dRift_g0ddess

Soo I got this nifty brake booster delete kit and brake relocation kit for my Ka-t S14..I already upgraded my brakes but needed a bigger bmc & I was having some very serious space issues with the turbo in the bay. It's a full replacement kit of the OEM brake booster and master cylinder. It comes with a 7/8 master cylinder and everything you need to install it.



I'll be installing this weekend (Fri, Sat & Sun). Figured I'd do a write up on installation for those of you who may be interested [:

Exhibit A:
My car


Exhibit B:
The kit.


Tonight is removal of the booster & lines..

Before pics:



yaa don't mind that overboost protection bolt at the end of the vacuum line :]

Start by draining the brake fluid. Then remove booster vacuum line and disconnect all brake lines from the master cylinder. Disconnect the pin that connects the booster to the brake pedal (inside the car) & take off the 4 nuts that hold the booster to the firewall. Depending on your setup, you may have to disconnect the exhaust and/or turbo to get the booster out.. if not the booster should pull straight out. And thats where we're at right now. So far, it's been an hr into it. Heading out to the 24-hr autozone cause I just realized we didn't get the four bolts used to mount the new bmc on the firewall in the kit. Then hit up a liquor store to grab some Monsters for motivation


out




what we've removed so far..

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junn

oh wow real nice

this should be a real nice write up thread

cant wait to see the finish product

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dRift_g0ddess

Got up this morning at 8.. drove around for 3hrs trying to find the bolts that mount the bmc to the firewall ended up finding them at OSH (i believe these are supposed to come in the kit so you probably wont be hunting for them.. no biggie though) Also picked up a 90 degree brass pipe fitting for the custom vacuum block I had made to mount directly to the intake manifold where the old brake booster vacuum line went. Again, drove many places trying to find male to male 1/8in pipe thread to 1/4in pipe thread, ended up finding the right one at Hose Man.



Also picked up a flaring tool for the rear brake hard line.. you WILL need one of these.


Just came across another little issue.. the stock pin that hooks the booster up to the brake pedal is too short for the fork on the new bmc.. so we had to use a bolt instead..

pin


bolt


we're now hooking up the vacuum block :]

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tukn9s

Same kit I have in my s-14, I was missing some stuff too but it's all in and lines are bled pedal is hard, but not to bad. Are you doin the brake line tuck, that's what I did and it really cleans up the bay.

dRift_g0ddess

yeah i got the "through firewall" brake line relocation kit which relocates the brake lines and Wilwood proportioning valve to the interior of the vehicle. I'm running brembos all around so i'm hoping its not too tough to daily :] Are you running stock brakes?

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tukn9s

No z32 frt and rear with endless pads and rf-650 fluid, I had to pull my abs and wiring to, big pain, I was also missing the 3an t fitting in my kit

turbo_dreams

Glad you're doing a write up on this man, I've been back and forth on ordering this, not having any experience with manual brakes. Your zenki looks well done and clean, keep us posted!

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Kouki's & some apple juice.

slideways2004

yeah write back on how it feels to drive. Im really curious to see the difference in driveablity.

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tukn9s

It's not bad, requires a little more effort, but it's not to bad

dRift_g0ddess

Story of the day:
I was expecting some parts for the project which were scheduled for delivery today from FedEx (anytime between 8am-9pm) Out of curiosity, I searched the tracking number and for some reason instead of todays date, the estimated delivery date was now January 25!!! FML! My car's torn apart and I was planning on having it ready for work this Monday x_X So I get on the phone with FedEx and the guy tells me that since I changed the destination address two days ago that delivery time was delayed 24 hrs......do the math. So i'm like "WTF?? Dude this is life or death.. I see it's in Riverside right now and I live about 15 mins away can I PLEASE pick it up!?" he says, "Okay, I can have them set it aside for you to pick up before 3:30pm today in Riverside." Yesss!! So we jump in the truck at 3:00 and jam out to the FedEx on Riverside Dr and as we pull up, it's DEAD EMPTY.... omg. Some dude walking through the lot said he was the security guard and no one was working today, just him and a few truck drivers. So I get back on the phone with customer support and play phone tag with a few people trying to locate my package...as i'm watching the time tick by, they're verifying addresses.. tracking numbers werent matching, pretty much everything that could have gone wrong, Did. Finally, (about 3:50pm) the operator gives me a different FedEx address in Riverside and we scrambled to this other location 25mins away from where we just were..I'm too cheap to pay for internet on my phone so I call my buddy to help navigate me to this other address. We ended up making it just in time but damn.. what a mish.

On to the good stuff.. all the stock brake parts are out and the new master cylinder is bolted up. Talk about clearance!! Now we're marking and drilling the four holes in the firewall for the bulkhead fittings. We will be routing the new lines inside the cab to see how well they fit.

"There are 4 interior lines total. The shortest one (90 to straight) routes to the drivers side front line bulkhead. The next 3 are close in length, 27, 28, and 29 inches. The 27 inch (90 to straight) routes to the passenger side front line bulkhead. The 28 inch (90 to straight) is for the bulkhead tee to Wilwood proportioning valve. The last 29 inch (90 to 90) is for the Wilwood prop valve to rear line bulkhead. The way we setup the rear lines gives you MANY options for proportioning valve placement..."

Pics:

when we tried to take out the stock front hard lines they were a pain so we just cut them out


New bmc mounted.. talk about Clearance!!





This is where the front brake line comes through up to the firewall.



Here's the lines hooked up and labeled where they're going to go.

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dRift_g0ddess

Todays the last day and everythings hooked up. We are in the process of bleeding all the lines right now.. Here's a few pics from last night and this morning:


This is the line with the flare that we had to make for the rears. We opted for this loop-around method because we're trying to keep the A/C working as this is my daily driver. I'm sure if you eliminate the A/C it's a lot easier. You can see the flare we made along with the compression fitting.


This is a pic from inside the engine bay on the passenger side of the front right brake line (left in pic) and rear hardline that we bent around the A/C line.


This is the hardline connecting to the main bulkhead that goes through the firewall right above the throttle cable. We had to move it up about four inches from where it suggests on the Chase Bays website again because the A/C line is in the way.



This is the two bulkheads going through the firewall on the passenger side.. make sure you drill the holes as high as possible from the inside.. we decided NOT to tear apart the interior (dash) so we had a bit of a hard time drilling the holes high up. Don't mind the third hole.. it's for gauge wires


This is the front left brake line going to the bulkhead on the drivers side. The line was a little too long so it makes a loop.


This is the main bulkhead with the black T separating the two front brake lines. We had to tighten all the lines on the fittings before we put it up in there because it was a tight squeeze..


This is the passenger side bulkheads with the lines hooked up.


The prop valve hooked up on the passenger side. It will sit just by the passengers left foot at all times for easy adjustments if needed. There's plenty of line to relocate the prop valve wherever you need it to be.

This is what it looks like tucked in and ready to go :]

At the moment we're bleeding the lines then we'll put it down and take if for a test drive!!!!!!!!!

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Bushido

whats it feel like without the booster?

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godrifttoday

THAT KINDA SUCKS lines are too short to mount closer to driver seat

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NMs14.5kouki

yea im also curious how brembo's feel with out the booster? which brembo's are you running anyway?

dRift_g0ddess

So we just took it out for a spin and the brakes are very very different. They're hard to press..there's very minimal pedal movement.. it feels like pushing my foot against a solid block wall. Idk i'm not positive but I think I may need to re-bleed them or something, when I drove the car & pushed the brakes as hard as I could, I couldn't lock them up when I tried to If you haven't ever driven a car with no booster, I suggest trying it to know what it feels like. We played with the prop valve and it's gonna take some fine adjustments to figure out where I really like it. All in all, it looks great.. it was a pretty extensive install, be sure to set aside lots of time for the installation, but it wasn't impossible. Double check you'r kit to be sure you have all the parts. Chase Bays is really good at taking care of anything you need. They are quick with e-mails and phone calls and are available to help with any problems. A+ for customer service :]
I'm planning on driving it to work tomorrow and i'll see how it feels.. we're gonna take out the vacuum block to tighten a fitting cause there's a small leak but other than that I'm satisfied !


Finally.. the finished product!! here's a few pics of everything buttoned up!






got a couple little other things done tonight >:] hooked up my new gauge pod

the one on the far left

the orange gauge.. -fuel pressure [:


nahhh... (assuming you're talking about the prop valve??) like I said, there is more than enough line to relocate the prop valve to wherever you want it. I just chose that spot because I like it.

for now i'm running stocks in the rear BUT I have everything to hook up 04 Sti Brembos, just waiting for pads. The fronts are Sentra Spec V Brembos, they bolt right up.


Whelp.. after driving it a bit and maybe re-bleeding the lines i'll get back on here and let everyone know how it goes. Thanks for reading and lmk if you have any other questions!

Byee
-Heather

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Om1kron

So in a nutshell this kit still needs some fine tuning, that's all I needed to see.

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dRift_g0ddess

Nahh not really.. it all depends on your setup. I kept my A/C and everything.. Chase Bays has theirs installed on a tore down car with no a/c and no interior. I made it work how I want it :]

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Chase Bays

This is awesome, great to see this.

Hmm we tried to make it super compatible with A/C, either way an under dash install is always going to be a B with everything in.

Remember that your braking system is 95% full of air now it take a LOT of bleeding. We can easily lock our brakes up on our car so you should be able to as well.

PM'd

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Chase Bays

This is awesome, great to see this.

Hmm we tried to make it super compatible with A/C, either way an under dash install is always going to be a B with everything in.

Remember that your braking system is 95% full of air now it take a LOT of bleeding. We can easily lock our brakes up on our car so you should be able to as well.

PM'd

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codyace

I'm unsure how'd I'd like amodern car without power assist brakes. Granted cars forever ago didn't have them, but I can't see this being a wise choice for track oriented cars.

Either way, it's nice setup. Chasebays always does great stuff.

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dRift_g0ddess

Oh forsure, it wasn't bad at all actually.. but as with every product there's always room for improvement I understand it's near impossible to accommodate everyones setup all at once but I think you guys did an amazing job with this!
we're gonna try to bleed the lines a lot more and see what we can get out of em

^very true..but it's not THAT bad. For a purely track built car I probably wouldn't suggest it, but I daily mine and it's nothing you can't get used to by the second stop sign..of course it's gonna be different than power brakes but it's not any worse than my stage 2 clutch.. just kinda balances things out for me and i'm sure the Brembos help too.

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anton1o

Can you let us know how you go after time.. Interested in the kit but want to atleast retain some form of proper brake pedal feel..

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tukn9s

I had to bleed mine like 6 or 7 times before i got all the air out, but ya they are super easy to get use to once you have driven it for awhile.

bb4_96

So it's a no for track days? Any leaks?

dRift_g0ddess

Nope, no leaks :]as far as track day I'll let you know after I bleed like 5 more times and get the pedal feel right

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EightySix200SX

nice man ka-t looks good i reffered my buddy to this thread as his ka-t s13 engine space is limited, nice work man!

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godrifttoday

I driven cars with manual brakes and in my opinion I hate them.... the only reasons I see people wanting to buy them is 1. To get more room for downpipe. 2. Cool factor... I can't imagine the fatigue a person would have on a race track. If their was somehing similar but with help of a booster that would be awesome! Other than that looks nice

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C-unit

are the hardlines stainless? how did you get to flare them? I have the same flaring tools and it doesn't seems to work for the stainless hard lines.

godrifttoday

^
are u using the fitting to create a double flare ?

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C-unit

you mean the die? I did use it for the double flare.

The lines just keep slipping. I've tighten it to the point that the lines are almost crushed..Yet. It still slips.