logsplitter EV conversion

For hydraulics the Rule of thumb is:
1 HP is required for each 1 gpm @ 1500 psi
gpm = gallons per minute
ex: a 5 gpm pump operating at 1500 psi would need 5 hp or at 3000 psi would need 10 hp.

The Formula is; HP=PSI x GPM / [1714 x 0.85]
At the minimum you would need the operating pressure of the system and the gpm of the pump.
a schematic of the system would also be helpful also. [pump info, valve(s), relief settings, cylinder size etc]
Flow = speed
Pressure = force
you are essentially reverse engineering the hydraulic system.
Hope this helps.