Car: RAY F1600 Fixed Setup iRacing
TSUKUBA TURN-BY-TURN DESCRIPTION BELOW
Turn 1: Entering in 3rd, downshift twice to first. Use the uphill section on the right for the braking zone, and turn in before you crest over the hill to point the car toward the corner - take a late apex, but do not 'V-line' the corner. Begin full throttle around the apex and allow the car to track out to the left
Turn 4: Entering in 3rd, downshift twice to first. Bring the car to the right side of the track near the turn 3 apex, begin braking just at the apex of the turn 3 curbing, and bring the brakes into the corner close to the curbing, but not all the way to the apex. As for the turn strategy, once the car is beside the turn 3 curb for braking, begin to move the car from the right to the left, using the banking near the curb to help the car corner faster. Apex late, and apply throttle just after the apex, allowing the car to track out to the right.
Turn 5: Once the car is at the exit cubing, move left to have the widest possible arc through turn 5. Apply a small amount of brake using the hay bales on the left as a reference, just to get the car to turn in, and take a geometric apex, using the banking near the apex curbing to assist cornering speed. Track out left on the exit, with the throttle planted flat all the way until turn 8. The next couple of corners are flat, just standard outside-inside-outside, until you approach turn 8.
Turn 8: Entering in 3rd, downshift twice to first. I begin braking where the grass on the left side straightens out, and I look to the right side curbing for a late apex. I begin turning in just before the front of my car passes the curb, this steering path is closer to a 'V-line' but still not a true 'V' since a V-line would but essentially you're decelerating your steering speed - a crisp initial turn-in with a gradual release. Once again, use the inside banking near the curbing to assist your grip and trajectory. You don't have to take the corner tight all the way to the end of the inside curbing, just straighten out as soon as you can, applying that throttle as soon as you hit that late apex - the car can do it flat without slipping since these fixed setups are more understeer prone as long as you don't trail brake too aggressively.
Turn 9: Entering in 4th gear, from the left side of the track, use a bit of brake pressure once you're beside the hay bales on the left to get the car to turn in, and downshift into 3rd. Initially, I place my car about a car width away from the left side of the track, and I aim to gradually apex late. This car is good at cornering when the front tires are weighted, but in this high-speed corner, you won't have enough front-end grip to take the shortest path, so instead I choose the path that allows me to throttle flat sooner. By apexing late, just a car length before the end of the inside curb, you can get on the power sooner and then allow the car to track out all the way left, using as much of that exit curbing as you can. You won't get an X for driving on the green-painted runoff, so use it if you need it.