These rules are adopted for the driver and fan safety and to promote a professional
image of Southern Slingshots. All safety regulations from the IHRA or NHRA (your
choice) rule book must be used for the Speed/Class you race in.
Any exceptions to these rules will be reviewed on a case by case basis. The decisions
will always be toward safety and the best interest of the image set forth by the
Southern Slingshots teams.
* If there are ANY questions, suggestions, please contact me at
John Ring, Director
Definition of “period correct”
If you can show us a period photo of it, or if someone who actually raced back then (we
know who you are)
can vouch for the item in question and it is safe, it will most likely be approved.
These are designations and numbers you may want to put on your car, but it is not
mandatory. Many of you have to run numbers of another racing series. These are “period
ALTERED Class Designations.
AA/FA - Blown nitro, all followed by a car number.
A/FA - Blown alcohol or Injected nitro, all followed by a car number.
B/FA Injected or Carbureted alcohol, all followed by a car number.
C/A Injected or Carbureted Gas, followed by a car number.
FED Class Designations.
AA/FD - Blown nitro, all followed by a car number.
A/FD - Blown alcohol or Injected nitro, all followed by a car number.
B/FD Injected or Carbureted alcohol, all followed by a car number.
C/D Injected or Carbureted Gas, followed by a car number.
FED / ALTERED Regulations:
Safety Regulations for the car and driver must follow NHRA or IHRA regulations.
ALTERED BODY: Must be based on popular 1960's racing styled traditional altered
body types and mailtain that basic main body. Fiberglass acceptable. Rear
fenders,hoods,trunk lids,and tops are optional.
FED BODY: Must have dragster style body covering lower part of driver's body
WINGS & SPOILERS: Permitted but should be period correct if possible.
CHASSIS: Front engine only. Must have minimum 3 inch ground clearance. See
IHRA/NHRA for chassis inspection.
DRIVER: Must sit behind engine. Center Steer only.
ENGINE: Any year motor that is the actual motor or resembles the motors of the era of
the car, American made, iron block preferred, any cubic inch. Please limit the use of
INDUCTION SYSTEM: Must be blown or injected. Carburetors permitted but must be
5.8 sec 1/8 mile or quicker.
FUEL: Gas, Alcohol or Nitromethane permitted.
EXHAUST: Must have Zoomie, weed burner, or straight pipe headers. No collector
headers. Any possible exception to the "no collector headers" rule must be approved by
the Board of Directors which recognizes a need for historical verification.
NITROUS OXIDE: Prohibited.
ELECTRONICS: Driver functions must be accomplished by driver, not by electronics.
Exceptions: Direct wired (i.e. button on steering wheel) Trans brake permitted. RPM
shifter permitted. It is requested that the shifter solenoid be hidden from general view.
Any Delay boxes or electronic units used for other types of competition must be removed
OR covered so that the racing fan does not see it. (It is an image thing)
SUPERCHARGER: 6-71 or 8-71 standard mount size blower for A/fuel, any overdrive,
14:1 restraint required.
TRANSMISSION: Any type. All shields and blankets required as per sanctioning body.
Exhibition class: These are the original era cars that may not always fit into typical race
classes. Following all the safety rules for the cars speed must be adhered to. The track
will have the final ruling.
1. SAFETY: Driver and vehicle safety equipment must meet NHRA or IHRA safety
requirements. The track will have the final say in all questions regarding safety.
Exhibition class will have to have all correct safety for the speed they run.
2. RESPONSIBILTY: It is the driver and car owners’ responsibility to insure safety
regulations and standards are met and maintained.
3. RACING SUITS: Drivers’ jackets and/or suits meeting IHRA or NHRA
requirements for vehicle and fuel required. All Blown cars or car running faster than 4.99
(1/8) or 7.99 (1/4) should have a driver suit that meet the SFI Spec 3.2A/15 or 3.2A/20
and must be recertified on a five-year interval.
4. PIT RUNNING: All race cars will have a person in the car when ever it is started in
the pits. All Blown cars or cars with a clutch system will be up on a car stand (not jacks
stands) and have some one in the car when it is running.
5. RACING LICENSE: A Southern Slingshots driver should have a Competition
license (IHRA or NHRA) for their particular class/speed. Not having the correct license
may prevent you from running certain events as per the tracks regulations.
6. MOTOR DIAPER: It is required that all Southern Slingshots cars have a motor
diaper. A NON-SFI diaper is acceptable if IHRA/NHRA does not require one.
7. FIRE EXTINGUISHER SYSTEM: A fire extinguisher system should be on all cars
meeting IHRA or NHRA requirements for vehicle and fuel required. All Blown cars or
car running faster than 4.99 (1/8) or 7.99 (1/4) should have a SFI fire extinguisher system
to be activated by the driver.
Southern Slingshots is a family based organization. We ask that every participant conduct
himself or herself in an appropriate manner. Abusive and/or violent behavior toward any
participant, spectator or official WILL NOT BE TOLERATED. Violation of the conduct
policy may be grounds for disqualification from the event.
Southern Slingshots retains the right to use any photos or video obtained at Southern Slingshots events.
In the event of ANY discrepancy, after thorough review and consideration, the decision
made by the Race Coordinator / Club Director will be considered final.
Please see Bulletin board for detailed information regarding Race Procedures, etc.