nose width & offset from centerline.

 

HOOD:
 

1. Only approved hoods manufactured by ABC approved manufacturers containing visible ABC labels will be allowed for competition.
   Carbon fiber hoods will not be allowed.
    

2. All hoods must remain as manufactured and may not be altered other than trimming the outer edge to fit the fenders, nose and windshield.
    

3. All hoods must be adequately braced so they do not deform under racing conditions.
    

4. The hood must fit tight to the fenders and windshield/cowl at all times.
    

5. The maximum allowable opening in the hood for air intake to the carburetor is 2½ inches by 20 inches. The only other holes (other than the air intake) allowed to be drilled in the hood are for the hood pins, and only one hole is allowed per pin.
    

6. All hoods shall have a minimum of 5 positive locating pins across the leading edge of the hood. Each hood pin is allowed only one hole for the fastening clip.
    

7. The hood must fit the centerline template (photo H1) within the allowed tolerances with hood pins installed.

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COWL PANEL:
 

1. The cowl panel is considered an extension of the hood & must fit the centerline template.
    

2. Only ABC approved cowls manufactured by ABC approved manufacturers containing visible ABC labels are allowed.
    

3. The air intake opening must be 2½" x 20" plus or minus 1/16".
    

FENDERS:
 

1. Only approved fenders manufactured by ABC approved manufacturers containing visible ABC labels will be allowed for competition. Carbon Fiber, Kevlar®, or metal fenders will not be allowed.
    

2. All fenders must be mounted as produced & may not be altered other than trimming excess material from the trailing edge of the fender at the fender/door intersection.
    

3. All fenders must be flange fitted to the nose.
    

4. Wheel openings may not be larger than 7 inches from the edge of the wheel (not the tire) on the front & rear of the wheel opening. Altering the wheel openings is prohibited.
    

5. The left fender must fit the left fender/nose template & the right fender must fit the right fender/nose template within the allowable tolerances.

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ROOF PANELS:
 

1. Only approved roof panels manufactured by ABC approved manufacturers containing visible ABC labels will be allowed for competition. Carbon fiber roofs will not be allowed.
    

2. All roof panels must be mounted as produced and may not be altered in any way.
    

3. A common roof panel will be used for all body styles.
    

4. The roof may be mounted a maximum of 2½ inches
   left of the centerline of the chassis.
    

5. The centerline of the roof must run parallel
   to the centerline of the tread width.
    

6. Roof rails will not be permitted.
    

7. The minimum height of the roof is 47 inches, measured 10 inches back from the leading edge of the roof on the centerline (photo R1). The maximum height at this dimension is 48 inches.
    

8. The minimum height at the rear of the roof is 45½ inches on all models. This will be regulated with the centerline template (photo R2) and the side-to-side template (photo R3 & photo R4). The roof panel must fit the templates within the allowable tolerances. These areas must maintain a 1/4" tolerance (as indicated by blue lines on templates).
    

9. The updated and enhanced front roof side-to-side template, (photo R5) may be used to determine if the A-posts have been altered or the front corners of the roof have been pulled down.
    

DOORS:
 

1. Only approved door panels manufactured by ABC approved manufacturers containing visible ABC labels will be allowed for competition.
    

2. All door panels must be mounted as produced and may not be altered in any way.
    

3. The width of the top of the left door will be a maximum of 2 inches from the center of the roll.
    

4. The width of the top of the right door will be a maximum of 3 inches from the center of the roll.
    

5. Doors may not extend back beyond the trailing edge of B-post. The trailing edge of the door must fit into a recess that is provided in the quarter panel.
    

6. The height at the front of the door will be 32½ inches minimum.
    

7. The height at the rear of the door will be 33 inches minimum. This height will be checked with a chain added to the “Referee” in 2007 (photo D1).
    

8. The width between the doors immediately behind the A-posts will be 68 inches at the top, measured through the car. See dimension sheet diagram.
    

9. The width between the doors immediately in front of the B-posts will be 67 inches at the top,
   measured through the car. See dimension sheet diagram.
    

10. Approved aluminum body panels will be a minimum of .040 inch thick.

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QUARTER PANELS:
 

1. Only approved quarter panels manufactured by ABC approved manufacturers containing visible ABC labels will be allowed for competition. Carbon Fiber, Kevlar®, or metal quarter panels will not be allowed.
    

2. All quarter panels must be mounted as produced and may not be altered other than the removal of the excess material beyond the scribe lines on the trailing edge at the quarter/bumper cover intersection and at the top, at the quarter/roof intersection, to ensure proper fit.
    

3. The rear deck template (photo Q2) has been added from the original builder's template and enhanced to go down the sides of the quarter panels behind the wheel to control the original intended shape of the quarter panel and will also control the front edge of the quarter panel behind the wheel opening to be 2" inward from the outside of the sidewall of the tire on both sides.
    

4. Quarter panel windows must be cut out to scribe line & have polycarbonate windows in both the left & right sides.
    

5. The quarter panels must fit the new updated side-to-side template (photo Q1) within the allowable tolerances. For exact template location, see (photo R3 & photo R4).
    

6. The height at the quarter panel/deck lid/bumper cover intersection will be 34½ inches (34¼" minimum) on both the left & right sides (photo Q3 & photo Q4).
    

7. The maximum gap is 3/8" for the first 15" up from ground. The measurement will be taken from the leg of the quarter panel to the framing square as indicated with the arrow (photo Q5).
    

8. The quarter panels must be mounted at the same plane as the deck lid and the top of the bumper cover as shown in (photo Q6).
    

9. Wheel openings may not be larger than 7 inches from the edge of the wheel (not the tire) on the front & rear of the wheel opening. Altering the wheel openings is prohibited.

​

ROCKER PANELS:
 

1. Only approved rocker panels manufactured by ABC approved manufacturers containing visible ABC labels will be allowed for competition.
    

2. Rocker panels must be mounted in a single plane from the front to rear & top to bottom as shown in (photo RP1 & photo Q5).
    

3. All rocker panels must be mounted as produced & may not be altered other than notching for the jack posts and trimming to length.
    

4. The step in the rocker panel for rigidity may be a maximum of 1/4 inch.
    

5. The step out on the rocker panel must run parallel to the bottom edge of the rocker panel.
    

6. The minimum height of the rocker panel will be 4 inches from the racing surface.

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DECK LID:
 

1. Only approved aluminum deck lids manufactured by ABC approved manufacturers containing visible ABC labels will be allowed for competition.
    

2. All deck lids must remain as manufactured and may not be altered in any way.
    

3. The deck lid must be substantial enough to prevent it from deforming under racing conditions.
    

4. The deck lid must be able to be opened for inspection purposes.
    

5. The deck lid must fit to the centerline template (photo DL1) within the allowable tolerance of 1/4" (as indicated by blue line on template).
    

6. Approved aluminum body panels will be a minimum of .040 inch thick.

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DECK LID FILLER PANEL:
 

1. Only approved deck lid filler panels manufactured by ABC approved manufacturers containing visible ABC labels will be allowed for competition.
    

2. All deck lid filler panels must remain as manufactured and may not be altered in any way.
    

3. The deck lid filler panel must fit the centerline template #1 (photo DL1) within the allowable tolerances.

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REAR BUMPER COVER:
 

1. Only approved rear bumper covers manufactured by ABC approved manufacturers containing visible ABC labels will be allowed for competition.
    

2. All bumper covers must remain as manufactured and may not be altered in any way.
    

3. The bumper cover must be designed in a manner that when the spoiler is mounted, the dimension from the centerline of the rear axle to the base of the spoiler at the centerline will not exceed 47 inches.
    

4. The bumper cover must be mounted on the centerline and not offset. One method of checking the location of the bumper cover location in relation to the centerline is illustrated in photo (photo BC1) below and Bumper Cover Location illustration on page 14. Use an eight foot straight edge lined up with top inside edge of the right door, front and rear to project a line to the rear of the car. The maximum distance the right end of the spoiler can be from the line will be 1/2 inch. This may not be the only method used to insure that the bumper cover is mounted on the centerline.
    

5. The top of the bumper cover must be supported and securely fastened to prevent it from deforming under race conditions.
    

6. The bumper cover must be supported by a tubular support to the chassis. These support tubes must remain behind the bumper cover and may not extend through or past the bumper. The bumper cover must be attached to the support tubes
   with a minimum of 2 fasteners.
    

7. The bumper cover must be mounted to fit the centerline template (photo BC2) for the correct rear overhang dimension and the vertical bumper cover template #3 within the allowable tolerances. Note: Template #3 is an optional template available to tech inspectors. It is used to confirm that the bumper cover contour is as manufactured (and not altered).
    

8. The bumper cover must be mounted at the same plane as the deck lid and the top of the quarter panel as shown in (photo BC2 & photo BC3).

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SPOILER:
 

1. Only approved spoilers manufactured by ABC approved manufacturers will be allowed for competition.
    

2. An approved rear spoiler must be a non-adjustable (from the driver’s compartment) part of the body that controls the flow over one surface only.
    

3. There will be two options for the size of the polycarbonate spoiler blade, to be determined by the sanctioning body.
   
   Both size options will use the same base:
   
   Option #1 RECOMMENDED - 6½ inches tall by 60 inches wide.
   
   Option #2 - 5 inches tall by 60 inches wide.
   
   All spoilers will have a minimum 3/16" thick clear polycarbonate blade. The spoiler blade must be mounted on the front side of the brackets.
    

4. The maximum width of the spoiler will be measured across the rear of the spoiler.
    

5. The spoiler must maintain the same contour as the bumper cover.
    

6. The spoiler must be centered on the bumper cover.
    

7. The spoiler must have a minimum 1/2 inch to maximum 5/8 inch split in the center to accommodate the centerline template (photo BC2).
    

8. The base of the spoiler at the centerline may not exceed 47 inches from the centerline of the rear axle.
    

9. Rudders or forward mounted brackets will not be permitted.
    

10. Spoiler supports mounted from the rear side of the spoiler to the bumper cover will be permitted.
     

11. A minimum of the top 3½ inches of the rear spoilers of all cars must be made of clear, flat polycarbonate.
     

12. Minimum spoiler angle - 55 degrees.
     

WINDSHIELD:
 

1. A clear, molded polycarbonate windshield with a minimum thickness of 1/8 inch must be used in all cars. The same shape windshield will be used for all body styles. Flat, unmolded windshields are not allowed.
    

2. All windshields must be supported by a minimum of three internal windshield braces to prevent deflection under racing conditions.
    

3. The windshield braces shall be made of a minimum 1/8 inch thick and 1 inch wide aluminum.
    

4. The windshield braces should be spaced on a minimum of 5 inch centers and should be approximately in the center of the windshield.

​

REAR WINDOW
 

1. A clear, molded polycarbonate rear window with a minimum thickness of .090 inch must be used in all cars. The same shape rear window will be used for all body styles. Flat, unmolded rear windows are not allowed.
    

2. All rear windows must be supported by a minimum of two internal window braces to prevent deflection under racing conditions.
    

3. The window braces shall be made of a minimum 1/8 inch thick and 1 inch wide aluminum.
    

4. A maximum of three holes will be allowed in the rear window and the holes must lead directly to an adjustor (screw jacks and or panhard / track bar). The maximum diameter of the holes allowed will be 1 inch.

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QUARTER PANEL WINDOWS:
 

1. Clear polycarbonate quarter panel windows with a minimum thickness of .090 inch must be used in all cars.
    

2. The quarter panel window shape will vary for brand identification.
    

3. Flat or molded quarter panel windows are allowed for competition.

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DOOR VENT WINDOWS:
 

1. The maximum dimension for the vent window along the top of the door will be 12 inches and must go 90 degrees from the top of the door up to the A-post (photo V1).

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