when is a roll cage needed

It also depends on the state.


PA didnt require a helmet until 13.99 or faster. NJ required it for all times. Of course that could be just helmets.

I would check out the tracks website. They should have a link to what whats required.
 
even if NHRA does not require it for you speed then i still would suggest to have at least a roll-bar and a helmet. If you are running it at any track once you pass 60mph then some serious damage can happen. I suggest always having at least those two.

even a roll-bar like this will work great in the case of a roll-over at the track.

2003mach1_006.jpg


Jason