Thanks for that info. Do you still know when samurai posted this reportage?
If the wikipedia power number of 395 kW (
http://de.wikipedia.org/wiki/Toyota_TS030_Hybrid ) is correct, then from a torque of 400Nm we could calculate
2*Pi*f = Power / Torque = 395000 W / 400 Nm = 987,5 1/s, that would be a rpm of 9430.
If i calculate power as P = 0,5 * f * p_av * V (0,5 because of the 4 stroke engine, p_av the average pressure of ~15bar=15*10^5 Pa for NA race engines and V = 0,0034m³ being the displacement), this would give a frequency of 154,9 1/s or a rpm of 9294.
So my calculated of 5200rpm was probably wrong due to the sound quality of the video, and the correct max rev should be in the region of 10400rpm.