PSC has some JK systems intended for daily driving/highway use. We added the sku# PSC-SK276 system, and it drives great on the highway.

 

^X2 - that's what I bought for my busted sectorshaft blues, Ron. Glad to hear it is road viable from you. I am only gonna run the steering gear until spring but then add the ram and resi , etc.... nice kit; they make high end stuff, PSC

OP; I would think it'd be twitchier turning off the assist then switching to non assist; the tactile response would be so different it could be awkward to drive on tarmac? maybe not...interesting concept

 

I'm no hydraulic expert but it seems like if you turned off the ability for the fluid to move in the ram, it wouldn't move at all. Maybe I'm off on that.

 

i guess he'd have a QD on the ram rod-end? haha....this is starting-down the absurdity path.....

 

Have a 14 JK with PSC hydro assist I daily drive...75 mph 20 min freeway each direction its perfect...one finger on the wheel. No need for any shut off.

 

^x2

 

Thoughts and suggestions for adding a shut off valve between the cylinder and box?

Suggest making your shut-off a 3-way valve, or plan on disconnecting the ram end or hoses at "changeover" time.
IMHO, too much complexity added vs. benefit, but it's your project.

I'm no hydraulic expert but it seems like if you turned off the ability for the fluid to move in the ram, it wouldn't move at all. Maybe I'm off on that.

You're dead nuts on, dude - the cylinder would act like a solid rod.
Liquids suck at compressing.

i guess he'd have a QD on the ram rod-end?

If you wanted it to be "easy change", a 3-way valve hooked to 1 box port and both ram ports would work.
EDIT: I'm NOT saying that^^^ is not a stupid idea. It has the "could", but not the "should".
Adding a 3-way valve, and extra hose, and a "T" where there should just be 2 hoses is begging for leaks or failure.
Or put dripless disconnects inline, and connect the 2 at the ram when you disconnect 'em from the hoses coming from the box.

I thought about using those for my hydraulic winch so I could run it front or rear, but . . . **** that

IMHO, way dafook too complicated - fuggit. Simpler are gooder than complexer.

haha....this is starting-down the absurdity path.....

Pretty much. It could be done, but why :dunno:?
A "standard" hydro-assist setup with good pump-to-ram sizing balance is far simpler.

 

Suggest making your shut-off a 3-way valve, or plan on disconnecting the ram end or hoses at "changeover" time.
IMHO, too much complexity added vs. benefit, but it's your project.


You're dead nuts on, dude - the cylinder would act like a solid rod.
Liquids suck at compressing.


If you wanted it to be "easy change", a 3-way valve hooked to 1 box port and both ram ports would work.
EDIT: I'm NOT saying that^^^ is not a stupid idea. It has the "could", but not the "should".
Adding a 3-way valve, and extra hose, and a "T" where there should just be 2 hoses is begging for leaks or failure.
Or put dripless disconnects inline, and connect the 2 at the ram when you disconnect 'em from the hoses coming from the box.

I thought about using those for my hydraulic winch so I could run it front or rear, but . . . **** that

IMHO, way dafook too complicated - fuggit. Simpler are gooder than complexer.

Pretty much. It could be done, but why :dunno:?
A "standard" hydro-assist setup with good pump-to-ram sizing balance is far simpler.

^X2 ; good info and I like how your mechanical mind worked out a possible solution, as inane as it would be.....I concur with it being viable to just go hydraulic assist.....

 

Just a simple shut off valve in between the cylinder hose is all required. The ram will act as steering dampner .

It also depends what size tyre you are running. Above 37 the psc acts good

 

no that wouldnt work. it will NOT work as a steering damper. the valves on a steering damper allow fluid exchange between sides, a ram will not. if you plugged off the hoses with fluid in the ram it's not moving at all. it's a hydraulic piston not a glorified stabilizer.

anyway, i've had ram assist for 3-4 years and see no reason to have a "shut-off". in fact it drives much better with ram assist