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post #1 of 11 (permalink) Old 04-28-2004, 08:21 AM Thread Starter
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Available Now !!! ... DBA Brake Rotors .. 3 types

Hi Guys,

Good new for those wanting to do some minor brake upgrades.

DBA .. Australia biggest brake rotor manufacturer (Disc Brakes Australia) have just released 3 versions of front and 2 versions of rear rotors to suit the Mazda 6.

Front: ... DBA Number - 2950 (Ventilated)
1. Standard
2. Standard Slotted
3. Standard Gold .. (cross drilled and slotted)


Rear: ... DBA Number - 2951 (Solid)
1. Standard
2. Standard Slotted


Here is the website link:

http://www.dba.com.au/dba_catalogue_2004/H...f/Out/Mazda.pdf


I hope this helps all members and could someone do a little telephoning around and provide the rest of us with individual prices of the above and a retail supplier in Sydney.

Warren
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post #2 of 11 (permalink) Old 04-28-2004, 09:14 AM
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Reading Topic: Available Now !!! ... DBA Brake Rotors .. 3 types

sweeet
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post #3 of 11 (permalink) Old 04-28-2004, 10:23 AM
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Reading Topic: Available Now !!! ... DBA Brake Rotors .. 3 types

ill do that for ya mate, hopefully tommorrow

im very keen on a brake upgrade, but mazdas got such a nice setup stock, although the upgrade would obviously quicken stopping etc would it change the way the braking feels and responds?

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post #4 of 11 (permalink) Old 04-28-2004, 07:01 PM Thread Starter
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Reading Topic: Available Now !!! ... DBA Brake Rotors .. 3 types

Hi Guys,

Thanks to those who are willing to help me out with finding additional information in this area.

I fully agree with most owners, the basic Mazda 6 brake setup is a good system, and for most owners it performs extremely well for everyday driving. For those of us who "really push" our M6's along on twisty roads or have the ocassional track day, there are some short coming to be found.

As Phil (Sixthsense) will testify ( I hope your heart rate has returned to normal) when I took him for a private 20 minute drive during our club meet in the Royal National Park, that the Mazda 6 can out handle / brake most cars I can think of in low to medium speed road conditions ... we blasted past a modified WRX who gave up in the end when he couldn't get us off of his bumper after a few kilometres of high speed twists and turns ... do you remember the look of shock on his face Phil.

Anyway, after we returned from 20 minutes of hard driving, the brakes were "cooked' ... the brake pads were smelling pretty bad and the tyres were just as hot to the touch (sorry to those who were having lunch a few feet from my car).

In these conditions some modifications are required otherwise brake fade can be a really problem. This is where the DBA Slotted and or Slotted and Cross Drilled rotors can provide additional help.

For those not "in the know" as brake pads get really HOT they emit a gas, which is a by-product of the friction on the pad material. This gas can get trapped between your pads and the disc rotor and your braking coefficient drops at an alarming rate. (Its a similar scenerio as your tyres aquaplanning on large amounts of standing water - you try and channel the water away) its the same with these gases, slots and cross-drilling removes the gases and used pad material allowing the pads better grip on the rotor ... it has nothing to do with water removal from the rotors.

Now what your looking for in aftermarket rotors (besides those looking for a cosmetic look only) are two things.

1. Actual rotor disc to be thicker and made of the best materials available.
Initially, rotor thickness is the better option than an increase in rotor diameter as they can handle more heat than thinner rotors. Large diameter rotors give greater leverage. Its a balance between both of these options.

2. The rotor carrier (hub) to be strong (some are bolt-on alloy items), yet as light as possible, to reduce unsprung weight, which will improve your suspension loading (less inertial weight of moving parts ... the better the suspension can cope).

So there are some great reasons to purchase the rotors, and yes I do like the cosmetic looks as much as anyone else.
.................................................. .............................................

My "suggested" path to brake modifications follow this logical sequence (money spent vs performance gained).
.................................................. .............................................

1. CHANGE BRAKE FLUID ...
I use Castrol "Response" Super DOT 4.
You'll need 3 x 500ml bottles to flush and replace the standard brake fluid.

Castrol Response Super Dot 4
Superior performance brake fluid recommended for use in all cars and light commercial vehicles that require either a DOT 3 or DOT 4 product and operate at higher temperatures or under increased loads. Suitable for both disc and drum brakes, including modern vehicles fitted with ABS systems.
HN1796, SAE J1703, JIS K2233, ISO 4925, AS/NZS 1960.1 Grade 3.

(This fluid has a higher boiling point that the standard, as well as not absorbing as much water over time as the standard fluid keeps corrision out of your braking system)

Technical Details and Comparisions:
http://www.castrol.com.au/products/pdf/Res...r%20DOT%204.pdf

COST: .. $25.00
.................................................. ......................................

2. REPLACE BRAKE LINES ...
I use 4 x Earls Stainless Steel Braided Teflon Brake Lines.
(Standard rubber brake hoses flex and reduce the actual brake pressure that reaches your calipers)

NOTE. Use of Stainless-braided hose and re-usable hose ends for Brake Hoses on street-registered vehicles complying with Australian design Rule 7 is illegal.


Earls Website:
http://members.ozemail.com.au/~earls/hoses.htm

Braided Brake Line Picture:
http://members.ozemail.com.au/~earls/earls42.jpg

Hose End Fittings Picture:
http://members.ozemail.com.au/~earls/hose_end.htm

COST: ... $280.00 - $340.00
.................................................. .............................................

3. CHANGE BRAKE PADS ...
We are still waiting for a manufacturer to bring out some semi-metallic performance pads to Australia. I have previously used EBC and Bendix Perfomance Pads to great effect in other vehicles.

(Just remember, the higher the metallic ratio is in your brake pad compound, the greater your disc rotor wear will be)


Bendix Brake Pads Selection Guide:
http://www.bendix.com.au/media/files/PadSelection.pdf

Email Reply:
We only make pads for the front of the Mazda 6. Part number DB1484.
Bendix Performax would be ideal for yor car.



EBC Brake Pad Selection Guide:
http://www.ebcbrakes.com/

Go to the EBC Catolgue - Mazda 6 2.3 litre (Page 114)

EBC Front Standard: .. Part Number: - DP1465
EBC Front Performance: ... Part Number: - DP21465
EBC Rear Standard: ... Part Number: - DP1222

(There are no rear performance pads for raesons I mentioned above)


COST: ... approx $320.00 - $520.00 (4 pairs - full set)
.................................................. ..........................................


4. CHANGE BRAKE ROTORS
As 75-80% of your braking is done by just the front brakes, an upgrade of the front rotors, may be all that is needed by some people to balance cost and performance.

DBA Mazda Catalogue:
http://www.dba.com.au/dba_catalogue_2004/H...f/Out/Mazda.pdf

Front: ... DBA Part Number - 2950 (Ventilated Disc))
1. Standard Longlife = $118.20 each
2. Slotted Longlife = $250.00 each
3. Gold Longlife .. (cross drilled and slotted)

Rear: ... DBA Part Number - 2951 (Solid Disc)
1. Standard Longlife
2. Slotted Longlife



DBA Passeger Vehicle Rotor Pictures:
http://www.dba.com.au/rotors_passenger.asp

DBA Standard Longlife Rotor Description:
http://www.dba.com.au/rotors_longlife.asp

DBA Slotted Longlife Rotor Description:
http://www.dba.com.au/rotors_slotted.asp

DBA Gold Longlife (Slotted and Drilled) Rotor Description:
http://www.dba.com.au/rotors_gold.asp



EBC European Brake Disc and Drum Catalogue
http://www.ebcbrakes.com/

EBC Front Rotor: ..Part Number: - D1196 (Ventilated 283 mm diameter)
EBC Rear Rotor: .. Part Number: - D1197 (Ventilated 280mm diameter)

(The standard Mazda 6 rear rotor is solid, so having a EBC rear ventilated rotor would be a great upgrade)


COST: ... approx $1,000 - $1,500 (Set of 4) ?????
.................................................. .............................................

5. CHANGE BRAKE CALIPERS / MASTER CYLINDERS
Seriously guys ... for street applications this last option doesn't give you a good balance of performance for your dollar.

For "track work" of course this is a mandatory fit.

Mono-block (1 piece non-flexing design), multi piston calipers (up to 6-8 multi-ratio pistons per caliper), floating rotors (the rotor has laterial movement on the hub)and radial mounted calipers make a huge difference.

COST: ... up to $1,500 - $2,000 per caliper

.................................................. ...........................................
There you have it guys, I hope I have shed a little light on the topic, and given you some idea's as to what level of brake upgrades you need.

Warren
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post #5 of 11 (permalink) Old 04-28-2004, 09:16 PM
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Reading Topic: Available Now !!! ... DBA Brake Rotors .. 3 types

Warren, can you please explain me more about changing brake pads?
I've read several threads that changing bigger pads would not do any good to the car because it prolongs the breaking distance. Is this true?

Thanks Warren

Yans
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post #6 of 11 (permalink) Old 04-29-2004, 12:45 AM Thread Starter
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Reading Topic: Available Now !!! ... DBA Brake Rotors .. 3 types

Hi Yans,

Sorry but I don't fully understand what your asking.

You can't install larger (longer or wider or thicker) pads than the original caliper is designed for.

You can upgrade the compound (material type) to various levels, organic, semi-metalic, full metallic, carbon and the list goes on.

Just get back to me and give me a topic link to what you have read or just some more details, as I'm a little bit unsure of what you were asking.

Warren
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post #7 of 11 (permalink) Old 04-29-2004, 01:35 AM
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Reading Topic: Available Now !!! ... DBA Brake Rotors .. 3 types

hey guys, somethings wrong with the website so my post disappeared.

Anyway, basically i contacted DBA, they couldnt tell me much and suggested calling Super Cheap or Repco.

I called repco and he said they havent stocked any, but sold a 4000 series slotted yesterday for $250 each. He suggested calling DBA cause if he was to find out the prices of the rest thats who hed call, i told him ive already done that.

Next i called Super Cheap, they too didnt stock any, theyre ordering them in, he said he'd call me back with the prices. He called me back and said he's only got the price for the standard front $118.20

So, so far:

Front (ventilated)

Standard = $118.20 each

Slotted = $250 each

Cross, slotted = ?

i think prices will be easier to get in one or two weeks time when theyve stocked and maybe sold a few. Ill try and drop in to super cheap villawood where a mate works and see if he can help me more than his mates did on the phone :D

wish i could of got more info guys :(

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post #8 of 11 (permalink) Old 04-29-2004, 07:17 AM Thread Starter
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Reading Topic: Available Now !!! ... DBA Brake Rotors .. 3 types

Hi stevesteve,

We all appreciate your help in finding out what information you have on the DBA brake rotors.

Warren
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post #9 of 11 (permalink) Old 04-29-2004, 11:15 AM
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Reading Topic: Available Now !!! ... DBA Brake Rotors .. 3 types

[quote]

Guys, Warren was able to show me that, we all have our hands on one very very capable car. This guy was in an STI, read STI WRX, and he had nothing on Warrens mazda6. On the straights yeh sure he could compete, but mate round those corners, Warren was the one who had to put those brakes too good use in order to avoid his rear bumper! He had no idea what hit him when he had to give way to us, I wonder whether he cried himself to sleep that night?!
I mean, honestly how does one get a car at speeds I thought were fast on highways, around tight little 2 way lanes, like a tram on tracks?!

The brakes definitly smelt good afterwards Warren, do the brakes happen to get very spongy at all?

current mods : racing pin stripes for stationary fast look/painted brembo sign on calipers for extra braking power/hole punched stock exhaust system to make louder/coloured cellophane for coloured lighting look.
mods to come : CF vinyl to lower the weight of car/automated pre-recorded sound of opening coke can for BOV sound/extra high and large cardboard GT wing for superior downforce and cornering ability/4x25kg rice bags in boot and cabin to lower car 1.5 inch/axela/sp23/MPS6/atenza badging
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post #10 of 11 (permalink) Old 04-29-2004, 08:46 PM Thread Starter
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Reading Topic: Available Now !!! ... DBA Brake Rotors .. 3 types

Hi Guys,

Need some more help from anyone with spare time.

Have a look at my 2nd entry in this topic and you'll find I've been hard at work in getting part numbers for numerous brake components that are made for the Mazda 6.

You'll also find the relevant website links with plebnty of pictures.

What we need now are prices and retailer outlets.

Warren
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