DIY hydraulic handbrake?

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motoman399
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anyone done a home made hydraulic handbrake? im thinking about doing this and wanted to get some ideas? i dont like the z32 e brake system and i have the z32 brakes so i wanna do it drifto style lol. thanks


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poshatch
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i had often pondered this as well, the only solution to a diy hydrolic e-brake that i can think of is to get a master clyinder, block off all but two of the hardlines get some ss lines or some hardlines that go down the consul area and back, the calipers would have to also have a line that split between the foot pedal hardline and the hydrolic line

however, since the lines would be connected i dont know if pulling the e-brake would have an effect on the foot brakes/master cylinder since liquid pressure is shared by all lines due to a split connected line

in addition you would have to sorta create and bolt in a little pivot arm that goes into the m/c for the e brake and connect to a handle

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motoman399
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well i think i have it figured out. i helped install my friends k sport hydro ebrake, and i noticed that the master cylinder is very close to the honda civic clutch master cylinder.

the k sport
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the honda civic
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now when we hooked up his we put the rear brake line into the master cyl and then from there back out to the factory "T" fitting. i went to the junk yard today and picked up a honda master cylinder and with it completely depressed it is flow through both ways. and when you push it in, it is a one way pressure. i think it will work and i will find out!!!! :woot:

the only thing that i want different is the k sport is offered in a 5/8" and a 3/4" MC. i could only find the honda one in a 5/8" but i think that is what we put on my friends s14 and it works killer.

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Silvia_Ks_90
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I'm doing a k-sport hydro handbrake as well because I have R33 GTR brakes. I'll either try to use the stock console and cut it up so everything fits nicely or just make a completely new console from shift tunnel back and carpet it or something. My handbrake kit came with it's own master cylinder, buy from my understanding u can use the dark grey one that's on it, the braided lines provided interupt the rear line, one goes into the junction where the clutchand rear brake line are and the other attaches to the hardline.

If that's not the case and u have to use the MC then the only way it will work is with a custom center console or just none. Which would be uglie unless for drifting.

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motoman399
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ya i was not concerned about the center consul. in fact i just wanted a working hydro hand brake. but thanks for the input.....

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motoman399
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well i found the MC they use, or they are making a copy of it. its the wilwood high volume MC comes in 5/8", .70", and 3/4". i think that the wilwood is a copy of the honda one, slightly modified to fit differently. they are only a little over 50 bucks on their site http://www.wilwood.com/MasterCylinders/ ... rList.aspx seems like a good deal, but i already got the honda one. anyways ill let you all know how it goes when i get to that point.

bllabong89
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^^^^I was looking at this also. I figure it would cost about 30-40 for the metal to make a similar square like the ksport/d2 racing hydro ebrake. All you would have to do is build a square with steel(prolly like 1/4 in. or so), put a pivot bolt into the handle a few inches up, put a hole in the bottom to attach to the mc shaft and than make hardlines or buy s.s. lines. I figure with everything, it would cost around 100+/- a few bucks. I made an autocad drawing while i was bored at work but havent gotten around to trying it. The d2 racing hydro ebrake is around $190-200 I believe so that is the hassel free way.

Image

hope this helps a little bit

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motoman399
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ya that would for sure work for a drift style ebrake. im looking more for a fully functional DD ebrake. one that locks and stuff. so my plan is to use the stock handle and attach a heim joint to it with a rod that goes to the MC. i will be using 1/8" steel plate to make my frame for the MC and then most likely use hard lines for the plumbing (hard lines are cheap)

i bought a heim joint from ebay for around 6 bux (like this one)
Image

i already have the steel plate, MC, heim joint, welder, fab skill. so i think im set. now i just need to get to that stage in my car lol. i was looking at pics of them in google, and i saw this one

Image

its cool because it has the proportioning valve right next to it. i may look in to this later.

here is another i found

Image

thanks for the input. and ill update this thread with any info i find

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s13k1d
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deff will be following this since i to wanna do something like this for my dd.

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wow this is rad.

and considering i need to figure out an ebrake setup for my s12

perhaps i can talk to my fab friend to draw up some design ideas.....

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Razi
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This is awesome Motoman!
Props on the find and good luck on the fabbing!

I want a welder so bad!

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motoman399
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thanks man. i was pretty excited too. im not going to get to try this out till i do my rhd conversion though. so its gonna be a while.. you should invest in a welder, but make sure you do it right the first time and get a good one. no harbor freight ones. they are ok but a Miller/Lincoln/Hobart is far superior!

mike xtreme
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good day, i am new here. i was googling for hydraulic ebrake and i stumble upon this forum therefore i registered myself here...

i have read the previous postings about the use of honda clutch pump, but can anyone tell me which model of honda pumps in particular do i need? thanks ;)

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motoman399
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hi mike, thanks for joining, and welcome. you should stick around a bit, its a pretty nice place.

i got my clutch master cylinder from a 99 ish honda civic. i have seen the same one from 92+ though. when you are looking for one, just make sure it has a threaded fitting on the in and the out.

ps. what kind of car do you have mike?

mike xtreme
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dear motoman399,

thanks for the information on the clutch pump. i'll be looking for that in a few days hoping that i can fit it into my car as soon as possible...i am in need of a better ebrake system because i need it to make correction during a long slide and tandem drift.

anyway i am driving a old skool toyota starlet KP61. i'm kinda out of place here :crazy:

so do u have any updates on ur ebrake setup?

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motoman399
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no, i dont have any updates on it yet. i havent had much time for my car. been too busy with my truck lol. im almost certain that the honda pump will work. if you end up doing it let us know how it turns out. good luck

mike xtreme
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motoman399 wrote:no, i dont have any updates on it yet. i havent had much time for my car. been too busy with my truck lol. im almost certain that the honda pump will work. if you end up doing it let us know how it turns out. good luck
i am certainly gonna give it a try...
in ur opinion, u think i should make it the rally stick style or just mod it to my stock ebrake handle?
if i do make a stick, i can still keep my stock ebrake for parking purposes...

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motoman399
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well if i had a full drift car, i would make it the rally style. but my car will see a lot of street use, so im going to hide the cylinder and lines the best i can. and im also keeping the stock e brake handle. but i am ditching the stock e brake system.

mike xtreme
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motoman399 wrote:well if i had a full drift car, i would make it the rally style. but my car will see a lot of street use, so im going to hide the cylinder and lines the best i can. and im also keeping the stock e brake handle. but i am ditching the stock e brake system.
thats a good point u have there...i will consult the mechanic who is willing to customize all my weird request and c to what extend is he willing to do it for me. hahaha

so motoman, what car and truck do u have?

omgshawn
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You know you're not supposed to use hydro as a parking brake right? and what about your normal e-brake? If you're doing 60mph and you loose your brakes you're f*** because you're e brake is on the same system of your normal brakes, that's why it's supposed to be cable.

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motoman399
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i have a 98 nissan 240sx that is in the process of a lot.. lol

and i have a 87 toyota pickup 4x4 that im rebuilding the engine and turboing lol. the toyota is near done. but the car has a ways to go.

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motoman399
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omgshawn wrote:You know you're not supposed to use hydro as a parking brake right? and what about your normal e-brake? If you're doing 60mph and you loose your brakes you're f***** because you're e brake is on the same system of your normal brakes, that's why it's supposed to be cable.
fully aware on both those things. i have no fears. i have personally used a hydro e brake and i love it. they say not to use it as an "e brake" because it can "bleed off" but it doesnt. plus everyone says that the factory e brake isnt actually for emergency's and it wont stop you in one. they say its for parking only, which i think is a bunch of bull.

but thanks for the input. it should be known before anyone attempts this.

mike xtreme
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i am with motoman, the factory ebrake will only hold u on the slopes, unless u have your ebrake tighten very well, or else u cant rely on it that much...turning off the engine with gear engaged is a better way to slow your car down.

the only thing i am worried about hydraulic handbrake is that if ur passenger have itchy hands n tries to pull it while ur cruising on the highway, u'll be in trouble. other than that, the hydraulic ebrake seems to be the best thing in the world...

while drifting, u just need 2 fingers to pull the ebrake and it is suffice to lock ur rear wheels! i have seen ppl done that... :ohno:

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charat
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just wondering, how much does this actually save you as opposed to just buying a k-sport one?

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barefoot mat
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motoman399
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how is that "/thread"? we are completely aware that there are companies that make them. im trying to make my own on a budget. you can go ahead and buy everything on your car, and ill make everything for mine. :spitout:
charat wrote:just wondering, how much does this actually save you as opposed to just buying a k-sport one?
well it all depends on how you acquire the parts. if i would have waited, i could have gotten the MC for free from a friend, but i wasnt patient and went to the junk yard and bought one. i paid 25 for it and i paid something like 6 bux for the heim joint. then im making the rest. so in total i will only have $31 invested in fully functional hydro e brake. minus the lines which i would still have to buy/fab if i bought an aftermarket hand brake like the k sport or the one barefoot mat posted.

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barefoot mat
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some people can't take a joke.

not to mention you still have to plumb and bleed the brake as well.

and i hope your a skilled fabricator, if you do wan to make everything for your car.

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motoman399
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barefoot mat wrote: not to mention you still have to plumb and bleed the brake as well.
ya i mentioned that. but i would still have to do that even if i bought a pre made one.
barefoot mat wrote: and i hope your a skilled fabricator, if you do wan to make everything for your car.
:yesnod yep, sure am. ill have to show you some of my work. have you seen my slow moving build thread?

motoman-s-amazing-rhd-ka-t-kouki-s14-bu ... 02012.html

stay tuned to that and you will see plenty of fab.

omgshawn
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mike xtreme wrote:i am with motoman, the factory ebrake will only hold u on the slopes, unless u have your ebrake tighten very well, or else u cant rely on it that much...turning off the engine with gear engaged is a better way to slow your car down.

the only thing i am worried about hydraulic handbrake is that if ur passenger have itchy hands n tries to pull it while ur cruising on the highway, u'll be in trouble. other than that, the hydraulic ebrake seems to be the best thing in the world...

while drifting, u just need 2 fingers to pull the ebrake and it is suffice to lock ur rear wheels! i have seen ppl done that... :ohno:

You mean properly adjusted? I can(did) lock my tires up on almost any occasion with the factory ebrake.

And it will eventually bleed off, it's not some magical hydro system.

Why not look into a separate mechanical caliper for parking uses?

Almost all of the cars I've seen with a hydro setup, even hardcore track cars, still have their stock ebrake for parking uses/etc

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charat
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what if say you were buying every part needed brand new? how much would you save as opposed to a brand name already built one?


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