all hpdes require a m90/sa90 or newer compliance helmet...all convertibles require a 4 point roll cage but coupes and sedans don't

as for autox i'm not sure what helmet req'ts are and if convertibles require a roll cage

http://www.nasaracing.net/trackday/index.shtml

Upcoming HPDEs
Sept 7/8 lowes motor speedway
Oct 13/14 vir

 

I have to say this thread has been long needed and ive been waiting for it since my arrival to han. Mike Louie is the first and obvious choice for mod, but i think those other two fellas will do a fine job as well. its about damn time!

 

You don't have to repeat the rules. I think allowing people to use M helmets also is bad.

 

I'm not sure I agree with your take on M helmets. SA helmets were designed to protect against short intensity multiple impacts, whereas M helmets were designed to protect against 1 hard, high speed impact followed by a few lower intensity impacts. With either helmet it should be replaced if it suffers any kind of heavy impact, like dropping it on the ground from standing level or [my personal fav ] throwing it into a racecar in rage.

 

the core on those is just styrofoam like bicycle helmets right?

 

The core on any helmet is high density styrofoam, yes. The outer shell is what adds the weight and takes the initial impacts before it is spread out and absorbed by the core.

 

in that sense it's kind of scary that people don't realize what they're doing... though at the end of every race i watch everyone chuck the borrowed helmets from a few feet away into the back of a trailer.

 

Yep, every impact any helmet takes just weakens the core's ability to absorb energy.

 

wow i didnt know that about helmets thanks guys,

:matt who goes to throw all thrown helmets away:

 

i saw a lot of people dropping helmets at revitup, and id be like "hey, how about not dropping that, because they have to throw that out now" and the people would get pissed off..