SCCA AUTO-X
11-03-2011, 02:23 PM
#201
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PAX could best be described as a relative index of performance in autocrossing, much the same way a handicap rating is given in the game of golf. PAX indexes are based on results from the SCCA National Championships (the best of the best) each September. How strongly a class performs compared to the thirty-something other classes represented helps determine PAX indexes the next year. The following is an example showing how PAX is used at events...
The class "A Modified" is the fastest class in autocrossing; it is expected that the cars in this class represent the pinnacle of autocross-specific race car design, engineering, and performance. The class rarely disappoints! Due to its unbelievable performance the PAX index for this class is 1.000 (no handicap is given). This means that if an A Mod car runs a time of 50 seconds, it will show up on the final results as 50 seconds.
Now let's compare this to a car in "C Street Prepared", which has a PAX index of .844. A car in CSP runs a time of 62 seconds on the same course as the A Mod car, yet its time will appear as 52.328 on the final standings. This was done by multiplying the raw time by the PAX index. As a result, the CSP car finishes only 2.328 seconds (not 12 seconds) behind the A Mod car. Yes, it still lost based on raw speed alone, but it allowed the driver in the CSP car to finish much higher overall. Thus, most regions base their overall driver championship on PAX performance whereas class championships are based on raw times.
Hope this helps.
C. Carris
SS Elise
BS S2000CR
The class "A Modified" is the fastest class in autocrossing; it is expected that the cars in this class represent the pinnacle of autocross-specific race car design, engineering, and performance. The class rarely disappoints! Due to its unbelievable performance the PAX index for this class is 1.000 (no handicap is given). This means that if an A Mod car runs a time of 50 seconds, it will show up on the final results as 50 seconds.
Now let's compare this to a car in "C Street Prepared", which has a PAX index of .844. A car in CSP runs a time of 62 seconds on the same course as the A Mod car, yet its time will appear as 52.328 on the final standings. This was done by multiplying the raw time by the PAX index. As a result, the CSP car finishes only 2.328 seconds (not 12 seconds) behind the A Mod car. Yes, it still lost based on raw speed alone, but it allowed the driver in the CSP car to finish much higher overall. Thus, most regions base their overall driver championship on PAX performance whereas class championships are based on raw times.
Hope this helps.
C. Carris
SS Elise
BS S2000CR
11-05-2011, 10:44 PM
#205
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Because SCCA Hawaii has mostly cars that aren't built to the limits of the rules, and most of us aren't really at that skill level, PAX is not very accurate for us. But I still like to try for it. FTD is ok, but I want PAX. Maybe next season I'll have a car that could compete with Chris and Diana.. 
11-15-2011, 06:07 AM
#206
Join Date: Feb 2010
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Had a great time Nove 13, I uploaded videos of my car if anyone would like to laugh or give some pointers. This was my 2nd time driving. I think i did better in the fun runs than the actually Heat. Enjoy!
http://www.youtube.com/eryk702
http://www.youtube.com/eryk702
11-18-2011, 05:28 PM
#207
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Looks pretty good man, just need to clean it up a bit and get moving a little faster when you can. I shifted after the first 180 turn and stayed in second the rest of the time, you will usually find a smoother and faster run if you shift and stay in second on MOST of the courses.
11-18-2011, 05:41 PM
#208
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yeah i realized in the videos i could've pushed it a whole lot harder but when i was driving it i thought i was going to spin out. definitely going to push myself to the limit any way possible. Starting with new rims and tires =D i already have a set im planning on
11-19-2011, 02:09 PM
#209
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01-26-2012, 07:38 PM
#210
