Day 4 was the first day we had to drive and race. We started out in Pueblo and took a route through the mountains that took us over 10,000 ft. in elevation and included a checkpoint at South Park City in Fairplay, Colorado. This is the very same South Park that was the inspiration for the town of South Park in the animated TV series. The heat and altitude caused problems for both the car and myself. We had to stop several times on the way up the mountain to tinker with the fuel pumps, and by the time we got to the checkpoint it was mid-day and I was suffering from altitude sickness. We sat in a bar for a while and talked to the local sheriff, who recommended I get a bottle of breathable oxygen from the local grocery store. I did, and it helped.
After sitting for a while, we headed down the other side of the mountain on our way to Bandimere Speedway for a night of racing. I was still feeling ill from the heat and the altitude, so I just sat around until the sun went down and then made a single pass for the night. The car ran 11.20 @ 122 mph, which I considered a win and turned in that timeslip. It would mean that our goal of running a 10 at each track was busted, but we could still end up with a 10-second average if things went well from here out.
After turning in the slip, we visited the Motion Raceworks trailer at the track and got a fluid cooler and decided to plumb the return fuel through the cooler, with a fan borrowed from the transmission cooler to prevent hot fuel from being returned to the tank.