Post by P D D R 2 on Dec 16, 2007 12:52:15 GMT -7
Door Slammr' |
Rules and Regulations
One Door Slammr' car per Builder name.
Once you enter a car in a builder name that car must remain
with the builder that it was entered with.
You may use multiple builder names but each car that is entered with a builder can only score points for that name.
You can use any car that you have built over the years as long as they meet the race requirements.
Cars are staged straight down the lane and the wheels pulled away from the center rail and body of the car.
We allow further staging instructions for entrants, they must be in the shipping box with car/cars on race day.
Entrants that are live have the "option" to stage there own cars.
2 runs in each lane with the lowest total average time the winner.
No running, touching, or stepping over the track.
No touching any ones car. (other than to stage own car)
Must conduct yourself in an orderly manner.
**Race Requirements **
Car Dimensions [/u] [/size]
Wheel Base : You can relocate the wheel base with respect to the wheel wells of the car body,
with a maximum wheel base of 5 1/2" ...
Height : Not to exceed 2 3/4" inches...
Length : Not to exceed 8" inches...
Width : Not to exceed 3" inches
Weight : Not to exceed 6 ounces (170 grams)
Center Rail Height : 1/4" inch ( 7mm ) *
Center Rail Width : 1 5/8" inches (4.2 cm) *
*Center Rail height and width are the actual measurements of the track, so you must build the car to clear these dimensions for the wheels to ride on the track, outside of the rails not on the inside.
The main part of the body must be made of Wood and/or be covered with a 1/24th or 1/25th scale
plastic model kit. Additional materials maybe added as long as they meet the Car Dimensions above.
1. Pinewood Derby Kits
a. Jewkes Engineering (The "Edge" Door Slammr Custom Speed Kit)
b. BSA wide wheel
c. Pine Car wide wheel (other axles required see Axle section...)
d. Pine-Pro (RA wide wheel)
e. Awana wide wheel
f. Use of other Wood to make your own body and/or frame.
2. Axles
a. Axles, must remain the diameter size range of .084 - .096.
b. Aftermarket Axles are allowed. As long as they meet the diameter requirements.
c. Axles may be polished or reshaped to allow for faster wheel spin.
d. No Bearings or sleeves attached to the wheels, Axles in anyway.
e. No axle can be angled or bent no more than 45 degrees.
f. Must have 4 separate Axles.
g. New cut Axel slots or drilled holes are allowed.
h. Pin or solid rod one piece Axle types are not allowed.
3. Wheels
a. Wheels may be sanded and polished or lathed to remove mold casting burs and surface imperfections,
to true the roundness of the wheel and to flatten the tread/contact surface.
b. No additional weight reduction is allowed.
c. The tread/contact surface of the wheel must remain flat as humanly possible.
d. No Angling, Reshaping, Canting, Rounding, Crowning, Tapering, H-cutting, V-cutting, Narrowing the outside of the wheels and/or tread surface. No removing of the Letters on the wheels.
e. No inside modifications are allowed. ( Other than coning the hub surface that touches the car body.)
f. No shaving down, reducing the size of the shaft of the hub.
g. No cutting and piecing multiple sets of wheels together.
h. The small detailed marks on the edge of the wheels must still remain visible around the entire circumference.
i. Truing and polishing the axle holes is allowed.
j. Drilling additional holes into any other parts of the wheel is not allowed.
k. Car must have at least 4 wheels.
l. The axles and wheels must be attached to the side of the car body/frame
and wheels must be set under wheel wells.
m. Each axle placed through each wheel and then attached to and only mounted in the axles slot
or drilled hole at a maximum of 5 1/2" wheel base in the wheel well location of the car body.
n. Wheel tread surface must be completely under the fenders.
o. There must be no less than 1 5/8" clearance between the inside edge of the wheels.
p. No Bearingsor sleeves attached to the wheels, Axles in anyway.
(remember the tracks center rail is 1 5/8" wide so make sure your wheels clear this width...)
4. The following Modifications are Forbidden
You can not use...
a. Springs
b. Magnets
c. Starting or finish line devices or propellants.
d. Electronic or lighting devices
e. Glass or extremely fragile parts
f. Paint that rubs off, smudges or extremely sticky
g. Loose objects on car
h. Moving weights or parts (other than the wheels)
i. Bearings
j. Sharp objects on the bottom of car. (We do not want any damage to the rubber stopping pads)
k. Any part of the car to go beyond the starting peg.
l. Sticky substances or anything on the car to aid with the starting peg.
m. Axles and wheels must not be attached to any device that mechanically or other wise alters rotation and spin.