RTP or PAX index

[C4Shane]

Since there have been some questions regarding Novice Class, Tire Class, and other "RTP or PAX" index classes, here is the latest index:

2006 PAX/RTP Index

"Racers Theoretical Performance"

This Index was developed by Rick Ruth and reflects study of results from over 200 nationwide Solo II events including, the Tire Rack® Solo II National Championships, National Tour, Chicago Region, Houston Region, Milwaukee Region, New England Region, Northern New Jersey Region, Philadelphia Region, Southeast Divisional Series, San Francisco Region, San Diego Region, South Jersey Region, Subaru CenDiv Series, Tri-State Sports Car Council, Texas Region, Wisconsin Autocrossers Inc., and several others.

SS 0.840 ASP 0.852 XP 0.868 AM 1.000
AS 0.831 BSP 0.843 BP 0.862 BM 0.944
BS 0.822 CSP 0.838 CP 0.856 CM 0.909
CS 0.813 DSP 0.829 DP 0.853 DM 0.885
DS 0.798 ESP 0.828 EP 0.858 EM 0.881
ES 0.806 FSP 0.814 FP 0.863 FM 0.887
FS 0.805 GP 0.844 FSAE 0.948
GS 0.794 STS 0.797
HS 0.780 STS2 0.802 F125 0.937
STX 0.804 FJ1 0.781
STU 0.820 FJ2 0.796
SM 0.845 FJ3 (FJB) 0.830
SM2 0.854 FJ4 (FJA) 0.837

[kjenkins]

saabstory said:

SS 0.840 ASP 0.852 XP 0.868 AM 1.000
AS 0.831 BSP 0.843 BP 0.862 BM 0.944
BS 0.822 CSP 0.838 CP 0.856 CM 0.909
CS 0.813 DSP 0.829 DP 0.853 DM 0.885
DS 0.798 ESP 0.828 EP 0.858 EM 0.881
ES 0.806 FSP 0.814 FP 0.863 FM 0.887
FS 0.805 GP 0.844 FSAE 0.948
GS 0.794 STS 0.797
HS 0.780 STS2 0.802 F125 0.937
STX 0.804 FJ1 0.781
STU 0.820 FJ2 0.796
SM 0.845 FJ3 (FJB) 0.830
SM2 0.854 FJ4 (FJA) 0.837

When will I learn what this means?
Is it covered in school this Saturday or is this the stuff of pit area conversations?

[grok]

I think these are the multipliers for the Novice class times. Take your actual time, find the multiplier for the class you would have been in, and derive your competitive time. It equalizes the novices, since they're all lumped.

[jbyrd]

kjenkins said:

When will I learn what this means?
Is it covered in school this Saturday or is this the stuff of pit area conversations?

Explanation Here:
www.scca-chicago.com/solo/indexes/rtp2006.html

[C4Shane]

grok said:

I think these are the multipliers for the Novice class times. Take your actual time, find the multiplier for the class you would have been in, and derive your competitive time. It equalizes the novices, since they're all lumped.

Well, I was trying to be helpful - but it created more confusion. Grok - you are correct in how it is used for the novice class. It is also used for a number of other PAX-RTP classes (tire for ex.). We also use it to determine the "fastest driver - PAX" at each event. Follow the link Tweety provides above for more info.

[grok]

jbyrd said:

Explanation Here:
www.scca-chicago.com/solo/indexes/rtp2006.html

No explanation there that I could see.

[jbyrd]

grok said:

No explanation there that I could see.

From the page:

2006 PAX/RTP Index

"Racers Theoretical Performance"

This Index was developed by Rick Ruth and reflects study of results from over 200 nationwide Solo II events including, the Tire Rack® Solo II National Championships, National Tour, Chicago Region, Houston Region, Milwaukee Region, New England Region, Northern New Jersey Region, Philadelphia Region, Southeast Divisional Series, San Francisco Region, San Diego Region, South Jersey Region, Subaru CenDiv Series, Tri-State Sports Car Council, Texas Region, Wisconsin Autocrossers Inc., and several others.

[kjenkins]

saabstory said:

SS 0.840 ASP 0.852 XP 0.868 AM 1.000
AS 0.831 BSP 0.843 BP 0.862 BM 0.944
BS 0.822 CSP 0.838 CP 0.856 CM 0.909
CS 0.813 DSP 0.829 DP 0.853 DM 0.885
DS 0.798 ESP 0.828 EP 0.858 EM 0.881
ES 0.806 FSP 0.814 FP 0.863 FM 0.887
FS 0.805 GP 0.844 FSAE 0.948
GS 0.794 STS 0.797
HS 0.780 STS2 0.802 F125 0.937
STX 0.804 FJ1 0.781
STU 0.820 FJ2 0.796
SM 0.845 FJ3 (FJB) 0.830
SM2 0.854 FJ4 (FJA) 0.837

Okay so the letters tell me what class my car is in and the multiplyer evens out the car / tire. Since AM (A-Modified is 1.000 then these are the best cars and so the driver's time is the time). HS H-Stock is the worst car so the driver gets his time lowered the most.

Of course the most level playing field would be if we all took a spin in the A-Modified 1.000, then it would be who could drive the cousre the best.

[kjenkins]

So theoretically, my son and I could beat lagunamiata if our indexed time is better than his indexed time.

[kjenkins]

Is there a separate tire index or do the tires have more to do with the A,B,C,D,.. of each class?

[lagunamiata]

kjenkins said:

So theoretically, my son and I could beat lagunamiata if our indexed time is better than his indexed time.

Yup... in the PAX results.
Take a look at the Feb event results. You'll see a HS Mini ahead of all STS2 cars. But if you look at the RAW time, the STS2 cars were actually faster.

[C4Shane]

kjenkins said:

Is there a separate tire index or do the tires have more to do with the A,B,C,D,.. of each class?

Hmm, there really isn't a separate "tire" index if you mean for the "street tire" class we have at CCR. It uses the PAX index shown above. If you declare yourself in Tire Class, then you are in a separate group of competitors who are all running street tires across a wide range of classes.

STS, STU, STX, etc are required to run "street tires" and they compete against themselves in their respective classes.

[damnyankee]

Would declaring yourself in Tire class, supercede your eligibility in the Novice class?

[prancingdawg]

only if you failed to register as a novice.

[damnyankee]

Huh?
Ok..... I register as a BS Novice, then do I also register in the Tire class in CCR?
Do I get scored in 2 classes?

[lagunamiata]

I think you can only choose one PAX.... but PDawg may know more than me!

[C4Shane]

yup - you only get one PAX...for example, my son didn't run in Novice his first year - he ran in Tire Class (PAX is the same either way - but your class determines who you are competing against)....so, no Tire Class/Novice/Ladies PAX.....