• Only 1 X Downdraught carburetor with restrictor plate (19mm and 23mm holes)
• Max 14” (road legal) tyres with 185mm tread width
• Very little modifications (e.g. diff lock) allowed.

1660’s

• Any original saloon 4 Cylinder (max) 1600cc 8 valve car available in South Africa

• Engine capacity may be increased to 1660cc max
• No space or semi-space frames
• Very limited modifications allowed
• 40mm side draught carburetors allowed. No fuel injection
• Max 15” (road legal) tyres with 205mm tread width. No slicks or semi-slicks
• No wings allowed

 2.1 liter (8 valve class)

• Any original saloon 4 Cylinder (max) 2 100cc 8 valve car available in South Africa

• Space or semi-space frames allowed
• Engine capacity may be increased to 2 100cc max
• Reasonable modifications allowed
• Normally aspirated engines only
• Max 48mm side draught carburetors or fuel injection allowed
• Max 15” (road legal) tyres with 195mm tread width. No slicks or semi-slicks
• Wings allowed

Hotrod Class (16 valve class) and Super Hotrod Class (Rotary and Turbo’s)

• Any 4 Cylinder or Rotary/Turbo (SHR) Engines 
• Space or semi-space frames allowed
• Engine capacity may be increased to 2 450cc (16 valve) or 2 750cc (8 Valve) or Rotary / Turbo engines (SHR)
• Any carburetors or fuel injection allowed
• Most modifications allowed
• Max 15” (road legal) tyres with 205mm tread width. No slicks or semi-slicks
• Wings allowed

Classic V8 Class

• All road going 6 or 8 cylinder cars older than 15 years
• Only RWD - 220KW max
• No turbo’s, original carbs (or 1 downdraught)
• No Gasflowed heads, only standard cams allowed
• Wings allowed
• Very limited modifications allowed

 Modified V8’s (“American Saloons”)

• 6 or 8 Cylinder Body, Space frame or Semi-Space frame cars

• Almost all modifications allowed