Originally Posted by
Hasselhoax
FIA appendix J art. 279 (RX)
RALLYX supercars
- Up to 2.058 litre supercharged 4 cylinder petrol engine (2.33 litres for diesel).
-The block must derive from the same reg. trademarks original block as the cars original bodywork (If car looks like Citroen then block needs to be Citroen)
- 45mm restrictor (power around 600 BHP)
- Minimum car weight depending on engine size
- Bigger brakes than WRC cars if one wants, adjustable brake balance in-car
- Free rim size (max 18")
- Cars must have sprung suspension, other than that it's free (you can use hydropneumatic suspension if you like - cool!)
- Free positioning of water radiator(s) (eg. mounted in the rear)
The RALLYX cars have much less regulations stipulating what can and can't be done. And you have to bear in mind the fact that RX have to withstand a certain amount of bashing. So many differences between the two categories comes from that
Note when I say "free" I mean the regulations are free
Feel free to fill in here and of course expressing your fury over my so called knowledge.