saviour stivala wrote: ↑04 Apr 2023, 14:03
gruntguru wrote: ↑03 Apr 2023, 23:04
saviour stivala wrote: ↑03 Apr 2023, 17:06
. . . But I will repeat (my disagreement) 'Because the F1 engine (ICE) is turbocharged, shooting for peak power, the lower the turbine pressure the better. In short, if a compressor can reach full boost with less turbine exhaust gas pressure the more the peak HP output.
Correct - however the turbine (MGUH) power will be reduced and the compressor power might be increased. The optimum level of exhaust back pressure is the one that maximises self-sustaining power (crank+turbine-compressor)
So it is ok than to go talking beyond ICE crank power. SO, "However the turbine (MGU-H) power will be reduced'' Agreed. And yes, The trick is to find the optimum back pressure, the least possible the better. Although Turbine-MGU-H power has it's importance as to recovery, we were talking about ICE crank peak power. When MGU-H is being turbine powered, Crank cannot produce peak power. Whichever way one looks at it, without having good crank peak power one will be a sitting duck.
The ICE by itself could make more power itself than it does in self-sustaining mode, but the compounded power is more than the ICE could make by itself.
The peak power is the maximum of the compound engine.
An example from WW2 is the Allison V-1710-127 (-E27).
The base engine, a 2 stage supercharged V-12, could produce 2,200hp.
The V-1710-127 had an extra turbine at the back, connected by a shaft to the engine. With the turbine, the compound engine could produce nearly 3,000hp.
For the F1 PU, the ICE may produce 850hp without any assistance from the ERS and the MGUH not recovering energy.
In self-sustaining mode the ICE may only produce 800hp, but the MGUH is recovering 80hp from the turbo and sending it to the MGUK, and then transferring the power to the crankshaft. So the output is 880hp.
(Power values illustrative only.)
It seems that you are arguing that the peak power is 850hp, not 880hp. If I have misread your posts, I apologize.