Jump to content
SAU Community

Recommended Posts

Hey guys

just wondering if anyone has some sort of cad file for some brake adapter brackets

looking to upgrade the brakes on my car and was thinking of rendering it up on catia (what my uni uses) or inventor (students get a free download)

i'm thinking that i'll make a bracket to run GTR brambo rotors with r33 callipers (bought what i thought were r34 callipers for my stagea but they are 12mm bolts not 14 like mine so now i have callipers i cant use etc)

I should also have access to a laser cutter too

But before i start i thought i would ask if anyone has some already on file (can change mounting bolt hole sizes easily if the are 12mm currently)

Also trying to work out weather to make it an L shape bracket (not with a 90° bend but like 30°) or a dog bone shape (holes almost ontop of each other, just offset a little)

Thanks in advance if you can help,

Tom

Link to comment
https://www.sau.com.au/forums/topic/317426-brake-upgrade-brackets/
Share on other sites

  • Replies 41
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

Posted Images

If im readig this correctly.. you want to put R33 GTR brembo brakes on your Stagea?

You can use the 12mm bolt and put a sleeve in the bolt hole to run the calipers... not need for brackets etc.

More here:

http://www.gtr.co.uk/forum/117575-replacin...s-what-get.html

I personally dont like brackets, get a sleeve turned up as per J's post.

I have the same issue, R32 gtr callipers to go onto my 14mm M35 mounts. I have a lathe to turn them up though. :)

find some stainless pipe with 12mm id and 1mm wall thickness then cut to length

sorry guys, i have r33 gts25t callipers and can get brembo rotors for $250

so instead of messing around with adapting to run 296mm rotors i wanna run 324mm rotors then have a bracket with 14mm bolt holes for the stagea and 12mm bolt holes for the 33 calliper

  • 1 month later...
the gtst calipers wont swallow anything larger than 300mm rotors anyhow...only around 3/4 of the disk gets used with the 324mm ones

I made my own adapter to run the 324mm rotors on my 32gtst about 8 years ago before I had even heard of anybody else doing it. I was a piece of piss. I think I used around 6 or 8 mm plate and a couple weld on spacers. Took a little while (few hours) to get the wooden template right and about an hour to make. Obviously had been done by someone somewhere before me as it an easy upgrade.

The gtst calipers are almost the same length pad as a brembo and the only real difference is the brembo pad is about a 1/4 inch higher.

Go the bigger dia. Its a 10% bigger dia. Don't think Zebra gets it as what you want it is the extra braking force from the larger dia disk plus they run cooler since they don't have to do as much work. UAS sell the adapters.

found someone willing to post some 34 brakes so will be going for those and sell my 33 callipers (or put them on my 31, but i dont think it will clear the wheels)

would be nice to make this up but its gonna work out cheaper to do the 34 brakes if i can sell my 33 callipers off

  • 4 weeks later...

quick question for you guys,

do you do any calcs to determine the thickness and rigidity of the brakets? if you did, what method do you use to determine the brake forces and such?

or is it based off experience?

generally you can do it off experience, just make sure its strong enough that the original bolt is going to be the first thing to break, and its stiff enough not to vibrate or do anything dodgy. There really isn't as much force going through brakes as most people probably think.

As said above 324mm rotors really dont work with r33 calipers, as the curve of the caliper is wrong. Even after modifying the caliper(which is pretty dodgy), the pad still hangs off the edge of the rotor

I don't have any pad overhang or if I do it 1mm and I haven't modified the calliper. You must have had some dodgy brackets!

All you geeks have no idea. Why is it dodgy. It works fine and is the cheapest upgrade you can do. Make some free brackets or waste over 1k on brembo's just to hava a brembo badge. Stop touching yourself. I wouldn't even care if I did/do have overhang. It would make changing the pads and disks easier because they don't get caught on the lip of the disk.

Are the std brakes dodgy becuase they don't optimise the whole disk because there is a 1-2mm area on the od that doesn't get used.

Dodgy my arse!!!

Sydneykid used to use this bracket on his track cars and I have also cut a lot of laps with homemade and bought brackets and never had a problem.

easy tiger....adriano is one of the few on here who does know what he's talking about!

but like you say, different brackets might have better or worse results. certainly plenty of people have run the UAS adapters with good results. And no doubt the gtr brembos are very poor value for a small upgrade in size over standard calipers

Maybe r32 and r33, gtr and gtst and z32 calipers are different in this regard. To fit them to a set of 330mm discs, we had to grind the inside edge of the caliper almost all the way to the bolt that holds the caliper together, which i consider far from optimal. This allowed the edge of the pad to be almost flush with the edge of the disc with the inside of the caliper being about 1.5mm from the disc. However maybe the calipers were different, or the pads, or even the discs possibly. We did question this at the time as i knew UAS sold brackets, and we couldnt see how this was done commercially. PS Im not sure which calipers we had(They all look the same, but i was told they were 33gtst)

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • My dream is also to have a proper hoist, but I don't think it will ever happen. My quickjack is probably as close as I'll ever get, it really is very good though. 
    • Yeah we keep on in the dailies, it is pretty poor how many animals get hit and the driver leaves without checking....have saved a couple of little ones over the years. Bit of a gruesome job though, pouches generally need to be cut open because they are so tight and often the joey doesn't realise mum is gone so they are still locked onto the teat. I checked the modules in front of the DS wheel where an oil cooler should go.... There is the radar unit - that can go for race use) One of the 2 HX water pumps, the silver cylinder. That needs to be kept but might be able to be relocated But the bad news, the big computer mounted vertically in front of the wheel (blocking any potential air exit) is the electric steering computer. That is required until/unless i do a hydraulic steering conversion, and in CAD based modern car design it is not like I can just pop a big unit like that somewhere else (plus the loom would be too short anywhere else too). So, the passenger side is OK to clear out (just use a smaller washer reservoir, potentially elsewhere), but the DS no beuno
    • Well, all the best with the new camry It was interesting to hear about the UK process, it is generally a lot more streamlined here with a shipping agent looking after all the import side (noting the exact final price can still be a surprise.....) and I've used a few different brokers on the japan (or US) side, and never had any trouble with any of them....luck of the draw I guess. You mentioned you didn't get the auction sheet (understandable since you bought it from a dealer, not auction), but I always try and get hold of that because they are pretty thorough. I've imported 2x R grade vehicles over the years and both were fine, repairs in Japan are pretty thorough compared to here in Oz.
    • BTW I measured the jack I have, it is 70mm at the saddle but you only have about 700 until it returns to 150mm high at the cylinder so it is good but no magic bullet.
    • My experience with Rising Sun Exports Before agreeing to the sale I tried to do as much research as I could (obviously), his Facebook reviews are 98% and he goes Live at least once or twice a week. I contacted 2 people in the UK who had used him for their imports, both had positive feedback. His explanation and talk through of the import process was thorough, answering any query no matter how stupid it was. It felt as soon as the money was sent, communication dropped off. I asked for shipping updates every 2 weeks or so, not wanting to pester him, he never had any updates. I wasn't informed the car had been dropped off at the port, I only found out by his Facebook story. I asked for the photos taken at the port, knowing he would need some for insurance purposes. I received a few 5 second clips and that's it. When asked again, he said his staff had them. Weeks later I asked again, he tells me he doesn't have any, but does have 50 photos from the original advert. I never received them. I eventually got the documents sent via WhatsApp after I mentioned the port was requesting them. I purchased a CarVX report, to find out the vehicle is a Grade R with recorded accident damage, first recorded in 2017 when it was first auctioned. He never told me the grade, then again I didn't ask. His response was "Grade R means nothing, it wasn't chassis damage". Still, I would have liked to have been informed about it. Jon prides himself on being open and honest when it comes to inspecting cars, it's his main job doing so at the auctions for customers. When the vehicle arrived in the UK I noticed a few little cosmetic issues. It's a 21 year old car so it wasn't going to be mint condition. The side skirts are cracked on each corner and the sealant is failing. The front grill on the bonnet/hood isn't secured very well, mounting studs are missing. Both minor things, but again, it would have been nice to be told. During a Facebook Live walk around video of the vehicle, he mentioned it has a front Whiteline anti roll bar/sway bar. While on the inspection ramp, I noticed the stock item has been installed. When first questioned, his response was "the ARB? Switched? Since when, it never had them". Since sending video and photo evidence I've not received a response. I'm probably being over critical of the overall condition of an old car, but all I wanted was honesty (which he claims to have). I'm aware I wasn't his only customer, he's busy doing XYZ but other reviews praise him for great communication with regular updates and photos, I felt I didn't receive the same treatment. 
×
×
  • Create New...