Mr. DeNardi, racing is all about competitive intellect, commonly referred to as 'cheating'. The most prolific winners are the most competent cheaters. They scrutinize EVERY detail and apply their intellect.
As a former contributor to 'updates' to the 'Cup' rulebook, Ifeel comfortable saying that"explicitly spelling out what is allowed and what is not" would take an additional tractor trailer to just haul around the rulebook, and a group of inspectors that would take an additional two hours to get thru inspection.
When Bill Gazaway and I had a conversation inTexas many years ago, I was seeking permission to 'update' some suspension designs that made sense from not only a safety, handling but an expense standpoint, he told me to look out the window at the suspension area where inspectors were going over a car attempting to qualify.
His comment was that if we keep changing the rules and making updates, he would have to be continually training his inspectors and expect them to keep getting smarter and smarter to keep up with the rule changes. The full compliment of inspectors did not travel to all the races. There was a core group of inspectors the travelled, but most were more local 'talent', further making CONSISTANT inspections more time consuming and difficult to standardize.
Your comment that "Cheating is not allowed in any other sport", I am assuming was made in jest.Cheating, by it's very definition is not 'allowed' any where, butsuccessful competitors in every arena are successful because they have mastered the 'art' of cheating.
If you are going to swim in deep water, life vests and shark repellant will only slow you down!
BTW, carrying lead in the drivers helmet was not originated by Jr. Johnson. You also have to modify the chin strap attachment points, and if you miss putting it in the car before taking it thru inspection, you need to take it to the car wearing a long sleeve shirt, so they can't see your forearms.(at least that's what I have been told)