Got it!There is no way to increase pressure output. You could drill out the pressure port a drill size or two but that would only allow greater volume. I don’t know what negative side affects that might cause.
Based on info from West Texas Off Road where I bought my ram and others here on mud who have done hydro assist, I left my pump stock running a 1.5” ram.
The pump puts out plenty of pressure to run hydro assist. The only issue is a lack of flow at idle. I also run a brake hydro booster so my pump is powering more than most. At pretty much any thing above idle rpm the steering works very well. At idle the steering is more powerful than without hydro assist but slow. If I’m jammed up in rocks and can’t roll, I just bring up rpm’s by either slipping the converter or shifting to neutral. This has worked well for me.
A bit sketchy for a street driven truck if hydraulics fail.You could go Full Hydro. I did that on my buggy that is based on an 80. I used a kit from trail gear, 2.7L 3.4L Tacoma Full Hydraulic Steering Kit - https://trail-gear.com/steering/hydraulic-steering/2-7l-3-4l-tacoma-full-hydraulic-steering-kit.html. I removed the stock PS pump, made a block off plate. I then took the AC bracket and made a mounting bracket from he 3.4L Tacoma PS pump. Works great. I had to have the knuckle arms machines out to except the Heim Joints. If you want more info PM me.