Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

thinking of going full hydro...

Discussion in 'The Garage' started by 55Willy, Apr 5, 2007.

  1. 55Willy

    55Willy 3/4 ton status

    Joined:
    Jun 2, 2001
    Posts:
    9,946
    Likes Received:
    0
    Location:
    Keizer, Or
    thinking of dumping the steering box and drag link and just going full hydro on the buggy. Can I still use a single sided ram or do I need a double ended one? also what has everyone used for a valve?? can i keep my stock pump and res set up?
     
    Last edited: May 3, 2007
  2. 55Willy

    55Willy 3/4 ton status

    Joined:
    Jun 2, 2001
    Posts:
    9,946
    Likes Received:
    0
    Location:
    Keizer, Or
    any1?
     
  3. 1977k5

    1977k5 3/4 ton status Vendor

    Joined:
    May 26, 2003
    Posts:
    9,992
    Likes Received:
    130
    You don't need a double ended ram.

    There probably aren't many people on here running full hydro. Buy a membership on pirate and try searching over there (or search pirate through google).
     
  4. 85mudblazin

    85mudblazin 1/2 ton status

    Joined:
    Mar 26, 2004
    Posts:
    3,951
    Likes Received:
    0
    Location:
    Austin,TX
    Im running full hydro on mine and I LOVE it. I am using a 2" Tractor supply ram with a stock PS pump with a few mods done to it.
    I have a 9.6/cu. orbital and I have about 2.5 turns lock to lock.
     
  5. cybrfire

    cybrfire 1 ton status Vendor GMOTM Winner

    Joined:
    Dec 15, 2002
    Posts:
    15,139
    Likes Received:
    565
    Location:
    Iowa
    I'm running full hydro on mine. Just removed the 2" double ended cylinder in favor of a 2.5" double ended. 2" was to twitchy for my tastes and not near enough power.
     
  6. 55Willy

    55Willy 3/4 ton status

    Joined:
    Jun 2, 2001
    Posts:
    9,946
    Likes Received:
    0
    Location:
    Keizer, Or
    what mods to the pump and what size steering valve? PSC list like 4 different ones depending on cubic inches of movement i guess. ALso have found soem only labled with a PSI rating.
     
  7. miniwally

    miniwally 1/2 ton status Premium Member

    Joined:
    Aug 11, 2003
    Posts:
    3,065
    Likes Received:
    189
    Location:
    Colorado
    I am running a full Howe system. I couldn't tell you what the valve size is any more but I have a 2" Double ended ram.

    The nice thing about a Double ended ram is that you have the same turns lock to lock both directions. With a single ended you don't.

    The size of your valve is going to depend on the size of the cylinder that you run. Like Cyberfire said he slowed his system down by installing a larger ram.
    My system is like 2.25 turns lock to lock and I had to grow to like it. Now it is great IMO but others drive my buggy and don't like how twitchy it feels.

    I would work with someone like PSC, Station on Pirate, Howe etc. They can help you along the way with getting a system that will work for you. I know many guys have pieced together a system that works great but they also have done hours worth of research. I personally didn't have the time to do the research when I bought mine so I simply called the best at the time and bought an off the shelf system.

    Good luck.
     
  8. cybrfire

    cybrfire 1 ton status Vendor GMOTM Winner

    Joined:
    Dec 15, 2002
    Posts:
    15,139
    Likes Received:
    565
    Location:
    Iowa
    We did the research route and pieced together a system. Good education, lots of time spent doing what somebody else has already done.

    I can't even remember the ci, of the valve right off. MikeyDo5 did the figures for me on that one. It was 9 something if memory serves.

    No mods to the pump, I'm using a deisel with hydro boost pump. Some of the things you do to mod a pump are already done to this pump. Orifice size that is drilled out and such. I'd be interested in bumping the pressure but not the flow. We did shell out a pump almost immediately when we did our first testing. Sheared the main shaft out of it.:eek1:
     
  9. 55Willy

    55Willy 3/4 ton status

    Joined:
    Jun 2, 2001
    Posts:
    9,946
    Likes Received:
    0
    Location:
    Keizer, Or
    any pics of the ram mounting. I have mine set up for high steer but I may just swap back to regular knuckles as I don't need a drag link or flatops for that matter and could recoop some of the money to put towards the valve.
     
  10. silveradoreb

    silveradoreb 1/2 ton status

    Joined:
    Mar 11, 2005
    Posts:
    150
    Likes Received:
    0
    Location:
    Boone,NC
    search reddman on pirate..he has a steering thread where he setup full hydro with a single enfed ram on an early 90s chevy.
     
  11. cybrfire

    cybrfire 1 ton status Vendor GMOTM Winner

    Joined:
    Dec 15, 2002
    Posts:
    15,139
    Likes Received:
    565
    Location:
    Iowa
    [​IMG]
    This is a shot in the design phase. Pretty much the way it ended up.
     
  12. 55Willy

    55Willy 3/4 ton status

    Joined:
    Jun 2, 2001
    Posts:
    9,946
    Likes Received:
    0
    Location:
    Keizer, Or
    thanks, thats a sweet build.
     
  13. mikey_d05

    mikey_d05 1 ton status GMOTM Winner

    Joined:
    Nov 23, 2004
    Posts:
    10,453
    Likes Received:
    0
    Location:
    Minnesota
    For some reason I'm thinking those orbitals were 7.xx cu. in./rev. If you really want to know give me the dimensions of your cylinder and the turns lock to lock again.
     
  14. 55Willy

    55Willy 3/4 ton status

    Joined:
    Jun 2, 2001
    Posts:
    9,946
    Likes Received:
    0
    Location:
    Keizer, Or
    could the math work backwards?

    I have a 2x8 ram and want between 2.5 and 3.5 turns lock to lock.
     
  15. mikey_d05

    mikey_d05 1 ton status GMOTM Winner

    Joined:
    Nov 23, 2004
    Posts:
    10,453
    Likes Received:
    0
    Location:
    Minnesota
    Single or double ended? What's the diameter of the rod?

    Yes, the math can work backwards, give me the dims. and I'll show you how.
     
  16. 55Willy

    55Willy 3/4 ton status

    Joined:
    Jun 2, 2001
    Posts:
    9,946
    Likes Received:
    0
    Location:
    Keizer, Or
    single ended. dang can't remember the dia. of the rod though. just the ram size,LOL I'll check tomorrow as it is 8 miles away,LMAO
     
  17. mikey_d05

    mikey_d05 1 ton status GMOTM Winner

    Joined:
    Nov 23, 2004
    Posts:
    10,453
    Likes Received:
    0
    Location:
    Minnesota
    2” bore 3.14 sq. in. (piston area) 25.12 cu. in. (volume of non-rod side)
    1.125” rod. .994 sq. in. (rod area) 7.95 cu. in. (volume of rod)
    25.12-7.95=17.17 cu. in. (volume of rod side)

    25.12 (volume of non rod side)/3.5(desired revolutions lock to lock) = 7.17 cu. in./rev. (orbital displacement)

    17.17(volume of rod side)/7.17(orbital displacement)=2.39 rev. (number of turns lock to lock the other way)

    Your steering is going to be "unbalanced" if you use a single ended ram. Meaning there are more turns lock to lock one way than the other. There's a 7.3 cube orbital available, which is as close as you're going to get with those numbers. I used a 1.125" rod for the calculations since that seems to be the standard for 2" bore rams.
     
  18. 55Willy

    55Willy 3/4 ton status

    Joined:
    Jun 2, 2001
    Posts:
    9,946
    Likes Received:
    0
    Location:
    Keizer, Or
    sweet man, thanks!!!
     
  19. 86Cucvbeater

    86Cucvbeater 1/2 ton status

    Joined:
    May 24, 2005
    Posts:
    428
    Likes Received:
    0
    Location:
    north carolina
    So the orifice in diesel/hydroboost pumps is already 5/32 or what? I was going to mod my pump because I don't have the "one finger turn" with my CUCV on 42's but if it already has an increased orifice size then I wil leave it alone..
     
  20. cybrfire

    cybrfire 1 ton status Vendor GMOTM Winner

    Joined:
    Dec 15, 2002
    Posts:
    15,139
    Likes Received:
    565
    Location:
    Iowa
    I believe its larger than that yet.

    The orifice size probably won't get you the one finger turn ability at any rate. Your wanting more pressure.
     

Share This Page