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Al F.

2019 RCR #4

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Al F.

Rule reference 6.5.2


Recommended Revised Wording:

The slotting, cutting, or drilling of the front bumper cover and underlying bumper structure to provide additional cooling air to the radiator, brakes, or coolers is allowed provided that: 1. No more than 120 square inches of material is removed from the bumper cover 2. No more than 30” total width of material, measured horizontally, is removed from the underlying bumper structure. In no case may a one piece bumper structure be cut into two pieces. Additional pieces may be secured to the bumper cover for the sole purpose of diverting air to coolers for brakes or fluids. These additional pieces may not provide an increase in aerodynamic performance.


Reasoning for change:

Will provide more clarity because this is a modification that has been allowed in the past on 4th gen Camaros. Adding bits to the outside of the foglight holes helps contain/divert more air into brake ducting that fits nicely into the foglight hole and, if anything, (theoretically) hurts aerodynamics.

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Dustin M.

Here's an attempt to clear it up. Let me know what you think. I can grab a pic tomorrow.



The slotting, cutting, or drilling of the front bumper cover and underlying bumper structure to provide additional cooling air to the radiator, brakes, or coolers is allowed provided that: 1. No more than 120 square inches of material is removed from the bumper cover 2. No more than 30” total width of material, measured horizontally, is removed from the underlying bumper structure. In no case may a one piece bumper structure be cut into two pieces. Additional panels may be added to the bumper cover for the sole purpose of assisting in diverting air to coolers for brakes or fluids such as to the outside of the foglight holes on a 4th gen Camaro. These additional pieces may not provide an increase in aerodynamic performance.

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