Power Steering R&D

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I have a PRM-1005 mounted in the same location for a power steering cooler, I am sure that you paid a little more for that monster though... (Also have my hoses running through the hole in the crossmember and insulated with scr@p fire house.) Pretty easy to install and the mounting screws are holding tight in the sheetmetal.
 
interested, thanks for all this work !
 
cool but

i have ported the 80 pump and am running a small ram and unless you are bombing in the desert and turing back and forth hard (i do it) you would never know the oe pump was "slow".

porting the oe pump is not hard and the ram is cheap.

But neat r&d. its just that the oe pump works great unless you run a big ram


that is a great price on a modded pump. could you charge a little extra and do the tapping of the pump for the hydro lines???
 
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Thanks for the comments. It been a royal pain in the rear. This pump has a strange design compared to others of the same type. As for the the pump.....I have one on the truck that is running at 3.7 gpm and is set to 1650psi and have been running it for a few days now. Only problem that I am having with it is the whine that comes into play at 2k rpm's. Even with a 1 quart filterless (has magnet in it though) fluid tank...the noise is there and it is audible when rolling on the trails unless you are under 2k rpms.
We have done many things and I have mounted/dismounted pumps about 100 times....:crybaby: but have not hit that wall yet...close but not yet. We have the pump where we want it with respect to flow and pressure but need to sort out the whine. Hopefully we can get rid of it....but have a feeling that this thing will have to be lived with.
As for the peformance.....the steering is more responsive and is easier to steer while trailing but have not been able to hit trails that are 4's and 5's with it yet.
The pump is ported as much as it can be with out falling on its face. Pressure is set to 1650psi. We learned that the higher pressure with higher flow will cause the shaft seal to leak when it hits relief. The relief ports are too small to be able to handle pressurized flow.
We are still open for suggestions, and Dusty thanks for the feedback about the steering. And to answer your question, there is not really enough material to tap the pump for hydro lines from what I have seen. Suggestions are welcome. Thanks for being patient and I hope this is not too much of a let down.
 
I will look into the lines.....I may have over looked them. Especially since everything is new. It could be that the pump is cavitating due to the lack of volume it can take in or that it can send out though the system. A larger inlet port would be nice. My fluid looks clear with no bubbles so I can almost rule out the aeration but again I will look into it. Thanks for the idea. With almost a month of this....I am close to getting burned out.
I am also looking into a new 1qt tank. I dont think that any more than that for volume is needed. I have looked into several different vented tanks but like the cooler I chose, it may take me some time to decide on a tank. I may just tig one up that way I can make it the way that I want. Who knows though.
As for the steering box.....yes there is plenty of meat and tapping the passages for hydro assist is pretty straight forward. Just like doing a sag box. :)
 
bump, project on the backburner?
 
Not at all. Just dis not want to offer a product that made so much noise. Due to all the internal porting needed for the flow upgrade, it has a constant whine. Does not change the performance but is just annoying.
Those that have been around heavy equipment will know what I am referring to when pumps get cranked up. Not to mention the added heat.
Had great numbers with the setup. But like I said, it whined and I wouldnt want that noise on my truck so I wont offer it as a product.
I have tossed around the idea of running a different pump in the same location. So far the cost is high too high for the work and the demand will never be there.
So thats about it. The OEM pump is what it is and those that want to run a ram will just have to put up with the lack of cylinder speed or winch speed for those with hydo winches.
 
Bumping this thread back from the dead. Scotia - have you abandoned this? Is there an intermediate hope for people looking for a bit more flow and/or pressure without the groaning/whining noise you mentioned? If you're abandoning the project, can you share what you did and how you did it so that at least others may be able to build off of (or accept the noise of) the first attempt?
 
I'm working with 2 buddy in some sort of bracket ( using part of the OEM pump ) to run a PSC 1200X pump in the stock location ..
 
I'm working with 2 buddy in some sort of bracket ( using part of the OEM pump ) to run a PSC 1200X pump in the stock location ..
That'd be nice too, but pricey.
 
Bump, why not?

Better performing pump in the stock 1FZ location..
 
Well for those interested parties and those that may be following this thread, I have some news regarding our stock 80 series pumps. I have stepped out of the shop with a few numbers thus far. Stock numbers are as follows: 1500 psi with 2.750GPM. This explains what we already know.....in stock form it will not supply a ram assist with any real driveable speed or a hydro winch for spool speed Now that we have been playing with it, today we achieved a max pressure of 2000psi. And there was room for more(more info on that later). Flow is currently at 4GPM but we are only just now tuning that since we have good pressure numbers. What I am %99 sure of is a pump that will be available with 1800psi and 5GPM. The flow rate may get higher, but I will be leaving these at 1800psi. Hoses blow at 2200psi.

With this said, this will be a nice factory bolt on upgrade. Whether locked, unlocked, ram assisted or just running larger tires, this will be a nice mod. Steering on road will remain uneffected but offroad wil be enhanced. I also need to note that this will double the spool speed of any hydro winch running on a non modded stock pump.

Now I might get hit up by those that begin to question the steering gear box. That too is going under the knife to see what psi numbers it will handle for those that want to run a higher than 1800psi pump. The 1800psi/5GPM pumps will run a healthy stock steering box with out problems....not to worry. With this said, a higher psi pump will be offered but with no warranty.

These pumps will be available on a core exchange system. Send me your pump and you will get an 1800psi/5GPM pump. As mentioned, a higher psi pump will be available but with no warranty. Flat rated pumps(above) will cost $225 with exchange and come with a one year warranty. This pump will be completely rebuilt inside and out. The higher psi non warranty pumps will cost the same. With either pump, I recommend ditching the stock paperclip PS cooler and installing a larger more efficient unit and depending on you high pressure hose's age, change it too. Non core units may be available but cores for these trucks are hard to find which inturn will increase the cost. That number is not known yet as I have not looked into it as of yet.

These unit are being built and tested in a commercial steering/hydraulis facility that has been in business for over 30 years. One that supplies dealers, shops, and part stores with steering and hydraulic units. These are not built in a shed. If you are interested or have more questions regarding this pump, feel free to post on this thread or pm me.
Are these pumps still available?
 
I was getting excited reading through this post. Was wondering how it would increase braking force when do a hydro-boost brake system upgrade.
looks like this did die during R&D. That is a bummer.
 
Not at all. Just dis not want to offer a product that made so much noise. Due to all the internal porting needed for the flow upgrade, it has a constant whine. Does not change the performance but is just annoying.
Those that have been around heavy equipment will know what I am referring to when pumps get cranked up. Not to mention the added heat.
Had great numbers with the setup. But like I said, it whined and I wouldnt want that noise on my truck so I wont offer it as a product.
I have tossed around the idea of running a different pump in the same location. So far the cost is high too high for the work and the demand will never be there.
So thats about it. The OEM pump is what it is and those that want to run a ram will just have to put up with the lack of cylinder speed or winch speed for those with hydo winches.
Current status on this, if any?
 

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