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4.5" Stockcars

P1010039

About 4.5" Stockcars

Also known as Production 1/24th Stockcars, this class is the only class in the N.E.C.C. to use a 4.5" chassis. The look of the car is further defined by the full front tires and a NASCAR body. This class is the third event to run during an N.E.C.C. event.

These cars use a 'built' motor and are harder to drive than a 4" chassis. Handling is a large factor in the performance of these cars; chassis setup is critical to a good finish in the race. While that's true in any class, it's even more so with the often-temperamental 4.5" stockcars.

Restrictions: This class is open to anyone.

4.5" Stockcar Rules

Rules specific to the 4.5" Stockcars class are broken down into categories and listed below for convenience. If there is a question or "gray area" about whether or not the rules will allow what you want to do, consult the Series Director. He is the final judge of what will and will not be allowed to race.

All N.E.C.C. General Rules apply to this class as well.

Chassis• Any mass-produced 4.5” stamped steel flexi chassis.
• A lightweight replacement pan may be used.
• Motor may be soldered to chassis.
• Motor bracket may be enlarged to allow better gear mesh.
• Rear uprights may be braced.

Gears• Any gear ratio allowed.
• Must be 48 pitch plastic spur gears.
• May solder pinion on motor.

Tires• Minimum rear tire diameter allowed is 0.790".
• Minimum front tire diameter allowed is 5/8" (0.625").
• Minimum front tire width 0.400”.
• May add nail polish to front tires.
• Independent rotating fronts allowed.
• Front wheels must rotate.
• Front wheels must have a minimum track width of 3".

Axles• Must use 1/8 inch rear axles and must be solid.
• Miniumum front axle diameter is 3/32".

Motors• Any 16D setup made for Parma, Pro-Slot, Kamen or Kelly.
• Only tagged, balanced 16D arms from Parma, Viper, Mura, RJR, or Proslot are allowed.  B.O.W. arms are not legal.
• Minimum dimensions of a stack length of 0.600 inch and 0.513 inch minimum diameter and 70 turns of 30 gauge wire.
• Any horizontal end bell hardware may be used.
• Any motor brushes and any motor springs may be used.
• Only 16D Magnets may be used and can be glued into position, shimmed, honed.
• Bushings may be soldered or glued to the can.
• New holes may be drilled in the can to attach the end bell, and screws holding the end bell may be added or replaced.
• The can and/or magnets cannot be modified to provide axle clearance, but the can bushing may be notched so as to provide gear and/or chassis clearance.
Note: This is the same motor as in the Outlaw Group 10 class.

Bodies• Any 4.5” NASCAR style stock car is allowed.
• Bodies must be fully painted (so you can’t see chassis through paint) and window areas left clear.
• Body must have full opaque Stock Car interior installed in the correct position.
• No paper or clear interiors are allowed. Must be a three dimensional interior.
• Cars must have a minimum roof height of 1 7/8 inch measured from the tech block.
• Front and rear bumpers must be ¼”. 
• Front wheel wells must be left clear, or cut to the horizontal centerline of the wheel.
• Bodies must have 3 painted or sticker numbers placed on roof and both doors.                  
• Numbers must be 3/8” tall or taller. 
• You must not be able to see the chassis when viewed through the windows.

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