Formerly Door Slammr Class

Car Body / Dimensions

Wheel Base : You can not alter the wheel base with respect to the wheel openings of the car body
Height : Not to exceed 4" inches...
Length : Not to exceed actual model length...
Width : Not to exceed 3.5" inches
Weight : Not to exceed 6.0 ounces (170 grams) 1/10th Digital scale used

1/24th or 1/25th scale size plastic, metal or wood bodies may be used

Other bodies also allowed as long as the make and model are easily identified, 1/24th or 1/25th scale size

Additional materials maybe added as long as they meet the Car Dimensions above

Original windshields (convertables), roofs, doors, fenders, grills, hoods, trunks and main body parts must be used (No chopping up or hacking the body)

Cars must have windows installed (Plastic, paper or tape)

Car must have at least 4 axles and wheels

The axles and wheels must be attached to the side of the car body / frame in the original wheel wells and/or fenders

No extenders on the front or tape covering any part of the body.  Tape can be used only to hold the body to the chassis and cover the bottom.



Center Rail Height : 1/4" inch ( 7mm ) *
Center Rail Width : 1 5/8" inches (4.2 cm) *

* Wheels must clear the outside to outside center rail width measurement

Axles

a. Minimum diameter .084
b. Axles must have a nail head

Wheels

 BSA

a. May be CnCed, lathed, polished and/or sanded to true the edge of tread, surface and circumference
b. The tread / contact surface must remain flat and parallel to the bore as humanly possible
c. Some of the small detailed ridge marks at the edge of the tread must remain visible around the entire circumference
d. No Angling, Reshaping, Canting, Round Crowning, Tapering, H-ing, V-ing, Dishing, the outside of the wheels and/or tread surface
e. No removing or reducing the letters or spokes
f. 7.50mm Minimum Tread Width / 31mm Maximum Diameter
g. No drilling additional holes
h. No additional weight reduction is allowed other than hub reducing
i. Wheel covers may be used only if entire wheel is visible

(Wheels will be checked with digital calipers if needed)


The following Modifications are not allowed

a. Starting or finish line devices
b. Electronic or lighting devices
c. Glass or extremely fragile parts
d. Paint that is wet, smudges or extremely sticky
e. Bearings and/or Bushings
f. Sharp objects, sandpaper or abrasives on the bottom of car (We do not want any damage to the rubber stopping pads)
g. Axles and/or wheels attached to any device that mechanically or alters rotation and spin
h. Any part of the car to go beyond the starting peg (see photo below)
j. Propellants