4.5" NASCAR Rules

CHASSIS:

1.       Any 4 1/2" chassis that is commercially available and approved by USSCA.

2.       If using extenders must use original manufacturer’s extenders on the chassis they were designed for.

3.       May solder extender to chassis.

4.       May remove front wings for extender / front wheel clearance only.

5.       Must be stamped and formed metal only.

6.       May brace chassis in any way you would like.

7.       A steel guide tongue reinforcement may be used, but the original guide tongue may not be removed, modified, or moved.

8.       Any oilites are allowed.

GEARS:

1.       Any gear ratio and gears permitted.

2.       May solder pinion on motor.

3.       Any pitch gears.

AXLES/TIRES:

1.       Minimum axle diameter front 3/32", rear 3/32".  Drill blank axles allowed.

2.       Tires front and rear must be composed of black foam rubber only.  No dyed tires allowed.

3.       May add nail polish to fronts.

4.       Rear minimum tire diameter .790".  Front minimum tire diameter .675” with a minimum front tire width of .400”.  Maximum rear tire width .810''.

5.       Independent rotating fronts allowed.

6.       Solid, one piece front axles only, no stubbies.

7.       Front axles may be soldered solid, but front wheels must rotate.

8.       Steel axles only. No hollow or other lightweight axles.

9.       Maximum width is 3 1/4".

10.   .062” clearance at the back, up to the rear axle.

11.   For all “FLAT” tracks, .032” clearance at the back up to the rear axle will be used with no minimum tire size.

12.   No tech at the front

OVAL:

 For “OVAL:” racing:  The offset should not stick out more than an 1/8" of an inch from the side of the chassis.

 LEAD WIRES: 

1.       Magnet wire or magnet type wire is not allowed.

2.       Guide clips are allowed.

3.       May add wire guide or retainer.

BODIES:

1.       Body must be commercially available and on approved body list.

2.       1/4" minimum rear bumper and must see front splitter on the front of the car.

3.       Maximum rear spoiler height of 1 5/8", measured from the tech block to the top of the spoiler.

4.       Must have three scale appearing numbers.

5.       Body must be fully painted and cover the entire chassis.

6.       May reinforce body with tape or Lexan.

7.       All windows must be clear and retain factory Lexan.

8.       Front wheel wells must be cut out. No cutting into the top of the fenders.  Chassis or track must not be visible.

9.       Body must have full Lexan or plastic 3-D stock car interior with properly painted and installed in the correct position, and completely covering the chassis.

10.   Bodies may not be moved forward or backward on the chassis.

11.   Tires must be located in the proper positions. Wheel wells must be cutouts. Full wheel and tire must be visible when viewed from the side.

12.   May NOT cut out the rear of the body.

MOTOR:

1.       Group 11-Contender, Challenger, Competitor (balanced).

2.       Any C-Can setup. NO aluminum end bells.

3.       Single ceramic magnets only.

4.       May epoxy or super glue magnets.

5.       No air gap, honing is allowed.

6.       Ball bearing allowed in the can only.