yeah yeah, nobody like hydraulic winches except for me and people will rollbacks
I still want to post some of this information over here, because i think it is useful and especially so for people running high displacement pumps.
Hydraulic motors work on flow, more flow = more speed. pressure determines at what point it will stop working or break stuff. i.e. if your stock steering pump will make 1,500 psi before it bypasses internally and flows 2.0 gallon per minute, it will move any amount under ~7k lbs as that is about the pressure drop required to move the motor, and it will do it at about 4 feet per minute, because the flow is about 1/5 the flow used for the rating (it isn't exactly linear, but close enough). This is why people say "hydraulic winches will move a house, but take for ever to get there". They cannot move faster than the flow of the pump, and they will move at that speed until the resistance pressure overcomes the circuit limit. How much flow you can slam through these motors is limited by orifice size. Line speed does change based on wraps of rope on the drum, but the motor spins the same.
Runva winch 10k uses a 3.0 cu in (50 ml)/rev motor and claims a line speed of 20 ft/min at 10 gpm flow (40lpm)
ProWinch 11k uses a 4.9 cu in (80 ml)/rev motor and claims a line speed of 49 ft/min at 15 gpm flow (60lpm)
MileMarker 9k uses a 14 cu in (229 ml)/rev motor and claims a line speed of 10.5 ft/min at 3.5 gpm on low (loaded) and 57 ft/min on high (unloaded)
Warn 9k uses a 4.9 cu in (80 ml)/rev motor and claims a line speed of 20 ft/min at 10 gpm and 28.5 ft/min at 15 gpm
MileMarker 12k uses a 19.5 cu in (320 ml) /rev motor with 6:1 gear reduction and claims a line speed of 5.6 ft/min at 3.5 gpm on low (loaded) and 31 ft/min on high (unloaded <2k lbs)
Warn 12k uses a 5.0 cu in (82 ml)/rev motor with 36:1 gear reduction and claims a line speed of 15.2 ft/min at 10 gpm and 21.8 ft/min at 15 gpm
Ramsey 12k uses a 24 cu in (393 ml)/rev motor with 5.1:1 gear reduction and claims a line speed of 32 ft/min at 15 gpm
for reference, the new warn 8274-50 has a rated line speed of 80 ft/min (22m/m) unloaded, 23 FPM at 2000 lbs and 182 amps, 16 FPM at 4000 lbs and 286 amp, 12 FPM at 6000 lbs and 385 amp, 9 FPM at 8000 lbs and 480 amps....pretty dang quick.
this is a part of why i'm trying to get 8-10 gpm at idle and 13-15 gpm at partial throttle out of a high flow pump. currently working with
https://radial-dynamics.com/ as he claims to be trying to design his own pump. if not, i'll go with an unrestricted "trophy truck" style pump, failing that,
http://www.scottscustomoffroad.com/ makes the easy peasy gear pump swap stuff.
but that is more of a trail rig, rather be tired than dead type situation.
