1.0s Chassis Frame and Cage

Chassis  Any American made production chassis with a minimum stock wheelbase of 101- 110" inches, from 1972 to current date. No truck bodies are allowed. Chassis may not be altered from stock appearance unless noted in the rules. No alteration/moving of chassis suspension mounting points or spring locations Cross-member may be only altered for engine clearance. Reconstruction of chassis permitted from steering box forward . Reconstruction of chassis permitted from center of rear wheels back. Construction must resemble stock placement. Minimum 2" X 3" steel box tubing .083 thickness may be used. No bars may travel under rear end housing. Wheel base must stay to specifications of chassis used with 1” tolerance. The use of X-Y-G Mandrel bend Johnson chassis with no modifications is permitted. The use of  DCA racefab as manufactured  Front mandrel bend clip assemblies from Johnson & DCA may be used on stock metric chassis. Uni-body chassis may use sub-frame connectors. Only bolt in types allowed that travel straight back from front snout to rear leaf spring brackets. Tubing may be welded across connecting subframes, No part of roll cage can be welded to sub frame connectors. Sub-frame must be removable.   Ground Clearance  (with driver) Chassis 5 inches Fuel Cell 10 inches Exhaust 3 inches   Crankshaft height / placement 13 inches Centered between frame rails +/- 1.0" Motor Mounts: All engines must be in stock location for chassis being used. Steel motor mounts may be used. Mounts must remain in stock location. Notching of frame for fuel pump clearance is not allowed No engine plates. GM chassis will use distance between centerline of bolts outlined, forward most fuel pump mounting bolt and the upper idler-arm to frame mounting bolt; measurement 8.75” +/- .25” so long as bolts are deem to be in stock location.

Cage Main Cage ( Halo, Front and Rear Hoop, Ear bar and Door bars) Must have a four point symmetrical structure that fully extends from left to right equally. Tubing -1and 3/4 inch with minimum 0.90 wall tubing Main Hoop Must be one piece continuous length welded  perpendicular to the top of the chassis or floor on to 1/8" plates 90 degrees to frame rail Lower ball joint to main hoop can be no more than 83.5 inches. Roof  Bar Must extend forward from the outer edges of the main roll bar May not be offset to the chassis. Must follow the contour of the windshield as it bends across the front Must maintain a close distance to the roof.   Brain bar must be added Center windshield bar mandatory One piece of tubing running diagonally or perpendicular between halo Must be centered   Door bars 4 driver's door bars Must be horizontal and equally spaced must have six vertical bars connecting each horizontal bar. The placement of left side driver support plates is mandatory. Solid steel plates of 0.125-inch (1/8”) must be either inside, outside or between horizontal door bars. Door plates must be bolted or welded in place.   4 Right Side door bars required Padding All roll cage bars must be padded, anywhere within driver's reach.   Bumpers Bumper heights must be 16" to center front and rear. Stock OEM bumpers must be used if exposed and be capped if cut, and connect to body. Non OEM  Covered Single tube - front conforming to nose Single tube - rear conforming to bumper cover Must contour to body No sharp edges. No bumper over riders on front or rear Subject to official approval for design and quality   Jack post not allowed   Weights Right side total minimum 1450 lbs. Driver must be positioned with full gear Ballast Lead only Mounted Securely Minimum 2 1/2 diameter bolts Solid block form Painted White Car number must be clearly marked Within 3 inches of Main Frame Rails  3" will be measured from rear frame in front of rear wheels. Ballast behind rear wheels must be mounted off 2" x 3" steel box tubing supported off frame. No weight is permitted inside driver's compartment of car. No weight shifting devices.