Yup it’s that time of year when some sort of formula determines how each SCCA Autocross will compare to another class. After a full year of stock class cars being on street tires there have been some changes that should make things more accurate. CSP, STF and SMF also had some rather large adjustments. Also of note is the addition of a new Street Touring class, STP.
Stock Classes
SS
0.835
AS
0.833
BS
0.826
CS
0.819
DS
0.811
ES
0.807
FS
0.814
GS
0.806
HS
0.798
HCS
0.817
Street Touring
STF
0.809
STS
0.832
STX
0.836
STR
0.841
STU
0.845
STP
0.837
Street Prepared
SSP
0.872
ASP
0.865
BSP
0.863
CSP
0.867
DSP
0.855
ESP
0.852
FSP
0.840
Race Tire
SSR
0.860
Classic American Muscle
CAM-C
0.839
CAM-T
0.834
CAM-S
0.848
Karts
KM
0.954
JA
0.878
JB
0.842
JC
0.734
Prepared
XP
0.907
BP
0.883
CP
0.864
DP
0.879
EP
0.871
FP
0.880
HCR
0.838
Street Modified
SMF
0.861
SM
0.870
SSM
0.882
Modified
AM
1.000
BM
0.966
CM
0.916
DM
0.919
EM
0.920
FM
0.926
FSAE
0.982
For historical numbers visit Rick Ruth’s PAX/RTP archives on solotime.info.
Comments
comments
Autocross, featured, PAX Index, SCCA, Solo
