TN_Tuxedo, you will have so much fun, you will be happy you did the race. I've raced three 24 hour events with 5-6 member teams in the past and I've gotten to know a few individuals who have raced the Ironman. Zero_It and larouche bring up all the important points, so I'll just second them.
Pit Crew is essential, you won't be able to think much especially when you get into the night hours. Have a calculator, notepads, stopwatch for your pit to keep track of your lap times. Walkie Talkies for your crew to speak to each other should one be at a checkpoint, etc.
Plan out your food choices, meal times. Bring energy food like red grapes and protein bars, etc. Uber hydrate the day before the race.
Fresh riding gear feels SO GOOD. You don't want to be putting back on muddy or sweaty/wet gear. Do this for your mental stamina. It WILL make a big difference.
Lighting is obviously very important! Make sure you have battery packs and backups charging for your next change, etc, don't overlook this. What bike are you racing? A stock headlight will NOT get you through, you'll need to ramp up to something more. I really like my Headhunter helmet light, it rocks. I've also used Cyclops with success, velcro'd to the top of my helmet. Some people had them get yanked off by tree branches, however, so know where your wires and cords are!
Will it get cold at night where you race? Make sure you plan for layering / warmth, as well as having the appropriate sleeping conditions. A gas space heater is necessary in your pit if it is cold. Being freezing cold is a downer!!
You should have a pit EZUP with tarping on three sides to keep out wind.
Coleman stove, lanterns, pit chairs, a small folding table, paper towels, blankets, cooking utensils, etc.
There is definitely a different atmosphere at a 24 hour event than at a regular Enduro or CC, etc. Its this huge cameraderie fest! The Ironmen competitors are held at a very high level of respect because of the sheer stamina and endurance, both mental and physical and everyone will be proud of you and cheer for you even if they don't know you. Have a great time!!
Here's a nice thread over on TT that has many other comments about preparation.
CLICK!
zero_it said:
There are no championships associated with them, so no need to get real whipped up about what place you get. Just go out, challenge yourself and have a good time.
That is true. I had to laugh anyway. ;)