Jump to content
SAU Community

R32 Gtr Disk Upgrade Ideas ?

whitesky
 Share

Recommended Posts

whitesky Contributor

whitesky

Posted
Posted

All,

I'm in the process of trying to source larger diam disks to put on my R32 GTR.

I want to keep the standard calipers, so i'm looking at the 324 R34 GTR ones.

I need brackets or " dogbones" for these and wondered if anyone knew where to get em ( have tried roguepi but he seems pretty hard to get the hold of )

Anyone else who has gone other directions, pls feel free to suggest.....

There are a few other brands of disks ( bmw, audi ) that i could use, but then i'd have to get dogbones made, and thats more $$.

Input appreciated

Thanx

Link to comment
https://www.sau.com.au/forums/topic/101801-r32-gtr-disk-upgrade-ideas/
Share on other sites
GTR32 Rising Star

GTR32

Posted
Posted

Going to bigger discs is OK as long as you need to do so for cooling purposes etc as it's not going to stop you faster or feel better. Going to a disc large enough to make the hassle worthwhile will probably present pad overlap issues.

If you want better feel etc look at the calipers and pads.

Standard brakes in good shape with good pads can lock up R compound tyres - do you need more?

Brembos are a good easy conversion. Try searching for posts by Roy on this, it's been covered a lot before and he's done a fair bit of research etc.

whitesky Contributor

whitesky

Posted
  • Author
Posted

thanks for the input GTR32.

I want to go bigger for heat dissapation as i have cracked my cross drilled disks. I'm running Ferodo DS2500 pads, which pull the thing up very well on the track, but as with most GTR's they brakes get very hot.

The pads cope very well with the heat, but the disks dont. I guess i could go better quality disks as the ones i cracked are whatever was on the car when i got it.

I'm going to put ducts to them too, but thought i would consider a bigger disk if i could while i was at it.

T04GTR Grand Master

T04GTR

Posted
Posted

33/34 gtr ones work really well. the fronts still get red hot but. the rears work suprisingly well.

im running 34/33 rears and f40 343mm floating brakes on the front.

rears only dull red fronts bright orange!!!

i had 33 gtr ones on the front but they dont cop the heat and take ages too cool.

stock 32gtr rears are way too small and get way to hot and crack inhalf!!!

it happend.

gotta love the old road. :lol: :lol:

so in reality it depends how hard ur gonna push ur car. bigger is better.

a355mm front with big reds will be the best i recon. can fit 17s over them too.

predator Grand Master

predator

Posted
Posted

For the rears: R32 GTR, R33 GTST & R34 GTT discs are all the same diameter, and thickness.

The only difference is the R33 GTR rears which are only 3mm bigger diam, and 4mm thicker. I guess its the added 4mm thickness that makes a big difference.

For the rears whitesky I have a feeling you could get by with just swapping the discs for the thicker ones?

whitesky Contributor

whitesky

Posted
  • Author
Posted

thanks to everyone for all your input and help, its much appreciated.

Roy iam runiing 17 inch wheels.

I dont want to spend brembo conversion money, just looking for a bigger disk that i can dogbone to fit.

Fully floating or brembo would be great but i dont want to spend 1500 upwards.

I guess i was hoping to get some disks and make them fit for about 600 bucks.

Cooling ducts from the front lip are the plan, to help ease the pain.

Any more suggestions welcomed......

Roy Grand Master

Roy

Posted
Posted
33/34 gtr ones work really well. the fronts still get red hot but. the rears work suprisingly well.

im running 34/33 rears and f40 343mm floating brakes on the front.

rears only dull red fronts bright orange!!!

i had 33 gtr ones on the front but they dont cop the heat and take ages too cool.

stock 32gtr rears are way too small and get way to hot and crack inhalf!!!

it happend.

gotta love the old road. :lol:  :lol:

so in reality it depends how hard ur gonna push ur car. bigger is better.

a355mm front with big reds will be the best i recon. can fit 17s over them too.

What do you think of the F40 caliper? Looking at the prices they go for 2nd hand, dido the Porsche calipers i would be inclined to go the AP 4 pots with a 330x32mm rotor.

That said that still an expensive upgrade...ducting is worth a go...when i get my thing back to Sandown im going to try and run a channel of the data logger to the front right rotor and see what temps it sees, and what/if any effect a couple of duct variations has.

Short of spending big money, id have a go at some ducting, and some DBA 5000 rotors. Seems to be a good budget upgrade. Sadly with brakes there is no real cheap fix, especially with GTRs because of their weight and power :D

I also know of a friend that runs out of brakes when he drove his WRX at Eastern Creek (normally not very hard on brakes). But when his cousin drove the car he had no problem with the brakes...and went quicker, so learning how to brake properly is probably the cheapest upgrade...something i dont know how to do as i am always flat spotting semi slicks :P

Sydneykid Grand Master

Sydneykid

Posted
Posted (edited)

The best two pieces of advise on here;

Standard brakes in good shape with good pads can lock up R compound tyres - do you need more?
I also know of a friend that runs out of brakes when he drove his WRX at Eastern Creek (normally not very hard on brakes).  But when his cousin drove the car he had no problem with the brakes...and went quicker, so learning how to brake properly is probably the cheapest upgrade

I would add, stay away from drilled disks, slotted are the go.

Then spend the saved money on handling upgrades, some circuit specific driver training and the lap times will be faster.

If you still want larger rotors, then UAS do an upgrade for around $800 complete (DBA 4000 series rotors, bolts and adaptors);

skystg1brakekit-s.jpg

The DBA5000 series (floating disk) upgrade to the above is around $500 extra.

:P cheers :)

Edited by Sydneykid
Roy Grand Master

Roy

Posted
Posted
Boys,

I have just fitted these under 18 inch rims...

Front 355 * 32MM 6 POT

Rear 343 * 28MM 2 POT

front_small.jpg

rear_small.jpg

Don't muck around, get the best you can afford.

See you at Calder on Feb 11.

Regards

Andrew

May i ask how much the 6 pot front upgrade was???

And Ronin, its tough enough winning an ebay auction against just the poms, without having ot outbid Aussies as well:rolleyes:

And SK, i would have tended to agree with the std brake statement...but one thing i have noticed is that places like Calder and Sandown are much harder on brakes then some other tracks. And turn 1 at Sandown, its nice to know you have plenty of pedal considering how many cars roll there :)

And these days there are plenty of 1650kg GTRs with std rotors, calipers etc pushing out 250-280rwkws...the R32s do seem to struggle more then R33s etc.

At sprints they may only have to hang in there for 3 laps so worst case you just need to drive with brake conservation in the back of your mind...until i can afford those 8 pot Brembos on 360mm rotors that is :P

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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • sunsetR33
      Replacing turbo water line - any recommendations or advice?

      By sunsetR33 · Posted

      One thing I can tell you is, do it properly the first time. If you encounter unexpected problems just let the car sit for a week or two if you have to get some other parts or figure stuff out.  I'd have said go and use as many OEM parts as possible but since you want to change the turbo later on a custom kit is probably the better choice. Since I have no experience with RB25 just compare parts diagrams and images before buying a line kit and it should be easy to see if it has everything you need. Amayama has very good parts diagrams and part number lists, that is what I used a bunch to figure out what I might need. And don't forget to plan ahead and possibly renew other stuff that's easy to get to while you're in there doing the turbo lines. Happy wrenching
    • sunsetR33
      Unpeeling the Orange

      By sunsetR33 · Posted

      Update 4:   Hi all, good news. Engine is running and all the gaskets and seals seem to be working as intended. No leaks so far, even the JB Weld seems to hold. I flushed out the old coolant a few times and put in fresh coolant, not Nissan stuff, I decided to try the Ravenol Protect FL22, they claim it works for a wide variety of JDM cars and the opinions on it by some people were pretty good. And it has the nice poison green color! And man am I glad I bought a coolant system tester earlier this year, vacuum filling works wonders on this engine. I can definitely recommend this to anyone still doing it the old school way. All you need is compressed air supply. Will have to do a small test drive as soon as I can, I removed the gauge cluster again as the tacho needle was still bouncing around a bit but it was much better than before already.  I also found some cracks on all 4 tires inner and outer sidewalls. Apparently these tires should 't be parked on for extended periods or be kept under 0 degrees during storage, which I did not know. Clearly the previous owner didn't look into those details either, he probably bought them just cause they are cool semi-slicks. I'm just wondering how tf I am supposed to reach 30-80 degree tire temperatures on the public road consistenly, these tires were never going to work for my use case. I'll probably order Continental SportContact7 ones as these are the best allround summer tire available right now and I don't think I'll need anything crazier for now. Do let me know if you have experience with various tires and which ones you recommend.
    • sunsetR33
      Unpeeling the Orange

      By sunsetR33 · Posted

      You have no idea how many goddamn boxes I received these past three months haha Most have been put to use by now though, luckily
    • sunsetR33
      Unpeeling the Orange

      By sunsetR33 · Posted

      Not going to pretend I didn't do a bit of junky work this time around, but mostly due to the fact that some things I am not willing to spend days fixing right now, like wiring. I try to do most things properly the first time around.
    • sunsetR33
      Unpeeling the Orange

      By sunsetR33 · Posted

      Regardless of neglect or incompetence, fixing either is tedious and annoying. Most of the neglect on my car is definitely rust. I hope I can at least pass inspections later on and they won't fail the car due to slightly corroded hardlines. I was generous with rust converter and wax and it looks ok, most lines in the rear are hard to see properly anyways.  Definitely will test them though to make sure they don't rupture under pressure, in that case the car isn't going anywhere this year.
×
×
  • Create New...