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full hydraulic steering with hydroboost brakes???

18K views 20 replies 9 participants last post by  VancoPBS  
#1 ·
Does anyone out there have pics or info on the proper way to "pipe" in a full hydraulic steering system with a hydroboost brake kit??? The guy I spoke to at Vanco Power Brakes said it has been done. Anyone here done it???
 
#3 ·
Damn, I just found some thing, but no pics. Use the factory pump for the hydroboost and the high out put pump for the steering. This is going to be a fu(king nightmare.

I will take any and all advice.........regarding the steering and braking that is.
 
#4 ·
I run one PS pump with my Hydroboost and my full hydro orbital valve.. Pressure side of pump goes to Hydroboost, return of HB goes to the orbital, return of the orbital goes back to the tank, the return on the hydroboost goes to a second return line that I made in my tank. The factory diesel trucks with HB and PS already have two returns in the factory tank but with full hydro you need to fab up a much larger tank with a cooler.. Let me know if I can be of any more help. BTW my PS pump is a KSE racing setup with a higher flow output fitting, I think its like 3.1 gpm but it worked just as good around 2.5 gpm.
 
#5 ·
I have a PSC pump and reservoir kit. It is rated at 4.5 gpm, so I sould be good with one pump also. Do you think I could just "T" the two return lines to the reservoir instead of making another return inlet in my reservoir?
 
#6 ·
I run dual pumps. A stock p-pump for the brakes and a KRC pump for the steering. I tried a single pump but the hydroboost did not like the high pressure of the KRC. It pulsated the pedal way bad. Plus under hard braking the brakes get priority so you lose power steering for a second or two. Doesn't sound like much but it sucks.

Check out my "double ended hydro assist" thread for all the pics of my brackets and setup.
 
#8 ·
My system is just a stock saginaw pump with the mods found at west texas website, a 78 Lincoln hydro boost and an forklift steering valve controlling a 2X8 ram pushing 44 inch ag tires- works perfectly fine. Everything I used other than the cylinder was used, and the hydroboost is plumbed same as when it was in the Lincoln.
 
#9 · (Edited)
willyswanter said:
I run dual pumps. A stock p-pump for the brakes and a KRC pump for the steering. I tried a single pump but the hydroboost did not like the high pressure of the KRC. It pulsated the pedal way bad. Plus under hard braking the brakes get priority so you lose power steering for a second or two. Doesn't sound like much but it sucks.

Check out my "double ended hydro assist" thread for all the pics of my brackets and setup.
x2. If anyone is the poster child for doing this right, this is the man. He speaks the truth.

I still run vacuum assist power brakes because I'm just not willing to go through all that hassle for hydroboost. If it was stock on my turck, I'd swap it off. Vacuum assist is more than enough when it's working properly and it saves your power steering pump for what you need it for--turning the wheels!
 
#11 ·
VancoPBS said:
If you got a hi-flow Hydroboost from me there's no reason at all to run 2 pumps. If you did call me, let me explain it better. If you didn't get it hi-flowed through me or run 2 pumps.
I spoke to Eddie. We did not talk about me having to run two pumps. He just said it is doable.

Van, will the PSC pump be enough to run both the steering and the brakes (4.5 gpm, 1600 psi)? If you need to know, I have a PSC balanced cylinder with a 2.5" bore and 1.5" shaft, and a 5.9 cu. in./rev. orbital valve (non-return).
 
#13 ·
Well, I got a hydroboost kit from Van and will try to install it as soon as it gets here. I have already started installing the hydraulic steering kit. I will give you guys my opinion of the entire setup after the install is complete.
 
#14 ·
I have the whole thing done. Inital test show that everything Van said is correct. I can hold the brake or pump the brake while turning the wheel.....the wheel turns the exact same.....no lose of power assist.:smokin:

Forgot to look for that "self appling brake thing" I heard about. When and how does this happen?
 
#18 ·
Glad it all worked out. You get the whole kit from me? Those don't look like my hoses.. (what's up with the red?)..Also the self applying brake thing is usually a plumbing mistake or a defective Hydroboost. Step on the brake pedal a couple times. While staring at the rod that connects to the brake pedal start the car. If it moves at all that's a problem, if it doesn't you won't have that problem.
 
#19 ·
Van, My name is Johnathon. I called you and gave you two different Fire wall mounting messurements (3 3/8 and 3 1/2)....You said my Grand Cherokee had an unusual booster/master cylinder. Remember me yet? I got your kit minus the pump. The hoses that go to the steering are from a local place. Yours go to the hydroboost.

I painted it red after I installed it. I forgot that it had to be panited or it will rust. I will do a complete rebuild of my grand after I beat on it for a while. I am just doing some testing right now.

I had to run to OK. for work, I will test the for the self applying brake when I get back.
 
#20 ·
UPDATE:

The brakes work awesome. Of course you have to install a proportioning valve to prevent rear wheel lock up, but with that adjusted the brakes lockup nice and even. My wife drives a Pontiac Grand Prix with ABS and four wheel disk brakes and we feel like my jeep with 38.5x15 boggers and 4 wheel disk brakes stops just as good as her car.

Also, I think you HAVE TO install a cooler. My system go stupid hot without a cooler.