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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. This class is the third event to run during an N.E.C.C. event.

While looking much like their shorter siblings in Senior Group 10, these cars use a 'built' motor and are harder to drive. 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 one of the Series Directors. They are the final judges 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 allowed except the open motor box styles (JK Cheetah 11, ProSlot, Kelly SpeedFX)
• May use lightweight replacement pan
• Motor may be soldered to chassis
• Motor bracket may be enlarged to allow better gear mesh
• May brace rear uprights

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 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
• D cans only
• Only tagged, balanced 16D arms such as those sold by Parma, Viper, RJR, Mura, or ProSlot only. B.O.W. arms are not legal
• Minimum dimensions of a stack length of 0.600" and 0.513" minimum diameter and 70 turns of 30 gauge wire
• Any horizontal endbell hardware may be used
• Any motor brushes may be used
• Any motor springs may be used
• Must be 16D magnets only
• Magnets may be glued into position, shimmed and honed
• Oilite 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 on may added or replaced
• The can and/or magnets cannot be modified to provide axle clearance, but the can oilite 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; no air control devices allowed
• Bodies must be fully painted and all 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" measured from the tech block
• Front and rear bumpers must be 1/4"
• Front wheel wells must be left clear, or cut to the horizontal centerline of the wheel
• The wheel well must be as big as if not bigger than the wheel that is in it
• No air control devices allowed
• Bodies must have 3 numbers placed on roof and both doors
• Numbers are to be painted or stickers 3/8” tall or taller
•You must not be able to see the chassis when viewed through the windows

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