Custom Porterfield Drift Z Brake

[johngriff]

http://www.rpsportengineering.com/images/porterfield/porterfield2.jpg

The 300zx brake upgrade is a very common upgrade, but almost constantly overlooked during this upgrade is the emergency brake, and its components. One of my customers inquired to me about upgrades or solutions for the Z ebrake, because like it or not the ebrake is a necessary part of controlling larger and double apex drifts.

Looking around, I have noticed that no companies have taken this issue into consideration either, rather opting to push simple brake pad compound upgrades or conversion kits to hydraulic handbrake and Ebrake setups. While in many regards this may be a more effective setup, it is also expensive.

The Porterfield Ebrake Shoe marks the happy compromise between high quality and high cost when attempting a Drift ready Ebrake setup. The Shoe is re-paded from the oem frame with Porterfields very own R4-S compound, with a little customization at RPSport’s request. The Ebrake drum fitted with this shoe will now work as an excellent turning/drift brake, in comparison to using old shoes with the Z brake upgrade.

This being the first of its kind by request of myself and the customer from zilvia.net took 4 weeks time to complete. As interest peaks I could stock a few of these, other wise the wait time is expected at 4 weeks per order, plus core exchange.

For a long time I have been a big proponent (along with 1000’s of racers and auto-x’s around the world) of Porterfields Cabon-Kevlar brake compound. Specifically the R4. For this Brake, I understood that longevity was an issue because of the time it takes to replace the shoe behind the rotor. At the same the I was not satisfied sacrificing the brake biting sharply. The R4-S Compound was used, and with it, blended in were strands of more carbonfiber to increase the stability and rigidity of the pad surface and increase the bite of the compound.

These tweaks to the compound, along with simply having a racing compound on the ebrake shoe should definitely make for a much more aggressive turning brake, that can bite hard and last through multiple competitions. I am always excited with projects like this (even the little ones) because of the opportunity to do things effective and truly different.


Cool Pics:

http://www.rpsportengineering.com/images/porterfield/porterfield5.jpg
http://www.rpsportengineering.com/images/porterfield/porterfield7.jpg
http://www.rpsportengineering.com/images/porterfield/porterfield6.jpg

[ManoNegra]

Thought I'd seen Endless or Mu (sp?) shoe pads before.
In any case, this looks promising depending on price. Are you at liberty to disclose cost? Have they been road tested yet?

[johngriff]

they will be road tested soon enough. If there is any issue with them, they will be fully covered by porterfields policies.

You can P/M me about a price, I dont want to turn this into a for sale thread, I am just really excited about doing something cool and custom.

[GSXRJJordan]

Awesome John!

One of the major reasons I didn't go with the Z32 rears was the ebrake issue... depending on costs, this might be real, real hot!

[vutony]

GOOD stuff, I had to settle for OEM replacement when I did mine years ago. I might need these soon. Shoot me a price John.

SPL sell rear MU shoes

[articdragon192]

Endless also makes shoes too. Nice to add another option.

[Dousan_PG]

yeah i got project mu ones
2 years drifting on them and they are still locking up AWEOSME PERFECT

but these might be cheaper? (price)

[Flybert]

Yeah, what's the price and who's testing them? I was just going to replace mine with stockers since I know they work well but I do like the way dousan's car feels when I drifted it. Had a little more bite than mine.

[FaLKoN240]

Subscribing to actual cool thread.

I'm interested too, I'm 2 parts away from my complete set up.

[johngriff]

When searching around I couldn't find the MU or Endless. I found the MU shoes on SPL's site this morning. Couldnt find the Endless on Aspec site, maybe logan can come in and drop a link for everyone.

I sent lindsay (flyber) a P/M so he could try a set, aaron and him can do side by side comparisons.

There was two different ways for these to be built, the first was to set the pad thickness to OEM and use a DuPont Cement, which is what is pictured above. The pad is shaped and set to the shoe, then baked in a high temp oven to cure it.

The second way to build them was to rivet them on, but doing so you would effectively lose half of the pad thickness before it got down to the rivets. The most effective solution for someone willing to invest some time fitting these would be to increase the pad thickness well over OEM spec to 5/16th's and rivet the pad onto the shoe.

The guides in the shoe would need to be ground down to sit the shoe lower against the drum.

like so:
http://i32.photobucket.com/albums/d2/vonendorphin/grind.jpg

This is an old historic cup car trick, oversizing the pads, and grinding the shoes down to fit more into the drum.

The price on these is less than the MU's but requires a core exchange because they are not a full production item by any means.

[ManoNegra]

Shoot me a PM with price John.

[A Spec Products]

Endless also makes shoes too. Nice to add another option.

Cool thread John

Corrections:

- Endless doesn't make drum shoes for Z32.
- Project Mu makes drum shoes for Z32.
- Project Mu drum shoes require minimum 20 sets to order.
- Minimum 20 sets to order through the authorized Project Mu USA importer, so I'm sure you maybe could find a set directly from a friend in Japan.
- They are probably out of most people's price range (I say, most).

I've thought about ordering 20 sets but never thought the demand justified stocking them. And let's not confuse INTEREST with actual BUYERS.

[turbocarslut]

Cool thread John

Corrections:

- Endless doesn't make drum shoes for Z32.
- Project Mu makes drum shoes for Z32.
- Project Mu drum shoes require minimum 20 sets to order.
- Minimum 20 sets to order through the authorized Project Mu USA importer, so I'm sure you maybe could find a set directly from a friend in Japan.
- They are probably out of most people's price range (I say, most).

I've thought about ordering 20 sets but never thought the demand justified stocking them. And let's not confuse INTEREST with actual BUYERS.

So...hold a group buy of 20 and we can pay...and you order.

No need to stock...first come first serve.

[steve shadows]

Porterfield is the shit.

Im going back to these after realizing the Hawks are crap.

not these specific ones because I have stock rear calp.

but their composite materials cannot be beat...even if you think they can.

they cant.

project MU are gargbae too. I tried both after leaving the porterfield camp...

and I should be going right back to porterfield in 3..2...1...

[boozels]

^^ + 100 for Porterfields
always a consistent and quick stop
R4s' are a perfect street/track pad!!

[rocksteady_racer]

I'm going to install these. I'm the customer he was talking about. They look pretty awesome. As soon as I get my exhaust replaced and get some tie rods on I'm going to get my car inspected. Then I'm going to install my 300zx ebrake and these. I'll start a thread to tell you guys how it goes. Maybe include some vids or something.

[Flybert]

I'm interested in these but I'm not driving until february. I'd like someone to test them and compare them to stock or project mu. Will this RS-4 compound require them to be warmed up? I'd prefer something that works cold.

[johngriff]

The R4-S will not need to warmed at all, it is good in almost all temps. Instead of using a metal that takes longer to heat, the compound is replaced by carbon/kevlar to make it more resilient to heat, and increase bite.

It is the R1 compound that really suffers under sub 65 degree ambient temps, and since you are cali, you shouldn't have to worry.

[tre]

E-brake is not always needed. Lock differential snapping off the throttle acts the same way. =\

[rocksteady_racer]

This is true, but sometimes I'd like to use the e-brake for 180 or 90 degree turns. I'd rather have a strong product that lasts much longer than stuck rather than stock stuff that breaks early. Plus sometimes you need to use it to change the angle of your drift mid corner.

[Flybert]

E-brake is not always needed. Lock differential snapping off the throttle acts the same way. =

Just letting you know that you have no clue what you are talking about. Shift-locking is the gayest thing since manji drift initiations were invented. Put the drift bible down and watch some drift videos produced in this century. Shift locking was gay before drifting came to America in fact.

[Dousan_PG]

ahahahah
i love to read posers who dont really drive how to 'drift'

get serious.

[turbocarslut]

ahahahah
i love to read posers who dont really drive how to 'drift'

get serious.

WHat...but I learned how to drift in my in car simulator...lol

http://youtube.com/watch?v=yf9NzTBzYUc

[steve shadows]

ahahahah
i love to read posers who dont really drive how to 'drift'

get serious.

shut up aaron all you do is turn in and power over

big deal anyone can fucking do that

[Dousan_PG]

shut up aaron all you do is turn in and power over

big deal anyone can fucking do that

no i dont
adn steve all you do is fucking talk about driving and 'drifting'
come ride w/ me next time, you'll see. u know im always at the track.

get serious
go hld your friends dick who u were post about for so long

he never, as well as you, never showed up for comps

shocking!!!

[SHIFT_Slide]

Watch out Aaron, Steve has huge arms.

[Dousan_PG]

steves a cool dood
but the last to be critiquing anyone on drifting.

if this was about th drag racing or tuning
thats his forte

[steve shadows]

no i dont
adn steve all you do is fucking talk about driving and 'drifting'
come ride w/ me next time, you'll see. u know im always at the track.

get serious
go hld your friends dick who u were post about for so long

he never, as well as you, never showed up for comps

shocking!!!

cus im not a drifter and I have a packed schedule


actually apparently grip is my forte I cant drag race for shit anymore, lost my touch, or maybe I never had it.


seriously though you do just power over and flick

everyhing is manji

EVERYTHING

lol

close your butthole you know I jock aaron

[codyace]

Porterfield is the shit.

Im going back to these after realizing the Hawks are crap.

not these specific ones because I have stock rear calp.

but their composite materials cannot be beat...even if you think they can.

they cant.

project MU are gargbae too. I tried both after leaving the porterfield camp...

and I should be going right back to porterfield in 3..2...1...

The only pads anyone should use, are Porterfields and or Carbotech IMO


actually apparently grip is my forte I cant drag race for shit anymore, lost my touch, or maybe I never had it.

Steve, you need to create the ultimate 2871r car. You do. I need motivation to make mine quicker ;)

[240trainee]

lol, drama drama kids

These pads look sick, would be a nice alternative to Mu pads at a hopefully smaller cost.

[steve shadows]

lol, drama drama kids

These pads look sick, would be a nice alternative to Mu pads at a hopefully smaller cost.

Drama is curbing someone

internet shit talking is not fucking drama

e-drama is a picture of me raping your familiy member or a streaming video of it, not dousing dousans manji skills

[turbocarslut]

e-drama is a picture of me raping your familiy member or a streaming video of it, not dousing dousans manji skills


PRetty foul....sup with that??

[steve shadows]

thats drama

what I said about dousan is not drama

see your actually upset by that

thats closer to drama

[Dousan_PG]

seriously just having fun.

[sillyvia13]

HEY Let Me Know When these are ready, I'll try em!
I got a few months til next season!

[tre]

Just letting you know that you have no clue what you are talking about. Shift-locking is the gayest thing since manji drift initiations were invented. Put the drift bible down and watch some drift videos produced in this century. Shift locking was gay before drifting came to America in fact.

What is the drift bible?

[Dousan_PG]

dont worry
stop giving your 'drift advice'

and dont play stupid
youo know EXACTLY what it is cool guy.

[tre]

dont worry
stop giving your 'drift advice'

and dont play stupid
youo know EXACTLY what it is cool guy.


My playing stupid should be noted as: I know what it is, but have not cared to buy/watch it. And i'll put this as easy for you to understand and hopefully grasp as best as possible. I rarely give advice, because I rarely take it. Personal experience is the only way to develop a better understanding for anything. I just gave my .02 from personal experience. You say its gay, with no proof of your assertion.

And I love how you agree that it works, by introducing the term that describes it that I've actually never heard of in my life. :keke:

[Dousan_PG]

btw
which car do you drive up there? any track pics?

i know quite a few of the NW guys and their events
which car is yours?

[tre]

btw
which car do you drive up there? any track pics?

i know quite a few of the NW guys and their events
which car is yours?

http://img.photobucket.com/albums/v315/SSRtre/crahsed034.jpg
to
http://img.photobucket.com/albums/v315/SSRtre/hotshit.jpg
to
http://img.photobucket.com/albums/v315/SSRtre/thea4.jpg

ANd yes the Audi SHOULD be at the track next year WITH the AWD setup.

[Dousan_PG]

ah cool
awd should be fun

btw
shift locking is never cool or rad.
its always been stupid and lame. thats why no one does it.
ebrake slides are the jam. ask koguchi. haha
he did that shit crazy long at NIKKO when i was there.
i did the ebrake motion, he pulled it for like 2 days

shits amazing.

z brakes are the best thing ever for ebraking.

[tre]

I never learned to use the ebrake because my ebrake never worked to begin with. I could park on flat ground and the car would manage to roll with the ebrake on.

[Dousan_PG]

then i dont think the ground was flat.

[tre]

then i dont think the ground was flat.

Just a comparison to how bad it was :keke:

[McRussellPants]

lol snap differential locking.


get an ebrake.

[steve shadows]

a "drift bible"

is a bible found floating in the waters of Katrina floods next to dead people

like "drift wood" but actually a bible

[MELLO*SOS]

Any idea when these'll be sold? Going z32 rear very soon and would like upgradings!

edit: pm sent..

[2ilvia]

so i guess im a noob but z32 rear brakes are DRUMS? i thought discs were best at braking?

[MELLO*SOS]

rear z32 main brake is a rotor... but ebrake is a drum inside the rotor..

http://importnut.net/240pics/brake_upgrade/brakeswap025.JPG

[rocksteady_racer]

Here's a pic of my 300z e-brake put together. They are going on the car as soon as I get some money for tires and exhaust and get my car inspected.
http://projectrush.net/cars/img/240sr/ebrakesetup.jpg

[240trainee]

Thats badass, I hope these become avalible, I plan on getting some of the R4s pads when I do my brakes this winter, these would be nice, since shit is sticking in my e-brake, need to take it apart and clean everything anyway.

[MELLO*SOS]

John I'll be sending in my ebrake shoes soon very soon... just need to disassemble the other side this weekend.

Lazy/Noob question: what the hell size is the nut on the back of the Z32 backing plate? The large one that holds the ebrake assm on... I'm missing a few of my 20-30mm sockets, need to make sure the next set I buy has the right size..

[bardabe]

John I'll be sending in my ebrake shoes soon very soon... just need to disassemble the other side this weekend.

Lazy/Noob question: what the hell size is the nut on the back of the Z32 backing plate? The large one that holds the ebrake assm on... I'm missing a few of my 20-30mm sockets, need to make sure the next set I buy has the right size..

i think its a 24mm

[johngriff]

Cool, just hit me up when they are sent out, that way I am expecting your package mello.

[MELLO*SOS]

TY bardabe

Yah should be going out monday.. I'll send you a PM..

[Slidin240Wayz]

PM me a price please.