Different colors/reflectivity of vinyl would also trick the scanner into thinking it was bigger or smaller, which took a lot of thinking ahead because the wraps all had to be approved ahead of time.Ī surprising amount of time is spent optimizing the window nets, and lots of flap trickery beyond what people are aware of. The scanner would also pickup the braces that support the quarter panel/rocker even though it isn’t supposed to, so if you wanted to make the lower quarter panel bigger or smaller and still pass the scanner, you could move the brace in or out, make is bigger or smaller, or even put a couple holes in it to “lighten” it. It takes the “average” of an area to some degree, so you can often get away with having a spot that’s too high as long as there’s an area very close by that’s too low. The goal is/was always to be as close to those limits/tolerances as possible to increase downforce at intermediate and short tracks, and minimize drag at super speedways. 200” tolerance in or out (that may have changed in the last couple years, I’m not sure, and I don’t know what they’ll do with the next gen cars). There’s a “gold plate” standard 3D model car (one file for each manufacturer) that teams have to build too, with. Nascar used/uses a Hawkeye/blue light scanner to tech the cars. Major aero advantage at super speedway/plate tracks where decreased frontal area and drag is the goal. On super speedway cars, sometimes the braces (stobs) from the chassis to the noses in front of the tires are close enough that once the car passes tech and is being pushed back, someone can turn the front tires full lock side-to-side and they’ll hit and bend the braces enough to suck in the fenders. C.) Completely outside the lines, doesn’t fit the letter or spirit of the rulebook, but some of these things are also common, although some are completely novel.Ī lot of things can change between the tech building and the garage. B.) Extremely grey, very questionable, and often common. You could classify this stuff into three tiers: A.) Completely legal, just interesting and creative. Any semblance to real activities or names is purely coincidental. Just in case the original post gets deleted for some reason:
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