Quote Originally Posted by Rally Power View Post
At the beginning it was told that the restrictor size would vary according to engine capacity, but in June it was finally announced a 30mm restrictor for all Rally3 models.
https://www.fia.com/news/fia-announc...l-decisions-18 (on regional rally)



Dirtfish already reported that Toyota and Hyundai will launch Rally3 cars during 2021. With the rules changes it’s not known when, and if, Peugeot and Renault will announce their models; with the same restrictor for all, it’s not clear how 1.2 or 1.3 cars can now match 1.5 or 1.6 machines.
Does the engine have to be closely based on a road car engine fitted to that model or can the cylinder capacity be enlarged? If no such changes are allowed then it seems rather short sighted they didn’t do something with the restrictor size. It could be rather limiting if a manufacturer does not have a 1.5/1.6 litre engine fitted to the road going model.