Take a look, if you haven't seen them already, the cars that are running in the F.A.S.T. classes. These guys are running low 10s high 9s on factory type 7" wide bias ply tires!
Pretty awesome to watch too.
How can this be? I know the rules about the tires but something doesn't add up.
Firestone Wide Oval (the tires that came from the factory on the fastest cars in F.A.S.T. racing) are "S" rated which means that they're only approved for 112 mph. Many cars are running well past this. The fastest cars in this class are evidentially running ~140mph! No way in hell would I go 140mph on a tire that isn't made to go faster than 112.
Are these people absolutely insane or is the rating known to be falsely low? It's one or the other...
