I have the aeroforce guages now, but I didn't have them then, so I am not sure. I was very surprised I never went to limp mode, but I also didn't go to events in July and August here in St. Louis when it is 90+ and high humidty. Now the track is shutdown so I have no where to go. It's 5+ hours to the closest road course.
When i went into limp mode a few years back it was about 90*+. It very rare to go onto limp mode under 90*.