Advice on slotted rotors

[nismo_au]

Hi all, I had a quick search around but couldn’t exactly find what I was looking for, so here it goes. Breaks are coming to the end of their life and unfortunately the standard rotors are now unable to be machined back any further (front currently at 27.1mm). I have decided to go with slotted rotors this time around as one brand that the break specialist suggested was only around $50 more than a replacement stock item. Now what I would like to know is if anyone has tried slotted rotors by a company called RDA (Rotors and Drums Australia) for their series 1 GTS-t R33 and what were they like etc?

At the moment tossing up the slotted RDA or the slotted DBA 4000 club-spec rotors, can anyone give me some reasons that would make my decision between the two easier? From what I can see on the forum most who have used the slotted DBA have been fairly happy. Information on anyone’s experience with either would be appreciated.

[jlnewton]

Yeah, I put the slotted 4000 DBA rotors on about 3 month back now I think, front and rear. I since have done about two track days at Queensland Raceway (which equates to about 35 laps) and I am very happy with the result. We do sets of 7 lap sprints and have yet to experience any fade. Last weekend I was there and the first set was in 30+ degree heat and there was still no problem. The last set of the day I really gave them a hard time stomping on the brakes and still no fade (and took 1.3 sec of my PB!). So if you have a daily driver, and don't mind the odd track day I highly recommend the DBA club spec rotors. They work very nicely.

[benm]

I too put DBA-4000 Rotors front and rear around 5mths ago. Yet to use them on a track but combined with my RB74 pads (www.racebrakes.com.au) these things stop dammmmn good.

(Now all I need to do is get my master cylinder re-sleeved and im back in the game)

[Craved]

what did you guys pay for the full set!!!

[red900ss]

Do a search for "DBA group buy", it's all there.

If you are a NSW Club member there's details about the discounts in the NSW Members section.

[nismo_au]

Thanks Jlnewton and Benm for the info, think I might go with the DBA rotors as a few track days aren’t out of the question.

[GTRgeoff]

nismo_au I went to my local tyre and brake and he got me some discs, slotted front and regular rear (coulda got slots but they don't work too hard) for $650 the lot.

Want some info? I am going to my first track day on them next sunday at sandown so I can update you then on performance.

[red900ss]

The DBA 4000s weigh less than the standard discs and have very good heat dissipating properties. If you want a very good product for the price you can't go past them.

Just shop around to get the best price as there's plenty of places out there who'll be more than happy to overcharge you.

[nismo_au]

Skylinegeoff that would be awesome. Have fun at the track!

[Mr R32 M-Spec]

I got 4000 series on my car last week and the beast stops better then ever. The old brakes were biting the dust, didn't pull up well and made noise like you wouldn't believe. these are so quiet I don't even know they're there.

[Mr R32 M-Spec]

I got mine from repco and they cost $215 per rotor and $74 for bendix advance pads.

[Paul SM]

I recently ran out rotor thickness with my R33 GTST and, as I do club supersprints, opted to get slotted rotors. The only ones I was able to secure at short notice were DBA, which Race Brakes Australia happened to have on the shelf.

In my case I needed the larger 296 mm diam. (DBA sent out the 268 mm ones before we realised there were 2 sizes and had to start again). I have to say I am very impressed with them; they're 32 mm thick and have great cooling properties thanks to the large ventilation latticework the core and the sheer mass of the rotor. Under heavy braking at Oran Park GP and Eastern Creek they did not exceed 550 degrees. It's possible to tell this by means of colour coded stripes on the rotor which change colour according to the maximum temperature reached.

The stopping power is, needless to say, also very impressive. I'm told the slots help to dissipate the gases which build up between the pad and the disc, as well as helping to clean the surface of the pad.

Worth every penny of the $490 I paid for the pair.

[Mr R32 M-Spec]

I agree. I wished I didn't have to spend 520 on getting them and fitting but afterwards I am so much happeir knowing that I can now stop. and they work. a guy in a merc slammed his brakes on woodville road and I almost rear ended him, the old brakes would not have pulled me up, good bye to the intercooler.....

Go DBA 4000's. try a repco store and they should be cheap. I was quoted 270 per rotor at other shops.

[red900ss]

Wow, $215/disc is a good price off the shelf for the DBA 4963s. :uh-huh:

The group buy was good at the time @$209.00/disc.

[JimX]

Do the DBA4000's also have the kangaroo paw ventillation?

[benm]

Yes

[nismo_au]

Yeah $215 a rotor is a really good price for DBA 4000 series, might give repco a visit today.

[dangerous_daveo]

So whats the difference between the DBA slotted, and DBA 4000s??? Or isnt there a difference at all?

[Abo Bob]

DBA 4000's are slotted but I don't know much else.

[bbenny]

"So whats the difference between the DBA slotted, and DBA 4000s??? Or isnt there a difference at all?"

you can get the 4000s in slotted and not slotted, i think thats the difference...

I got the DBA 4000 slotted from supercheap auto! dont laugh they were awesome, I called up and ordered them one arvo, they had them the next morn, and they only cost $900 for all four including the frieght costs.

best part is they are just simple bolt on replacements, so i had them on in about an hour and a half.

what was even better is that they stopped all the squeeling my performance pads made on the std rotors.

havent had them on the track yet, but they feel awesome on the street.