Direct questions about eligibility, specifications, etc. to:
HSR Technical Director, Jack Woehrle, 803-463-5388, [email protected]

HSR General Code and Regulations
Defines the HSR policies concerning eligibility and the basic requirements that apply to all cars considered for race entry.  Included are:  Policy, Vehicle Eligibility, Driver Safety Requirements, Race Car Safety Equipment and Preparation Standards.
2023 HSR Code and Regulations (updated 01/31/2023)
HSR Standard Operating Procedures (SOP)
defines and explains the conditions and policies concerning activities on the racetrack and in the paddock.
2023 Standard Operating Procedures  (updated 01/31/2023)
Race Car Information Sheet (RCIS)
All cars that are new to HSR must have an RCIS on file to be entered and classified into an event.  Normally an RCIS is only required once or until significant changes are made to a car.  A new RCIS is required upon change of ownership.
B.R.M. Chronographes Endurance Challenge Rules
HSR Race Group & Class Class List
This document lists the Race and Enduro classes and examples of the types of cars found in each.  Note:  Group 11 has been re-configured.
2023 Race-Enduro Classes (updated 05/01/2023)
This document provides a brief description of each of the Race Groups (updated 04/06/2023).
HSR Competition Notices 
will address any new issues that have arisen.  Below you will find all notices when they are issued.
Tech Note 01/2023: Head and Neck restraints are now required for all drivers except pre-war. Details are described in the 2023 HSR Code.
Tech Note 02/13/2023: Note that Group 11 has been re-configured.
MSR1 is now P3A in Group 6.
MSR2 is now in Group 7.
GT3E, GT3F, GTU, GT4B and TCR cars are now in Group 11.
Specialty Race Eligibility
for the Sasco Sports International American Challenge, Stoner Car Care Global GT and Classic RS Cup inter-series.
2022 Specialty Races (updated 2/21/22)
2022 HSR Global GT Classes (updated 2/23/22)
HSR Street Stock Category Rules & Classes 
Eligible cars will be distributed amongst the various race groups as appropriate. Almost any factory delivered street car may be accepted if prepared within the restrictions of this category. Listings are monitored yearly for competitiveness within their class and adjusted if appropriate.
HSR Tire Specifications
lists the approved tires that are permitted for the various group, categories and models. This list will be updated on a regular basis depending on availability and suitability of new products. Please report to the Technical Director if wish to use an unlisted tire that you feel is appropriate for your make/model/era of preparation.
2023 HSR Tire Specifications (updated 1/11/23)
HSR Group 4 ~ Formula Cars  
Group 4 is segmented by era into a/b/c. These segments do not always run together. Cars are assigned to a class based on performance similarities and specifications. HSR follows the Monoposto Racing (MR) current rules and regulations.
HSR Group 8 ~ Stock Car Rules
2022 HSR Stock Car Rules   (updated 2/21/22… No changes for 2023)
HSR Supplemental Regulations
 Define the required specifications for specific Makes & Models and Series requirements. *NEW*  MAKES & MODELS ~ Specific specifications for each variation, as permitted by HSR.
*NEW* HSR Make/Model Supplemental Regulations (Work in Progress!)
(BMC-6) Mini Cooper
(BMC-8) MG-T series
(BMC-9) Austin Healey 100/3000
(BMC-10) AH Sprite Specials
(BMW-1) 1500/1600/1800/2002
(ELV-1) Elva Courier
(FMC-2) Ford Falcon/Mercury Comet (use FMC-1 regulations, as appropriate)
(FMC-3) Ford Mustang Sedans (68-72)
(GIN-1) Ginetta G-4
(GM-1) Chevrolet Corvette, 1953-62 (C-1)
(GM-4) Chevrolet Camaro, 1967-72
(GM-5) Chevrolet Corvair  (updated Jan 2021)
(GM-6) Yenko Stinger  (updated Jan 2021)
(LOT-2) Lotus Elite
(LOT-3) Lotus Elan
(LOT-4) Lotus Europa
(POR-1) Porsche 356A (1300cc)
(POR-2) Porsche 356 (1500/1600cc)
(POR-9) Porsche 911 (2.2/2.4L)
(POR-12) Porsche 911SC (3.0/3.2L)
(POR-14) Porsche 924
(POR-15) Porsche 944
(SHB-1) Cobra 289  (new 2021)
(SHB-3) Shelby GT350
(TR-2) Triumph GT6
(TR-3) TR2/TR3/TR3A
(TR-4) TR4/TR4A
(TR-6) TR5/TR250/TR6
(TR-7) TR7
(TR-8) TR8