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4.11 INTERIOR 4.11.1 TRIM Where permitted by Class Regulations, door trims, dashboard crash pads and other trim maybe removed. In all cases, the areas where trim has been removed from must be either re-trimmed with a metal or composite material and any sharp edges covered. This must be done to the extent that the risk of injury to the competitor or passenger is not increased.
4.11.2 WINDOW NETS The following vehicles require either arm restraints or a window net: •
Cars quicker than 11.00 seconds (1/4 mile or equivalent).
•
Modern Street Cars quicker than 10.00 seconds (1/4 mile or equivalent).
All window nets must be positioned forward of the driver's seating position so as to contain the driver’s arms in the event of an accident. A ribbon type window net, where fitted, must be fixed between the side and top bars at the driver’s window, and must be permanently attached at the bottom edge. Sprint car triangle type window nets are not permitted to be used as an external window net.
4.12 BODY 4.12.1 AIRFOILS/ WINGS Airfoils, canards, wings and spoilers other than original factory equipment are permitted on open vehicles and power added Sedans, subject to Class Regulations. Adjustment or movement of any aerodynamic device during a run is prohibited. All devices must be securely supported and mounted. Top Fuel wing supports must comply with SFI 49.1.
4.12.2 GENERAL DIMENSIONS 40.00” Maximum Front Overhang
Maximum rise forward 24.00” of the front axle centreline
Maximum Spill Plate Height 12.00” 3.00” Ground Clearance
Altered Front Dimension Regulations
GENERAL REGULATIONS
Front Wheel
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