I'm doing a 1 ton swap on my MJ. D60/14b, 3 link, yadda yadda. currently on H2 wheels with 35s (they were free) but I plan to run 37s-42s...which ever I can find used for cheap. I've decided to do a single ended hydro ram setup.
My uncle was able to hook me up with a Char-Lynn orbital valve (for free) off of a piece of equipment from work. Open center, non load reactive, 17.9in^3
.
I originally determined that it was going to be too much for hydro steering. I then crunched the numbers, and they were not that bad.
https://www.surpluscenter.com/item.asp?UID=2009050617162689&item=9-5268-08&catname=hydraulic
Thats the ram I want to run (2.5x8.1.25). I will have to limit the travel to 7" for my front axle. This will leave me with a volume of 34.25in^3 for extending the ram and 25.67in^3 for retracting the ram. With my 17.9in^3 orbital valve I will be at 1.9 turns to extend, and 1.43 to retract. The vehicle is NOT driven on the street, and is trailered to all events. I have bad shoulders, and they get sore if I'm cranking on the steering wheel too hard, or if I'm whipping it around trying to get traction.
Will this orbital be too much for me? The next question I have is...will my PS pump handle this valve? Char-Lynn says it calls for 4-8 gallons per minute. This is the same as other models with smaller in^3/rev.
http://www.h-ri.com/Product/Steering_systems/Steer_sys_helm_details.html
I also have the option to buy a closed center valve, and use the snout from that orbital to put on mine, and lower the in^3/rev to 4.5. My worry then is that I will be constantly spinning the wheel to turn. I'd also have to run a smaller ram, in the 2" range. If I use the ram above, I will be at 7.63 revs for extending, and 5.7 revs for retracting. Keep in mind that the suggested flow for the 4.5in^3 valve is ALSO 4-8 GPH.
My main concerns are is the 17.9 valve going to be too fast? Will it lack power? Will my pump (stock Jeep...but willing to upgrade) handle the valve and ram?
My uncle was able to hook me up with a Char-Lynn orbital valve (for free) off of a piece of equipment from work. Open center, non load reactive, 17.9in^3
.I originally determined that it was going to be too much for hydro steering. I then crunched the numbers, and they were not that bad.
https://www.surpluscenter.com/item.asp?UID=2009050617162689&item=9-5268-08&catname=hydraulic
Thats the ram I want to run (2.5x8.1.25). I will have to limit the travel to 7" for my front axle. This will leave me with a volume of 34.25in^3 for extending the ram and 25.67in^3 for retracting the ram. With my 17.9in^3 orbital valve I will be at 1.9 turns to extend, and 1.43 to retract. The vehicle is NOT driven on the street, and is trailered to all events. I have bad shoulders, and they get sore if I'm cranking on the steering wheel too hard, or if I'm whipping it around trying to get traction.
Will this orbital be too much for me? The next question I have is...will my PS pump handle this valve? Char-Lynn says it calls for 4-8 gallons per minute. This is the same as other models with smaller in^3/rev.
http://www.h-ri.com/Product/Steering_systems/Steer_sys_helm_details.html
I also have the option to buy a closed center valve, and use the snout from that orbital to put on mine, and lower the in^3/rev to 4.5. My worry then is that I will be constantly spinning the wheel to turn. I'd also have to run a smaller ram, in the 2" range. If I use the ram above, I will be at 7.63 revs for extending, and 5.7 revs for retracting. Keep in mind that the suggested flow for the 4.5in^3 valve is ALSO 4-8 GPH.
My main concerns are is the 17.9 valve going to be too fast? Will it lack power? Will my pump (stock Jeep...but willing to upgrade) handle the valve and ram?
