Category Archives: autocross

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

2nd fastest time of the day

My prize for the second fastest time of the day at the opening GGLC Autocross of the season.

My prize for the second fastest time of the day

I ran a 53.139 and was only beaten by a race-prepped Evo running slicks. The prizes did not include the instructors times though I was actually faster than all but 3 (Jason and Alex on RA1s and Rob on slicks) of them as well. My goal for the season is to beat Alex with the added incentive that I will be upgraded to instructor if I do – seeing that I already beat his time in the morning session yesterday I am pretty confident I can do it again.… Read the rest

GGLC Autocross

Some in-car video from yesterdays GGLC autocross in Marina.

The first video is my fast lap for the day. I don’t slow enough after the slalom and understeer into a cone. I still end up doing a 40.1 (+1).

Fast lap from rnair on Vimeo.

The second video is from my last run of the day where I am sideways on at least 3 occasions. It was a slow run (41.6), but great fun nonetheless 😀

A very sideways lap from rnair on Vimeo.

The last video is Nithyas best run (46.5) of the day in the GTI. For someone who almost backed out of her first event, she is becoming very good at this.… Read the rest

3 wheeling GTI

Last weekend Nithya and I took our GTI to the GGLC Autocross at the Marina airport. The performance far exceeded my expectations and at 61.7 seconds I was actually the 3rd fastest driver in very wet morning session (the fastest Elise did a 64.x). Much of this was due to the fact that it had proper wet weather tires on, but the handling was pretty amazing – very predictable with some understeer at the limit. It did of course feel quite a bit heavier than the Elise but the direction changes were quick and chassis was very forgiving. As the track dried out I lost my performance advantage over the elises but as you can see in the photo I did manage to get a wheel off the ground 😀

3 wheeling GTI
Photo by norcalturbo

This was also the first Autcross for Nithya as a driver.… Read the rest

Recording in-car video for free

I am a great fan of in-car video during HPDEs. It is a great tool to analyze your performance and see how different lines have affected you laptimes – works even better when you have a DL1 or some other data logger. In-car video is also a great way to give people an idea of what its like to track a car and maybe even understand you keep grinning from ear to ear after each event.

However when I see the average setup (for an Elise) at an HPDE it looks to go one of two ways

1) The full on treatment: This is a full on video system that gives you the best quality video and audio and will usually record several hours without any issues.… Read the rest