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mattgreen
19-02-2010, 12:12 PM
Hey guys, im been looking through the forum for a while but id like to hear some answers from some people that have done it or no how to do it.

what im thinking of doing is a twin pot upgrade. i have heard of people putting the vt commodore twin pot calipers onto their cars. is this possible with a magna? what would need to be changed? whats the cheapest way to get some decent brakes (hopefully under $500)

will i need to do the rear brakes to or can i get away with leaveing them stock? whats everyones opinions on this.
i have also been trying to find some awd front calipers and i was going to put brand new dba slotted rotors on them? is this a good idea?

after an incident 15 minutes ago i have decided that new brakes are a MUST!

Dave
19-02-2010, 12:25 PM
Mate no offence but use the search button. This gets covered a lot.

Dave
19-02-2010, 12:28 PM
Hey another thing, any brakes will stop you dead in an emergency so you won't gain extra safety by fitting different ones. Look at new pads, fluids and rotor condition of your current ones before upgrading.

Life
19-02-2010, 12:29 PM
Your options are:

AWD/Ralliart/Evo 4 Twin Pots
380
PBR's
Evo Brembos (4-pot)
or TMR 380 (6-pot)

That was ordered from least to most cost, the TMR brakes will prob set you back 12-20k :P

Do a search, theres plenty on them.

mattgreen
19-02-2010, 12:36 PM
price on AWD/Ralliart/Evo 4 Twin Pots will i need rear brakes? or leave them stock. im thinking of doing this due to mine need new rotors anyway

will slotted rotors on my current setup with bendix premiums be sufficent?

alscall
19-02-2010, 12:45 PM
Go the AWD or 380 brakes.

Cheapest option & more than enough to stop your car. The fronts will bolt on - AWD rears need a spacer, 380 ones don't fit, AFAIK. Slotted with Endless Green or QFM pads would be a good choice. Some like Bendix Ultimates, also.

mattgreen
19-02-2010, 12:49 PM
sounds good i put tj cailipers with bendix ulimates on around 6 months ago. but there not very good. (only because the te ones were seized)
i was thinking to just either get the awd or 380 fronts. combined with slotted rotors on the front and keep the rears stock cailipers but put slotted rottors on it to (for looks) and some decent bendix rear pads because at the moment it has 10$ ones on the rear

Monster Inc
19-02-2010, 12:51 PM
Go the AWD or 380 brakes.

Cheapest option & more than enough to stop your car. The fronts will bolt on - AWD rears need a spacer, 380 ones don't fit, AFAIK. Slotted with Endless Green or QFM pads would be a good choice. Some like Bendix Ultimates, also.

AWD rear calipers work with Ralliart rear rotors - no spacers req'd. Genuine Ralliart rear rotors are Japanese = Big $ . Not sure if DBA ever ended up manufacturing these locally...

mattgreen
19-02-2010, 12:52 PM
will it be ok to leave the rear cailipers stock? or will it be notisbly worse?

Monster Inc
19-02-2010, 12:57 PM
will it be ok to leave the rear cailipers stock? or will it be notisbly worse?

I think a lot of people have done this without issue. - You are biasing the front brakes more though.

mattgreen
19-02-2010, 01:00 PM
what do you mean exactly by biasing?

Dave
19-02-2010, 01:04 PM
Fronts do about 95% of braking so rears are mainly for wank factor on a street car

Monster Inc
19-02-2010, 01:07 PM
what do you mean exactly by biasing?

MMAL in their wisdom decided that a safe and economical brake solution for the magna was single pot 274mm front 260mm rear combination. If you inject steriods into the front you end up with twin pot 294mm front and single pot 260mm rears. Thus you braking capability is now no longer proportional to MMAL design. I don't know what the consequence of this is but I choose to upgrade the rear to the Ralliart single pot 284mm.

Monster Inc
19-02-2010, 01:09 PM
Fronts do about 95% of braking so rears are mainly for wank factor on a street car

Still not much wank fodder with magna Ralliart spec brakes inside 18inch rims. :) They still look way too small.

Ezz
19-02-2010, 01:22 PM
Matt, I've got the Stock Ralliart Twin Caliper brakes with Bendix Ultimates front and rear. STOP'S ME LIKE A ROCK and I've got roughly 154Kw @tw.
Trust me... it's the cheaper option.
With the power that your car is putting out you will have 'NO PROBLEM'!

Neo
19-02-2010, 01:26 PM
Fronts do about 95% of braking so rears are mainly for wank factor on a street car

Correct.

I did a little bit of research in to this and soon after purchased 380 front brakes for $400. Including rotors, pads, and calipers. Very good inprovement, very good price aswell!

86_Elite
19-02-2010, 01:29 PM
I run the 380 brakes on mine with stock TE rears and don't have a problem at all although I would like to upgrade the rears in time as I noticed that it is a bit more front biased but not un-drivable, has great stopping power!

mattgreen
19-02-2010, 01:30 PM
sounds good ill be looking for some twin pot fronts. i mainly want the slotted rotors for the wank factor and because my rims are realy airy you see alot of disc

robceline
19-02-2010, 01:34 PM
slots dont seem to do a lot from my experiance but do look good
i was going to upgrade my fronts too but unless im going to engine mods wont really need them untill then

mattgreen
19-02-2010, 01:38 PM
been calling numerouse wreckers its hard to find some decent 380 or tj calipers.

lowrider
19-02-2010, 02:14 PM
MMAL in their wisdom decided that a safe and economical brake solution for the magna was single pot 274mm front 260mm rear combination. If you inject steriods into the front you end up with twin pot 294mm front and single pot 260mm rears. Thus you braking capability is now no longer proportional to MMAL design. I don't know what the consequence of this is but I choose to upgrade the rear to the Ralliart single pot 284mm.

placing larger disks and calipers shouldn't effect your braking bias, as the bias is determined by the fluid pressure ratio front/rear, this is done by the distribution block, the advantage of larger brakes is that especially on spirited drives and track days, the larger disks and pad area, dont get as hot as fast and therfore you get less brake fade. if larger brakes VS stock brakes (both in perfect working condition and are able to lock up the tyres if needed) the stopping power is limited to the amount of grip your tyres have on the road.
oh by the way anyone feel free to disagree with me here, ive studied physics/statics with friction coefficients, so this is the way i see it
cheers
-Brent

edit: when buying evo 4/awd/ralliart brakes, make sure the calipers are in good working order and the rotor thickness is still good,.
standard value is 24mm and the minimum is 22.4mm

gtrtwinturbo
19-02-2010, 03:29 PM
the way i was taught (could be wrong) was that if u upgraded ure front brakes u had to upgrade rear to keep them in proportion. Or is that only the way with drums to disks rear upgrade???? cause arent u keeping the same pressure on a larger area = more force??? or have i screwed up the formula???

Madmagna
19-02-2010, 04:18 PM
Ok, where to start

To begin with Evo4 will not go on a third gen, the Evo 5 onwards had non brembo set ups as well, these will fit, I also believe Pajero will also fit but are hard to get. 380 or AWD will be best off

Secondly, you do not need to do the rears, on my wagon I have awd on the fronts and std on the rears as the wagon is a little more involved when it comes to rotor fitment. I will not use spacers of any kind on wheels and as such will just put up with the std ones which to be honest even when I am towing my boat have never been an issue

I noticed a comment by the OP that something 15 mins ago convinced you to get bigger brakes. You seem to fail here in the fact that if your brakes would not pull you up you have either one or more of 3 issues
1, you were driving too fast for the situation
2, no matter what your brakes were, the situation presented to you (car pulling out etc) was not avoidable and remember no matter what brakes you have, the tyres will only pull up a car so fast before they too skid
3, you do have issues with your brakes and should stop driving that car until fixed

Remember that when Mits made these cars, they were tested to death over many years (KR, KS and V6 TR/S had same brakes) and I can say that I have never had a good set of std brakes fail to do what they need to do. I have done much "spirited" driving in the twisties on many occasions and never had brake fade

As for crummydoor brakes, if you want to downgrade then these are a good option, I would not use them given the huge range of factory brakes you have available and most of them do not need to engineer them as they are bolt on and often even came out on a range of our cars

maggie3.5
19-02-2010, 04:29 PM
This is the way too go if you want upgraded brakes.......380 Fronts

IMO they would be a better choice as they should be becoming a bit more available.

I have done the Ralliart rear brake change as well,but for what it is worth...this set up is awesome.

http://i184.photobucket.com/albums/x112/micpea/STEALTH%20380%20GT/Image0279.jpg

http://i184.photobucket.com/albums/x112/micpea/STEALTH%20380%20GT/Image0283.jpg

http://i184.photobucket.com/albums/x112/micpea/STEALTH%20380%20GT/Image0282.jpg

SupremeMoFo
19-02-2010, 04:39 PM
380 fronts... do it.

http://i2.photobucket.com/albums/y32/emarkby/car/IMGP0326.jpg

Andrei1984
19-02-2010, 04:42 PM
Hey, sorry just to be clear i need spacers if i want to fir rear AWD brakes with AWD rotors?? Which ones do i need & where to get them?I have a set ready to be fitted i just want to make sure i have everything before i take the wheels of.

SupremeMoFo
19-02-2010, 04:44 PM
3.7mm spacers, Hoppers Stoppers in Victoria will know exactly what you need, they had a set lying around when I rang them to get some Evo 4 rear brake pads back in November.

Andrei1984
19-02-2010, 05:22 PM
Wait a minute cant i just get rear ralliart rotors?

maggie3.5
19-02-2010, 05:25 PM
Wait a minute cant i just get rear ralliart rotors?

if you can find them,this is what happened to me,got a set of rotors from a member,supossed to be AWD,but,didnt fit with the spacers i had wtf....so i measured the hat size,and ,yep,i had Ralliart rear rotors,

so yes get some ralliart rotors and away you go....

mattgreen
19-02-2010, 05:33 PM
howmuch should 380 front brakes and disks cost? just so i no roughly

SupremeMoFo
19-02-2010, 05:36 PM
$440 from Imlachs in Melbourne to my old door in Adelaide for calipers, rotors and new pads. SPELL OUT TO THE WRECKER YOU NEED THE RUBBER BRAKE LINES INTACT.

mattgreen
19-02-2010, 05:43 PM
$440 from Imlachs in Melbourne to my old door in Adelaide for calipers, rotors and new pads. SPELL OUT TO THE WRECKER YOU NEED THE RUBBER BRAKE LINES INTACT.

cant i use the brake lines from the old ones?

SupremeMoFo
19-02-2010, 06:00 PM
Don't think so.

Articuno
19-02-2010, 06:09 PM
I paid $300 for the full 380 front setup back when they were first found to bolt up to a magna.

Rhino
19-02-2010, 06:09 PM
+1 fot the 380 fronts. Scored mine for 300 with a vrx cluster. I adjusted my rod at back of master cylinder / booster so my pedal is rock hard.

TJTime
19-02-2010, 07:58 PM
Ok, where to start

To begin with Evo4 will not go on a third gen, the Evo 5 onwards had non brembo set ups as well, these will fit, I also believe Pajero will also fit but are hard to get. 380 or AWD will be best off



Dude, Evo 4 Calipers will fit. Everybody else has had them fitted up already

http://www.aussiemagna.com/forums/showthread.php?t=72633&

TJTime
19-02-2010, 08:05 PM
Dude, Evo 4 Calipers will fit. Everybody else has had them fitted up already

http://www.aussiemagna.com/forums/showthread.php?t=72633&

AND down to Poita...

http://www.aussiemagna.com/forums/showthread.php?t=52231&highlight=EVO&page=5

mattgreen
19-02-2010, 10:18 PM
300 is that includeing discs sounds reasonable!

robssei
20-02-2010, 09:28 AM
Im thinking of using the twin pot fronts off the AWD jap spec diamantes, just got to measure things up as they use the multilink front as opposed to the Macpherson strut on Aussie made cars. Oh wondering about the twin pots that came on some second gens, are they compatable with 3rd gens?

lowrider
20-02-2010, 09:49 AM
No 2nd gen calipers are not compatible with 3rd gen

Madmagna
20-02-2010, 02:27 PM
Dude, Evo 4 Calipers will fit. Everybody else has had them fitted up already

http://www.aussiemagna.com/forums/showthread.php?t=72633&

My bad, was thinking the earlier ones as many have brought them to fit the thrid gens and found they only fit seconds

BTW, you can fit multiple quotes into one post... :)

Now. looking at the rotor size, the EVO 4.5.6 had 276mm rotors, so you are in effect getting very little upgrade at all, some of the evo 4 had the 294mm rotor the same as the AWD rotor and these would be the ones to get your hands on. When I stated above about the Evo4 I was thinking of the smaller braked models I guess