global race engine

[OldF]

]The limit on piston speed is because of possible connection rod and piston pin breakage (it's quite old approximate criteria, now there are precise methods). The force is given mainly by acceleration of piston and it's weight. The higher the speed is, the higher is the acceleration at top and bottom dead center of piston movement.

Therefore You can either have shorter stroke and higher rpm (F1) or longer stroke and lower rpm on same speed limit (speedway motorbikes).

I think this is more about mechanical stress due to the piston speed.

This

and btw pumppaushäviöt betyder nånting i stil med förlorad förbrännings effekt el. dyl.

is more close or the result of the pumping losses.

This is what I found from Wikipedia:

“Along with friction forces, an operating engine has pumping losses, which is the work required to move air into and out of the cylinders. This pumping loss is minimal at low speed, but increases approximately as the square of the speed, until at rated power an engine is using about 20% of total power production to overcome friction and pumping losses.

http://en.wikipedia.org/wiki/Engine_efficiency

[bt52b]

Anyone seen any details about the price of the GRE kit? On another site they were saying the kit to convert the production engine would be about $10k to $20k, and had to be available within six months of a manufacturer using it in competition.

[Sulland]

F1 is also to use 1600T from 2013 according to both Autosport and GP Week

This one is aiming for aprox 650 hp with 3.0 boost.

[bt52b]

Seen another article that said some GRE's + kit would cost $50k