2019 IHRA Rulebook

24 IHRA vehicle back and allow to re-stage. This is considered a “pull back” and will only be permitted one time. The starter has full control and is the only one who may pull back car whether it is pre-staged, staged or overstaged. DEEP STAGING: Is allowed but not guaranteed. The auto start system will be activated when both cars are pre-staged, so if you are staging deep you should do it in a timely fashion. Crew member may assist the entry in the pre-staging of the vehicle. Once the entry is pre-staged, crew members must be behind the vehicle and out of both competitors view. Pull Backs in the case of over staging are permitted one time if time permits. If the auto start system cycles during the pull back, the run will stand. THE FINAL STAGING MOTION, USING APPLIED POWER, MUST BE IN A FORWARD MOTION GOING FROM PRE-STAGE TO STAGE. SUPPORT GROUP COMMUNICATIONS : 2-way communication of any kind is prohibited. The use of any handeld device such as an MP3 players, ipod or phone is also prohibited on race track or any time the competitor is seated in the vehicle. COMPUTERS: Prohibited. See General Regulations for specific information. DELAY BOXES: Prohibited. DATA RECORDERS: Permitted. May be utilized to record engine RPM, cylinder head , exhaust temperature, and jack shaft sensor data. The recorder may not activate any function on the car. No sensor of any type may be used on the front wheels or spindles. Data recorders must be activated by a separate switch. The units may not display any information to the driver or remote location during the run. A tachometer that incorporates download capabilities is classified as a data recorder. GAUGES: Engine and Cylinder head temperature gauges are permitted. A tachometer meeting specific guidelines is also permitted. (See General Regulations: Data Recorders/Electronic Devices for specific information). STAGING DEVICES: Mechanical, hydraulic, electric or pneumatic staging systems prohibited. TIRES & WHEELS TIRES: Rear tires; 18” diameter x 7 1/2” wide minimum, measured at widest or tallest point. All front tires must have a manufacturer’s maximum inflation rating. Tires may not be inflated above manufacturer’s rating. All tires must be pneumatic. No solid tires. Treatment of tires in the lanes, burnout area or starting line is not permitted and tire covers must be removed prior to leaving the designated staging area. WHEELS : Front wheels, five-inch diameter minimum with a minimum spindle diameter of 1/2”. Front spindle must be able to retain a cotter pin, or use a nylon locking-type nut, Rear wheels, eight-inch diameter minimum. No modifications allowed to any wheels. TOWING Tow vehicles in the form of golf cart, three or four-wheel support vehicle is mandatory. Full-size tow vehicles prohibited. Driving of Jr. Drag Racing vehicle through pits is prohibited. Tow vehicle to be operated “ONLY” by an adult or street-licensed individual. Any time a Jr. Drag Racing vehicle is being towed, the driver must be seated in the cockpit. No passengers. The tow strap may not be attached to any point of the roll cage. It is recommended that all entries utilize a fluorescent or brightly colored flag attached to the entry any time the vehicle is being towed. Minimum height of flag is five feet. WARM-UPS Any time a car is started, whether in the pits or in the staging lanes, a qualified driver must be seated in the vehicle. ELECTRIC POWERED JUNIOR DRAGSTER Requirements and specifications for electric powered Jr Dragster vehicles are the same as those for the IHRA Jr Drag Racing with the following exceptions: MOTOR: All vehicles are restricted to a maximum of one (1) rear mounted electric motor. Motor must be mounted in conventional position. Exposed motors must have shield of .024-inch steel, .032-inch aluminum or .120-inch Lexan. WEIGHT: Minimum weight less driver 225 pounds; weight greater than 400 pounds less driver with all batteries requires SFI specification 2.7 chassis . BATTERIES: Wet (free liquid) batteries prohibited. All batteries must be securely mounted outside of and completely sealed from driver's compartment. Batteries may not