Jump to content
SAU Community

Recommended Posts

I have managed to find someone that will sell me some new RDA front/rear slotted rotors for a very good price for the gts-t. They are similiar od and thickness to the DBA equivalent rotors.

Who has used the RDA's and how do they compare to the DBA's??

I plan to use the RDA's for track days with the stock 4 piston r33 gts-t callipers and racebrakes compound pads till i get more $$ for some brembos or ap racing callipers.

Link to comment
https://www.sau.com.au/forums/topic/84358-rda-rotors/
Share on other sites

Do a search :D:D:D:D

It is a bit hard at the moment but there was a really good thread on these exact things about a year ago. Try searching rotor threads that Roy has posted in.

I seem to recall the general consensus was that they were good value and did the job.

Link to comment
https://www.sau.com.au/forums/topic/84358-rda-rotors/#findComment-1526885
Share on other sites

i have used them before and didn't have any problems but i know of plenty of people who have had problems with them. They are by no means a 'performance' rotor. they are just a cheap arse made in china disk.

all depends on how cheap is cheap and how much importantce you place on your brakes.

Link to comment
https://www.sau.com.au/forums/topic/84358-rda-rotors/#findComment-1526895
Share on other sites

Rotors & Drums commenced operations in Melbourne Victoria in 1987 and has grown from a small trade and retail parts supplier to today offering the largest range of Disc Brake Rotors and Brake Drums in Australia and New Zealand.

Our range encompasses some 1530 vehicle applications and covers everything from Alfa to Volvo and all makes in between.

We also stock a large range of applications that were not directly released into the Australian and New Zealand market, but have found their way onto our roads by way of private import.

Rotors & Drums is Australia’s largest Independent Rotor and Drum wholesaler and is a family owned company.

U sure they are made in China????

Link to comment
https://www.sau.com.au/forums/topic/84358-rda-rotors/#findComment-1526903
Share on other sites

Denham I hand you your ass at the track using them....and a few guys using the rediculously priced DBA stuff.

Go with them mate. Never heard of a failure and yet the DBA stuff is a bit of a concern in some circles and I do know of failures and a well known race brake expert dislikes them.

DBA sponsor Improved Production in NSW. RDA sponsor same in Vic.

Link to comment
https://www.sau.com.au/forums/topic/84358-rda-rotors/#findComment-1526986
Share on other sites

Ive been using the RDA stuff for a while and like them.I havent used them for circuit racing but use them for drag racing in one of my cars which uses green stuff pads and they work well cold braking at 140mph. I had a bit of a bad run a few years ago with dba rotors where they would start to shuder and stuf after a 1000k's of hard driving and whenever i rang and asked for a reason why it was happening i was allways told it was because of brake pads or not being bed in properly. So i tried some cheap rda rotors and never had the same problems again.

Link to comment
https://www.sau.com.au/forums/topic/84358-rda-rotors/#findComment-1527470
Share on other sites

Denham I hand you your ass at the track using them....and a few guys using the rediculously priced DBA stuff.

Go with them mate. Never heard of a failure and yet the DBA stuff is a bit of a concern in some circles and I do know of failures and a well known race brake expert dislikes them.

DBA sponsor Improved Production in NSW. RDA sponsor same in Vic.

Jeff u think the gtr size 325mm od fronts of the rda can be used with an adaptor to fot on the gts-t like the dba gtr ones can?

The GTR ones are not much more but are alot bigger.

Link to comment
https://www.sau.com.au/forums/topic/84358-rda-rotors/#findComment-1528126
Share on other sites

Denham, consider the thickness as well. Are they 33mm compared to the 30mm of the GTSt size?

If they will fit then do it. Get the spacers made and enjoy. Might be some extra cost in the final solid brake line elbow mod though.

Link to comment
https://www.sau.com.au/forums/topic/84358-rda-rotors/#findComment-1528289
Share on other sites

I know brisby is using some 5000 dba's with adapter and apparently working well for him. Is racebrakes the only place that sells the adapter?

So ur using the rda gts-t replacement front rotors right? How many track days have they seen and what condition are they currently in? I can get them for $150 each front and $75 each rear.

whats the final solid brake line elbow mod required?

Link to comment
https://www.sau.com.au/forums/topic/84358-rda-rotors/#findComment-1528304
Share on other sites

Mine are not DBA 5000s, they are only the 4000s. Race Brakes no longer do the adaptors, it seems that RB - Vic isnt a fan of them , so stopped doing them based on the fact that they feel it is to much a compromise.

Be careful when grabbing too thick a rotor, you may find you are needign to machine down the pads so you can get them to fit, as the calipers may only be designed for 28/30mm etc rotors

Link to comment
https://www.sau.com.au/forums/topic/84358-rda-rotors/#findComment-1528403
Share on other sites

Mine are not DBA 5000s, they are only the 4000s. Race Brakes no longer do the adaptors, it seems that RB - Vic isnt a fan of them , so stopped doing them based on the fact that they feel it is to much a compromise.

Be careful when grabbing too thick a rotor, you may find you are needign to machine down the pads so you can get them to fit, as the calipers may only be designed for 28/30mm etc rotors

Both the 4000 and 5000 fronts are 30mm thick.

I am talking front rotors here not back.

How else do you fit bigger than 296mm front rotors on a gts-t?

Link to comment
https://www.sau.com.au/forums/topic/84358-rda-rotors/#findComment-1528420
Share on other sites

MILD TRACK USE WITH EBC GREENSON

THE MAZDA,

A MATE OF MINE USES THEM ON HIS E30 RACE CAR WITH

EBC PADS AND THEY LAST ABOUT 70-100 HARD LAPS

DEPENDING ON WHAT TRACK,

FOR A WEAR AND TEAR ITEM THEY ARE PRETTY GOOD

VALUE FOR MONEY

do they need the alloy hats to fit or are they direct fit?

Link to comment
https://www.sau.com.au/forums/topic/84358-rda-rotors/#findComment-1528780
Share on other sites

Denham

No they are not alloy hats, especially not at that price.

The thickness of a GTR disc is greater (33mm) than the GTSt so I'd be concerned if they are selling that size in a narrow disc of 30mm. Maybe just an option for GTSt but not for GTR.

Link to comment
https://www.sau.com.au/forums/topic/84358-rda-rotors/#findComment-1529133
Share on other sites

Denham

No they are not alloy hats, especially not at that price.

The thickness of a GTR disc is greater (33mm) than the GTSt so I'd be concerned if they are selling that size in a narrow disc of 30mm. Maybe just an option for GTSt but not for GTR.

The dba 4000's for the gtr are also 30mm thick.

I can get the rda's for cheaper than that site i posted the link to :P

Are these the fronts ur running geoff?

http://www.brakesonline.com.au/catalog/pro...roducts_id=1731

Link to comment
https://www.sau.com.au/forums/topic/84358-rda-rotors/#findComment-1529153
Share on other sites

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

    • Great work! Give it a clean up with some Emery paper, and I'd run a thread die over the threads too to clean them up. It will make reinstall much easier, and also life easier for the next time it needs to come out.
    • I'm not a fan of high humidity, it's one reason I don't mind being further inland out Ipswich, except the last 3 odd years, the drought broke, and it won't stop raining, which is making the humidity nearly unbearable when the rains are in during summer! For me, my body hates the cold, once the cold sets into my body, I'm totally screwed. I end up with severe muscle spasm in my back/shoulder muscles, and it feels like someone is trying to tear the muscles out. I have no issues with it getting stupid hot, so long as the humidity goes away. So the last 3 years as above, have been woeful! Ha ha. However, June 1st, and I'm only just converting from shorts and a tee, to long pants and a t shirt. And that's mainly as it's a bit wet and miserable and I wanted to work on a car.
    • I much prefer colder weather to hot weather, and especially prefer cold to hot and humid, Goulburn does gets pretty warm in the hotter months, but, I've found the humidity there is not as painful as even Sydney, the humidity up north is to oppressing for this old rooster  In saying this, it does get rather "nippy" in Goulburn for early morning, late in the evening walks, but nothing that a layer or two, some thermal gloves, and a beanie doesn't fix to make it an enjoyable experience, which is much more bearable to me than the oppression of heat and humidity,  especially at night when your trying to sleep If I recall correctly, a "wise man" once said that the "Southern Tablelands" was gods country, and I will not argue that point with him for the fear of a "permaban" LOL In car part related news: My intake is currently in Botany getting processed for the last leg of its shipping journey to my door   
    • Had a go at the stuck crush tube this afternoon. Tried things like grips and a chain wrench first but wouldn't just twist straight off. So got to work with a drill. Started small and kept a depth stop on to make sure I didn't drill into the bolt. Made a line of drill holes all the way up and enlarged them. Then a combination of chisel and Dremel to split it all the way up. Levered the split to get oil in there and eventually it gave a bit while levering. Worked it back and forth with loads more oil till it was spinning freely, then with grips I could work it downwards and off. And no significant damage to the bolt (not by me anyway - just the 27 years of rust)
    • Well, I'm tired. I'm tired because about 4PM yesterday, before today's appointment someone immediately bought my bumper. They couldn't get it any other day as they're on the way back to NSW. So I had to do that big GTR conversion I had been planning. Unfortunately, the information on SAU about what you need and how this is done is incomplete. So what should be a simple bolt on affair, yeah, it's not. Did you know if you use all GTR items the bonnet won't close? This little manuever sent me into about 1am the night before trying to dodge a way to get it closed. I will have to revisit this in the next few days  - or maybe not, I may let a body shop figure it out. It all needs to come up and my motivation to pull the bumper off is low. It also seems to hit things in the bay where the GTT bonnet didn't. Yes I used 100% new OEM GTR items. Today, I had the joy of driving to the dyno looking like this: Given I had roughed in the fuel and given sensible but pretty conservative timing, I didn't really bet on having the car drive out any real difference than when it drove in. Sadly due to a miscommunication and laptop fun and games (and almost bricking the dongle, prayers and firmware updates indeed), I ended up using HP Tuner credits to licence the car that was already licenced. So in the end my laptop was used. It turns out my butt dyno is still well calibrated after all this time. The 325kw was on 74% Ethanol, the 313kw line was on 98. The other line is the 'before' line which was 281kw. While the numbers are pretty low, they're pretty in line with what you'd expect. Even if US dynos bump the whole result up about 50KW, gaining 10-15% is similar gains.  The curve of the cam is pretty much spot on with what was discussed as well. All this said, it still feels bad to not see the number you secretly want to see. Even if the car drove great beforehand, and I knew pretty confidently the car would drive out much the same way it drove in due to the nature of a wellish dialled in LS1 not gaining much if anything at all from being tuned from where it was. As expected, the car isn't particularly sensitive to running it at anywhere between 12.0 and 13.0 - And the initial timing at 20deg and 12.0 made 308KW. So 3 degrees of timing, and leaning it out to 12.7 for 5kw, anything above stopped giving any benefit until E85 (which has an additional 2 deg as before). Car itself behaved entirely fine. I found out that 100C = 1.15V! IAT at about 7pm was 19C. I might mess with the bonnet mounting.. but given the REO NEEDS TO BE CHOPPED TO FIT A GTR BAR this is possibly something I may leave gathering (more) dust until it returns to paint jail.
×
×
  • Create New...