About what is the ET that most tracks require a roll cage. Does it vary from track to track or is their a universal et? right now im required to wear a helmet, wondering when ill need the roll cage

 

I believe the NHRA requires one at 11.49 or quicker.

 

MM&FF just said it in their article about the 03/04 cobras and titled Termination that it is 11.49 or quicker requires a roll rage on NHRA rules

 

does it matter what kind, 4 point etc

 

For your car both NHRA and IHRA will require a 5 point roll bar at 11.49 (nobody ever bothers with a 5 point, they just do a 6 point).
Unsanctioned tracks may be more or less strict.
Here is a link to some NHRA quick tech
http://www.nhra.com/tech_specs/ETQuickRef.html

 

Both NHRA and IHRA do require a 5 point roll bar if you do 11.49 or lower but there are some tracks that require one if you run any faster then 11.99

 

With cars like the C6 Z06 and Ford GT capable of hitting those times stock I think they need to modify the rules a bit.

 

+1

11.49

 

im just going to try and get a test run off before they find out [&:]

 

take easy on your runs and try to run 11.5+ and on your last run, cool engine pretty good, then heat the tires, drive it like stolen.. and see what she will run at the best. then you can tell them, no need, i am leaving anyway