Right o im not sure if any of you guys have either of these but over the last year my brakes have copped some punishment and they are starting to really say enough. They are warped very badly, and when i was putting my new alloys :D (still can't stop smiling when i think of these) i noticed that the front rotors are in very bad condition with lots of deep goves and burn marks.

So i think bugger it, instead of wasting money to machine them and have them wrap on me again im going to swap the front rotors over with some slotted rotors with bendix high performance pads.

Just wanted to know if DBA brakes warp easily, a few people have suggested they do. I know the cross drilled rotors crack. I know EBC brake rotors are of superiour quality but im thinking really when it comes down to it they can't be that different.

What are peoples thoughts?

i am looking at getting bigger rotors for all four corners with the new wheels - looks are the main part - the braking is the second part!!

i am looking at getting DBA slotted large rotors - but not cross drilled - so this is my intention!!

I have just sent of a quote for DBA slotted brake rotors - sizing 276mm front and 258mm rear to fit TE-TJ.

Will let you know what I find.

Manual

DBA's are Great!!!


The GBM has em, and stops her every time!
X-Drilled and slotted right round, looks wild through mags that show your disks...


BOOYA

How long have you had them?

Grinding or warping at all?

No grinding, NO warping!

there bloody wonderful! id never change mine now ive got em!

Their rite for me!

I heard the new DBA kangaroo print disc's are very good :)

They aren't availible for Magna's. I've had a good long chat with DBA and EBC and im convinced that DBA are the way to go. I've also learned a fair bit about brakes and rotors in general. Very interesting but in fact only 1 out of 1000 suspected warped rotors are actually warped.

Instead its often due to the grip and slip phenonemum (don't know how to spell that one)

I actually have DBA's for the front ordered and should be coming on tuesday. WIll let you know how they go.

But the dealer actually said that the victorian police actually run the slotted dba rotors on all of their persuit cars. He wasnt too keen on the cross drilled ones tho.

I have heard bad reports on the cross drilled as to eating away the pads extremely quickly!!

and they are not necessary - not even the V8 supercars have cross drilled!! now that says something!!

I am just trying to find out that if you replace your rotors to larger rotors - whether you need to modify the caliper bracket or the caliper in any way due to the rotor having a larger diameter

maybe you can help us out on that LHM - i was under the impression they should be a bolt off bolt on change over with a change of pads at the same time - now i am not so sure!!

Manual

I know that the cross drilled brakes crack very quickly and chew pads but i think the slotted are very good. But apparently you can't use EBC pads with them as the compound wares unevenly and causes problems.

I put the DBA slotted rotors on my KR about 2 months ago and they are warped so badly it is sometimes an effort to hold the car strait when braking. Next set, very soon to happen I am going to look for something else I thing.

Gee thats interesting. What pads are you using? What are they made off?

I've been reading a few articles and suspected warped rotors arn't actually warped. Instead the some types of brake pad compound build up on area's on the disc and when you brake the pads grip on the "sticky" part of the disc and "slip" on the clean part of the disc. This can cause a nasty shudder through the steering wheel and is 99% of the time mis diagnosed as warped rotors... It's interesting as i never considered this.

I know EBC pads do this to slotted rotors and anything that use kevlar.

I am using, on Bendix advice, Bendix Ultimate as i have done so for several years however DBA are now telling me to go back to std pads as they are better for higher temps??? The pads are one thing I am going to try but I did a run out test on the rotors witha dial guage and they are definatly warped like hell. :evil:

Hrmmm...

Im suddely having second thoughts about slotted rotors...

What do you think lead them to warp?

ive always used bendix standard with my xdrilled and slotted, and never have i had a problem.

maybe its just the way you drive? :lol:


GBM

I suspect that the Ultimate pads have not been operating efficently as they are designed for very high temperature. In the past I have used them on older cars with solid rotors and had not problems but this may be due to the extra heat generated.
I am going to get these machined and will try some softer pads. Will let you know how it goes. Don't be too put off DBA as in the past many years I have used many of these rotors with no problems. The other thing Magna calipers have big problems with, on both older and newer models is the slide pins getting dirty and locking up. You should always clean these pins when changing pads and lube them with caliper grease.

I dont know abou EBC but I've got DBA.

I have DBA slotted on the front of my car with Endless pads. They've been on the car for about an easy 30,000km. There is no warping, however there is tiny cracks that have appeared all over the discs. The factory discs they replaced had shocking cracking also, and I've seen this on other discs too. Is there any disc that doesn't crack!?

As far as spending $250 for a pair of discs that have seen through much hard work infront of a 400hp street car, they've been excellent. I'd reccommend them for any n/a application.

[quote:745b807242]ork infront of a 400hp street car[/quote:745b807242]

i just woke up but 15mins ago... did you say your car has 400hp? is it a magna :?

man, i need some more sheep, oops, sleep! :(

GBM

Well my car will be the perfect test.

My current stock rotors are extreemly warped but 2 weeks ago I had my brakes not only glowing.... but on fire.

So if anything is going to warp a rotor I am sure it will be my driving so I will let you know how I go!

As far as I know it is a straight swap over rotor... but will confirm that tuesday/wednesday

I've seen my mates calipers on fire, it was quite funny. He was frantically trying to blow them up but they just kept re igniting and torching the paint on his rims... not nice...

But it was bound to happen with the way we were driving down south.

[quote:f512e5eebc]I've seen my mates calipers on fire, it was quite funny. He was frantically trying to blow them up but they just kept re igniting and torching the paint on his rims... not nice...

But it was bound to happen with the way we were driving down south.[/quote:f512e5eebc]

Dude, i drive pretty hard!!! damn hard! but ive never had my calipers catch alight! i tell ya what tho! if i did, id sure catch it on camera :mrgreen:

Muh ha ha ha ha ha!

GBM

Yeah I stopped at a set of lights just at the bottom of one of our mountains down here (Mount dandenong) and I had flames licking up over the front guards. So I turned arround and went as fast as I could up hill without using brakes to put em out.

Did the job but I was a little worried.

Yeah i think if i saw flames comming from my car id be a little worried. My mate was in his Series 3 RX-7 and we have the car absolutle punishment for about 45 mins non stop. He just had a new 13B turbo built with apparent bullet proof internals and seals so i said ok... prove it.

He proved it allright, i have never seen something handle such abuse and its been fine ever since. Rotors are cool.

i havent seen brakes on fire - but i got my mates glowing red and smoking in his excel - i was always much more a better driver than him - even though it was an excel it handled well around corners

but i have seen my mates VH with 308 burst into flames - the air filter became the fuel for the fire - and with a leaky fuel pump andinjectors it was scary - not sure if it was gonna blow or what!!!

not what i needed in my driveway!!

but we got it put out!!

Manual

Seems like a kidnda regular occurance between the rest of you so ive taken this precautionary measure;

- I just dropped into k-mart and bought one of those cool portable fire extinguisher thinggi! hehe.. im gonna bolt it into the the passenger floor door side :D

lets hope i never have to use it :?

GBM

Good idea, I am planning on doing the same!

i woudlnt suggest spraying your rotors with a fire extuinguisher if i were you!!

reasons:

if it puts out the flames - they will re-ignite - the temperature of the rotor will start it blazing again!!

if it is a CO2 extuinguisher - it will instantly cool your rotors - good chance of cracking!!

if it is a powder extinguisher - you get chemical powder over your brakes, and wheels, and suspension - hmm, i dont think i would like that - especially when the heat would bake it on!!

best thing to do - drive fast on the freeway for a while to let them cool - dont use them as hard!!!

Manual

well, then ill keep my fire thinggi for the sake of having it... just in case the engine catches fire :o not that that should happen :evil:

GBM

i have a fire extinguiser on the back of the front passanger footwell. It looks cool and serves a purpose. I got mine on special for 19.95 and came with a nice mounting bracket. Cheapest mod i've done so far...

19.95... hehe.. i got it for like 17.80, its on special plus i have a friend that works there (his discount card) plus my dads shareholder discount :D

GBM Happy :D

Thats cheap... lol

Still thats an extra 3 dollars something towards the car!

Yeah I wouldnt use it on brakes as they are easily put out by driving the car

But on something like an engine fire... which we never know if it could happen it would come in handy :)

Well as my magna is a 2.4 i can't see me driving so hard that my brakes pads will simply ignite.

Im allways a little worried someone is going to rear end me (again) and rupture the fuel tank, only to have my aplifier wiring ignite it up... Not nice. You never know when you might need it...

hate to let you in in a nasty secret but the small extinguishers you are all racing out to buy for your ricer mods!! (no flaming intended in this one!!)

but a full can of that will last approx. 15 seconds at full blast!! it takes a little longer than 15 seconds to extinguish most fires.

i personally feel it is a false sense of security - mind you i have a rated St John's ambo kit in my car - but not a fire extinguisher - the best thing they could be used fr is if someone drops a cigarette into your upholstery and it ignites!! that is about it!!

sorry to break the dissillusionment!! (ooh nice word!!)

Manual

That just killed me :cry:

Oh, the pain :cry:

GBM

I didn't think they would last long... 15 seconds would be enough to extinguish most fires i would imagine... I don't want to find out though... still better than nothing...

15 seconds is more trhan enough for most.

A mate of mine has one and put out 2 seperate engine fires with it without any problems (However it did run out after that) Damn rotors

I think it is well worth having even to put out a small electrical fire in the boot if it arises (Not that it should as everything is fused and I have good wiring).

Well the brakes are on... look sexy aswell :)

Have to let them bed in over the next couple of weeks then I will see how they go up in the hills :)

Turns out the fire I had was a loose bleader nipple on the caliper. My thoughts are that it must have got really bloody hot and the fluid thined out and was squirting onto the rotor.

All fixed up now :)

so when you upped the size of your rotor - was there any modifications required to the caliper or housing?? or was it bolt off bolt on - bigger rotors vouhla

regards
Manual

they arnt much bigger... but slotted. You can see the caliper doesnt cover the whole area on the disk proving they are bigger tho.

Was a straight bolt on... no modification required. Look forward to being able to give it to em... after the bedding in of course :)

Let us know how you go. Start a new thread for this one... can't wait so hear how you find them.

[quote:bebd55f8f6]I've seen my mates calipers on fire, it was quite funny. He was frantically trying to blow them up but they just kept re igniting and torching the paint on his rims... not nice...

But it was bound to happen with the way we were driving down south.

Dude, i drive pretty hard!!! damn hard! but ive never had my calipers catch alight! i tell ya what tho! if i did, id sure catch it on camera :mrgreen:

Muh ha ha ha ha ha!

GBM[/quote:bebd55f8f6]


LOL but you have not seen us drive in the Dandenongs, when you round a corner and the intersection is a haze of brake smoke with Ash sitting in the middle of it you get the idea fairly quick lol

GBM: as a former melbourne boy (moved to NSW 10 yrs ago) i know that the Dandenongs Rd into Ferntree Gully there is quite bad on the brakes. Mine were smoking by the time i got down the last time... ambient temp was low, probably 12 degrees. I run std discs and Bendix Ultimate pads. I'm thinking about paying DBA to make new discs for me in Kangaroo paw style. Either that or scour the wreckers for a Ralliart or AWD that has had a crash - they got the same brakes AFAIK.

Since you are in the NT, take your baby up to 200 clicks, do a hard stop to warm them up nice, then try doing it again. In 40 degree heat. You get my point.

The other Melbourne hill that isn't nice is the Arthurs Seat descent (Liquid Hot will know about this one.... i used to live in Dromana dude....)
My brakes are usually fadey after that.
Next time i am down, we should organise a cruize Liquid Hot. My sister just built her new house @ Baxter - close to you.

And even though I'm 350km away from Sydney, i'm up for cruizes there too. You lot bitching about having to travel across town, I dunno :)

Hahah yeah arthurs seat is another favourite!!! and king lake, black spur...refton spur... mmmmm I can almost see my new rotors starting to shake and shudder as I think about it :P

Yeah let me know if you are thinkin about coming down as we are always up for a fang through the hills down here!!!

Okay here is some info straight from the horses mouth so to say.

Yes we have had problems with DBA rotors - so many problems that RPW will no longer sell there rotors for a Mitsubishi unless its a stock standard vehicle and even then if nothing esle is available.

We only use teh EBC brand of disc pads for performance being the Kevlar series and when they are especially useed with the DBA they warp, crack etc.

Definitly do not go corss drilled - all it does is create cracks in rotors. As someone said the touring cars don't even cross drill anymore.

Instead we used the EBD slotted and dimpled rotors now for maximun performance. Have been running these on our magna now for over 8 months with no warpage and we have used the car at drags etc.

Also RPW is also manafaturing right now larger brake kits for the Mitsubishi vehicles with options on a twin caliper package for the standard disc diameter on th front brakes.

David THomas

While i was searching for rotors (mine are still rooted) I had a good chat with variouse firms and DBA themselves to try and understand why some said they are brillaint and some said they wern't so crash hot.

This lead me to do some research before I decided which rotors we were going to stock here at Aussie Magna. After many hours of searching the net, speaking to people and a very long chat with Steve from DBA (top bloke) i discovered a number of interesting factors.

Many firms use the term warped discs as a scapegoat to put on a new set of rotors. When people say their steering wheel shakes during braking etc the first thing that comes to mind is warped rotors. In fact this is vary rarely the case as apparently only 1 in 30 rotors are actually warped.

What causes this vibration is know as the "grip and slip" phenonum whereby some brake pad material (Kevlar) adhears to the rotor at certain spots which makes parts of the rotor "sticky". When you brake your pads grip on the "sticky" part of the rotor and "slip" on the normal part of the rotor.

DBA Slotted rotors have this problem with only one pad, EBC. DBA rotors work perfectly fine with all other pads including bendix and ferondo etc.

I am still impressed with the quality of DBA products and that is why i am happy to back them under Aussie Magna. Providing they are correctly matched with the right pad, they are absolutly brilliant. I'll be putting some on mine very shortly.

WELL, GBM is a sucess story to the DBA rotors,

Like ive said before, no such problems :mrgreen:
I even run XDrilled ones!!! they look awsome and do a really good job at stopping GBM at a roundabout :oops: i wont go too much into that tho ;)

You've got a digi cam GBM, go out and get us some pics!

I should have a digi cam tommorow :mrgreen: ! Finally

Bout bloody time, my magna friend!!!!

Bout bloody time!!!

[quote:e0840f1336]did you say your car has 400hp? is it a magna [/quote:e0840f1336]

GBM, 380 is closer to the marque - and it's a WRX.

(Puts on flame suit to await the WRX payouts!)

Well I went out for a small run in the hills last night and gave the brakes a bit of a run in and I must say I am impressed

I would say a 50% increase in braking when they get hot.... pulls up very nice. First time I had felt abs in ages. Pull up much better than the stock ones.

I still need to get some photos for yas... mite do it tomorrow... is pissing down with rain atm.

I got quoted $258 for a pair of DBA slotted rotors for a 98 TF magna today, How much do the EBD slotted rotors cost? DBA cross drilled were $179 each at Repco

I got quoted $258 for a pair of DBA slotted rotors for a 98 TF magna today, How much do the EBD slotted rotors cost? DBA cross drilled were $179 each at Repco

not a bad price. i paid round 210 each for mine 'at the time'

so they havnt gone up in price, so thats a good thing :lol:

oh, im talking about the DBA Crossdrilled and slotted disks taht is :D

Anyone got EBS rotors? What pads do you use? Anyone using brake fluid that's not stock?

Contact RPW or Aussie Magna because we do the EBC rotors and pads at a very competitive price to the DBA range with the benefits of the Kevlar pads which would provide superior braking and less brake fade over a normal non kevlar pad.

As well Kevlar pads do not wear rotors as much due to there soft design.

David Thomas
www.rpw.com.au

called up my local mitsu dealer today just for curiosity, they want $203 per rotor

Cool, ta. I'll be heading down that path. Just sucks that there's no RPW affiliated mob over here. Means that when I've sussed out what I need, how it works, why and what benefits I'll see, I go to someone here and all they say is why? Then say do this instead, it's cheaper. Get's up my nose.

Remember RPW and Aussie Magna both ship COD Australia Post australia wide and the freight charges are very reasonable - around $35.00 for a medium sized package.

It normally takes 5 days to deliver a kit COD Australia Post.

Yeah, it's something I'll be looking at. I'll be receiving something from AM in the next month or so.

Saw this old post here at the top,
I have the DBA Slotted rotors, will not use drilled as they do crack.
Mine are badly warped, were after only 6000km. DBA did not want to know about it, just got stupid replies from them like are your wheels tight.
I know they are warped as I haev done run out test. Have to get them machined soon however am just waiting for my pads to wear out lol
I have heard good reports on EBC and will give them a go next time i think.

what kind of warranty do DBA give u on their rotors cause i couldnt find anything on their website. Does anyone know how much those EBC rotors cost?