20110330 Speed Records

Tonight, March 30, we started recording the top speed for each driver/car.

These were actual speeds recorded on track at the end of the long straight section.

20110330 Best Laps To Date by Driver/Car

Rank	Driver	Car	Lap Time	Date	Race	Lap
1.	Daniel	DG03LM	6,494	Feb 16, 2011	12	5
2.	Fabio	FM03LM	6,498	Feb 24, 2011	11	18
3.	Daniel	DG03MM	6,685	Mar 30, 2011	7	18
4.	Fernando	FF03LM	6,717	Feb 24, 2011	16	4
5.	Fabio	FM24MM	6,782	Feb 03, 2011	6	23
6.	Fabio	FM03MM	6,878	Feb 24, 2011	7	16
7.	Fernando	FF03MM	6,989	Feb 24, 2011	6	25
8.	Julio	JP03LM	7,022	Dec 22, 2010	10	32
9.	Julio	JP03MM	7,054	Dec 22, 2010	5	18
10.	Fabio	FM02MM	7,185	Oct 13, 2010	6	19
11.	Clovis	CM03MM	7,199	Feb 03, 2011	17	17
12.	Clovis	CM03LM	7,326	Nov 16, 2010	10	23
13.	Daniel	DG02MM	7,757	Nov 16, 2010	3	10
14.	Fernando	FF02MM	8,029	Nov 03, 2010	8	29
15.	Roberto	RH03LM	8,601	Oct 13, 2010	14	18
16.	Roberto	RH03MM	8,670	Oct 20, 2010	7	14
17.	Clovis	CM02MM	9,189	Nov 03, 2010	2	1
18.	Roberto	RH02MM	9,261	Oct 13, 2010	5	13

2010 PNWC GT Mod CDFs

These are the CDFs - Cumulative Probability Distribution Functions for the lap times registered in last year's PNWC finals for the GT Mod category.

On the horizontal (x) axis it shows the lap times, in seconds. On the vertical (y) axis it shows the percentage of laps completed in less than a given time.

For example, Chad (the green curve) was able to complete 90% of his laps in 11.72s or less. That is, he completed 90% of his laps in a time no grater than 10% of his best lap (10,65s).

At the same time, Cristian (the dark blue curve) was almost as fast as Chad in terms of his fastest lap (10.73s vs. 10.65s) but could complete "only" 78% of his laps in 11.80s or less (which is 10% more than his fastest lap).

We have been playing with this type of analysis for our own times and it has been useful in understanding the impact of different set ups in car/driver performance. For example, we have done the curves for running with different tires, front suspension springs or T-bars. Obviously, the differences in performance are a result of the overall set up, but the curves may help understand in a more "scientific" way the impact of individual changes.

There is some statistical foundations to these curves, but I won't bother you with them. The analysis is done in Excel, from the data generated by Zround.

New 126 Pitch Gear from PN Racing

PN Racing just announced the release of ultra fine pitch differential gear. Pictures and info are from their facebook page. 

According to PN Racing these parts will be available on March 11, that is, today! I guess lines at Kenon are going to be longer than at Apple stores today...