TASC - ITE Competition

Metric 500

Contest Purpose
Provide students who have constructed legal sized Metric 500 racecars an opportunity to compete with other students from area schools.

Vehicle Design and Construction

1. The vehicle must conform to provided rules.
2. All vehicles will be checked the day of the competition, those vehicles not meeting the specifications will be disqualified.
3. Vehicle will be powered by compressed air over a shorter track than official PITSCO rules

Race Rules

1. Double elimination Bracket Racing will be used.
2. Finalist from each bracket will be placed in the Championship Bracket.
3. A pit area will be available but you will need to furnish your own tools and parts

Specific Regulations

1. Each entry must be submitted with a full-size metric drawing of the completed vehicle. Two (2)-view (top and side) drawing with dimensions is made on paper no larger than B-size drawing paper. Drawings are developed using standard engineering practices and procedures. The drawing may be produced using traditional drafting methods or CAD. The title block includes only the participant’s “entry number”, which is assigned at registration time and placed on the entry car and drawing during check in.
2. The official distance between the start line and the finish line on the race track is approximately 50 feet
3. Vehicles will be powered by a compressed air mechanism provided by Wayne State.
4. Dragsters that do not meet the following specifications/ tolerances will be disqualified from the race:

Dragster Body

DB1: One piece, all wood construction. Any type of lamination will result in disqualification.

DB2: No add-ons, such as body strengtheners, fenders, plastic canopy, exhausts, or air foils may be attached to or enclosed within the vehicle. Fiberglass or shrink wrap are considered body strengtheners, and cannot be used on car body for any reason.

DB3: Two or more like or unlike pieces of wood, glued together, are not considered to be one piece, all wood construction.

DB4: Wood choices that could be used: balsa, bass, pine, other.

• Body Minimum Maximum

DB5: Body length 200 mm 305mm

DB6: Body height with wheels 75 mm

DB7: Body mass (completed car ready to race) 50g

DB8: Body width at axles, front and back 35mm 42mm

DB9: Vehicle total width (including wheels) 90mm

• Axles/ axle holes/ wheelbase

A1: Dragster must have two (2) axles per car, no more.

A2: Bottom of axle bearing, above bottom of car 5mm 10mm

A3: Rear axle hole from rear of car 9mm 100mm

A4: Wheelbase (axle distance apart at farthest point) 105mm 270mm

A5: Bearing, bushings and lubricants may be used.

A6: Glue may be used to secure bearings to body.

• Spacer washers/ clips

Minimum Maximum

S1: Spacer washers 8

S2: Axle clips 8

S3: Silicone or any other type of glue/ adhesive may not be used in place of wheel clips to hold wheels or axles in place.

• Power plant (CO2 cartridge hole)

P1: The power plant hole must be at the farthest point at the rear of the car, and must be drilled parallel to the racing surface to assure proper seating onto the air nozzle.

• Hole Minimum Maximum

P2: Hole depth 50mm 52mm

P3: Safety zone thickness 3mm

P4: Chamber diameter 19mm 20mm

P5: Lowest point of chamber diameter 26mm 40mm to race surface with wheels.

• Eye screws

ES1: Dragster must have only two screw eyes, per car, that meet tolerances.

ES2: Screw eyes must not make contact with the race surface.

ES3: The track string must pass through both screw eyelets, which are located on the center line on the bottom of the car.

ES4: Glue may be used to reinforce the screw eyes.

ES5: It is the responsibility of the car designer/ engineer to see that the eye screw holes are tightly closed to prevent the track string from slipping out. As with all adjustments, this must be done prior to the event check in. Any screw eye that does not meet this requirement will be disqualified prior to the time trials and will not be raced.

• Screw eyes Minimum Maximum

ES6: Inside diameter 3mm 5mm

ES7: Distance apart (at farthest points) 150mm 270mm

• Wheels

W1: A dragster must have only four (4) wheels. Two (2) wheels must meet rules W3 and W4. The other two (2) wheels must meet rules W5 and W6. All wheels must touch the racing surface at the same time. All wheels must roll. Wheels must be made entirely from plastic. Dimensions must be consistent for the full circumference of the wheel.

W2: Note to car designer/ engineer and club advisor(s). There are two different types of wheels that can be used for this event. External wheels that run on the outside of the car body design and internal wheels which are designed to run on the inside of the car body design. If the car designer/ engineer wishes to use internal wheels on the outside of his/ her car then a fastening devise (e-clip, axle retainers, push nuts) must be used on all four (4) wheels two, (2) axles even

though they are a press-on fit wheels. No glue or silicone should be used as a fastening devise for internal wheel on any body design (traditional dragster, shell car).

• Wheels Minimum Maximum

W3: Front diameter 32mm 37mm

W4: Front width (at surface contact point) 2mm 5mm

W5: Rear diameter 30mm 40mm

W6: Rear width (at surface contact point) 15mm 18mm

Repairs may be conducted by the owner of the vehicle between races if necessary, but the car must then be re-inspected before resuming racing.