Jump to content
SAU Community

Recommended Posts

Hi Guys,

The brakes on my 33 GTS have been squeeking a bit lately, so today I decided to pull a wheel or two off and have a look at them. Popped the front wheel off, took off the caliper and pads, took off the rotor and measured the thickness with a micrometer. It was 21.3mm. I have looked at the DBA Catalogue but can't find the specs for an R33 non-turbo. Not 100% sure why (I believe it's because I have an LSD, but not really sure) but I have 5 wheel studs... even though it's a non-turbo... meh anyway the GTST is specified as having a 28mm minimum thickness on the front rotors... this means that either my rotors are 6.7mm under the minimum, or I have totally different brakes.

After finding this I decided to take a look at the rears. I pulled the wheel off, took off the caliper, but couldn't manage to get the rotor off... anyway i again measured with the micrometer and found that these were 8.6mm thick. The DBA Catalogue specifies 16mm as the minimum for the R33 GTST, so again either my rotors are MASSIVLY undersize (by 7.4mm) or are not the correct discs. I also noted (not sure if this is normal or not) that while the front discs were ventilated, the rears were solid.

Basically what I want to know is what the specs are for the new/minimum thicknesses for the R33 GTS, and is it that my brakes are massively undersize or off a totally different car?

Edited by Samon
Link to comment
https://www.sau.com.au/forums/topic/142810-what-rotors-do-i-have/
Share on other sites

Not really sure if it means anything, but I also noted that I have twin-piston calipers on the front and single-piston calipers on the rear. Everything looks pretty standard under there.

After looking through my R33 ENGINE SERVICE MANUAL that i bought off eBay, i found that there are two specifications for front-brakes: 20mm minimum for the single-pot calipers, and 24mm minimum for the twin-pot ones. For the rears it specifies an 8mm minimum.

I am rather confused. Where did DBA get the 28mm and 16mm from? Also, my rears are within the nissan specs, but my fronts are within the specs for the single-pot, even though it has twin-pots. From looking at my front rotors it is extremely hard to believe that they were EVER the 26mm that the manual specifies for the standard thickness for the twin-pot calipers, so I think I will just leave it all as is and see how it goes. I certainly have no problems stopping, and haven't noticed any brake fade occurring, so i think it's alright.

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

    • But first....while I was there, I also swapped across the centre console box for the other style where the AV inputs don't intrude into the (very limited !) space.  Part# was 96926-4GA0A, 284H3-4GA0B, 284H3-4GA0A. (I've already swapped the top 12v socket for a USB bulkhead in this pic, it fit the hole without modification:) Basically to do the console you need to remove the DS and PS side console trim (they slide up and back, held in by clips only) Then remove the back half of the console top trim with the cupholders, pops up, all clips again but be careful at the front as it is pretty flimsy. Then slide the shifter boot down, remove the spring clip, loose it forever somewhere in the car the pull the shift knob off. Remove the tiny plastic piece on DS near "P" and use something thin and long (most screwdrivers won't fit) to push down the interlock and put the shifter down in D for space. There is one screw at the front, then the shifter surround and ashtray lift up. There are 3 or 4 plugs underneath and it is off. Next is the rear cover of the centre console; you need to open the console lid, pop off the trim covering the lid hinge and undo the 2rd screw from the driver's side (the rest all need to come out later so you can do them all now and remove the lid) Then the rear cover unclips (6 clips), start at the top with a trim tool pulling backwards. Once it is off there are 2 screws facing rearwards to remove (need a short phillips for these) and you are done with the rear of the console. There are 4 plugs at the A/V box to unclip Then there are 2 screws at the front of the console, and 2 clips (pull up and back) and the console will come out.
    • So, a bit of a side trip, but one that might be interesting for people with JDM cars and japanese head units. I know @Pac previously posted about a carplay/android auto adapter he installed which used the AUX input, and @V35_Paul put in one of the Tesla style units that replace both screens. The option I went with was a Lsait LLT-YF-VER5.87_2 (https://www.alibaba.com/product-detail/Lsailt-8GB-Android-Multimedia-Interface-for_1601187633672.html). Price was $1,150 for a single unit although they are much cheaper if you are willing to buy 2....$857ea. Make you you get the version 2 not version 1, it is faster and has a better UI - this is the manufacturer listing: http://www.lsailt.com/product/348.html. BTW if you've never bought from Alibaba before, don't be concerned....these guys can't stay in business unless they are responsive, ship fast etc, they were excellent (probably faster shipping than most local places) So, this was my task for a lazy Sat afternoon....looks complex but was all done in a few hours (it probably helps that I had some of it apart before so it was a bit familiar). I also decided to add a HD USB drive recorded at the same time and the unit also supports an aftermarket reverse cam (if you don't want to retain factory) and also AV in and HDMI out It looks much worse than it is, in fact in was genuinely all plug and play (no custom wiring at all). This video was pretty good (skipped a few steps), unfortunately they are an Aussie seller but no longer sell this unit (I guess Carplay/AA adapters are easier to install and much cheaper) https://www.youtube.com/watch?v=T5hJfYOB8Dg
    • That still isn't a lot to go on. I don't have a Y50 Fuga Head Unit wiring diagram. I can say that a lot of nissans of that age shared head unit plugs, so if you are in Australia something like this would probably help: https://aerpro.com/app091# You plug that into the car loom, then either plug the head unit ISO into that (if it has ISO), or you buy and ISO adapter harness that you wire in. Bit of stuffing around, but once you have ISO its easy to change things in future.
    • It is a kunfine Android screen . Does anyone know the wirering diagram of the fuga ??
    • just an update to this, poor man pays twice  Tried sanding down the pulleys but it didnt do the trick. Chucked another second hand alternator in the na car which I got for free off my mate and its fixed the squelling. Must have been unlucky with the bearings.    As for my turbo car, I managed to pick up a cwc rb alternator conversion bracket + LS alternator for 250 off marketplace, looked to be in really good nick. Installed it , started the car and its not charging the battery.... ( Im not good with auto elec stuff so im not sure if this was all I needed to do but I verified such by using a multimeter on the battery when the engine was running and I was only getting 12.2v )   I had to modify the earth strap for the new LS alternator , factory earth strap was a 10mm bolt which did not fit the bolt on the LS alternator which was double the size so I cut it off , went to repco bought some ring terminals that fit, crimped it onto the old earth strap and bolted it up to the alternator , started the car and same issue. Ran like shit and was reading 12.2 at the battery.  For a "plug and play" advertised kit thats not very plug and play but alas.  My question is , am I missing something ? Ive been reading that some people recommend upgrading the stock 80 amp alternator fuse to a 140 amp but I dont see how that would stop the alternator charging especially at idle not under load.  Regardless ive pulled it out and am going to get it bench tested by an auto elec tomorrow but it would be handy to know if ive missed something silly or have done something wrong.   
×
×
  • Create New...