[SaabJohan]

Torque decreases because of that it gets harder to reach high brake mean effective pressures at high speed; it's not because of the stroke and therefore the crankradius gets shorter as sometimes believed, the larger piston area will compensate for the shorter stroke. The difference in torque from a 3 liter F1 engine and any normally aspiranted 3 liter engine isn't therefore that large, but the torque from the F1 engine on low revs will be poor since it's designed for high speed running.