Last January I had a full set of DBA long life slotteds fitted - which has been all good so far. But today the workshop rings me to advise that the rear disks are warped and will require machining. The REAR disks - which I thought very odd. They asked me if the car had ever been on the track or driven extended mileages with the handbrake on - to which the answer is no in both cases. So what could have caused this?

Anyone got a full set of slotted and cross drilled DBA Golds's on a TJ? How are they? Maybe I should go up a notch in the product range next year.

Unfortunatly a all too comment issue we have found with the DBA range of baseline rotors.

The problem is exasperated with any level of hard driving and especially with anything other than a basic compound brake pad. Kevlar and otehr specialised pads eat DBA for breakfast.

I can't comment on the higher level DBA rotors which may not have the same issues but the cheapo base line slotted / drilled DBA range are really nothing less than an equivelent to standard mitsubishi rotor with looks.

Unfortunatly a all too comment issue we have found with the DBA range of baseline rotors.

The problem is exasperated with any level of hard driving and especially with anything other than a basic compound brake pad. Kevlar and otehr specialised pads eat DBA for breakfast.

I can't comment on the higher level DBA rotors which may not have the same issues but the cheapo base line slotted / drilled DBA range are really nothing less than an equivelent to standard mitsubishi rotor with looks.

So can you recommend something else that is less susceptible to this problem? It's got Bendix Advanced pads on it BTW - nothing too extreme

Either get just DBA slotted rotors or look for something like EBC.

http://www.ebcbrakes.com/Automotive.html

Either get just DBA slotted rotors or look for something like EBC.

http://www.ebcbrakes.com/Automotive.html

Yeah Sharkie's got those - maybe they're better. This stuff gets done at MRT and I believe they use EBC from RPW.

BTW - your Eclipse HU in the Ralliart - is the DSP functional?

I had a full set of DBA GOLD's crossed drilled and slotted on my TH and found them to be weaker than the standard brakes.

They also warped on me after only a few weeks and a few thousand kms.

I drove the car hard but no harder than the 90000kms that the standard rotors stood up to.

Look **** hot but waste of money, wouldnt do it again.

I had a full set of DBA GOLD's crossed drilled and slotted on my TH and found them to be weaker than the standard brakes.

They also warped on me after only a few weeks and a few thousand kms.

I drove the car hard but no harder than the 90000kms that the standard rotors stood up to.

Look **** hot but waste of money, wouldnt do it again.

Oh this is terrible! lol lol lol.... I read somewhere the EBC rotors are UK made - sounds okay to me I think I'll go that way.

The RDA range of rotors seem to stand up to the task, and there cheaper then DBA.

Strange the rears would warp and i cant see how the handbrake could affect them as there a drum handbrake,ie. they make no contact with the rotor surface.

One thing i noticed with DBA's is they have a lot of pedal/pad chutter from the slots, this doesnt seem to be noticeable on the RDA rotors

Had slotted DBA's on my TE the rears warped too. They are pretty ****, maybe 4000 will be better which I can get for the AWD but I will look around before going with DBA again.

Several years ago I had a set of DBA slotted rotors for the front of my KS xi with new pads (cant
remember pad brand but wasn't metallic or semi-metallic). The rotors wore down to below
minimum in less than 10000kms. I got ABS to fit OEM rotors and called dba. The SA marketing
manager called me and asked whether I bought genuine ones etc, I said yep, still had the box. So
he sent me an email saying that he'll give me a new set for free the next time I need it.

i'd say go with RDA.

mine have been pushed to the limit at track days and they are still fine (this is with EBC greenstuff pads too).

i'd say go with RDA.

mine have been pushed to the limit at track days and they are still fine (this is with EBC greenstuff pads too).

RDA? Never heard of them - where'd you see these or get these from?

thanks for all the feedback everyone - I'll definitely change over next year when the brakes are due again.

Rotors and Drums australia
ph: 1800 880 155
or www.rdaustralia.com.au

try this website:

http://www.rdabrakes.com.au/

good to see there website they print on there business cards doesnt work hahahahaha lol

Hmmm. Only do slotted? not cross drilled as well? Suppose i should ring 'em....

Just read this i have DBA slotted rotors on front, have found no problem so far (maybe 8 months), i actually feel like my brakes have been vastly improved with these. I hope i dont experience problems like this though but i have no complaints

Just read this i have DBA slotted rotors on front, have found no problem so far (maybe 8 months), i actually feel like my brakes have been vastly improved with these. I hope i dont experience problems like this though but i have no complaints

Ditto for me too....... I've actually got a X drilled / slotted combo (X drilled front / slotted rear) and have had no issues with either (fitted late last year or early this year). Having said that - I generally don't drive my car as hard as I know some of you guys do :redface: , I will use tippy to 'engine brake' when it is convenient, I followed the bedding in proceedure for my Bendix advance pads which were fitted at the same time TO THE LETTER, and I take a great deal of care to ensure my rotors aren't exposed to water when hot.

Having said that - I will bare in mind how many have had bad experiences with DBA products, and will definetly keep this other mob in mind when and if I need to replace my current braking hardware.

Ditto for me too....... I've actually got a X drilled / slotted combo (X drilled front / slotted rear) and have had no issues with either (fitted late last year or early this year). Having said that - I generally don't drive my car as hard as I know some of you guys do :redface: , I will use tippy to 'engine brake' when it is convenient, I followed the bedding in proceedure for my Bendix advance pads which were fitted at the same time TO THE LETTER, and I take a great deal of care to ensure my rotors aren't exposed to water when hot.

Having said that - I will bare in mind how many have had bad experiences with DBA products, and will definetly keep this other mob in mind when and if I need to replace my current braking hardware.

I hear what you say but I can assure you my car is spoiled for correctness. The brakes have been used vigorously on a run here and there, but nothing that got to smoking stage, let alone fading; the fluid's been changed again at a service since disk fitment 8 months ago, and all wheels are always put on with a torque wrench. I do realise that the Magna brakes are 'marginal' in design but really, this has been a poor showing by DBA.

try this website:

http://www.rdabrakes.com.au/

Hmmmm.... they seem to be an agent for EBC more than anything else. I wish PBR would do one of their upgrade kits for the Magna - they've got some great disk and caliper kits for Falcodores.

At least they have a warranty policy - I just noticed last night that there's no warranty page on DBA's site.

or you could just go all out and get a wilwood 6 piston upgrade......wish i could :doubt:

Just read this i have DBA slotted rotors on front, have found no problem so far (maybe 8 months), i actually feel like my brakes have been vastly improved with these. I hope i dont experience problems like this though but i have no complaints

same here

no problems since fitting my slotted rotors ... using bendix advance pads and although my brakes r squealing like a b!tch i did feel an improvement in the braking department since the upgrade (not hard since the stock stuff was sh!tty as)

RDA Rotors are better built and are cheaper. Go with them

I have them on my car and there has been no issues.

Or go all out and go some Brembos.

Personally though my choice would be RDA / EBC, one and the same thing in Australia I believe.

or you could just go all out and get a wilwood 6 piston upgrade......wish i could :doubt:


Wilwood calipers flex to much. wouldnt use them even if they were free.



RDA are just a supplier for EBC but i think they are either the only one or the main one not sure.

At my work we buy direct from RDA and at wholesale prices aswell :D

Wilwood calipers flex to much. wouldnt use them even if they were free.



RDA are just a supplier for EBC but i think they are either the only one or the main one not sure.

At my work we buy direct from RDA and at wholesale prices aswell :D

yeah - it seems to be that RPW are using EBC rotors as well, so I guess that's where I'm going next.

i have a warped rotor... just on standard TJ gear. its ****ed and sounds SHOCKING! :( cant afford to fix it tho

This is very interesting and concerning as these would have been part of the group buy I did.

I had faith in this product from my own experience which is that I've had my front slotted for a few years now and am on my second set of bendix advance pads without a prob and I do treat them very very hard at times.

It seems the common failure is the rears would you guys agree.
I will contact DBA as We bought about 6-10 sets in that buy.

This is very interesting and concerning as these would have been part of the group buy I did.

I had faith in this product from my own experience which is that I've had my front slotted for a few years now and am on my second set of bendix advance pads without a prob and I do treat them very very hard at times.

It seems the common failure is the rears would you guys agree.
I will contact DBA as We bought about 6-10 sets in that buy.

It is from that buy and I must say until this turned up I had no problems with them and was pleased with the performance. But I had further discussions with MRT today - the people that did the work on the car - and although they sell the DBA they're not exactly over the moon about the quality of the things either. But anyway, I got them skimmed today and new pads done so that's it till next year at least then I'll probably change to EBC (unless the new 380 happens to have nice donor bits!).

Anyway PhilsTH, do let us know if there's any comment back from then - be interesting to hear.

I'll probably change to EBC (unless the new 380 happens to have nice donor bits!).

I was thinking allong the same lines :D

(unless the new 380 happens to have nice donor bits!).

I was thinking allong the same lines :D

I was thinking allong the same lines :D

They do have ventilated rears!!!! would be very interesting if they can be transplanted onto a 3rd gen...... who's gonna be the first to try??

Okay after all the hooning (!) around on MM05, my pedal really was having pulsing fits under hard braking and it was getting quite annoying. Given that MRT had machined the rear disks with no change in this pedal pulsing, logic suggested machining the front disks as the next step to do.

I sent the car down the the local Haberfield Midas shop today with a request to machine the front disks. They reported that the fronts did have some warpage (now, at any rate) but in their opinion the pulsing and possibly the warpage itself, were caused by the calipers being jammed on their floating caliper pins. They pulled the pins, cleaned and re-greased them, and refitted them to the machined disks. Problem absolutely gone, brakes now working perfectly.

Moral of the story apparently - when you change the pads on a Magna, its a 'best practice' maintenance issue to clean and regrease the floating caliper pins!

They do have ventilated rears!!!! would be very interesting if they can be transplanted onto a 3rd gen...... who's gonna be the first to try??

The size of the 380 rotors seem the same as the AWD/ralliart rotors. So I'm guessing its basically the same setup including clipers :P