Tag Archives: dl1

Health benefits of Autocrossing

At the last GGLC autocross Alex and I decided to try out a little experiment to see how your heart rate changes during the race. We used a Polar S720i to record his heart rate, an iPhone for video and a DL1 data logger to record G-force and speed readings. I used some simple PHP magic to sync the two data files together and used the Chasecam Dashware system to create this finished video.

You can see the speed, heart rate (BPM), longitudinal G (acceleration + braking) and lateral G in the dashboard on the top of the video. His average heart rate was in the low nineties while on the grid and rises to to 101 just before the start of the run.… Read the rest

Spinning out at 95 mph

Reno-Fernley course map

I was at the NCRC trackday at Reno-Fernley Raceway last weekend when I got some first hand experience of what happens in a high speed spin. I was coming down the front straight at well over 100 mph and slowed slightly to take the esses that make up turn 1. Now on the track map they may look like fairly severe turns but in actual fact you just lift a little bit to settle the car at the end of the straight before flooring it though S bends. On this particular lap I came in a little hotter than on my previous runs and just after i made it though turn 1 (but before 1A) the back end came around and I flew off the track at 95 mph.… Read the rest