SECTION 9 DESIGNATION: O/PM - preceded by car number. *BODY: Any year (1/24th or 1/25th Scale) passenger car or truck. All styrene bodies must be of a kit based model or dealer promo only. Resin cast bodies allowed. Molded rear wheel bubbles allowed. Front wheel bubbles or open holes in front or rear fenders for tire clearance prohibited. No connvertables, roadster, dragster, funny car, concept or 'show car" bodies. Slamming of body allowed as long as body is still identifiable from it's original origin. Body width cannot be less than 2" at any point. Rear bumper may be opened for wheelie bar clearance. *INTERIOR: Mandatory, Painted 3D driver. *WINDSHIELD/WINDOWS: Blackout windshield/windows not allowed. Kit Based, Lexan, Clear Styrene permitted. *ZOOMIES: Mandatory on all blower cars. *INDUCTION SYSTEM: Must have one of the following positioned forward of the driver's compartment: - Full top hat; styrene, resin or metal allowed. - Blower with "8-port injector injector; styrene, resin or metal allowed. - Injector stacks; styrene, resin, or metal allowed. - Pro Stock-style hood scoop; styrene, resin or painted lexan allowed. - Cowl induction hood scoop; styrene, resin or painted lexan allowed. Top hat, blower or Injectors must be a separate unit; cannot be molded or cast into body. Full top hat: Entire unit must protrude from top body surface. Blower with " 8-port" Injector: 1/4 of blower case must be above top body surface. Injector stacks: Must protrude a minimum of 1/4", measured from top of body surface to top of stacks. Hood scoops must meet minimum dimensions: Height: 3/8", Width: 7/16", Length: 1-1/4" *REAR SPOILER: Permitted; Styrene, resin, or lexan only. "Top Fuel" style wings allowed. Wings cannot be taller than 1", measured from top of roof to plane of tne spoiler. Wings Cannot be wider than the widest point of the body. No open back ends, but wing filler panel may be slotted vertically for venting. Wings may not extend beyond wheelie bar wheels. *CHASSIS: Unlimited; Motor must be mounted in an inline configuration; ball bearings allowed. *BELLY PAN: Allowed; Must not extend more than 1/4" from body at any point. *FRONT WHEELS/TIRES: Required; Wheel Hub Diameter 5/8 minimum diameter. *REAR WHEELS/TIRES: Wheel Hub Diameter 5/8, Tire Diameter Minimum diameter 1- 1/16" (1.0625"). Minimum tire tread width fully contacting track surface, 1/2" (0.500") Slitting or grooving of tread area of tires prohibited. *WHEELIE BARS/WHEELS: Permitted; Total length cannot exceed 5" from center-line of rear axle to center-line of wheelie wheels. *WEIGHT: 110 grams minimum weight. *MOTOR: ProSlot VR-eXtreme Part Number PS-4021, ball bearing permitted. *GUIDE FLAG: One guide flag per car/truck, 1 inch maximum length. Click Here: For Motor Requirements & Specifications. Click Here: For General Regulations. If there is any area of these rules which needs clarification, please contact Club (.400) Technical Director by e-mail at club400@hotmail.com.