Then, on Sunday morning, I left my hotel at 6:10 am (CDT) and drove 1,271.9 miles in 17 hours and 47 minutes to El Centro, California, including 8 pit stops for fuel (Average of 71.52 mph). Leaving Dallas, it stayed cool for about 2½ hours (around 70-72°) before it started to heat up. Then, it just kept getting hotter & hotter! As the speed limit in Texas, New Mexico & Arizona is either 75 or 80 mph, it was easy to roll along at high speeds, as I was being passed by many cars traveling at 90 to 100 mph.
When I installed the new engine a year ago, I changed the thermostat from a 160° to a 180°, as I need more heat up here in the mountains of the Sierra Nevada. Here's a shot of the Temp gauge as I rolled along in 100°+ scorching weather -
View attachment 38629
The temp stayed right at the normal position with no overheating. A couple of times, it moved up just below half-scale as I climbed some 6% grades at 90 mph.
As I reached Yuma, AZ, I saw an outside temperature gauge - 102° at ~9 pm. I arrived at El Centro and checked into my motel at 9:57 pm (PDT) and immediately jumped into the shower. It was a hot ride across the southwest for me with no AC, but the old Mustang just took it in stride!
I kept a lookout for Rex's old girlfriend, but alas, to no avail - Damn!