Thursday, March 31, 2011

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

Friday, March 25, 2011

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.

Friday, March 11, 2011

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...