Post by Deleted on Mar 9, 2015 23:28:09 GMT -5
I'm looking for thoughts from members that participate in Autoslalom and if you'd like to see things stay how they are with Street and Performance tire classes and using raw times or instead switch to use the PAX Index for points?
Nabs and I pulled times of some competitors in both our Street and Performance classes from the hospital Autoslalom Fundraiser (if you participated, feel free to calculate your own PAX and I'll add it to the list) and applied the PAX index to see how it would affect points. It's quite easy to figure out your class/PAX if you know the mods done to your vehicle.
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Some info on PAX:
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. Basically, the index is a multiplier, designed to compensate for the differences in car performance, thereby shifting the emphasis to driver ability. In plain English, (for example), it allows someone driving a Geo Metro in HS to compete fairly with someone driving a Dodge Viper in SS. 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.
Links to determine car class & PAX:
www.scca.com/solo/content.cfm?cid=44517
home.comcast.net/~paxrtp/rtp2015.html
Nabs and I pulled times of some competitors in both our Street and Performance classes from the hospital Autoslalom Fundraiser (if you participated, feel free to calculate your own PAX and I'll add it to the list) and applied the PAX index to see how it would affect points. It's quite easy to figure out your class/PAX if you know the mods done to your vehicle.
---------------------------------
Some info on PAX:
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. Basically, the index is a multiplier, designed to compensate for the differences in car performance, thereby shifting the emphasis to driver ability. In plain English, (for example), it allows someone driving a Geo Metro in HS to compete fairly with someone driving a Dodge Viper in SS. 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.
Links to determine car class & PAX:
www.scca.com/solo/content.cfm?cid=44517
home.comcast.net/~paxrtp/rtp2015.html