They are illegal in many classes. I know they are in the Super classes (what we run), and I believe they are in the fuel classes, but I can't find my rule book...
They are illegal in many classes. I know they are in the Super classes (what we run), and I believe they are in the fuel classes, but I can't find my rule book...
No they don't. Only at 660 and at the finish line. They can only extrapolate the other interval MPH using their data recorders. They are already going 273-280at 660 feet and the next interval to 1000 feet is 20 feet longer than the 1000 to 1320 interval. In the UK the interval is set @ 990 feet (3/16 mile) which makes more sense as it is halfway between 1/8 mile and a 1/4 mile.
The tracks timing equipment only gives MPH at 1/2 track and the finish line.
Nitro cars have front wheel speed sensors.
I'd imagine it would be illegal in the super classes though.