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#26 |
Registered User
Join Date: Oct 2010
Location: Where Mountaineers are free
Posts: 404
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Re: Hydro Boost Pics
Ogre, Kim, and Hi....what are the pedal ratios and bore diameters of the MCs on your setups? I understand that these are important factors in these setups.
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#27 |
Registered User
Join Date: Jan 2012
Location: Motown
Posts: 7,680
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Re: Hydro Boost Pics
i used the stock pedal ratio from 1958.
after setting up my system i realized i was only using the top 2'' of the pedal. as i am tall with gimpy legs i cut off 3.5'' of the pedal and re-welded the pedal to the arm. my pedal now sits lower to the floor, when i push hard it is stil a couple inches from the floor.
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cool, an ogre smiley ![]() how to put your truck year and build thread into your signature shop air compressor timer |
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#28 |
Tripple Five Fanatic
Join Date: Sep 2006
Location: USA
Posts: 658
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Re: Hydro Boost Pics
If my MC bore size is 1 1/4" can I use the Nissan Quest MC of 1 1/8"? will that cause an issue? My setup is from a 96 Astro Van.
Tri5
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1955 Chevy Stepside/LS1 drive train http://67-72chevytrucks.com/vboard/s...d.php?t=371513 |
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#29 |
Registered User
Join Date: Jul 2011
Location: Auburn ca.
Posts: 2,886
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Re: Hydro Boost Pics
Dave is that a servi-car
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#30 | |
Registered User
Join Date: Aug 2007
Location: Corona, California
Posts: 7,998
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Re: Hydro Boost Pics
Quote:
As far as the bore diameter I haven't checked it yet. My unit came out of a 2005 chevy truck. Kim |
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#31 | |
Registered User
Join Date: Jan 2012
Location: Motown
Posts: 7,680
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Re: Hydro Boost Pics
Quote:
i looked at your build, did not see any pics of the mc nice truck by the way tri5
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#32 |
Hollister Road Co.
Join Date: Apr 2005
Location: Houston
Posts: 6,134
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Re: Hydro Boost Pics
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#33 |
Hollister Road Co.
Join Date: Apr 2005
Location: Houston
Posts: 6,134
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Re: Hydro Boost Pics
I made this conversion a while back on the firewall but the parts are the same
http://www.thehollisterroadcompany.com/hydroboost.html This may be helpful for part numbers |
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#34 |
Registered User
Join Date: Aug 2011
Location: North Carolina
Posts: 275
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Re: Hydro Boost Pics
Well picked up my Hydro boost today it came out of a 04 mustang mach 1. I chose this one over one out of a 03 suburban because of the master cylinder tank was smaller and I think it will fit under the cab better.
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1958 Chevy Apache Stepside 1955 BBW Fleetside |
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#35 |
Registered User
Join Date: Jan 2012
Location: Motown
Posts: 7,680
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Re: Hydro Boost Pics
get the remote reservoir parts off a mercury villager or nissan quest.
i'll try to get a picture of the tank tomorrow
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#36 |
Registered User
Join Date: Aug 2011
Location: North Carolina
Posts: 275
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Re: Hydro Boost Pics
Ok thanks. Do you know what the two bleeders are for on the side?
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1958 Chevy Apache Stepside 1955 BBW Fleetside |
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#37 |
Registered User
Join Date: Jan 2012
Location: Motown
Posts: 7,680
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Re: Hydro Boost Pics
for bleeding the mc.
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#38 |
Registered User
Join Date: Jan 2012
Location: Motown
Posts: 7,680
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Re: Hydro Boost Pics
took these pictures of the remote reservoir removed from a nissan quest or mercury villager.
i bought the mc, tank and lines for $35, had to add 2- 3' lines to it. i tried to keep the firewall clean, but had to add this item. the lines exit out of the back at an angle down, so i managed to keep it low as possible. ![]() ![]()
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#39 |
Registered User
Join Date: Sep 2011
Location: Nevada City, CA
Posts: 908
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Re: Hydro Boost Pics
Anyone running Astro van parts?
Any one else want to throw pic's of whatever they are running for HB? I spent a shade under $75 on Astro van HB / MC setup (at under $75, why not?) and am now day dreaming about how to make it work. The reservoir on the MC is tall, though I think it could still be done under floor. If not, I can always firewall mount it... |
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#40 |
Registered User
Join Date: Nov 2011
Location: Langley, BC
Posts: 702
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Re: Hydro Boost Pics
I'd like to know why it's called "Hydro Boost" which would infer a water operated system and not "Hydra Boost" which would describe a hydraulically operated system (which it is). Can someone enlighten me?
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56 Chevy PU http://67-72chevytrucks.com/vboard/s...d.php?t=531955 Question: Know how to sell your truck for $50,000? Answer: Spend $100,000 building it. |
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#41 | |
Senior Member
![]() ![]() Join Date: Nov 2008
Location: Glendora, CA
Posts: 6,338
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Re: Hydro Boost Pics
Quote:
I don't mean to be dense or critical but why was it necessary to put the MC so far back in the chassis? Not just to access the fill cap, was it? Because it seems like Ogre's remote res would have been a LOT less work than a tilting bed! ![]() |
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#42 | |||||
Registered User
Join Date: Mar 2012
Location: Lakes Region NH
Posts: 3,184
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Re: Hydro Boost Pics
Quote:
When I installed Hydroboost in my 1995 Blazer a couple of years ago I did a fair amount of research at the parts store with catalog and part in hand. All of the GM hydro-boost master cylinders that I checked at that time were 1.25" diameter straight bore including the old integral reservoir steel versions and the hybrid G van aluminum reservoir / steel master types. Increasing bore size reduces pressure applied to the wheel cylinders / calipers. OTOH increasing caliper piston or wheel cylinder diameter delivers more braking force to the drums/rotors with the same pedal effort. Quote:
Quote:
http://www.s10forum.com/forum/f14/fi...-notes-332547/ Quote:
4X4 guys can get pretty crazy with brake swaps and there is probably a year's worth of reading at pirate4X4.com just relating to Hydroboost. Add in the very good tech on designing and sizing your brakes or your vehicle (the brake bible) and there's no excuse for putting together a system that doesn't work right "out of the box." Quote:
![]() Last edited by 1project2many; 09-15-2012 at 10:02 AM. |
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#43 | |
Registered User
Join Date: Aug 2007
Location: Corona, California
Posts: 7,998
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Re: Hydro Boost Pics
Quote:
Kim |
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#44 |
Registered User
Join Date: Jan 2012
Location: Motown
Posts: 7,680
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Re: Hydro Boost Pics
apache: here are the adapters i got from the nissan quest or ford villager
the mc tank pulls out of rubber adapters and these slide in you can also see the outlets on the tank behind the mc ![]()
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#45 |
Registered User
Join Date: Aug 2013
Location: NY,NY
Posts: 107
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Re: Hydro Boost Pics
I just wanted to really thank everyone who helped in this thread,tons of great information here.
As this thread is a couple years old...Any of you guys have any follow-ups on how everything is working,as you put on the miles?Anyone make any changes or modifications to their original setups? |
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#46 |
Hollister Road Co.
Join Date: Apr 2005
Location: Houston
Posts: 6,134
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Re: Hydro Boost Pics
I usually call it hydra boost for the reasons you state but Bendix calls is Hydro boost. We normally think of hydro as water but it can mean liquid or fluid as well.
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#47 | |
Registered User
Join Date: Sep 2011
Location: Nevada City, CA
Posts: 908
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Re: Hydro Boost Pics
Quote:
I think a 70s C10 master cylinder with the integrated iron reservoir would fit better for under-cab clearance but I haven't verified this. It's my only kvetch in a system that seems to work damned well. The 6 lug front disc swap I bought uses 12" rotors & GM "large" calipers. The rears are factory '57 drums. This closely mirrors the Astro Van's brake caliper / MC / wheel cylinder sizes and it works. Pedal feel is good, stopping is excellent. Not to ramble on too long, here, but I sized things relative to each other using factory brake systems as a guideline. The closer you can match an OEM setup the better. There's some wiggle room in the MC selection but not a ton - and I believe Chevy's engineers knew what they were doing most of the time. Any case, the Astro junk works nicely with 1" wheel cylinders and GM "large" calipers.
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"Over my head" 1957 Chevy 3200, big rear window & 6 lug. Front disc, power steering, Vortec 4.8 / 4L60E swap, hydro boost brakes & patina. |
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