Fatigue – that’s a word you hear being thrown about a lot at endurance racing events. We know that as drivers do long stints behind the wheel, fatigue starts setting in and the lap times start to drop steadily. But the $64,000 question is how long can a driver stay out on track without compromising the performance of his/her car or the safety of the other competitors. People keep throwing around the statistic of F1 drivers having an average heart rate of 170 bpm for the 90 odd minute duration of the race. That data might be useful for a young fit F1 driver who spends the entire duration of the race on the ragged edge, but is not very relevant to the average Lemons driver who is generally older, considerably less fit, often drives longer stints and (speaking for myself) is generally well under the limit.… Read the rest
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
This is going to be a very short recap since we didnt really get very far in the race. I flew into South Carolina and made it to the track on friday. The Schumacher Taxi Service Corolla FX-16 had already been teched and looked pretty well setup. I didnt get to drive the track or the car so instead walked the track to get an idea of the flow of the track and see where our likely passing zones were. The interesting difference from previous races thing the lack of temporary chicanes, we were going to be use the full west course of the Carolina Motorsports Park with no changes whatsoever.… Read the rest
I just won the first race of the inaugural GGLC Winter Karting series. We had some 25+ folks shop up at LeMans Karting in Fremont for a fun afternoon of pizza, karting and a little competition. After a series of 10 heat races we were split into 3 semi-finals which were won by Jordan, Jay and me respectively. However because I started the lowest in my semi, I was on pole for the finals with Jordan and Jay right behind me. I knew that both of them were about half a second a lap faster than me which meant that I had no chance of beating them on pure pace.… Read the rest
As some of you may already know, Team Formula BMW finished in 10th place at the 2008 24 Hours of Lemons race at Thunderhill. Instead of the usual blog post with in-car video, I’ve tried something new with a video blog post of the off-track action. The goal was to create a mini-documentary that shows the Lemons experience as seen through the eyes of Team Formula BMW. It is a 25 minute video that goes all the way from car prep and transport, through tech and judging, ending with the actual race itself. My personal favourite is the section on the Tech Judging which starts at the 7:38 mark.… Read the rest