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Discussion Starter · #1 ·
Anyone tried the hydrobrakes?what vehicles used them and is this a junk yard conversion or what?


CJJ
 
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Discussion Starter · #4 ·
Wayne,
where did you come up with the parts for the conversion,junk yard ,dealer or autoparts?
If i might ask what was the cost of components?
There are two places that i saw on the web that deal with these conversions but want an arm and a leg for their systems.
Was the conversion worth the effort?
I am building a ground up scrambler and needed to come up with something.
The hydro system looks to be my best option due to a low vaccuum situation with the engine(big cam)
any additional info,comments would be appriciated.
Thanks,CJJ

CJJ
 

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i got the same problem due to very low hood clearance (CJ2a) and I been thinking about hydroboost too. i notice from my weekly junkyard visits that the hydro are on the mid 80's gm and cadallic battle cruisers. The cadallic also has rear disc brakes. when it come time to do my I have to go used, ain't no way I can afford new. Beside there is everything in the used lots. 44,60,70, saginaw,disc, hydro,18,231. etc.

brownbagg </font color=red>
 

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Hey Dan
All the parts were bought at NAPA auto parts store. All the parts for the conversion run a little less then 400 bucks, about 100 bucks less then the kits on the market. These brakes are awesome, I can lockup BFG MT 33 x 12.5s with about 1" of peddle travel. The frist time out they almost put me through the windsheild, but you get used to them in no time. This is one of the best mods i've done, well worth the time and money. I'd suggest buying everything new, used parts are not for something as critical as brakes.

The problem with the later models is the the O ring hose fittings make it harder(read expense) to have hoses made. Also the acumulater uses a gas charge instead of a spring, if you go with used parts you don't know if there is any gas left inside tell its completely installed and tested. And even then you don't know how long it well last. The spring loaded type seem more reliable.

Wayne in Hawaii
PYRO II, 77CJ5
 
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Discussion Starter · #7 ·
I had the Hydroboost in my old Chevy diesel truck. For the most part they worked ok, but there were a few things about them that I didn't care for. First, hard braking like making an emergency 30-0 stop could be hairy, sometimes it didn't want to stop hard. Could have been my system was a little worn out after 350,000 miles and this isn't a common problem. Second, on a cold (30*F or less) morning before the PS fluid gets good and warmed up the brakes are VERY touchy. I mean it, don't even look at the pedal very hard. The slightest touch gets you an introduction to the windshield. For the most part the system worked pretty well but I would have preferred a vacuum system. If your cam is not producing good vacuum at idle you could always run a vacuum reservoir like racers use. They work quite well, storing higher rpm vacuum for later use. Besides, don't you just love the term "vacuum reservoir" having one of them under the hood gives you an excuse to drop it into conversation. The concept of needing to have a container to store "nothing" in abundant supply sounds ridiculous, but it beats not stopping.

"My other car is a BULLDOZER"
 
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Discussion Starter · #8 ·
Excuse my ignorance, but can these be used on a system that already ahs power brakes?? I always felt that BlueJay's brakes could be imporved up on.

BlueJay
93 YJ with upgrades (and it is Blue!)
 
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Discussion Starter · #10 ·
Hydo boost rules! Well worth the time and expense. I put them on my 85 CJ for $50.00 It also has 4 wheel discs. It will lock up 36 tires at any speed you have the ba**s to try it. I use all Caddy parts as their availability is still good in my area.

 
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Discussion Starter · #12 ·
I am putting them on my CJ with 44" meats and from research I have done expect they will lock them up without too much effort. I got mine from a junked chev diesel pu.
wayne_in_NC

 
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