WEll,
I gues in a loose way, I do have a dog in this fight. Sorta. I am a very smaltime engine builder with most of my customer base being low buck or middle class working people who love racing and are doing this as they can afford it.
Most of these cutomers have cars that are at least well built but are built of M/S primarily becuase of the much higer cost of full C?M. Some of these cars are already certified to 7.50 and are well constructed but are not C/M. They get faced with the delima now of when their cars get quicker than the certification, to try to wing it and hope they don't get caught, or to fully update their caar to be C/M which most can;'t afford, or to buy another car either new or used that was built with C?M and can certify lower. OR just give up or make their cars to be slower.
NOW THE PROBLEM IS;
Rumers are pretty strong that even their 7.50 certifivcation is in jeopardy of getting cut back to be a 8.50 by the rules committes of NHRA - SFI, and they will have to either quit racing or just go slower.
There are tons of good cars made of M/S that are certified as 7.50. What happens to all of those guys who are running now at 7.50 to 8.40 when their cars will no longer be legal? SEll them in what will be a flooded market of other cars like them?
These guys can not afford to step up and buy C/M cars.
Besides all the financial hardship this rule change would cause, I really believe with no engineering background, to prove anything with that a well constructed 7.50 M/S car is as safe as it can get.
I know for a fact that over the years several Pro Stock cars of 4130 have had frame and weld failures. If that also happens with those cars certified to 7.50 I am not awre of any of the cars I know of breaking frames or welds breaking.
Ed