ChampCar Tech Desk

The tech desk is used to ask technical questions and is not to be used as a post race tech line or to phish for how others built their cars.
Please reference the BCCR as most questions submitted to the TechDesk can be answered by reading the BCCR.
You can download the BCCR here:

2020-03-25 - Rear glass/Lexan/Polycarbonate

Need clarification on the rear window rules. Is glass ok if taped? Is Lexan /Polycarbonate ok W/O being taped?

I am sure you used the term taped, generically but using clear packing tape is not suggested or considered compliant. It is only a temporary Bandaid to allow teams to gain a one race technical inspection waiver when teams arrive at tech without the "safety film" on the side and rear glass.
Safety film is required on all side and rear glass.

When using Lexan/Polycarbonate you do not need safety film protection but the rules do require two safety straps on the inside of the front Lexan/Polycarbonate windshield and on the outside of the rear Lexan/Polycarbonate window. See the BCCR rules (9.1) for very specific installation requirements.


9.1.1. All window and/or sunroof glass (except front OE Safety- Glass windshields) must be removed from all competition vehicles participating in ANY ChampCar event prior to the car being allowed on the race track. This INCLUDES all EC cars. 

9.1.2. For cars and/or teams NEW to ChampCar (first event), cars MAY retain original window and/or sunroof glass provided: ALL glass is properly and thoroughly taped. A ONE-TIME provision shall be noted in the vehicle logbook. This is a single event waiver. 

9.1.3. Tinted film is NOT considered legal or adequate protective tape. 

9.1.4. Rear glass may remain in the car provided it is covered by a glass safety film like 3M™ Automotive Window Film Scotchshield™ Security Series. 


Article Details

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Date added:
2020-03-20 16:04:12
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