BobRip
Elite Member
What do you all mean fast. It depends on the amount of lever action that you give the hyd valve. Slow to fast.
If you knew the cu in of the motor, you can figure out the rpm, with whatever flow.
For example, 8 GPM, 15 cu in , rpm will be 123, and with 20 cu in, rpm will be 92
You can also slow down the engine.