Does anyone run a setup w/Hydroboost brakes and Full Hydraulic steering or hydroboost brakes and Hydraulic Assist steering ulitizing 1 power steering pump.

If you have done this then,

What power steering pump did you use?
or
What hydraulic pump did you use?


How did you hook it all up? Coolers(size)??

Anybody know how to get a Saginaw Steering pump onto a '94 YJ 4.0L and replace the stock TC pump

TIA

:smokin:

I think PYRO uses hydroboost brakes with hydraulic assist. Do a search for him and check out his web page.

EDIT.......

http://www.members.tripod.com/surfmac/Index.html

Matt K
I know this is an old post did you get you questions answered..i am currently doing this
billyji@hotmail.com
Mike

I am going to do this, and I know that Brector has done this.

me too. no cooler, saginaw box from a chevy pu. I think it needs a cooler though. And I do run dual filters.

I've got that.

Using a GM 2.8 to 3.8 passenger car small pump. TJ steering box with a 1.500 x 7.500 ram. Works outstanding. 4 wheel disk brakes using GM 1/2 to 3/4 ton calipers all around. No cooler (bad idea on my part). Should use a cooler not for heat transfer but for extra fluid in the system. Stand on the brakes and turn left off some Roggy crazy rock course and I can run the pump low on fluid. Best thing I've seen was all the same parts I use but with a regular GM pump (no can on it) with a remote resivoir on the fender.

Be careful bleeding the system. If you can, turn the pump with a drill and crack the lines at the ram. Turn it lock to lock several times. Got to have 2 people for this but this will get all the air out the first time....


see ya,

tony k

my motor is a 99 vortec from a 1ton chevy dually. it came with hydro-boost. i run hydro-boost on my jeep with the stock 99 pump and i also run full hydraulic steering with no problems. i do run a cooler. i run one of the dual circuit coolers from summit. the larger circuit for the tranny and the smaller on is used for the steering pump.

when i am on the brakes i can feel some resistance in the steering but it is not so much that it is a problem.

As long as you stay with a 1.5 or smaller ram you should be fine.

Originally posted by TONY K
No cooler (bad idea on my part). Should use a cooler not for heat transfer but for extra fluid in the system. Stand on the brakes and turn left off some Roggy crazy rock course and I can run the pump low on fluid.

A cooler won't solve that problem, you need a bigger reservoir.

My setup: Stock hydroboost brakes, 2 x 8 ram, '87 1 ton pump (for hydroboost), and using the oil cooler in the radiator (truck was originally diesel) on the return from the steering. The reservoir is the stock remote one, that I cut in half and added 5-6" of height too.

I need to figure something out, as the pump isn't too happy. I put on a new one when I did the hydro assist, and did the flow mods as detailed on West Texas Offroad's site (thanks, Matt). I also removed the one washer that was in there. That pump lasted through Moab, and some use when we got home, then died. I put a new one on (unmodifed), and the volume mods are definitly required. I did have a lot of issues bleeding the system when I first put it on (before I enlarged the reservoir), and also had some leaks that could have let the pump run dry. I plan to pull the modified piece out of the old pump and put it in the new one. I'm still not sure if I'm running it too hot, if the pump died from running dry, or if I just need a bigger pump, but I guess time will tell.

Pete

A lot of how well a pump performs/ lasts has to do not with the size of the ram but with the combination of the ram and orbital valve.

Basically, the less turns you have lock to lock with your combination, the HARDER your pump is going to have to work and the QUICKER it will fail.

A lot of people think it is ONLY the size of the ram. The guy I bought my setup from sells only 1 type of orbital for cheap (cause they are used off of combines). With a 2 inch ram it is about 1 to1.5 turn lock to lock. Then he sells 2.5 inch rams which make it about 2.5 to 3 turns lock to lock and he told me that BY FAR, the 2.5 inch rams have less overheating problems and less pump failures than with the 2 inch rams.

Anyway, just wanted to let ya know. It is not just the ram, it is the combination of the ram and orbital.


(Thats why it gets real confusing when people tell you how hard their setup is on their pump, cause they all probably have different orbital valves.):D

I run a hydroboost with 4 wheel discs, AGR Rockram assist and AGR box, with an in line cooler. Used the reservoir off the GM pump that was with the hydroboost. They are slightly larger than a stock gm can I think. This setup has worked well for me but I've had a couple people tell me the stock GM hydroboost pump would have worked as well as the AGR or maybe even better. I don't know about that but if I was starting from scratch again I'd probably try it.

Originally posted by TheLakeRat
As long as you stay with a 1.5 or smaller ram you should be fine.

i run a 2x8 with no problems. also as i said i run a cooler but i do not run a res. and i have had no problems.

does anyone recomend running a temp guage on the steering system?

Originally posted by high5
does anyone recomend running a temp guage on the steering system?

I havent ever heard of anyone using one. I think your temp gauge is pretty much if it start boiling:D:D:D

I would just run a larger resovoir and a cooler, overkill and I have never heard of anyone having a problem with both.

How does that ...'run the returns back through the auto trannie chamber in the radiator bottom" ... idea strike you guys?

It will ad volume to the system ... but when crawling, the rad gets pretty hot without added vehicle speed air flow through it.

I've been thinking about running the return through the rad, then up to a small trannie cooler on the fender well (in the fans side flow) and then back to the saginaw AGR pump.
That at least would provide a bunch more return side volume.

What's ya think?

I forgot to say that mine is hydro assist, not full hydro. I rebuilt the stock box, with a 2wd sector shaft (for crossover steering), and drilled/tapped the caps for the hydro lines.

The auto tranny cooler in the radiator idea is essentially what I run, except my radiator has 2 internal coolers; the auto tranny one, and the oil one that I'm using for the steering. It does add volume, but does not negate the need for a large reservoir, particularly when using the larger bore (ie 2" and up) single-ended rams. The reason you need the larger reservoir is that you have to account for the volume that the rod displaces inside the cylinder (8 in^3 for a 8" bore cylinder w/a 1 1/8" rod).

Pete

Originally posted by Jaffer
How does that ...'run the returns back through the auto trannie chamber in the radiator bottom" ... idea strike you guys?

What's ya think? Check out Mike Knorr's article at BC4x4.com He did this, now he no longer does it.