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:

2020-04-08 - Driver's Side Intrusion Protection

Can vertical bars be placed between the door sill and the lowest Nascar style bar without counting towards the "8" roll cage to car attachment points? Attached a picture for reference, not my car, just a similar example to illustrate the idea.
Bad Example

Weld a lower sill bar between the main hoop and A-pillar bar. Then weld vertical bars from the lower sill bar to your Nascar door bars. You can even weld your lower sill bar to the body. See attached picture. sill-bar.jpg
Good example

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