In addition to the normal classes, the local SFR region offers some local-only classes. You’ll notice a lot of “indexed” classes. We have these to create a more competitive environment. Rather than have lower-attended classes, it creates a large field of people to compete against each other.
Complete List of SFR Region Indexed Classes
|
SFR Class |
Index Classes |
|
AS |
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DS |
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SSC |
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SST |
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STR |
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STU |
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STX |
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S1- |
SS, SSR |
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S2- |
BS, FS |
|
S3- |
CS, ES |
|
S4- |
GS, HS |
|
ST2- |
STH, STS |
|
SMP- |
ASP, BSP, BSPV, CSP, DSP, ESP, FSP, OSP, SSP, SM, SMF, SSM |
|
STM- |
Same as SMP but with 200+ TW tires |
|
M- |
AM, BM, CM, DM, EM, FM |
|
P- |
BP, CP, DP, EP, FP, XP |
|
CAM- |
CAMC, CAMS, CAMT |
|
XS- |
XSA, XSB, XSS, EV |
CAM – Classic American Muscle Indexed Class
The CAM- indexed class contains: CAM-C, CAM-S, and CAM-T.
OSP – Open Street Prepared
This is a catch-all style class. There are only two real rules: car must’ve been registered for legal road use at some point, and the tires must be D.O.T. legal. For more specifics, please see the Supplemental Regulations.
P- Prepared Indexed Class
The P- class is an indexed class that groups together the classes: BP, CP, DP, EP, FP, XP.
SM – Street Modified Indexed Class
The SM- class is an indexed class that groups together the classes: Street Modified (SM), Street Modified FWD (SMF), and Super Street Modified (SSM).
SP – Street Prepared Indexed Class
The SP- class groups together the classes: ASP, BSP, CSP, DSP, ESP, FSP, OSP.
STM – Street Tire Modified Class
The STM class is an index class designed for Street Prepared and Street Modified type cars who want to run on street tires with 200+ treadwear. For more specifics, please see the Supplemental Regulations.
XS – Indexed
The ultimate competition class, indexed. All cars can run here in their full prep and compete for the best indexed time.