pulse jet engine go kart record run 2 passes

I had 2 great runs today. The first pass was 45 mph and the second pass was at least 48 mph. My eyes were watering so much from the air rushing past that’s the last speed I could see on the gps. I could have been a click or 2 higher before I came to a big hill and cut the engine off. My wife was taking the video and putting up with all the jet wash with the shots from the back. She got a new hair do out of it at least. lol The engine is holding up great so far. I just weighed the propane tank and it