He has a YouTube channel and a Facebook i believe. See of you can reach him there. Did you try calling?
80 Series brake hydro booster conversion installed
- Thread starter baldilocks
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Oh, I’ve talked to him on the phone before…like 6 or 8 months after I ordered. He’s an absolute idiot! He seemed somewhat reasonable on the phone before he got my money, but of course this is how most bad vendors are. Either way I have no actual interest in taking with him anymore. Was just curious as to why he randomly sent me these hoses and connectors. I send the exact picture above and asked if it was a joke. I just want to warn everyone to stay away from him.
The only thing I would try to buy from him would be the mounting plate that mates to the hydro boost assembly and source the parts yourself. That way you aren't waiting on him. That said, I am sure you can have one machined by someone like Send Cut Send or buy it from someone else.
I finally seem to have mine somewhat sorted out. I had to cut down the threaded stud coming from the booster to the brake pedal. She now seems to be working as it should, I just have to play with the brake bias settings. I have to live with it awhile as It has a firm brake pedal feel but was stopping well, the most important part.
my problem with my hydro boost setup is when i stamp on pedal or try to do an emergency stop the pedal goes half way then pulses and pushes back on me. i can never do a panic stop no matter how hard i mash. the brakes grab great at first and never applies full braking force. wondering if my hydro unit came faulty as it was a used ford f250hd unit. any thoughts?
- Thread starter
- #165
Are you using the factory reservoir where the booster return hose is tee’d into the PS return hose? All funkiness went away when I went to a PSC reservoir that had two return ports so that the booster has its own port directly to the much larger reservoir.
- Thread starter
- #166
I would buy nothing from Sweeting. I have stated a few times now to go through VanCo who is also in So. Cal.
I did the same, the PSC reservoir was huge, with three ports, to allow for better flow of the fluid. Worked with Send Cut Send to design and build a bracket.
yea i did that t into factory return low pressure line to power steering reservoir. let me look into the psc
That makes sense but it took him almost 17 months to send me two lengths of hose and some fittings. I can’t in good faith buy a single thing from him.
Powertrain integration sells such an adapter but has been “out of stock” for like a year.
Hydraulic Brake Booster Upgrade - LandCruiser 80 | Marks 4WD
Our HYDRAULIC BRAKE BOOSTER brake upgrade kit for your HZJ80 / HDJ80 Toyota LandCruiser is our most popular UPGRADE for IMPROVED braking performance on your 4WD (2-bolt master cylinder)
www.marks4wd.com
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That is your problem. The hydroboost needs its own return going straight to a reservoir.
When you apply the brakes you are directing fluid from the pressurized output to the return, so if that return can’t flow enough it will back up.
GREAT!! will try that and revert
ok I did some tests this weekend, ran low pressure return to the top of reservoir so I can see the fluid being run through this low-pressure line. on idle, line is empty. on mashing brakes as hard as I can (which is about halfway the nit pushes back up 1/4 in) no fluid still comes out. if i block the high pressure exit, fluid comes out but not at high pressure rates.
A friend with similar setup (ford f250hd hydro) in his Hilux said he had the same problem and it was the stock JZ pump not pushing enough pressure. Is that my problem also? he went with a trail gear high pressure pump and that solved his problem. Unlike his JZ, my 1hdt pump is gear driven and i don't believe there is a high-pressure replacement i can buy
A friend with similar setup (ford f250hd hydro) in his Hilux said he had the same problem and it was the stock JZ pump not pushing enough pressure. Is that my problem also? he went with a trail gear high pressure pump and that solved his problem. Unlike his JZ, my 1hdt pump is gear driven and i don't believe there is a high-pressure replacement i can buy
Did you ever figure this out?
yea, ended up being that the rear caliper were slightly seized and also the stock pump doesnt have enough PSI fo rthis ford hydro boost. a smaller one would have worked fine. i am getting enough brakes to lock all 4. but after a certain point the pedal pushes back as the psi not high enough
Which hydroboost did you get? I ended up getting a 05-10 ford hydro as well
What master cylinder are you using? The Superduty hydroboost is same internal displacement as every other hydroboost.
The 80 series steering pressure is more than enough for hydroboost. It's the same as the 7.3 Superduty at 1200 psi.
The master cylinder is a huge factor. I recommend using the stock 100 series 1" bore master. I think it works great.
Yeah, that is definitely your problem. The superduty master is HUGE. I'm surprised it works at all.
This kit bolts any 99-2010 Superduty hydroboost into an 80 series or any other toyota with a 4 bolt master.
The 2017 hydroboost you used has some minor differences so it's not compatible with this kit.