◊ NOTE: ANDRA will continue to review current SFI specification levels required of Group 1 categories to ensure that levels are improved through consultation and advance warning given to competitors of any changes. A crossmember and diagonal of 19 mm (3/4 inch) x 1.5 mm (.058 inch) tubing must be fitted within 152 mm (6 inches) of the intersection of the front engine mount uprights and the lower frame rails behind the driver. An X or K member of the same size tubing without a crossmember is also acceptable. The crossmember can be welded, clamped or bolted in place. The X or K member may only be welded. In the event of the required replacement of a vehicles chassis during an event the following procedures must be adhered to; a. The original vehicle is withdrawn from competition and cannot be reinstated. b. Replacement vehicle cannot be utilised by any other contestant at the same event. c. Replacement vehicle can be fully certified and must pass Technical Inspection prior to continuation of competition. d. Driver must stay within original Eliminator category and class entered.
Checkout runs for replacement vehicle are not permitted.
g. Teams are limited to one replacement vehicle action per event. h. A replacement vehicle change plus driver change is NOT permitted. Fuel: Nitromethane blends permitted. Minimum of 50% Nitromethane required. Fuel System: Fuel gauge lines in the driver's compartment must be Steel braided with Steel fittings. Refer Fuel, Fuel Systems. Head Protection: All vehicles competing in Top Fuel must have a rear rollcage shroud. The shroud must be constructed from .080 inch Titanium or Steel and must be shaped to conform to the rollcage. The shroud must be attached to each of the side bars with a minimum of three 5/16 inch (8 mm) Grade 8 bolts per side, and to the rear bars with a minimum two 5/16 inch (8 mm) Grade 8 bolts. Bolt heads must be 1/2 inch (13 mm) hex style head. Liquid Overflow: Refer Ancillary Components, Liquid Overflow. Lower Engine Containment Device: Required. Refer Ancillary Components, Lower Engine Containment Device. Parachutes: Dual parachutes with separate shroud line attachments mandatory. Refer Frame and Chassis, Parachutes”. Protective Clothing: Required. Refer Protective Clothing. Neck Collar: Refer Driver and Rider Protection, Neck Collar and Frontal Head Restraint.
e. Driver retains Qualifying Times and standings as posted while driving the original vehicle entered. Replacement vehicles can be utilised during the course of any remaining Qualifying Sessions or for the start of Elimination competition. Once Eliminations are in progress – under normal scheduling – replacement vehicles are not permitted for subsequent rounds.