| Author |
Message |
Cihan Aday
Moderator
etuner.com.au
JZZ30
Posts: 2963
Reg: 07-2005
|
Hi guys,
I wanted to gauge interest in some 6pot 330mm - 400mm big brake kits, and 4 pot 330 - 380mm rear brake kits.
Pricing would be as follows (per pair of brakes);
front/303mm/5*114.3 $1,320
front/330mm/5*114.3 $1,380
front/355mm/5*114.3 $1,595
front/380mm/5*114.3 $2,447
front/400mm/5*114.3 $3,059
rear/286mm/5*114.3 $1,368
rear/303mm/5*114.3 $1,420
rear/330mm/5*114.3 $1,470
rear/355mm/5*114.3 $1,690
rear/380mm/5*114.3 $2,550
We need at least 5 front or rear sets for this pricing.
Standard front discs are 296mm, rears are just over 300mm. Combined with an extra 4 pistons on the front the disc diameter with the midrange 355mm items is just under 60mm these should be a good upgrade.
Included in each Front or Rear kit;
- slotted & vented rotors in your choice of diameter (high temperature rated)
- 6 pot calipers for front, 4 pot rears
- street / circuit compond OR racing brake pads
- mounting brackets with high tensile bolts, braided brake lines etc.
i.e. everything in above pics.
Included brake pad details;
Material : Ceramic + Semi-metallic
Pad coefficient of friction : 0.5
Working temperate : 90c-550c
Available in a few colors also.
- Painted: Red, Yellow
- Anodized: Golden, Black
Also available for JZA80 & JZX90 / JZX100
Website with details;
www.xyz-racing.com |
Cihan Aday
Moderator
etuner.com.au
JZZ30
Posts: 2964
Reg: 07-2005
|
I'll go first!
Cihan Aday : 355mm 6 pot front kit, 330mm 4 pot rear kit - both black
|
Justin Camilleri
Goo Roo
QLD
Had a 85 MZ10, 92 TT, Now 91 TT
Posts: 1100
Reg: 07-2005
|
I wonder what the braking horsepower would be? |
Cihan Aday
Moderator
etuner.com.au
JZZ30
Posts: 2965
Reg: 07-2005
|
If they're any good, it'll be something ridiculous.
Even if kept the standard calipers and pads, the rotating diameter of discs at 355mm or so is %20 larger so there's an immediate %20 improvement (torque = force x distance) on your ability to slow down. The additional surface area of these brake pads and the additional clamping force applied by the 6 piston calipers would amount to much better (%50?) braking performance over stock setup (using OEM brake pad composition). These take the following pads;
AP ZC
Ferodo 3432F
Ferodo 4003F
Ferodo DS2500
Ferodo DS3000
Ferodo DS3000+03
Ferodo DS3000E
Pagid RS14B
Pagid RS42
Pagid RS421
Pagid RS44
Mintex F1R
Mintex F4R
With either the supplied pads or any of the above they would be suited for track work. For daily use, i can't see much of a benefit unless you were going to get Supra brakes anyway (in that case, these cost less or about the same).
Im having a sample set brought in, and a mate of mine in the industry to take a look at them. As far as i know they're not made in China low budget crap. Allegedly used in Europe by a race team they sponsor.. |
Ian Johnston
DieHard
South Australia
UZZ30 GT 4.0, UZZ31
Posts: 894
Reg: 07-2005
|
What size wheels will you have to run to clear everything?? |
Cihan Aday
Moderator
etuner.com.au
JZZ30
Posts: 2969
Reg: 07-2005
|
355mm will need 18", 330mm 17" needed to clear according to their site.
To see if they fit with your wheels, there is a cutout you can print and check with on the website linked above. |
Ben Daniel
Goo Roo
WA
UZZ31 & JZA80
Posts: 2112
Reg: 03-2006
|
Any chance of cross drilled rotors ? |
Cihan Aday
Moderator
etuner.com.au
JZZ30
Posts: 2970
Reg: 07-2005
|
Don't think so Ben.
I know they look good but they're prone to developing cracks, generally not good for longevity. |
Cihan Aday
Moderator
etuner.com.au
JZZ30
Posts: 2971
Reg: 07-2005
|
Update;
I have two others very interested so the tally is 3 sets. Will confirm and add them to the official list. |
Ben Lipman
Goo Roo
NSW
Soarer TT manual, plus TT track car
Posts: 1564
Reg: 04-2006
|
What is the displacement of the 6 piston fronts compared to the standard 2 pots? Will these work with the standard master cylinder? |
Cihan Aday
Moderator
etuner.com.au
JZZ30
Posts: 2972
Reg: 07-2005
|
Ben, they're designed to work with the OEM brake master cylinder.
I'll confirm and ask for some specifications RE displacement. |
Ben Lipman
Goo Roo
NSW
Soarer TT manual, plus TT track car
Posts: 1565
Reg: 04-2006
|
That's OK. My only concern was that the pedal would 'go long' due to an increase in the amount of fluid required by the calliper. If they are designed to work with OEM master cylinder, then it should be OK. |
Cihan Aday
Moderator
etuner.com.au
JZZ30
Posts: 2973
Reg: 07-2005
|
I fear the same thing, so a 'test set' is on the way and this EOI thread will turn into a group buy based on my experience with the kit over the coming weeks.
Im tackling Sandown on September 6th, so these brakes should get a good workout.
Still working out my tire selection, might stick with a second pair of wheels and some semi's or street tires until i can iron out the bugs which are sure to surface with the car (will be the Soarers first time out). |
Ben Lipman
Goo Roo
NSW
Soarer TT manual, plus TT track car
Posts: 1567
Reg: 04-2006
|
I have posted up a bit on semi slicks available in my thread, and others.
I used the printed cutout today. My current wheels wont clear the 330mm fronts I was eyeing off. Having to purchase new wheels makes it a pretty expensive exercise.
If anyone is curious, the Supra 17x8 rims will clear the 330mm kit, judging by the cutout.
Any one want to give me a set of 17x8 Supra rims...? |
Matthew Crawford
DieHard
Victoria
JZA80 Supra weapon!
Posts: 591
Reg: 03-2007
|
Potentially interested in a set of these some time in the future mate.
Any chance you can try out the template on those HR rims if you get a chance? |
Dan McColl
Goo Roo
Victoria (The Nazi State)
Active V8 and a Factory Manual XF.
Posts: 2301
Reg: 07-2005
|
Have these brakes passed any adr or other testing, or are they just cheap chinese brakes??
You also should make the punters aware of possible roadworthy issues, as well as possible legal issues if they crash with these brakes fitted to their car. |
Cihan Aday
Moderator
etuner.com.au
JZZ30
Posts: 2974
Reg: 07-2005
|
Dan, I know what you mean.
To be honest does it seem reasonable for me to take a gamble on a system as important as brakes for the sake of a few bucks? Not likely!
That's exactly why i noted that a trial kit will be examined by a professional and then put to its paces before this becomes an official group buy.
The alternative is there. K-sport has 356mm 8pot brakes for $4,000 US Dollars if you want them.
K-Sport, D2, XYZ etc are all fronts for the same Taiwanese factories run by intelligent western businessmen. The quality is there, the rest is marketing.
Id trust a set of purpose built units over my current 18 year old calipers and overpriced RDA scrap metal rotors any day of the week. |
Ali Saeed
DieHard
WA
V8 Limited
Posts: 745
Reg: 09-2007
|
anyone sell, carbon ceramic brakes :o |
Ben Daniel
Goo Roo
WA
UZZ31 & JZA80
Posts: 2118
Reg: 03-2006
|
I thought Carbon Ceramic brakes were mainly for drag use ??
Depending on when this goes ahead I would be interested in a 355mm set front and 330mm set rear.
Edit : missed the part where you said they were available for a JZA80  |
Ali Saeed
DieHard
WA
V8 Limited
Posts: 746
Reg: 09-2007
|
oh they are essentially fade proof brakes pack for high performance porsches, audis etc. |
Dave Cazes
DieHard
SA
tt
Posts: 554
Reg: 08-2007
|
Cihan, please test a set before you buy them.
A set on a well known soarer here has come up badly.
When bleeded the brakes (2 man) the guy that is cracking the nipple can physically see the caliper flexing when the driver is pumping that pedal.
Brembo and wilwood have many tech articles on how this flex is bad, just please be aware.
Also ask how easy replacemnt discs are, and I understand pads are available, but part numbers are nice,
We receive about 2 emails from XYZ per week, and you are right they are D2.
Have you looked into buying new Supra calipers and reselling them? I would be interested in them. |
Matt Newman
TryHard
QLD
soarer tt
Posts: 121
Reg: 11-2007
|
Dave if your after supra 4 pots email Rory in NZ i bought mine this way and it was quick and painless  except on my wallet at the time lol |
David Grab
Goo Roo
SA
T78
Posts: 1643
Reg: 01-2008
|
Yeah if someone does a wilwood groupbuy i would be keen. |
Adam Peterson
Goo Roo
Western Australia
Supercharged & Intercooled V8
Posts: 2486
Reg: 04-2006
|
Id be interested in a Brembo upgrade but maybe not ABC brand. (sarcasm inserted)
Perhaps we would be better off making the VE HSV clubsport brakes fit ? Those are quite good from the reports i have seen. |
Ali Saeed
DieHard
WA
V8 Limited
Posts: 750
Reg: 09-2007
|
arent those HSV ones brembo? |
Cihan Aday
Moderator
etuner.com.au
JZZ30
Posts: 2976
Reg: 07-2005
|
Sorry i didn't reply earlier guys.
Dave, how much caliper flex are we talking?
I've asked for details of the composition of the alloy they use for the calipers and the response is always the same "squeeze forged aluminium" which quite frankly isn't good enough.
Here's a summary of what a mate's mate in the industry had to say when i spoke with him earlier this week;
"One piece alloy calipers need to be made from the right material otherwise you're better off with 2 piece bolted units. Caliper design also plays an equally important role. (With relation to this discussion) if material quality or caliper design are not up to scratch you get excessive caliper flex. That has the effect of reducing pedal feel, braking consistency and overall reliability. The problem is exacerbated by heat as aluminum alloys lose a lot of their strength at the upper end of the temperature range calipers are likely to get to under circuit/race conditions. You wouldn't want to race a car with badly designed calipers made of the wrong material."
I emailed him a few detailed pics and he mentioned it'd be worth 'testing' a test set if its cheap enough. He seems to think its unlikely there's anything wrong with them, as long as the alloy used is within the industry standard.
Oh well!
What are Willwoods worth? |
Ali Saeed
DieHard
WA
V8 Limited
Posts: 751
Reg: 09-2007
|
a lot i hear |
David Grab
Goo Roo
SA
T78
Posts: 1652
Reg: 01-2008
|
Yeah Wilwood are pricey as hell but damn worth it. |
Adam Peterson
Goo Roo
Western Australia
Supercharged & Intercooled V8
Posts: 2498
Reg: 04-2006
|
Ali, mate im not sure.
I spotted a set of Brabus 6 pots for sale in Europe last year which i drooled over. |
Ali Saeed
DieHard
WA
V8 Limited
Posts: 760
Reg: 09-2007
|
hahaha i was watching some old topgear and brabus put 12..yes thats right 12 pots all round on their sl65 TTv12 |
Aaron Casey
Goo Roo
nsw
'94 jzz30 gttl, 2 mini's one supercharged
Posts: 1230
Reg: 08-2005
|
the ones i fitted to a ve walky were ap racing.. i think they were around 365 front 6 pot and 4 pot 350 mm rear.. they work pretty damn sweet but had to chop the brake dust cover to make them fit. he was going to get the supercharger kit too but instead he gave the car to his wife and bought a 911.. wish i had money lol
id love to get a set but im up for engine refreshment/replacement/displacement upgrade..i actually saw in a magazine a while ago a volvo or something and he had 16 pot front brakes.. went most of the way around the wheel. bit of an overkill |
Ali Saeed
DieHard
WA
V8 Limited
Posts: 771
Reg: 09-2007
|
i mean if your going 200mph in a 1600kg car, youll need decent brakes to pull you up, 8 pots me thinks |
Dave Cazes
DieHard
SA
tt
Posts: 564
Reg: 08-2007
|
Wilwoods are very cheap, they arent used on too many race cars either (like v8 super cars, dtm touring cars etc etc)
To buy the full kits its very dear, but to buy the individual calipers its very cheap, around $500 pr and a max of $1000pr for their 6 piston viper setups.
You just need dog bones and rotors, but its just like engineering a whole new package.
Speak to V sport or hopper stoppers as Im sure they have some bolt on kits avaialable.
I will be doing my big brake kit at some point, they will have 345mm rotors and dog bone adapters, and currently it looks like the set will use land rover discovery calipers. But its not some thing I want to market, as brakes are the one thin i do not want to fail.
Im sure the XYZ kits wont fail on anyone, but they arent an optimum solution. The guys that need brakes that big will need quality items as the kind of motorsport use they do requires top quality brakes.
We had a few customers with similar kits fail because the brake seals on the pistons burnt up and melted, the seals they used was not up to scratch and simply burned away, this leaked all the fluid on the hot rotors and it only went up from there.
If a shock absorber fails you wont crash, but handling will be effected, but if your brakes fail, then you stuffed. |
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