For easier reference I'm copying the relevant information from previous years Indy events here, so nothing should be missed by anyone.
A reminder of the rules for everyone who is going to race. Rolling start with pace car: The game will show on-screen instructions as we start the pace laps. The race start will have 2 pace laps behind the pace car, after lap one if we are all in the correct starting order, when the pace car crosses the line it's lights will go out. This signifies that we will go green at the line next time around. If the pace car lights stay on we need to do another lap. The main reason for a failed start is cars being out of order. Once the pace car pulls off after Turn 4 into the pit lane , stay at pace car speed until the green light comes on. No hanging back to take a run at the car ahead or increasing speed before the green light. Cautions will be on so the pace car will come out whenever the yellow comes on. Slow down and be ready to form up behind the pace car. The game will give on screen instructions as to where you need to be and who you should follow. The Pits will be open to lead lap cars ONLY the first time by, then open to all on the next pass. You will see the X for pits if they are closed to you. The penalty for entering closed pits is a drive through. The server will be set for Private qualifying with a total of 6 laps, which includes the outlap and inlap, so only 4 timed laps are allowed in total. Exceeding this will require you to start the race from the pit lane. If you crash during your qualifying and you want to run again, if time allows, then you must drive back to your pitbox. You can NOT USE ESC to return to the pits. If you do you must remain there as your qualifying session is OVER. PIT STOPS When making a pit stop under green lap running, you MUST use the pit entry lane which starts before T3. DO NOT slow down in T4 and enter the pits from there. However under a Yellow caution period you may enter the pits after T4. Rejoining the track when exiting the pits must be done by merging carefully after T2 onto the back straight, not between T1 and T2. Restarts after Yellow Do not pass the car ahead on the LEFT before the start/finish line otherwise you will receive a penalty. It is allowed to pass on the right if the opportunity exists.
To avoid issues with results processing, due to there being two Classes of Indycar including the skin pack, please make sure to select your car from the skin pack. I've run cars from both skinpack options back to back and any car in the Indycar 2014 v1.65 pack does not have adjustable fuel mixture, unlike in the default S397 Indycar. However my testing showed that the additional skinpack cars are a few tenth's quicker per lap compared to the defaults even without mixture adjustment. My recommendation then is to only use a car from the skinpack. Remember when selecting your car to go into the Customise screen and select the Indycar configuration and 119" wheelbase options for the best performance.
Might also be a good idea to call when entering the pits in case someone is drafting and get caught out when the car ahead slows suddenly. "Slowing to Pit" is set by default to the Chat 1 key which is on Keypad #1 key.
The server will be configured the same as it will be for the race with both Tyre Wear and Fuel Useage at x2. Private Qualifying will be used, consisting of 4 timed laps, 6 laps in total to include an out-lap and and in-lap. Before and between the two tests the server will be running for online practice at anytime.
If you collect a penalty for anything and the track is Yellow and the sim instructs you to enter the pits, then even if you are not on the lead lap you must comply. It's possible that the penalty will not be cleared and you will still need to take it again, until it clears. This is caused by rF2 not being able to handle the situation of penalties under yellows correctly. If you get bitten by this then it's tough luck.
The server is presently set to use the Brickyard layout because its pit entry line is before the pit wall starts, rather than quite a bit way past it in the Oval layout which can cause problems/penalties when pitting under Yellows.
I seriously recommend those members who are entered for the race spend some time getting some laps in and familiarise themselves with the track, pit entry/exit, tyre wear etc. If you are not familiar with oval racing or have not run one for some time, please do not turn up on race day asking questions about setup, fuel requirements, pit-stops, yellow flag running etc. etc.