Forums/Z31P/z31-performance-upgrade-forums suspension-chassis-and-brakes/Brake Upgrade Thread
Imported from Z31Performance.com Forums{{#if:Ken in AZ| — original post by Ken in AZ}}{{#if:2006-05-24 22:21:41|, posted 2006-05-24 22:21:41}}{{#if:178| · 178 post{{#ifeq:178|1||s}}}}{{#if:/Z31performance_archive/forum/z31-performance-upgrade-forums/suspension-chassis-and-brakes/164-brake-upgrade-thread.html|
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Ken in AZ: (2006-05-24 22:21:41)
I wanted to start a Brake upgrade thread.
I know most of you have probably done the z32 front swap, but now there are more options since new kits have come about such as the 350Z track rotor swap and new light about the rear z32 calipers fitting, and now even swapping the z32 master cylinder
here are some links for that said equipment
300gt VR-4 Rotor adaptor kit, 12.5" rotor
[archived image: bbr.jpg]
[archived image: bbb.jpg]
350Z Track edition adaptors for the z32 that could theoretically be used on the Z31
http://www.yugobernie.com/brake_adapter.html
[archived image: caliper.jpg]
Apparently this will happen to your pads due to the z32 caliper designed for a smaller diamter rotor…see image below
[archived image: HawkHPSpadweararrows.jpg]
http://www.splparts.com/Parts/S13/Br…es/default.asp
After seeing how the kit mounts to the z32 caliper bracket, I would suppose we need to measure the thickness of the z31 caliper bracket for compatability
Here is the thread from z31.com about the rear calipers fitting
http://z31.com/board/read.php?id=71052&srf=nyet
PDM site for front line adaptors
http://www.pdm-racing.com/products/brakeslines.html
Jasons Page
http://www.redz31.com/pages/brakes.html
Here is a write up about the z32 master to a 240sx, I think it is easier to swap to the z31 than it is a a 240sx, rick88ss has said he has done it already
http://importnut.net/300zxbrakeswap.htm#MC
And here is the z32 caliper write up
http://www.princeton.edu/~asad/zbrakes/
G-E's compiled brake info
http://moredhel.net/3z/brakes.html
oh, and here is a link to ArizonaZcar for the line-lock for a parking brake if you do decide to use the z32 rear caliper or equivilent without the cable pull parking brake, Arizona Z Car also make a complete upgrade kit which could theoretically could be made to fit the Z31
https://dev.z31library.com/extras_archive/www.arizonazcar.com/ Kit Page
[archived image: linelock2.jpg]
And after doing some research, here is the push button Line lock for sale separately
http://www.spidertrax.com/s.nl/sc.2/…it.A/id.620/.f ~$35.00
AP Racing makes 3 kits for the Z32 which theoretically could be made to fit the Z31
http://www.brake-pros.com/specs/AP1145info.pdf 14.5" rotor= ~$2800
http://www.brake-pros.com/specs/AP1100info.pdf 13.5" rotor = ~$2800
http://www.brake-pros.com/specs/30-1100info.pdf 13" rotor = ~$1700
Rear Z32 caliper upgrade
well I slapped them on today…the centerline of the caliper and rotor match perfectly.
The only problem is that the rotor is a tad too small, you can just barely make this out in this shot(i know crappy cameraphone)
the dark orange band is where the stock pad stops, this picture shows how much higher the z32 pad rides above that line where the screwdriver is pointing
The difference on the bottom of the pad(closer to center of rotor) is that it rides about 3mm higher than the stock pad. and at the top of the rotor(farthest from the center) is about 2.5mm above the rotor.
that means something like this might happen
[archived image: HawkHPSpadweararrows.jpg]
I say go for it as the weight savings is massive…only downside to this mod is that you loose your mechanical parking brake
Jason, I don't have the time to do a full write up, but maybe we could do a jont effort to preserve an archive of this info for ourselves on one page incase any of these links go down. I will be trying most of this stuff on my 89, I might not go with the Track rotors just because I think it's overkill, I personally don't think they are necessary unless you are going all out track car, or you're into the bling
I'll be adding info once I get my brakes(just got them off ebay for $190 front and rear z32 calipers) trying to fit the rears to the vented rear rotors and whatnot
Please add your input to make this a great Brake Upgrade Thread!
Ken in AZ: (2006-05-24 23:22:15)
cool, will do with pics when they come in
the z32 rear rotors, if I remember correctly, won't work with the z31 rear due to the z32 rotor having an internal drum for a parking brake
I have been proven wrong before, maybe when I buy my new rotors, I'll compare them at a brake shop or parts store with the z32 style
oh, and here is a link to ArizonaZcar for the line-lock for a parking brake
https://dev.z31library.com/extras_archive/www.arizonazcar.com/
[archived image: linelock2.jpg]
G-E: (2006-05-25 01:05:47)
you are correct
also for the sake of knowing, q45 front calipers are almost the same as 87T+ z31 calipers, the z32 and skyline gt-r and some gts-t all the way back to r32 are the same give or take
check my brakes page http://moredhel.net/3z/brakes.html for rotor info
G-E: (2006-05-25 07:19:03)
also note that the 87 master cylinder is 15/16" .... if you compare that to the 1" or 1-1/16" of the 240sx & z32… that will give you an idea of caliper flow and how stiff the pedal will feel (assuming everything else stays the same)
MikeZ: (2006-06-06 13:03:01)
Thanks Ken. Can I use 87-89 rear vented rotors on 84 rear control arms/hubs?
Do you know if the z32 rear rotor would work?
Ken in AZ: (2006-06-06 15:16:30)
The only thing i know 100% is what I posted
but to better answer your question I need to know if you have 4 lug or 5 lug
if 4 lug, then no…possibly if you got the rotors drilled for 4 lug
if 5 lug, then I'd tenatively say yes, the caliper set-up never changed in the rear, so offset and distance to center "should" be equal.
the key word is "should" because I do not know for 100%
as far as the z32 rotor, I'd say no because they have an integral drum parking brake. I have been proven wrong before. Maybe someone here wants to chime in that has some z32 rotors laying around can send me measurments [archived image: smile.png]
Jason84NA2T: (2006-06-06 15:41:18)
[quote]Ken in AZ wrote:
if 5 lug, then I'd tenatively say yes, the caliper set-up never changed in the rear, so offset and distance to center "should" be equal.
the key word is "should" because I do not know for 100%
THe actual caliper mounting position, bracket, and caliper itself are different for the 87-89 rears. He would need the 87-89 rear control arm to put on the 87-89 rear vented rotors with 87-89 rear Z31 calipers, but it would be interesting to find out if the spacing of the Z32 caliper will 'allow' fitment of the 87-89 rear rotor on an 84-86 hub/control arm.
Z_Karma: (2006-06-13 16:26:35)
I have, laying in my garage a set of 86na rear control arms w/hubs and a set of 87na rear controll arms with hubs/rotors/calipers.
I fit the 87 vented rotors on the 86 hubs and they bottom out against the bolts that hold on the dust shield. I can take some comparison pics, the 87-89
control arm has that extra 10mm at the hub.
Jason84NA2T: (2006-06-13 17:31:07)
That makes perfect sense, the hat height is probably somewhere close to 10MM greater to make up for the 10mm longer hub/axle stub. So unless you could remove the stone shield and have clearance, as well as find a way to center the Z32 caliper on the rotor, I think it's safe to say you can't use the 87-89 rear brake rotors without 87-89 rear control arms. For those reasons, right?
Darthpaul: (2006-06-25 15:05:19)
Hi guys, new poster here. This is the 350z brake rotor kit from SPL on my 87 turbo. The calipers required 7.5mm spacing to center. The brackets are for an S14. The Z32 brackets would require less spacing. The brake pads are above the edge of the rotor by about 3mm.
Please forgive the gold calipers, my inner ricer couldn't resist.
WhiteZ31: (2006-08-04 06:23:15)
just wondering on all sites it explains you need a spacer to mount the z32 calipers on the 87-89 car but is that with the na or turbo hub? or does it make any diff? thanks in advance sorry if it has been answered and i accidently didn't see
G-E: (2006-08-04 06:48:24)
the non-turbo hubs have a wider outer diameter and shorter studs… both of these go against using any slip-on rotors.... that's the only reason really
domingo: (2006-10-01 17:32:40)
Re: driveshaft mounted parking brake
this is the brico of my z31 to place the brakes to him of z32 but being changed the front disc by one of evoVIII of 320mm.X32mm.
sorry for my bad inglish [archived image: redface.png]ops:
and this is the difference of diametro of those of z32:
and this is the difference of thicknesses of z32:
and asi as they were
and the braking regulator the e placed in an accessible site but hidden wing time
and this is another one inventillo to be able to place the clamps of z32 atras since those of series it goes with cable and this with I eliminate and asi to be able to use the hand brake
mark86t: (2006-10-18 05:04:24)
I'm just curious as to who is getting brake fade using TT front brakes & 88 rear vented brakes???? I track & autocross my car with the TT fronts & 88 rears with NO brake fade whatsoever. My car rips down speed phenominally as well. 20 minute sessions on a 3.5 mile road course with 28 corners in the Vegas heat. No brake fade. I guess I would have to drive someones car with larger rotors (like 3000GT) and/or 350z front calipers and/or TT rear calipers to see if there is a difference. I don't even use the TT master cylinder. Just my stock 86t MC. Just curious who is experiencing brake fade.
mark86t: (2006-10-18 13:47:29)
I use Motul, motorcycle brake/clutch fluid. Expensive but worth it.
zmech: (2007-01-01 20:36:37)
z
MikeZ: (2007-03-27 13:54:03)
My findings:
The z32 rear caliper on the 86 NA suspension isn't a good match after taking a closer look. The caliper bolts up fine, but the spacing just isn't there and the rotor thickness is way off as someone mentioned above. You can't use the thicker vented rotors without swapping to a later model control arm (87-89).
After seeing that it wouldn't work with the 86 NA suspension, I swapped in 88t rear control arms with 88t vented rotors. I bolted the caliper to the bracket with just using a lock washer on each side and the spacing is just about dead on (the rotor is centered in the middle of the caliper with pads). This should be the preferred way to do it.
PDM racing makes a conversion brake line kit for the 240sx guys putting on z32 brakes. I am using the front line in their kit for the rear setup in the z31. I just ordered their rear lines as I think I can route the lines better with a shorter length. I will try and put up some pics tonight.
Chris86NA2T: (2007-04-08 21:31:55)
hey mark.. just a few comments on brake fade.. i was at limerock saturday.. its a 1.5 mile course with one serious braking zone and a few other sections that require small taps.. ive driven this track countless times and the brakes have always been fine.. yesterday was the first time i drove the track with the ammount power my car has now (329 horse, 411 torque) and the brakes faded after about 8 hard laps.. i have TT front calipers with brembo drilled TT rotors, rear z32 calipers on 88T vented disks. i use porterfield R-4S pads and ATE blue fluid. the first thing im going to do is try a set of R-4 full race pads, but im also looking into caliper adapters for bigger rotors, and finally getting my act together and making some ducting.
mark86t: (2007-04-09 03:11:03)
I have the same brake set up as you but run Motul brake fluid & Hawk HP plus pads. Last dyno I put down 330whp & 409wtq & run the 3.5 course at Pahrump. No brake fade as of yet. 90+ degree heat at the track as well. I have no brake ducting but I did make an underpan for the front of my car. Mostly to get air directed into the I/C & radiator but it does direct air into the wheel well & to the brakes.
- Oil cooler has since been moved from the wheel well to the front of the car for better heat transfer.
Chris86NA2T: (2008-02-26 04:39:10)
just wanted to share my experience with my recent front brake upgrade. my existing setup was z32 calipers and rotors on 87-89 turbo hubs. last spring i melted this setup as described earlier in this thread. i finally got around to making some changes
i purchased these adapters: http://www.jskinnovations.com/300zxCalBrkt.htm
and these rotors: http://www.autopartswarehouse.com/de…35USR7122.html
i also went from porterfield R4-S pads to straight R4s for the track
If you recall, in order to properly fit the TT calipers to the front of our cars they need to be shimmed slightly with a couple washers in order to center them over the rotors. the same thing applies here, except you need to put the shims between the adapters and the strut. as the web site for the adapters suggests, the entire pad comes in contact with the rotor. there is no pad overhang. in order to achieve this, you have to do some slight grinding on the inside of the caliper where it comes closes to the outer edge of the rotor.
one more important note is that the hat of the 350z rotor is slightly shorter than the stock or z32 rotors. this tucks your wheel a bit closer to the strut. i didnt take an exact measurement, but my guess would be no more than 3mm. here are before and after pictures:
[archived image: Picture7.jpg]
[archived image: Picture008-1.jpg]
now i can just barely get my fingers between the caliper and the inside of the wheel (i have pretty chubby fingers). i havent done much road testing yet, but everything feels fine so far. i have z32 rear calipers on the car with the stock z31 master cylinder. if i find that i have bias issues im going to first try a z32 master and then a proportioning valve. as of now i dont think there will be a need. so far i am very happy. i highly recommend the JSK adapters, the fitment was excellent.
jtz31ae: (2008-06-18 19:35:18)
The new parts arrived from ArizonaZCar. Everything looks great and fits fine with the 84 hubs. The 66mm flange on the hub doesn't protrude very far past the new rotors, but Dave says it shouldn't be an issue.
Bled and road tested fine. Wow. Nice upgrade.
s12dave: (2008-07-22 20:39:53)
I got a new Idea for mounting z32 rear brakes. The Infiniti M30 came with the same style rear suspension as the z31 but it had inboard drums for a parking brake. You may be able to use parts from the M30 to let z32 rear rotors bolt up.
This is just an idea I had and I haven't looked into it much, but somebody should check it out.
- I just looked back at some of the other threads and patzx300 posted his m30 with z32 brakes, but nobody really took notice.
s12dave: (2008-07-22 20:50:30)
Also I just wanted to add this in.
http://www.gtrblog.com/index.php/2008/0 … e-g?blog=4
I'd assume this follows the same logic as the 350z brakes. If these fit the r32, which is the same as the z32, and the z32 brakes fit the z31, then these should fit the z31.
zed-031: (2008-08-01 12:45:24)
OK mine are done, R32GTS-T calipers with Brembo decals on which I sourced from Japan. Project U SCR PurePlus 6 rotors, TRW Lucas pads and Lucas Grand Prix 600 brake fluid. 20mm hubcentric spacers for caliper clearance.
Before…
[archived image: DSC00272.jpg]
After…
[archived image: DSC00275.jpg]
[archived image: DSC00276.jpg]
[archived image: DSC00277.jpg]
phates: (2008-08-05 19:12:03)
if anyone has these sitting around and could trace them out onto a sheet of paper for me and tell me how thick they are i may be able to get them cut and it would coast a hole lot less then the 150$ granted they wont look as pretty but hey that's what paint is for right. Only reason why I ask is because i have a set of VR-4 calipers and rotors sitting around not getting any use so figured i'd try to find something to do with them
300gt VR-4 Rotor adaptor kit, 12.5" rotor
[archived image: bbb.jpg]
JimmyZ89: (2008-08-09 22:53:25)
Here's a video link of zmech's Wilwood 12.9" set up, very nice [archived image: redface.png]uioui
zmech: (2008-08-14 14:11:33)
Wilwood Write-up
z
Kennedy: (2008-09-19 09:03:19)
http://www.jskinnovations.com/300zxCalBrkt.htm
http://www.conceptzperformance.com/C…56193.93.136.9
Anyone know other companys that sells adapter that 350Z Brembo dics can be used?
[quote]zmech wrote:
The new parts arrived from ArizonaZCar. Everything looks great and fits fine with the 84 hubs.
Now time for the rears…
I send AZC email asking about rears. I suggested these ->
http://www.wilwood.com/Products/001-…-cpb/index.asp
He wasn't intrested using those, but didn't say if he is going to make with some other caliber.
I need to have working mechanical handbrake to pass year inspections.
Kennedy: (2009-02-16 20:50:51)
Just adapter i think.
Z32 is 99% bolt-on. You just need washers to move caliber back. Correct offset for brake disc and not even those washers are needed.
adamvann3: (2009-03-03 16:33:01)
Some good info that I don't want lost… credited 1sickz on find and DeleriousZ for rebuild links
Z32 quad-piston caliper rebuild information
z32 caliper rebuild how to:
http://www.nicoclub.com/articles.php?id=215854
link to small o-rings for caliper halves:
http://www.z1motorsports.com/product_in … ts_id=3018
full rebuild kit:
http://www.z1motorsports.com/product_in … cts_id=715
Rebuild '(Nicoclub.com by 94_240sx)
Overview:
The 300ZX calipers are a popular upgrade from the 240sx, and most of the time, the calipers we get are used and worn… Not much of an upgrade if they don't work properly, right?
For the purposes of this article, we're going to rebuild some aluminum 30mm Z32 calipers. The 26mm calipers can be rebuilt using the same process.
Difficulty: ***
Time: 1-2 hours
Cost: < $20
Tools:
- socket wrenches
- breaker bar
Materials:
- brake cleaner
Remove clip from 2 pins in the back. Pins that are holding pads will slide out from the front.
Pads, clips and pins will come out easy and they will look like this.
If you just want to replace worn out or torn boots, you don't need to go further. Just remove boots, clean up and reinstall new boots, clips and pins that are included in most rebuilding kit.
If you want to powder coat your calipers, move on!!! I used breaker bar to remove big 4 bolts in the back. I stepped on the caliper and did this.
They were bolted on pretty tight.
Then remove 'O' clips and rubber boots that protect the pistons. You will also see 2 small 'O' rings between two halves. Everything is out except pistons in below picture.
Now, it's time to remove the pistons. I spoke with 4 different powder coating shops and all of them asked me to take the pistons out, so I can tell they don't want to powder coat calipers with pistons in.
Front half has 2 holes and the back has 3 holes. One on the back is for the brake line. You block holes and blow air in using air compressor. I used hand held 2HP compressor and it worked just fine. Get a trash can and put some newspaper and towel, so piston won't get damaged. They will come out loud and fast.
One piston will come out first, so use vice to hold that one and pop the other one. You really have to be careful here. You don't want to get hurt.
Picture of back half. There are rubber seals in the middle of the cylinders, so don't forget to take them out. Be careful and don't make any scratches on the cylinder wall.
al1IQ62w0470VaH4Jw.jpg" alt="" />
I cleaned them up really good and shipped these 8 pieces to powder coating shop.
Came back like this one week later.
This is the kit that I got from one of our Nissan OEM parts suppliers. This kit should be universal for all z32 front calipers. I had a used set of rear calipers, but they were in very good condition, so I didn't buy a kit for the rear.
New pistons, seals, boots, clips and 'O' rings…
This is the seal that goes in the middle of the cylinder.
Push the pistons back in like this.
Put small 'O' rings between 2 halves. Okay, here's the deal. These small 'O' rings were not included in the kit. I saw someone bought them from ACE Hardware store though. I just reused old ones. They seemed to be okay. You need to lubricate all the rubber parts.
Install new rubber boots, big 'O' clips and 4 bolts to complete.
ZMIKEMAN: (2009-04-06 01:59:35)
Just a quick post to point some things out I found in my Z32 Swap (30mm Aluminum Calipers, OEM Z32 Rotors, Z32 SS Lines).
1. Early z31 dust shield won't work with the later model hubs
Maybe something was said about this and I probably missed it but the inner dia of the brake dust shields are to small for the later model hubs to work. You can bore this out or remove them, otherwise your bearings won't seat properly and you wouldnt want to drive it like this.
2. I used about .2" of washers to center my caliper on my 84AE (Using 16" OEM wheels) and OMG no clearance issues. I can fit my finger between the caliper and the wheel and spin it around and it will just graze my finger. I was very suprised considering some of the clearance issues and possible grinding on some accounts.
3. Using stock master cylinder and I have to say I was worried based off some post about the pedal softening up however the pedal feels great. Just a hair softer however the improvment in overall performance is noticeable. Especially after bedding in the pads. I was running z31 SS lines before, and am using Z32 front ss lines now w/ no issues.
Steve88t: (2009-04-06 02:46:07)
86t/AE wheels have a lower offset than the 87+ 16" wheels. That probably has to do with the difference in clearance from the wheel to the caliper.
SATAN: (2009-04-17 04:03:25)
I was running 30mm z32 calipers with my 88 turbo wheels. We also test fit my buddies 87 NA 15" wheels just to see and, yep they cleared as well…
SATAN: (2009-04-23 05:26:04)
[quote]MrFishHat wrote:
Yes, toyota 4 piston calipers from a 1992 4runner. ........ Either way, the big brake kit is GOING to get done.
Any updates?
I am really interested in this setup since my JY doesnt have any z32's or any other real decent cars to scrounge from for that matter, HOWEVER they have at least 6 4runners.
Also to anyone who has used the arizonazcar wildwood kit, what have you done for the rears? If I had 1400 to spend on a brake upgrade it would be that one, but I would like to deal with the imbalance of those vs the rear stockers.
Nah, I ditched that project.
What I did end up doing was…
350z track rotors 12.75"
1990 TT 30mm caliper ($100 rebuild's at checker. $50 if you have a core!)
and just a regular 240sx spacer for the 350z track rotors.
This gets you a pretty good setup. The pads do hang off the rotors slightly but… whatever.
You also have to put some spacers in between the 240sx spacer and the 30mm caliper to get it to center over the rotor. Other than that… Looks great, don't know how well it works yet. I have some Hawk Hp pads that should grab the rotors pretty damn well.
Kennedy: (2009-07-31 14:41:25)
My friend just asked brake kit from AZC. They still sell Z31 packet. Atlease he got an price quote shipped.
Kennedy: (2009-07-31 14:46:21)
- Wheeeeeee*
New brakes installed.. Skyline R33 GT-R Brembos. 324x30 discs and Z32tt 17/16" MBC
Now it actually feels like stopping. Last friday i was in racetrack and love those 8)
Neil86t: (2009-07-31 22:09:46)
Cute rotors kennedy :-D
Here is mine. I am using the later style hubs. Wilwood kit from Arizona Z Car. 6-piston calipers, 13" rotors and stainless lines.
PBGV: (2010-01-03 04:52:48)
I've been reading this thread for a while and I just finished a front caliper and rotor swap on my 87. I also bought new rear calipers. I don't want to lose my e-brake, and I realize that the backing plate for the shoes obviously won't fit directly on the stock knuckle. Does anyone know if it's possible to fabricate a way to mount the z32 backing plates to the z31? I'd love to make this work so I can have a unified look to the car, not to mention slightly better braking.
Mitchd03: (2010-01-04 18:03:13)
How similar are 280zx brakes to an 84 n/a Z31's?
Looking at the images of brake upgrades offered by Arizona Z car for the 280zx, they share the same basic hub design on the front. Anyone got a 280zx and a 4 stud z31?
This is the image that has made me curious:
[archived image: 510-9.JPG]
Further investigation appears that vented disk 4 runner 4 pot brake calipers and n/a z31 rotors work together on a s130, with a spacer between the hub and brake rotor… So the other way around must be true, just with a spacer on the caliper instead.
I think I'm on to something here.
adamvann3: (2010-01-04 23:26:02)
Yeah, you just proved that Arizona Z Car provides a Wilwood kit for the z31. Also you can make any caliper from any car work with a caliper spacer and proper rotor.
PurePontiacKid: (2010-01-05 04:34:55)
Most of the stuff for Z31's is an upgrade for 280ZX's, and most of it is actually bolt-on.
using the Z31 hub, I belive, is only for S30's (which have non-vented rotors) I think you may be able to use the stock 280ZX hubs if doing the swap on an S130 (test fitted in the junkyard, and it doesn't fit, so the spacer would still be needed…
imho, if you want to keep the 4 lug, just do a pad and rotor change/upgrade, as the Toyota calipers actually have less surface area on the pad (they only have "more clamping force" which I would think would only make things worse [hotter] on a dinky 10" rotor)
Mitchd03: (2010-01-05 08:47:00)
What I meant was, could using the 13" brake rotor designed to fit the 280zx from AZC on a 4 stud z31 with the Wilwood caliper kit that Neil86t has work together?
PurePontiacKid: (2010-01-05 18:31:20)
buy it and see lol I'm not sure, and I'm also not too sure why you would want to stay with 4 lugs…
Neil86t: (2010-01-05 23:33:54)
Agreed. If you are gonna drop some coin on a BBK you might as well go 5 lug.
adamvann3: (2010-01-05 23:53:17)
You can re-drill rotors to 4 lug. S13 guys do it all the time.
But yeah, if your gonna drop coin on a BBK go 5 lug conversion.
PurePontiacKid: (2010-01-13 20:09:18)
Hey just a quick question and didn't want to start a whole new thread for it:
Will the late two piston calipers/brake setups clear 14" steel wheels?
Mitchd03: (2010-01-14 16:31:42)
My stock brakes don't clear 14" steel wheels…
Well, rear ones don't, didn't actually try the fronts. (I forgot front brakes are smaller)
michaelp: (2010-01-14 16:38:43)
I can verify 4runner 4piston calipers will NOT work on a Z31, the mounting points do not line up anywhere near close. If they did, I'd have them on my Z31 /w the stock Z31 rotors (which are the proper sized rotors for 4Runner calipers)
PurePontiacKid: (2010-01-15 03:07:26)
do you mean spacing-wise (distance between the holes) or offset-wise (caliper centered on the hub)?
Loomis: (2010-02-02 00:09:11)
Whewww… so many different brake ideas going on around here! lol
I've read some talk of machining front hubs.. technically, I should be able to turn my 85T front hub into something useable for a slip on rotor… correct?
and since most of these posts are pretty old, and spread all over, its getting a little hard for to extract all this info into what I actually need… pardon my ingnorance!
What I "think" I've gathered, is that I can machine my hubs (87-89T is a little hard to find here in any so cal wrecking yard), and run a Z32 rotor and caliper, or even a 350z setup, and all I will have to do, is shim the correct caliper spacing and trim the rock guard (already running 17's and 1" spacers).
The rear is a little trickier though.. and since swapping the rear arms or subframe is more of a pita, than fabbing new caliper mounts, is there a prefered caliper for a stock 85T rotor?
If I have anything wrong, PLEASE enlighten me.
Thanks!
michaelp: (2010-02-02 03:37:30)
Distance between the holes.
PurePontiacKid: (2010-02-03 05:09:07)
Then that means Z31 calipers won't work on S130 strut tubes [archived image: redface.png]uin :soupir
oh, and something to think about, anyone try Infinity Q45 calipers? they're two-piston and are the wrong spacing for S130 struts, so maybe they'd fit on Z31's?
Racinjitter: (2010-02-03 08:23:24)
^Yes, early (G50) q45 calipers bolt on. J30 calipers bolt on. Both are twin piston.
adamvann3: (2010-03-07 21:42:55)
Re:
Anyone have any information on the offset between the z31 to s13, s14 and z32
All that I really know is that there is a positive offset between the z31 and the above car where shims are needed and that the z32 has a lesser offset. I am just guessing on the s13 since they use z32 calipers as upgrades as well.
Any info would be appreciated. I am still trying to explore other braking kit options.
Smn2k7: (2010-03-25 00:36:55)
Just figured I'd add this, maybe it'll help someone in the future. I've heard of some people getting the z32 1 1/16 master cylinder with a flare behind the plug, while most have no flare and either have to install one or use a T.
I just got a CARDONE Select master cylinder for 1990 300zx Twin Turbo from Rockauto.com and there is a flare behind the center plug. i can't guarantee all of them are like this, but, hey, it's worth putting up I think.
Darthpaul: (2010-03-25 01:32:38)
Re: Re:
[quote]adamvann3 wrote:
Hi guys, new poster here. This is the 350z brake rotor kit from SPL on my 87 turbo. The calipers required 7.5mm spacing to center. The brackets are for an S14. The Z32 brackets would require less spacing. The brake pads are above the edge of the rotor by about 3mm.
Anyone have any information on the offset between the z31 to s13, s14 and z32
All that I really know is that there is a positive offset between the z31 and the above car where shims are needed and that the z32 has a lesser offset. I am just guessing on the s13 since they use z32 calipers as upgrades as well.
Any info would be appreciated. I am still trying to explore other braking kit options.
I will try to measure the distance of the long part of the "L" on the bracket. The Z32 style brackets look to have visibly less offset, which would be better. A measurement of the Z32 type would be neat. The JSK brackets look like the slickest setup for this type of deal. Don't know if he still makes them. Some folks don't like the design of them though....don't know why......
Someone(not my broke ass) needs to do the Concept Z 370z sport brake kit on a Z31.......
adamvann3: (2010-04-04 16:42:57)
Thought I would post this up since I looked into it heavy when researching a bbk to go with.
Z1's Brembo Brake kit for the s13
http://www.z1motorsports.com/240sx/prod … ts_id=4176
Simple bolt and go (with shimming of course).
Facts:
$698.00
Rotor -- 305mm in diameter only 22mm wide
Caliper -- Brand new brembo 4 pots
Now I never took the time to ask them about piston sizes ect… since the rotor width is weak sauce. If these were anything close to 30mm I would have probably gave them a shot. Z1 just mounted these on an s13 that sees street use and got favorable results. They have not yet been on the track but looking to do so soon.
Maybe someone will give them a shot.
Fuzzcheek1: (2010-06-13 15:35:44)
I'm pretty sure this is the only place I've ever seen this posted, so I just wanted to make sure. Can anyone else that's completed this swap confirm this information? Even Jason's site doesn't make reference to removing the dust shields.
Racinjitter: (2010-06-13 16:45:21)
I can confirm that the 87-89 turbo hubs will rub on early spindles/brake dust shields. However it will not cause the bearing to not seat properly, it will rub. I simply removed my shields. Also if you upgrade to z32 brakes you will have to cut your dust shields to clear the calipers.
Neil86t: (2010-06-13 18:12:19)
+1 This is true. I had to cut off the whole shield to seat the 87-89 hubs on my 86T spindles for my Wilwoods.
adamvann3: (2010-12-09 01:02:30)
Found this info on another forum, thought it would serve well here as well
Front Disc-------Diameter---Height---Thickness--Min. Thick.--Center Hole
S14---------------10.12-----1.93------0.87--------0.79----------2.68
300ZX TT---------11.02-----2.13------1.18--------1.1-----------2.68
350Z Brembo------12.76-----1.93------1.18--------1.1-----------2.68
370Z Brembo------13.96-----1.95------1.26--------1.18----------2.68
94+ 3KGT VR4-----12.36-----1.79------1.18--------1.12----------2.72
Mustang Cobra----12.99-----1.71------1.1---------1.04-----------2.8
Lancer EVO IX-----12.6------1.71------1.26--------1.17----------2.72
Lancer EVO X-----13.78-----1.73------1.26---------1.18---------2.72
R32 T : 280mm x 26mm (single pot sumitomo caliper)
R32 GTS-T (early) : 280mm x 26mm (single pot sumitomo caliper)
R32 GTS-T type m : 280mm x 30mm (4 pot sumitomo caliper)
R32 GTR : 296mm x 32mm (4 pot sumitomo caliper)
R32 GTR VSPEC : 324mm x 30mm (4 pot brembo caliper)
R33 GTS-25 : 280mm x 26mm (single pot sumitomo caliper)
R33 GTS-4 : 280mm x 26mm (single pot sumitomo caliper)
R33 GTS-25T : 296mm x 30mm (4 pot sumitomo caliper)
R33 GTR : 324mm x 32mm (4 pot brembo caliper)
R33 GTR VSPEC : 324mm x 30mm (4 pot brembo caliper)
R34 GT : 296mm x 30mm (4 pot sumitomo caliper)
R34 GTT : 310mm x 30mm (4 pot sumitomo caliper)
R34 GTR : 324mm x 32mm (4 pot brembo caliper)
Z33 NA : 324mm x 32mm (4 pot brembo caliper)
Z32 NA : 280mm x 26mm (4 pot sumitomo caliper)
Z32 TT : 280mm x 30mm (4 pot ali sumitomo caliper)
S14, S15 : 280mm x 30mm (4 pot sumitomo caliper)
Bremsen: (2011-01-07 19:17:21)
I'm looking to do a front and rear Z32 swap on an 88NA. Setting up for track use and need better race pad availability and some unsprung weight reduction. I've read (can't remember if it was this thread) that the J30 hubs might work as a substitute for the hard to find turbo hubs. Has anyone been able to confirm/deny that they will work?
z31man: (2011-01-30 18:07:25)
I've read a lot of what you guys have posted and I'm a noob when it comes to car term so im going to ask you guys for your opinion on the most efficient/less cost expensive set up for my stock 88t. Not planning on tracking anytime soon just feel like upgrading the old brake set up with some ss lines. I was thinking maybe z32tt front swap considering it seems to be the easiest just trimming.. As for the rear I don't quite understand what you guys are posting and again sorry if I do not understand the basic things you guys are putting out there.
adamvann3: (2011-01-30 18:20:10)
If you dont plan on tracking your car and just use to 'cruise' around in just use a really good pad and SS lines. The twin piston calipers are more than capable on the z31
z31man: (2011-01-31 05:50:37)
I drive an auto just want feel like upgrading the brakes just because its about that time I might as well upgrade them too. Correct me if I'm wrong the z32tt caliper is direct bolt on and in order to make the rotor plus caliper sit correctly I must either shimmy or remove my dust shield. Then after that is there anything else I have too do? Do I just remove my brake set up and just look at everything I'm removing and reinstalling it to the z32 parts? Is it that simple or am I missing something.
adamvann3: (2011-01-31 23:54:20)
Shim and trim the dust shield. You will either need conversion lines or take your z32 calipers apart to take out the bushing to use your z31 lines
z31man: (2011-02-02 19:43:31)
[quote]adamvann3 wrote:
I drive an auto just want feel like upgrading the brakes just because its about that time I might as well upgrade them too. Correct me if I'm wrong the z32tt caliper is direct bolt on and in order to make the rotor plus caliper sit correctly I must either shimmy or remove my dust shield. Then after that is there anything else I have too do? Do I just remove my brake set up and just look at everything I'm removing and reinstalling it to the z32 parts? Is it that simple or am I missing something.
Shim and trim the dust shield. You will either need conversion lines or take your z32 calipers apart to take out the bushing to use your z31 lines
so in other words I buy z32 rotors find a use z32 caliper and buy this ss brake line conversion ? http://www.pdm-racing.com/products/brakeslines.html
adamvann3: (2011-02-02 20:15:00)
Yup, I used these
http://www.frsport.com/DIF-10042-300ZX- … 15334.html
james: (2011-02-26 05:14:47)
Z32 4 Pots and 280x30mm rotors
USING 85 Turbo Hubs
Full write up here & works with factory wheels
viewtopic.php?f=24&t=26792
Matt89: (2011-02-26 05:56:18)
I have an extra set of 88t front hubs. PM if interested.
james: (2011-02-26 06:32:20)
NA Hubs can be made to work easily enough if you can't get a set of 88 Turbo hubs, I have no idea about J30 hubs but Russ84NA is using 84 NA hubs with slip on rotors and I am using Slip on rotors with 85T front hubs. See the link I posted bottom of page 4
Bremsen: (2011-03-02 14:29:11)
Ended up buying a whole parts car that has the turbo hubs. Thanks for the offer though, matt.
James, yeh I saw Russ' thread after I made the post and was looking at getting them machined.
I'm using 88T hubs and discs with 26mm Z32 calipers. From my research this should be a straight bolt up with no shims required. Decided just to keep the rear calipers, not worth the $$ to swap.
james: (2011-03-03 06:25:56)
shims and such are only required for converting early style hubs, you are correct everything bolts up. If in doubt see Jasons writeup on redz31.net
DMANN: (2011-03-06 20:30:18)
Don't know if this helps but…I did the S13 swap, and Z32 alum. knuckles. with Z32 calipers in the rear.
Used z32 rotors and everything worked fine.
Since I had almost new Z31 brake flex lines I reused them on the Z32 calipers.
Used this for about 8 months now with no troubles!
adamvann3: (2011-05-25 03:13:48)
Wilwood Forged Superlites
Piston Diameter: 1.620 in x4
Rotor Thickness:1.250 in
Pads: 150-8854K
Lines: Wilwood s13
Rotors: 350z Track Rotors (12.76")
Custom caliper spacer
Only compatible with late turbo hubs (or modified other)
Needs z32 BMC or equivalent to gain firm pedal
Taris Blue: (2011-05-25 12:20:25)
Maybe it's an optical illusion, but it looks like there is pad overhang with the Wilwoods…confirm/deny?
RXGhost: (2011-05-25 15:14:49)
Looking at his other pictures I see the same
were you able to correct that Adam?
adamvann3: (2011-05-25 22:38:33)
There is zero pad overhang. That was the only picture I have currently and was during fitment. The caliper isnt bolted tight and the rotor wasnt pressed up against the hub, I was busy trying to center everything to figure out shims. With everything tight, the pad is fully seated.
In the future I plan on replacing the rotor with a 2 piece using a larger diameter hat. You can see the ring where the pad isnt hitting the bottom portion of the rotor.
RXGhost: (2011-05-26 16:15:37)
sweet that had me worried for a little because that is my next mod
james: (2011-07-05 07:29:41)
There is loads of options for a front brake Upgrade, so now am investigating fitting 88 Turbo Rear Calipers on an 84-86 Early style control arms.
I can confirm that the 88 caliper bolts up successfully to an 85T rear control arm.
When dummy fitting the SOLID rotor With the Vented Caliper the offset or height of the rotor seems to be too large
listed as 47mm for an 85 turbo rear rotor - & 57mm for an 88 turbo rear rotor.
This means using an 88turbo rear rotor is out of the question, and finding a large diameter vented rotor with a low offset seemed highly unlikely until i found this Jaguar or a 2000 S Type ( X200 series )
The Jag Rotor is listed as 288 OD with a height of 33mm and a Center bore of 64.5, while 5 stud i believe it is 108 or 110 PCD
I believe that if the Center-bore was opened up to 68mm and this rotor was re drilled as 5x114 that this would be suitable for use on 84-85 Rear control arms using 88 Turbo Vented Rear calipers.
This would potentially require spacers to bring the caliper away from its mounting bracket by a few mm.
[attachment=0:vh1wy0dv]jag rotor.png[/attachment:vh1wy0dv]
I put this forward as an option to those who do not have aces to late style 88 rear control arms.
I am In New Zealand and the cost of shipping would be prohibitive, I estimate Machining time to be approx 1hr or $60 on top of the cost of Jaguar Rotors
Now my Question's
Has anybody done anything simialr to save my time and dollars from inventing a new method ?
Can Anybody else Find a better Option for a rotor ? Keeping in mind the total height needs to be lower than 47mm to stop the rotor hitting the caliper.
if not would Users of Z3P make use of a full writeup to fit a vented setup on a 84-85 car ? If nobody is interested in doing this conversion it is a waste of time to do a detailed write up.
an example of my other writeup can be found here viewtopic.php?f=24&t=26792
EDIT >
Been out to do some measuring
OD of Rear Hub is 154.8 - 155mm
[archived image: DSCF3353800x600.jpg] you zoom in you can read the measurement , so that definitely fit inside the Jag Quoted measurement of 159mm
Measuring Between the Pad Carrier i get 24mm
[archived image: DSCF3356800x600.jpg]
Using a straight edge the face of the Hub to the Edge of the pad Carrier is 43mm
[archived image: DSCF3358800x600.jpg]
43m ( hub to pad carrier ) minus 12.1 leaves me 31mm from the face of the hub to the center line of where the rotor needs to be.
By looking at the Jag Drawing the inside of the rotor hat Minus half the thickness of the rotor leaves 15.5 ( face of hub to center line of rotor)
So by those measurements this should completely work providing I use a 14.5mm Spacer
NissanEgg: (2011-07-05 14:38:03)
What would be nice is for someone to make the rear Z32 calipers work on the Z31 rear control arm. I know the problem is the parking brake function, which can be remedied with a Wilwood line lock setup.
james: (2011-07-05 19:42:06)
I think companies like Will wood make dedicated parking brake calipers
somewhat simialr to these pictures
http://www.panteraperformance.com/Photo … stems.html
RXGhost: (2011-07-05 19:52:09)
I know that company they make some pretty cool kit cars for that pantera
james: (2011-07-06 00:21:47)
Probably tons more expensive than a line lock & leaving your car in gear
Anyway, i have Ordered some Jag rotors so hopefully by next week i can put up some pictures of fitment and spacers ect.
james: (2011-07-08 09:00:48)
Ok so Here is a Mock up consisting of the follow
88 Turbo Rear Calipers
Jaguar S Type X200 Model series Rear Rotors 288mm x 20mm
Longer Bolts
Spacer for the caliper
[archived image: DSCF3359800x600.jpg]
[archived image: DSCF3360800x600.jpg]
So Vented rear brakes on an 85 Turbo is now possible, Vented Rear brakes on an 85NA will require a completely different setup. I am in discussions with Russ84NA about how we can utilize 88 calipers on an 84- 85NA
Full Write For installation on an 85 Turbo will be made in the next 2-4 Days
LSXZ31: (2011-07-12 14:53:25)
Hey guys I am kind of new to the z31 scene. What is the cheapest upgrade for an '87 na? Should I machine down the hubs and get turbo rotors and longer studs? Do I have to run the turbo calipers?
RXGhost: (2011-07-12 17:35:22)
This is cool stuff for the rear if I wasn't swapping to -13 rear i would be jumping right on this great info james
adamvann3: (2011-08-17 00:57:35)
After about 1k miles, this weekend the brake pedal became very firm. Before with the stock z31 BMC I would have to put my pedal to the floor in order to get them to lock up. Now it feels the same as running z32tt calipers + z31 BMC. Must have been some trapped air in the lines that worked itself back to the BMC.
I am very pleased to have pedal feel back in the car. The z31 bmc impresses me with its capabilities.
Rick88ss: (2011-08-25 18:08:42)
Nice. How much did this setup cost?
If I already have SS Z32 caliper lines can I use them?
Rick88ss: (2011-08-25 18:10:18)
This kit looks pretty good for $300 if you're using Z32 calipers.
Thoughts?
http://www.z1motorsports.com/240sx/prod … cts_id=141
edicer2: (2011-08-25 18:46:54)
whats the benefit of 2 piece rotors or is it just looks?
NissanEgg: (2011-08-25 18:49:19)
Saves alot of weight with 2-piece rotors.
edicer2: (2011-08-25 20:38:13)
o alright I wasnt sure. how does it save weight is the 2nd part a lighter material?
NissanEgg: (2011-08-25 20:56:34)
Center section is usually aluminum.
adamvann3: (2011-08-25 22:19:14)
[quote]Rick88ss wrote:
Wilwood Forged Superlites
Piston Diameter: 1.620 in x4
Rotor Thickness:1.250 in
Pads: 150-8854K
Lines: Wilwood s13
Rotors: 350z Track Rotors (12.76")
Custom caliper spacer
Only compatible with late turbo hubs (or modified other)
Needs z32 BMC or equivalent to gain firm pedal
Nice. How much did this setup cost?
If I already have SS Z32 caliper lines can I use them?
~$600
z32 lines will not work
Rick88ss wrote:
I ran this setup previous to my wilwood upgrade. Wilwoods feel much better, dissipate heat better, way lighter.... but a bit over kill for what most people need. The z32 30mm+350z track rotor felt great on the car. Good balance, pedal feel and performance.
adamvann3: (2011-08-25 22:20:34)
Also I was contacted by the manufacture of the wilwood adapter bracket. He is going to be doing one more group buy soon. Ill create a thread about the details soon.
Rick88ss: (2011-08-25 23:00:37)
Where did you buy the Wilwood parts and rotors from?
Do the Wilwood calipers leave an unused groove on the outside edge of the rotor?
862sik: (2011-08-25 23:57:42)
This sounds interesting. Any updates?
adamvann3: (2011-08-26 00:17:45)
Wilwood Calipers, Lines, Pads ~ Touge Factory
Rotors ~ 88rotors (you can buy 350z Track rotors anywhere)
adapter brackets+hardware ~ s13 group buy on another forum
Yes there is an unused portion. However I am sure you can get a two piece rotor with a larger hat size and a smaller ring. I was just using my rotors from the previous setup. Switching to a 2 piece rotor is on my "too do list". There are places out there where you can specify ring size, hat size, bolt pattern ect..... Then you only need to replace the rings in the future.
james: (2011-08-26 00:25:25)
[quote]862sik wrote:
Ok so Here is a Mock up consisting of the follow
88 Turbo Rear Calipers
Jaguar S Type X200 Model series Rear Rotors 288mm x 20mm
Longer Bolts
Spacer for the caliper
Full Write For installation on an 85 Turbo will be made in the next 2-4 Days
This sounds interesting. Any updates?
yeah so I'm like 6 weeks late on making my write up but I'm going to go and "fully install" on the car this weekend so if you wait a few more days then there will be a complete how to on the subject.
adamvann3: (2011-08-26 00:43:39)
Also for those that do brake calculation here is the info:
Zenki Fronts:
Front Piston Diameter - 60.6mm
Front Piston number - 1/caliper
Front Rotor Diameter - 10.79"
Kouki Vented rears:
Rear Piston Diameter - 42.8mm
Rear Piston Diameter - 1/caliper
Rear Rotor Diameter - 11.1"
I have the kouki fronts on a different computer. Ill have to find it.
adamvann3: (2011-08-26 00:47:10)
More info I had bookmarked on freshalloy.com
Stock 240sx non-ABS front brakes (CL22VB):
- Single piston sliding caliper
- 54.0mm piston diameter
- 252mm diameter rotor
- 45mm wide pad ('width' is the radial dimension of the pad, following the terminology in the FSM)
- effective rotor diameter: 252-45 = 207
- effective piston area: 54^2 x 2 (8
- brake torque = 1535801.696
1988 z31 Turbo and NA uses a 15/16 BMC with a split point of 427psi.
Examples:
91 - 94 S13 240SX (all)
7/8" BMC
Split Point â 569psi
Reducing Ratio - 0.4
If you have 1000 psi of line pressure, the fronts get 1000 psi, the rears get 569psi + (1000psi -569psi) * 0.4 = 741psi.
Z31 300Z Non-Turbo
Part# 46010-06F00 (07/83 - 09/85) TOKICO
Part# 46010-21P00 (09/86 - 00/00) TOKICO***
Part# 46010-56L20 (07/83 - 09/85) NABCO***
Part# 46010-04P00 (09/85 - 09/86) TOKICO
Part# 46010-04P20 (09/85 - 09/86) NABCO
15/16" BMC
Split Point â 569psi
Reducing Ratio - 0.4
If you have 1000 psi of line pressure, the fronts get 1000 psi, the rears get 569psi + (1000psi -569psi) * 0.4 = 741psi. same as stock
90 Z32 300ZX
15/16" w/o ABS Aust. BMC
17/16" w/ABS Aust./Euro BMC
Split Point â 498psi
Reducing Ratio - 0.4
If you have 1000 psi of line pressure, the fronts get 1000 psi, the rears get 498psi + (1000psi -498psi) * 0.4 = 698psi. 42psi less than stock
Z31 300Z Turbo
Part# 46010-22F00 (07/83 - 09/86) TOKICO
Part# 46010-22F20 (07/83 - 09/85) NABCO
Part# 46010-56L20 (07/83 - 09/85) NABCO***
Part# 46010-18F20 (09/85 - 09/86) NABCO
Part# 46010-21P00 (09/86 - 00/00) TOKICO***
15/16" BMC
Split Point â 498psi
Reducing Ratio - 0.4
If you have 1000 psi of line pressure, the fronts get 1000 psi, the rears get 498psi + (1000psi -498psi) * 0.4 = 699psi. 42psi less than stock
Z31 300Z Turbo and NA
Part# 46010-21P00 (09/86 - 00/00) TOKICO***
15/16" BMC
Split Point - 427psi
Reducing Ratio - 0.4
If you have 1000 psi of line pressure, the fronts get 1000 psi, the rears get 427psi + (1000psi -427psi) * 0.4 = 656psi. 85psi less than stock
94 - 95 - 96 Z32 300ZX
1" BMC
Split Point â 356psi
Reducing Ratio - 0.4
If you have 1000 psi of line pressure, the fronts get 1000 psi, the rears get 356psi + (1000psi -356psi) * 0.4 = 614psi. 127psi less than stock
adamvann3: (2011-08-30 00:37:10)
Wilwood Caliper Adapter Group Buy: viewtopic.php?f=12&t=29915
inqui-Z-tor: (2011-09-08 04:16:22)
I finally got the write up for the WINFactory BBK for the z31
The WINFactory Z31 Big Brake Kit is perfect for the daily and light track use drivers. Features a 2 piece aluminum hat and 12" slotted GT rotor, which shaves 3 pounds off the rotating and bounce mass of each wheel. The kit also relocates the rotor to the outside of the hub for ease of maintenance. With the additional rotor size you will use less brake pedal pressure to stop the car and with the improved cooling vane design you will also notice less brake fade during hard braking use.
…All while still utilizing the stock caliper. Other options are available, call/email for inquiries.
Kit includes:
2 - 12" Wilwood rotors
2 - Wilwood aluminum hats
2 - Winfactory relocation brackets (1 left, 1 right)
10 - 8mm longer wheel studs to relocate the rotor to the outside.
and Grade 10 mounting hardware!
$600 for the stock Z31 BBK upgrade.
Matt at 916.457.7062 or tech@drivenauthority.com
Best argument for this set up? It's complete .. you don't have to search around, looking for all the stuff/parts.
Can you (anyone) get a better deal? Yeah, if you want to take the time and effort to do so. Matt/Driven Authority will stand by his kit. You can assemble your own kit - develop your own bracket (one -off) .. but put a kit together for mass (so to speak) sale ..
This kit works for most people's needs (unless you plan on doing a lot of track/autoX time .. this kit will handle even the most agressive daily drivers)
Matt is looking at another upgrade to make along the lines of the Winfactory z32 upgrade kit .. which could reduce costs a bit more (economy of larger volume buys for the kit parts)
adamvann3: (2011-09-08 21:47:56)
Need better pictures
[archived image: DA_BBKz31_2s.jpg]
[archived image: DA_BBKz31_1s.jpg]
I wonder if the z32 caliper would seat well on the rotor?
inqui-Z-tor: (2011-09-08 23:21:50)
^^ Yeah .. I didn't take the photos.
Maybe over my 5-day weekend, I'll take some pics.
I think the z32 caliper will slip right on .. it's something I discussed with him .. going with z32 calipers or with willwoods.
K_Scheeringa: (2011-10-03 00:51:28)
Ok, so I'm going to throw this into the mix…
http://zilvia.net/f/tech-talk/122707…on-brakes.html
As i understand it we can use any upgrade brake set-up for the 240sx with a little shimming..
So does anybody know if this is possible using the same principle..
Basically he bolts the 350z (z33) Brembo track rotors AND calipers directly onto his S14 with gust drilling out his mounting holes.
We should be able to do the same with a little shimming.. Anyones thoughts???
COPIED FROM THE LINK ABOVE -----------------
Bremsen: (2011-10-03 19:56:31)
I'm confused. Here is the same p/n listed in 3 sections with 3 different split points.
adamvann3: (2011-10-08 17:46:40)
Thought this was covered before?
350z and g35 have the same spindle mounting orientation as the s-chassis and consequently the z31 (with shims as you mentioned). When looking at the Wilwood bracket it was discovered the the holes just needed to be drilled larger and could be used on a 350z/g35 (same principle but reversed).
Long story short.... yes it can be done. Its just the 350z track setup is highly sought after and $$$. The evo8 setup may be a better way to go if you cant find 350z track brembos
MADMIKE: (2011-10-31 20:54:15)
Thought I would add a little to this FAQ:
NISSAN Z-CAR ROTOR MATRIX "STOCK"
This little Excel sheet was compiled by me using Centric's OE replacement measurements. They may not be 100% correct but will work as a frame of reference. I believe for example the rear rotors on the z32 and up were all floating with Drum in Hat.
I will be making an upgrade matrix as I get the information. The Matrix will be divided by the Stock caliper being used. I hope to have this banged out by December. A final matrix will be used for aftermarket bolt on or adapted Calipers for which an adapter exists already. Anybody looking to help shoot me your info and a source.
Justin88na: (2011-12-16 16:52:52)
These are the Brembo brakes from the Nissan Sentra SER-Spec V, which I know you can also fit the Q45 brakes on which leads me to believe that the mounting points are the same as the Z as well.
Bates Z31: (2011-12-16 18:01:27)
[quote]Justin88na wrote:
.
I haven't heard of anyone doing Q45s on a B15 Spec-V. More common is the Z32 brake swap (I have it done on my 2002 Spec-V), which are direct bolt ons. Only the rotors need to be machines and you need conversion lines. The calipers bolt right on to Spec-Vs.
michaelp: (2011-12-16 18:12:50)
[quote]Bates Z31 wrote: [quote=Justin88na]
.
If Z32 calipers bolt right onto a SE-R Spec-V then Spec-V claipers will bolt onto a Z31.
I haven't heard of anyone doing Q45s on a B15 Spec-V. More common is the Z32 brake swap (I have it done on my 2002 Spec-V), which are direct bolt ons. Only the rotors need to be machines and you need conversion lines. The calipers bolt right on to Spec-Vs.
Justin88na: (2011-12-16 20:04:15)
Yeah, there are a couple companies out there that sell a kit, Q45 calipers, redrilled rotors and lines. I dont have the links on my work comp.
Bates Z31: (2011-12-16 20:29:51)
[quote]Justin88na wrote:
I haven't heard of anyone doing Q45s on a B15 Spec-V. More common is the Z32 brake swap (I have it done on my 2002 Spec-V), which are direct bolt ons. Only the rotors need to be machines and you need conversion lines. The calipers bolt right on to Spec-Vs.
Yeah, there are a couple companies out there that sell a kit, Q45 calipers, redrilled rotors and lines. I dont have the links on my work comp.
I don't doubt it. I am sure they fit, mostly because I know Z32 and Q45 calipers are direct bolt ons to S13s, and since Z32's also fit on B15s, it only makes sense that Q45s bolt on B15s too.
cjlewisz31: (2012-01-10 04:37:26)
hey all,
Im working on retro fitting the rear z32/r32 calipers with the drum brake setup. so far: Using the arms of an 88t i found that there is room to fit the unit behind the hub. BUT..... there are things that need to be tacken care of. first thing is the top part of the drum where the retaining spring needs to be shorten and knotched to clear the stud head. also the stud heads need to be cut off on 1 side to clear the shoe retaining springs. sofar thats were ive stopped due to lack of light and dinner. only things left are welding somthing for the retaining stud at the back to bolt on to, drill, tap, and bolt on the drum backing ( looking like only one side will be able to do that with) and a 2-3mm wheel spacer inbetween the rotor and hub to make the space to clear and center the caliper. oh, and fab somthing to tie in the e-brake cables. it is a pain but it can be done… for the most part. :nanan?re
reddzx: (2012-01-13 20:41:26)
I've been going through all the brake threads trying to find something I thought I saw awhile back.
I have a set of 1990 Z32 NA aluminum calipers and it seems like I read that they could be use with the stock 87-89 turbo front rotors. I ask this because I have a set and I have new stock rotors that would be a shame to waste.
I also found info at zenonz31 that says I need Z32 rotors and shims to center the caliper. Are there any brake lines that will match the calipers to the Z31 hard lines?
Neil86t: (2012-01-13 20:56:50)
It's been a while since I studied this stuff. Someone can verify this hopefully. You can you use calipers on 87-89 turbo rotors. I think you need either z32 lines or 240sx lines.
NissanEgg: (2012-01-13 21:04:46)
As long as the NA calipers are the 26mm variety, then you can get away with using them on 87-89T rotors. If I remember correctly the 87-89T rotors are 22-24mm thick.
If you want to use Z31 style brake lines on the Z32 calipers, do this:
Split caliper halves open
Remove piston in front of brake line hole
Take a phillips screwdriver or center punch and knock out the inverted flare fitting hitting from the piston side of caliper
Rebuild calipers and install Z31-style hoses with new copper crush washers.
MuhKaydenZ: (2012-01-13 21:27:16)
I got ss lines that go from the 240 to z32 so I wouldn't have to mess with taking them apart and what not I ended up sending them to nissan egg and having him rebuild them anyway but i'm glad I got the lines that are just plug and play Good luck!
cjlewisz31: (2012-01-15 16:49:26)
ive nevervused ss lines but i get mine from racetechperformance.com from my boy malik. also im not sure if the ss line come with all 6line for our z31s but if they dont, malik knows about the lines in the rear control arms so if you order from him he'll make sure you get what you need and give you a choice of colored sleives that go over the lines for accents.
clintbizzle: (2012-01-27 23:36:00)
hi, i got a 86NA and i plan on tracking the car at some point. It sat for a bit and the right rear caliper is rusted up and is completely locked up, i have a wrecked 91 z32 sitting back in Kansas city (i live in Mississippi and its sitting at my dads house) and i want to do the front and rear z32 brake swap.....but my other problem is the shocks are shot (the original ones from back in the day) and i want coilovers, i was going to do the s13 spindle and coilover swap for the front shown here:
http://ghettogarage.org/how-to/z31-s13- … onversion/
and for the rear shown here:
http://redz31.net/pages/coilovers.html
( i would do the front like this but i cant have a welder where i live)
so anyways pretty much my main thing is will it work/is there a better option that works with a budget....
oh btw i don't care about the Ebrake issue because the dang thing doesn't work anyways.
id appreciate any help i can get before i just start and get real disappointed when it doesn't work
reddzx: (2012-01-28 00:24:55)
Z32 rear e-brakes will not work on Z31 rear suspension.
clintbizzle: (2012-01-28 02:02:36)
i know, that's why i said i'm not worried about it because mine doesn't work anyways and iv done fine without it thus far :sweat
Z-31Turbo: (2012-03-20 00:27:55)
Working on STI adapters tonight.
Wondering whats the distance from the Z31 mounting point to hub? min 40mm radius min is needed to clear it, but I cant mesure that distance without the strut assembly (waiting at the shop for a powdercoat.
This information can always be useful for reference. :nanan?re
adamvann3: (2012-03-20 00:50:25)
Back when ppl where making these for their s-chassis their were a ton of measurements listed on Zilvia. I have them bookmarked on my other computer and can probably find them tomorrow if neccessary. I would assume you could use s-chassis mounting width+z31 shim distance to get the thickness.
Z-31Turbo: (2012-03-20 02:36:07)
There is a lot of space behind. No need to worry about clearance there.
Steel adapter can be welded in place, using Z31 hole as guidance.
edicer2: (2012-03-20 02:51:21)
does anyone know if the z31 reservoir fit on a z32 brake master? I want to be able to use my ztek cap i bought but i need to use a 80mm flat cap and the 2 (80mm and 60mm) different sized cap the z32 master comes with.
Careless: (2012-03-20 06:00:20)
It's in the DIY section of the website. I posted my Z32 brake swap. I used 87-89T Rotors after buying like 4 different rotors from my parts guy. The one that fit exactly was the one that was from the Z31, and I didn't realize. Made me look real stupid when I went back to ask for another rotor for an 87 Turbo… because after all that measuring and interchanging… I ended up getting stock rotors for my car (which he knows I own) - but my parts guy is awesome, so he just poked fun.
My calipers came with a small holder thing that is welded to the back, and then has a spacer wedged into them. What I also noticed is that the spacer is almost exactly the same shape/size as the exhaust manifold washers. I think the hole is a touch bigger though.
K_Scheeringa: (2012-03-25 23:21:49)
Is it possable to get these solid model files??
I run SolidWorks 2010 and this would be awsome..
I'm sure i can figure out how to convert it to SW..
Thanks
adamvann3: (2012-04-08 00:33:35)
Wish I would have reviewed the thread this morning before starting the project. Was a head scratcher trying install the late turbo hubs on 86na spindles/dust shields when everything kept binding. It wasnt until i flipped the stock 86na hubs over and noticed they have a different style grease seal.
So far I opted to order a new set of early hub style rear grease seals (National P/N: 444116) to see if it will work in the late turbo model hubs (can anyone confirm?). If not, I will remove the dust shields to trim out the center section to make the late turbo hubs original style work.
hds84t: (2012-04-13 02:41:16)
Alright, before I go and mess this up. I just got my stance coilovers delivered today and before I cut and weld my spindles I need to know the following. Will I be able to do the TT front brake upgrade w/ my 88 SS hub? or do I need a Turbo 87-89 hub?
G-E: (2012-04-13 05:53:47)
do you have a slip on 5 bolt rotor?
adamvann3: (2012-04-14 02:01:55)
[quote]adamvann3 wrote:
Just a quick post to point some things out I found in my Z32 Swap (30mm Aluminum Calipers, OEM Z32 Rotors, Z32 SS Lines).
1. Early z31 dust shield won't work with the later model hubs
Maybe something was said about this and I probably missed it but the inner dia of the brake dust shields are to small for the later model hubs to work. You can bore this out or remove them, otherwise your bearings won't seat properly and you wouldnt want to drive it like this.
.....
Wish I would have reviewed the thread this morning before starting the project. Was a head scratcher trying install the late turbo hubs on 86na spindles/dust shields when everything kept binding. It wasnt until i flipped the stock 86na hubs over and noticed they have a different style grease seal.
So far I opted to order a new set of early hub style rear grease seals (National P/N: 444116) to see if it will work in the late turbo model hubs (can anyone confirm?). If not, I will remove the dust shields to trim out the center section to make the late turbo hubs original style work.
Just an FYI. The early style hub grease seal (National P/N 444116) do fit/work/press into the late model slip on turbo hubs. Well worth the $6 not to have to sit and trim the dust shields on the car an early model car.
G-E: (2012-04-18 10:59:20)
…my skyline r32 GTR brakes FINALLY!
needs a 4mm spacer for the caliper, and the flare fitting for the brake line, otherwise direct bolt on…
for those who haven't read my brakes page, that means 294x32mm rotors, just a hair shy of 12"… down the line I will also be able to make a bracket and use z33 track rotors for even more baller status
adamvann3: (2012-04-30 02:58:51)
Decided to go with alkaline cleaner to clean out the passages, as well as avoid messing with the piston seat's surface. Other than a quick solvent clean job to remove grease, this bitches were tossed in rust, chipping paint, ect… right into the cleaner and came out looking good. Chemical cleaning is the way to go.
Powder coated, along with bolt heads
Polished the pistons to ensure a good seal and seamless movement. Rebuilt with z1 kit.
Old 86na BZF installed goodness
New 350z Track + z32tt
Notes:
~Use early grease seals in late turbo hubs with zenki dust shields. Zero clearance issues.
~No need to trim the dust shield with the caliper adapter
FLAZH007: (2012-06-03 04:07:45)
Alright, Ive read all 8 pages of this thread and itâs very interesting but one problem. I havenât seen one person on here use z32 30mm calipers on '87 OEM wheels. Because Iâm using '87 hubs and all, 17 size washers for alignment, Brembo z32 rotors still the OEM size, and itâs still not clearing the wheel. It needs some kind of spacer to push the wheel out very little so it wonât rub :-?
MuhKaydenZ: (2012-06-03 04:46:10)
I used the 30 mm z32 brakes and rotors and I had to use 86t wheels to clear I tried 85t wheels and they did not clear I later had to get longer studs and a small spacer to get my other wheels to work
Longer Studs I purchased them from ebay link below
http://www.ebay.com/itm/330629773859?ss … 1497.l2649
After with a small spacer
Replaced my BMC with one from a Z32 link below made it plug and play [archived image: smile.png]
http://www.ebay.com/itm/250810617597?ss … 1497.l2649
FLAZH007: (2012-06-03 05:33:52)
After with a small spacer
What size did you use?
MuhKaydenZ: (2012-06-03 07:44:06)
I had some 10MM spacers so I threw them on and they worked great
FLAZH007: (2012-06-04 06:21:45)
Ok so heres mines....
Have everything 87 hubs and all
5/16th spacer.
Made my own o rings from some similar size rubber o rings I got from Ace Hardware.But I did get the compleat rebulid kit.
30mm from 91 z32TT
Still need longer studs…
This is what happens when you dont use some kind of spacer on 87T OEM wheels
NissanEgg: (2012-06-04 13:43:16)
87T+ wheels have 10mm less offset that's why they rub the calipers. 84AE/86T wheels have +20mm offset. 87T+ have +30mm offset.
FLAZH007: (2012-06-04 13:59:44)
Yep found that out the hard way.But its ok,I didnt scrap my calipers too bad and you cant even see them.Once I get some Mustang Cobra wheels Ill just repaint them a little.
coryz31: (2012-07-02 21:03:44)
I used r33 gts calipers on stock rotors with 87t wheels, and had no rubbing problems.
cjlewisz31: (2012-07-03 00:02:34)
what size rotor do the gts use? im only asking because i have a set front and rear of a gtr non-V spec and i know they wont clear for sure.
G-E: (2012-07-03 00:09:20)
[quote]cjlewisz31 wrote:
I used r33 gts calipers on stock rotors with 87t wheels, and had no rubbing problems.what size rotor do the gts use? im only asking because i have a set front and rear of a gtr non-V spec and i know they wont clear for sure.
http://carfish.net16.net/brakes.html
cjlewisz31: (2012-07-03 01:22:18)
[quote]G-E wrote: [quote=cjlewisz31]
I used r33 gts calipers on stock rotors with 87t wheels, and had no rubbing problems.what size rotor do the gts use? im only asking because i have a set front and rear of a gtr non-V spec and i know they wont clear for sure.http://carfish.net16.net/brakes.html
thanx for the link bud. my rotors are 296x32 so im guessing if your fit then so should mine.
G-E: (2012-07-03 04:27:35)
I did need 8mm (minimum) spacer for the 17" rims I have, so I expect something similar for stock 87t rims, the caliper however needs less offsetting from the mount, mine needed 4-4.5mm to center on the rotor
If you used narrower rotors (z32) and spaced the inner pad out more (lotsa shims, custom plate etc), you could get more rim clearance by keeping the caliper closer to the mount
cjlewisz31: (2012-07-03 05:05:08)
thanx for that. i will be using s13 knuckles so it should, key word "should", clear my wheels. i have an old set of 5 lug Rikens with the same wheel offset as the 88t. worst case ill need a small spacer as you mentioned.
G-E: (2012-07-03 05:20:51)
The hub you use doesn't change the caliper clearance, the brake rotor dictates where everything sits, on the S-chassis you just don't have to space the caliper out as I recall
My old chassis is going to get a big brake kit of some kind, and I think I'll be using lathed non-turbo hubs for extra offset, which will allow room for a nice bracket for any kind of caliper/rotor
cjlewisz31: (2012-07-03 20:57:35)
ya the S-chassie knuckles shouldn't need any mods except to open up the braket mount holes for my calipers. i was mainly worried about clearing my old school Riken wheels.
cjlewisz31: (2012-07-03 22:53:23)
ok so now im a little lost on the size of my calipers. i know i use the 296mm rotor but what i need to know is if either i use the 30mm or 32mm thick rotor. so if anyone on here have either of the 2 calipers would you be able to messure the gap of the caliper from the top where you instal the pads? i belive mine are 33mm wide but im not sure if they are suposed to be 1 or 2mm bigger. im asuming i need the 32mm rotors but ive been wrong before.
G-E: (2012-07-04 01:13:21)
if you have R32 GTR NON-v-spec then you have 32mm rotors, which are actually a bit bigger, the 32mm is more like minimum thickness
cjlewisz31: (2012-07-04 01:26:56)
hmm.... they might be smaller. however the bolts are a lot bigger than the original bracket holes so would that tell you anything? ive done a z32 swap on an S-chassie but none had these bolts.
hds84t: (2012-07-12 05:21:30)
What rotors did you use?
FLAZH007: (2012-07-16 03:53:57)
[quote]hds84t wrote:
Ok so heres mines....
Have everything 87 hubs and all
5/16th spacer.
Made my own o rings from some similar size rubber o rings I got from Ace Hardware.But I did get the compleat rebulid kit.
30mm from 91 z32TT
Still need longer studs…
This is what happens when you dont use some kind of spacer on 87T OEM wheels
What rotors did you use?
Z32 Brembo rotors.OEM size(280mm)diameter.Dont know about the thickness though.
Greasedmonkey: (2012-07-17 00:47:15)
Whats with the add saying rear studs only, is there really a difference between front and rear?
FLAZH007: (2012-07-17 04:24:56)
Iâm using them for the front with the spacer and there working fine for me....
jaqattack02: (2012-08-01 20:16:52)
Have you guys seen this yet? A guy made mention of it on a For Sale thread and I did some googling. I wonder what size wheel we would need to fit over it. It bolts onto a Z32, so it should bolt onto 87-89 turbos as well. The guy is selling adapter brackets to bolt on SRT8 Charger/Challenger/300C/Cherokee Brembos and 14.25" rotors.
http://forums.nicoclub.com/akebono-1…s-t545946.html
zzzlow: (2012-08-02 04:29:57)
Yeah, I bought the brackets from that guy. Brackets, calipers, rotors, and wagner ceramic pads, $550.00. But, the rotors are actually 13.97". Still badass.
[archived image: brackets.jpg]
[archived image: brotors.jpg]
[archived image: brcalipers.jpg]
inqui-Z-tor: (2012-09-26 12:32:42)
Finally .. Driven Authority's WINFactory BBK for Z31s is on their website.
http://www.drivenauthority.com/shop/WF_Z31_122BBK.html
This is what's on my Z. Is it like other's - NO. Can it be upgraded - YES. Infact, Driven Authority can (and is putting together) options (caliper changes, etc..) for those interested.
So before you all go crazy in comparing kits .. consider that this is an alternative. And it's mass - produce-able. Meaning, it's not a 1-off.
And Driven Authority stands behind it's products.
G-E: (2012-09-26 13:14:46)
Doesn't say which caliper gets relocated, but I'm probably safe in assuming they are using z32 calipers? 26mm rotors (z31 87t+) aren't a standard size for the nascar world (12.2" is ~310mm) even for rears
Nice to know other vendors are trying though [archived image: smile.png]
inqui-Z-tor: (2012-09-26 13:30:27)
Front .. OEM z31 caliper .. although z32 calipers will work.
I will caveat .. this BBK is on my Z (84) .. during development, there wasn't (still don't) a 87+ z31 to "test".
And to be totally honest, I'm not knowledgeable enough to know the differences in braking components from Zenki vs. Kouki vs. Chuki …
And yes .. I asked for something that wasn't quite as robust as the AZ system (I didn't want to spend that kind of $$). And the thoughts were .. Why duplicate what the AZ system has. It's already there, and proven. Can't be marketed for less (only copied). The Driven Authority - WINFactory provides a "product" (meaning - it's available for purchase complete. You don't have to assemble or make your own parts). In the works is enhancements .. ie .. upgrading the calipers to z32 or Willwoods, etc .. or to allowing the Driven Authority WINFactory Z32 BBK "fit".
Thereby providing a "range" of BBKs depending on budget and applications.
G-E: (2012-09-26 13:52:39)
In that case these would be 22mm discs, and those ARE common
I thought of doing a kit exactly like that before I disappeared, but then I realized it would only be good for regular driving nothing hardcore
Using 1-piece rotors from the rear of something else nissan makes 5-bolt was my intention, but I just couldn't reliably source them (overseas models)… ironically now with the domestic 370z/g37s, akebono brakes, the rears are ~22mm and over 13", it would be easier
inqui-Z-tor: (2012-09-26 14:54:03)
These are 310mm rotors .. and yes there are larger out there .. requiring different brackets to adjust caliper mounting. I won't say infinite combinations .. but enough to make it not cost effective for any vendor to develop nor stock.
As I posted earlier in this thread.
1. This is an alternative BBK. It's not for everyone, no matter how good a driver they think they are.
2. Anyone can probably duplicate this kit, by themselves, as a one-off (getting deals with friends, etc…) but try to mass produce it (group buys, collecting inventory, etc..) and then sell it.
For those that developed their own kit .. I applaud you! I'm envious of your talents. I'm not so inclined to trust my mechanical abilities when it comes to brakes .. but that's just me.
cjlewisz31: (2012-09-26 20:19:14)
I have a set of R34 GT-Turbo calipers that requier the use of a 310mm x 30mm rotor from the factory. Would this addaptor kit be a better setup? Im only asking because my rotors cost ~$250 just for a stock front set.
G-E: (2012-09-26 20:47:08)
That kit Inq posted only appears to contain rotors and brackets for $550, you can bet the rotors are the biggest cost, and you have thicker rotors… I'd say no
inqui-Z-tor: (2012-09-26 20:51:16)
The Kits includes:
Qty 2 - 12.19" Ultra light HP Wilwood Rotors
Qty 2 - Wilwood Aluminum Rotor Hats
Qty 2 - Caliper Relocation brackets
Qty 10 - Z32 300zx rear lug studs (replacement studs for front lugs studs)
G-E: (2012-09-26 21:13:41)
Anyone who's able to fabricate brackets to use larger calipers with the brake rotors I'm producing is welcome, R32 GT-R calipers will work if you like the NISSAN printed on them
For the less picky, porsche/corvette/ferrari/jaguar etc… all have calipers that would work, just make sure you get one fairly cheap to rebuild with good pad selection [archived image: smile.png]
http://z31performance.com/showthread…on-turbo-hubs-)
cjlewisz31: (2012-09-27 01:48:45)
Ok sounds like a plan. Guess im sticking with the r34 fotors. Aw well no biggiey.
inqui-Z-tor: (2012-10-04 11:50:52)
Question .. ?
Can someone post a photo or photos .. Of the 26mm and the 30mm z32 calipers together or side by side?
Edit: Ok, I did a google. Correct me if I'm wrong (please).
The difference (aside I guess in materials. The 30mm was available in both aluminum and iron) is due to the "rotor thickness" the calipers could accommodate. A 30mm BBK "may" accommodate. 26mm rotor (with a spacer?) but a 26mm set up would not work with a 30mm rotor?
MADMIKE: (2012-10-04 14:50:50)
Correct to a point quiz. The 26mm Aluminum can be opened up with a dremel to clear a 30mm rotor.
inqui-Z-tor: (2012-10-04 14:59:09)
OK .. thanks. I didn't think of that.
So which (if appropriate) is better?
1- Modify (opened up) a 26mm aluminum (only available in aluminum, right) to accomodate a 30mm rotor.
2- Add spacer (?) for a 26mm rotor to the 30mm aluminum or iron caliper? I'm presuming that the mounting points of the 30mm caliper are the same for aluminum and iron versions.
MADMIKE: (2012-10-04 16:13:13)
Mounting should be the same on all 3.
Never use 26mm rotors with 30mm calipers, they pistons can push out of the caliper body.
Racinjitter: (2012-10-05 22:44:41)
If you don't have 30mm calipers and don't want to buy another set, you can clearance the caliper to accommodate 30mm rotors. This is what I did and Taris Blue did. I also clearanced m calipers for 12.75" rotors.
Careless: (2012-10-05 23:32:23)
i was also going to do the same, but I was going to do it by separating the caliper halves to get the grinder in there with more precision/less in the way.
one of the bolts was slightly twisting rather than coming loose, so i decided to just use 87T rotors instead this time around. I'll probably upgrade at a later date.
that's why I didn't mind the 26mm calipers, they're essentially just 30's with more material where the rotor is.
G-E: (2012-10-06 02:16:52)
I might be selling a surplus set of 32mm GT-R calipers soon… I have a full set coming I need the rears for my racecar
Pauls: (2013-06-23 07:51:10)
As some have noticed have been toying with many options including G-E's components (BTW good to see G-E trying to innovate and offer new solutions for our old z's)
I was going s14 hubs in order to get g37 rotors and calipers.
With all the alignment issues mentioned have ditched s14 front setup and gone back to z31 s3 front hubs/knuckles.
While late z31 seems to be more compatible with newer gear.
The big question was how compatible…
Well it seems very compatible.
2008 gear on a 1989 with such ease, that's crazy!
I had g37s rotors & calipers along with an adapter plate to fit the gear onto s14 suspension.
Unbolted and bolted onto z31 s3 gear almost effortlessly with the s14 adapter. Used 3 washers between caliper and adapter bracket to push caliper forward and centre on rotor, but that's it.
Going to measure the same on s14 gear against z31 setup I now have but it looks insanely close.
Anyway thought I would post this update & images for others to reference..
The image with coilover is left hand front s14 gear test fitted in z31, other is z31 right hand side front gear test assembly. Waiting on stance tubes so can weld on coilovers.
This is an Australian build so getting parts from USA has been a pain but well worth it. Here is my build if anyone's interested..