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I have a rear steer samurai plumbed exactly like that in my garage.Yes, either rear steer valve can be used with essentially any pump (I generally recommend against P pumps if it can be avoided). There is a common misconception that to run front and rear steer off of a single steering pump requires twice as much pump capacity but since you can only ever fully use front or rear at a time in a single pump system, you don't need any more pump flow to additionally run rear steer than you would need anyways for a good front steering full hydro system.
While there are some alternative options, this 4-port rear steer setup is the most common plumbing arrangement for a single pump system. The rear steer return feeds the front so you can use both at the same time but during simultaneous operation, the available pressure gets split between the two so if the steering stalls, you just have to remember to let off the steering wheel or the rear steer momentarily:
I don't know what flow or pressure a stock sami pump is producing but it is probably not a lot. However, considering the 1.6 motor is not producing a lot of horsepower, I would recommend a TC pump as the best option since it is smaller displacement and therefore going to consume less HP than a P or CBR pump.
The 12V pump you shared above is a viable option but with a fixed flow rate of 1.5 GPM, it is going to be fairly slow to act. I do have customers using similar pumps and one of the only real issues with it other than speed is that the solenoid coils tend to not be great at dealing with the elements.
I run two CB pumps (stock parts-store 90's Saturn application, converted to remote reservoir, and Afco AN-6 outlets) for my system. Merged flow; I have run with a failed pump (one good, one bad, effectively same thing as only having one pump) in the past and it works, but it slows things down noticeably. That's with 2.75x8 cylinders both ends, and the last time I was running on a failed pump, was on a 4500-pound car with 42's. If you're lighter or smaller-tires, either of those helps. P pump is better (marginally) than a CB for that, but there's so much "it depends" in there that it's hard to say "here's the way".
My reason for avoiding a P pump if possible is that of the typical pumps available and often used for full hydro systems, P pumps are generally the least suited to the application.
I use a single TC pump (mine is parts store drilled out/ wife’s is 1650psi Tg pump) and they work great. Cars are between 2900-3300lbs both have 2.5” rear rams. All the cars I have put rear steer on have been single pumps(PSC).
www.rme4x4.com
www.pscmotorsports.com
If you think you need that much pump you are better off doing the Scott’s Offroad gear pump. It’s one pump for the price of two but it’s 5 times the pump. If I ever get around to building my rear steer buggy it’s the pump I plan to use.
20cc/rev
Up to 20 gpm @ 2000 psi. You’ll notice anyone complaining about them run LS’s and think they need to live at 6000 rpm all the time so they have to run it too slow at idle. Looking at you Bebop
So same as the $2,000 RDT pump? Even with the losses, seems like for $700, it could be a good fit for a crawler application that needs maximum speed near idle and rarely hits 6,000 RPM. I want to say I've seen Eric post that the RDT is good for 8,000-9,000 RPM though? I am sure the RDT is a superior product, but for $700 vs. $2,000, is it really worth it for a recreational application? I was doing some math the other day, and it takes a shit ton of volume to have reasonably fast steering with a 3" ram.
Facts.
Crawling is boring AF, sorry I guess
