Hypothetical question: In real world racing, would it be anywhere near reasonable to build and maintain a race car powered by a tiny engine with massive turbo if bigger engines were allowed in the first place? (XRR engine vs. FZR engine)

I dunno about today, but I'm fairly sure there was an era when formula one engines could be either 3 litres or 1.5 litres with a turbo, and plenty of teams went with the crazy turbos instead of the 3 litres.

Imho they should have exactly the same tire size and engine size. The different sizes in tires are very hard to balance, as one could think of. Having a 2 litre turbo engine against 3.6 litre NA with 500hp is just not realistic as these cars aren't exactly high-tech anyway.

A twin turbo might make it more interesting but the power isn't the main problem in this class. It's the tire/fuel consumption which are totally different in every model.

Quote from Hyperactive :

Imho they should have exactly the same tire size and engine size. The different sizes in tires are very hard to balance, as one could think of. Having a 2 litre turbo engine against 3.6 litre NA with 500hp is just not realistic as these cars aren't exactly high-tech anyway.

A twin turbo might make it more interesting but the power isn't the main problem in this class. It's the tire/fuel consumption which are totally different in every model.

Dingdingding we have a winner!

BMW made a 1,5 4 cyl. turbo engine that produced 1500 bhp for qualification. After the fast lap the engine blew up

Quote from spankmeyer :

Dingdingding we have a winner!

Please put the doorbell back to your pocket.

How are the educational movies progressing, btw?