Busa, I didnt do a good job answering your questions.
It is not necessary to come Friday for registration and tech in. Friday is for Test N Tune and there are two session, one afternoon and one evening session
Saturday are the Qualifying Rounds. There are 3 rounds. You would have to be registered and tech'd in before Qualifying starts. Some racers register and tech in on Friday night to avoid lines on Saturday. Sunday is single round Eliminations.
If you plan to run in the Qualifying Rounds, you really need to race on Sunday - Eliminations. Otherwise is screws up the pairings.
There is a "per-person" gate fee to get in. Then, there is a fee to race which is $120.....all of the race fee goes back to our class for the payout.
Check out this site for more details.
http://www.supereliminator.com/" onclick="window.open(this.href);return false; Click 2014 SCHEDULE and go down to Super Eliminator Nationals 3 AMRA if you plan to race in August or scroll down to Super Eliminator Nationals 4 AMSNOW if you plan to race in September.
Let me know if you have any questions.