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Old 09-23-2012, 09:25 PM
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SVXRide SVXRide is offline
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Re: East Coast-based 24 Hours of LeMONS/CHUMPCAR World Series SVX Race Team??

Last input for the night.

Roll cage requirement for LeMONS:

3.1: Rollbar and Structure: Professionally made full rollcage required. A poorly built, improperly mounted, or badly engineered rollcage will keep you from racing: Don't show up with crap! Cages originally created as bolt-ins will not pass without extensive modifications; these mods usually cost more time and money than just starting with the right weld-in cage. At minimum, cage must include: Full front and rear hoop, appropriately braced to each other along the roofline (halo type and side/downbar type are also acceptable); two driver-side door bars (X-design is acceptable); appropriate main-hoop backstays with no bends, located as close to 45 degrees from horizontal as practical; one main-hoop diagonal; appropriate spreader plates and gussets; complete 360-degree welds at all joints, including all car-to-cage joints. Each major load-bearing member must be formed from a single, continuous tube. Shoulder-harness bars are necessary for proper shoulder-harness mounting in nearly all applications (the harness-to-bar attachment point must be between zero and 15 degrees lower than the harness's seat-entry point). Dash bars are very strongly encouraged. On all sides, all drivers' helmeted heads must be at least two inches inside the area enclosed by the cage.

3.1.1: Rollbar Tubing and Padding: Minimum tubing size for cars weighing under 3000 pounds as raced is 1.50" x .120" or 1.75" x .095". Cars weighing over 3000 pounds as raced must use a minimum tubing size of 1.75" x.120". Properly bent, racecar-grade and -quality tubing is mandatory: no stretched or crushed bends allowed. DOM mild steel is very strongly recommended over ERW (seamed) tubing.
3.1.2: Don't understand any of the above? See where it states "professionally made." You shouldn't be doing this yourself.
3.1.3: All roll cage tubing must be padded with high-density rollbar padding wherever a driver may contact the tube--head, knees, elbows, etc.
3.1.4: All attachment points on the vehicle must be selected and reinforced as necessary so that, in an accident, the cage will not punch through, tear, or grossly distort the attachment point. Spreader plates of at least 24 square inches; backing panels; gussets; and/or other reinforcing elements are generally required to meet this goal. Cages mounted to rusty, thin, under-supported, or otherwise stupid attachment points will flunk tech immediately.


Dave/Ben - how does this compare to what you had welded into the Racer?

Bill
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