While aluminum is more expensive, the weight savings was likely worth the effort. Years ago, when it was allowed, JR ran an aluminum bash bar on the front with a secondary steel frame behind it. The major down side is the added weight and complexity. Dual bar systems are useful for oil pan and frame rail protection and a rigid mounting point for bumpers. A remedy to this would be to curve in the end piece so that the tire would hit a rounded edge of the bar instead of the corner.įrequently, drift cars run a dual bar system. The design above has the potential to puncture the tire in the event of an impact. Most basic bash bars are a single bar that goes in place of the OEM bumper. Doing this allows easier replacement and more crush area. One for the bumper, and one to replace the cut off frame rails. Many pro teams run 2 separate crash supports. This gives more engine bay space and more area to crumple without transferring the impact to the main chassis. Many pro-am drivers and all pro drivers adhere to their rule books to cut off as much of the frame rail as possible to add a larger crash area. Most general drifters replace the front bumper with a bash bar that mounts to the stock bumper. Increased air flow (theoretically), added jack points to the car, lowered weight, custom mounting brackets for body panels/lights, and added space in/around the bumper area. Secondary PurposesĪlternatively, bash bars have several other benefits. In the event of an impact, a new bash bar can simply be bolted on or the old one can be repaired if needed. The aim of this is to absorb the impact on a part that can be quickly replaced, instead of tweaking the actual body of the car. The main purpose of a “Bash Bar” is to provide a replaceable, bolt on crush area for the inevitability of front/rear contact between cars. As usual, this article is written from my point of view and is limited to my current level of knowledge.
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