Yeah, I don't know how a three stop would even work. That third stop would put you behind everyone in the lead even if you didn't take fuel, and you shouldn't need another set of tires either.
The AI should be around the 1:56-2:00 marks depending on where everyone is at in the race. 1:00 lap times would be cutting the times in half! That's some otherworldly fast AI! Ha ha.
Redvette above did a one stop with the Vette short shifting (which works well with the big NA V8 it has) and using RH tires, which should hold up fairly well for a whole race if you're not pushing for ultimate fast times the whole race. You really need to be in the 1:57s to 1:58s on fresh tires to stay competitive.
As me and others have done, you can step up to the RM tire and pit around the 10 lap and 20 lap marks, but the mediums tend to fall off the pace much quicker than the hards do. When I do another fun one with the Vette, I'm gonna try for the one stop on hards.
nummer0 I read your race guide and, wow, I don't think that would work for anyone whos struggling with this. If you look around, most of those with issues are running 1:57s and above, you had to lay down consecutive 1:56s to make your strategy work, pay attention to another stop, and pay way too close attention to AI position. The reason people haven't done it, is because you literally add stress and difficulty to the mission!
I was running consistent 1:56s to 1:57s and if I didn't spin like an idiot on the third to last lap, I would have won by about 20 seconds, 8 seconds more than your race, if I hadn't spun. I still won by over 5 with a major mistake! You had to put in faster lap times to come out in a worse position with your three stop model.
I don't think too many people are going to be trying it unless they want an added challenge, and considering the nature of this thread, that's highly doubtful.