New Classes vs Old Classes

[mrondeau]

Is there a way to see how drivers stacked up in the new classes?

[Gary Burch]

AX01 1.0000
AX02 1.0000
AX03 1.0000
AX04 0.993
AX05 0.986
AX06 0.978
AX07 0.970
AX08 0.962
AX09 0.954
AX10 0.946
AX11 0.938
AX12 0.928
AX13 0.917
AX14 0.906
AX15 0.894
AX16 0.883

These are the PAX values for GPX, I am not sure how they correspond to our new system.

Anyway, my time was 67.96 X 0.906(ax14)=61.57

[Kim Crosser]

I don't think those are the same in the new system, but (assuming CC13 = AX13), my time was 67.38 * .917 (AX13) = 61.787

[Mmagus]

Is there a way to see how drivers stacked up in the new classes?

Thanks for bringing this up Mark. I talked with Tom B. a few weeks back asking if there could be a way to print out the timed runs of those folks who provided their New Class rankings. He said that it shouldnt be too much of a problem to do so. I have no idea how the timing program works or even who has access to it, but I would love love to see this info. as well. Ideally it would be great to hang it up with the other timed runs at the event.

Mark

[mrondeau]

Is there a way to see how drivers stacked up in the new classes?

Thanks for bringing this up Mark. I talked with Tom B. a few weeks back asking if there could be a way to print out the timed runs of those folks who provided their New Class rankings. He said that it shouldnt be too much of a problem to do so. I have no idea how the timing program works or even who has access to it, but I would love love to see this info. as well. Ideally it would be great to hang it up with the other timed runs at the event.

Mark

The AX classes for GGR are different then our 2012 classes, therefore the PAX will be different. We also need more drivers to figure out their points and classes in the new system and input them when they register. There are a few that have done it. Of those, it's hard to tell if they are correct. There are some obvious mistakes when you look at them (RS class cars in CC16, KSS in CC16, HP in CC01 and KS cars in CC02 to point out a few) and I'm sure many that aren't so obvious.

[ttweed]

AX01 1.0000
AX02 1.0000
AX03 1.0000
[snip]
These are the PAX values for GPX

Seems odd to me that the top 3 classes have NO difference in the index (in fact in the GGR rules, there is another class called "914GT" which also has a 1.000 index). Why have 4 different classes if there is no difference in speed potential between them, according to the index? That's 3 more classes that can be eliminated.

There are also the SS indexes:
SS01 0.906
SS02 0.917
SS03 0.917
SS04 0.917
SS05 0.917
SS06 0.938
SS07 0.928
SS08 0.938
SS09 0.938
SS10 0.946
SS11 0.928
SS12 0.97

One thing that puzzles me is the spread between the fastest and slowest classes in this PAX. From AX1 to AX 16 there is only a .117 difference (1.000 - .883 = .117). In our BRI, the predicted speed difference between the fastest AR2 class and the slowest AS/S class is .184 (1.155 - .971 = .184), which is a 63% difference. It means that the predicted time differential between the slowest and fastest class winners is expected to be quite a bit larger in our BRI. They can't both be right, since presumably, we are running the same cars in our events as GGR, with approx. the same level of driver skill on average. One or the other will do a better job of equalizing speed potential between classes. I'll leave it to someone else to do the analysis of which system would do the best job of leveling performance potential.

BTW, according to the GGR index my CC13 indexed time would be 66.52 x .917 = 60.999 seconds. Erik still wudda smoked me, even if you gave him a 1.000 index...
TT

[Gary Burch]

AX01 1.0000
AX02 1.0000
AX03 1.0000
[snip]
These are the PAX values for GPX

Seems odd to me that the top 3 classes have NO difference in the index (in fact in the GGR rules, there is another class called "914GT" which also has a 1.000 index). Why have 4 different classes if there is no difference in speed potential between them, according to the index? That's 3 more classes that can be eliminated.

There are also the SS indexes:
SS01 0.906
SS02 0.917
SS03 0.917
SS04 0.917
SS05 0.917
SS06 0.938
SS07 0.928
SS08 0.938
SS09 0.938
SS10 0.946
SS11 0.928
SS12 0.97

One thing that puzzles me is the spread between the fastest and slowest classes in this PAX. From AX1 to AX 16 there is only a .117 difference (1.000 - .883 = .117). In our BRI, the predicted speed difference between the fastest AR2 class and the slowest AS/S class is .184 (1.155 - .971 = .184), which is a 63% difference. It means that the predicted time differential between the slowest and fastest class winners is expected to be quite a bit larger in our BRI. They can't both be right, since presumably, we are running the same cars in our events as GGR, with approx. the same level of driver skill on average. One or the other will do a better job of equalizing speed potential between classes. I'll leave it to someone else to do the analysis of which system would do the best job of leveling performance potential.

BTW, according to the GGR index my CC13 indexed time would be 66.52 x .917 = 60.999 seconds. Erik still wudda smoked me, even if you gave him a 1.000 index...
TT

Tom, as Mark pointed out in a previous thread, Did you take the 60 points for the 710's?

[tb911]

I'll post the CC class times as soon as I can get them from the timing computer.
They were supposed to be printed and displayed at the track but there apparently was a mis-communication about how to do so.


tb

[ttweed]

Tom, as Mark pointed out in a previous thread, Did you take the 60 points for the 710's?

Ya, those points are in there. The treadwear rating of V710s is the same penalty as the Hoosiers I have been running for the last two years. The difference last weekend was that the 710s were fresh instead of 5 years old.

They are still only 4 point tires in my FP class calculation under the current rules for 2011, but they will be 60 points under the new "CC" classification system next year. I did include that penalty in my mod points calculation for CC13 class:
Base points = 170
tire points = 0 (this is for width only--205 is the base measurement)
plus
Mod points:
engine swap = 110 pts
springs and swaybars = 40 pts
tire compound = 60 pts
LSD = 20 pts
Total = 400 pts

I haven't put the LSD in the car yet (still running an open diff at the moment) but I am including it because it will be in by the next event. The car actually pointed out at 380 for last Sat. without it. I could have taken out some of the ballast.

TT

[Gary Burch]

Tom, as Mark pointed out in a previous thread, Did you take the 60 points for the 710's?

Ya, those points are in there. The treadwear rating of V710s is the same penalty as the Hoosiers I have been running for the last two years. The difference last weekend was that the 710s were fresh instead of 5 years old.

They are still only 4 point tires in my FP class calculation under the current rules for 2011, but they will be 60 points under the new "CC" classification system next year. I did include that penalty in my mod points calculation for CC13 class:
Base points = 170
tire points = 0 (this is for width only--205 is the base measurement)
plus
Mod points:
engine swap = 110 pts
springs and swaybars = 40 pts
tire compound = 60 pts
LSD = 20 pts
Total = 400 pts

I haven't put the LSD in the car yet (still running an open diff at the moment) but I am including it because it will be in by the next event. The car actually pointed out at 380 for last Sat. without it. I could have taken out some of the ballast.

TT

Tom, that was a great drive, from 1:11 to 1:06 in the timed runs. Seems like old times...

[ttweed]

Tom, that was a great drive, from 1:11 to 1:06 in the timed runs. Seems like old times...

Ya, all it took was kicking my 200+ lb. student out of the car, changing the tires, and recalibrating my "buttometer" for the new level of grip. Instant 5 second improvement.

TT