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Location:
NSW, East Coast
Registered:
July 2003
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Group buy! dba ae86 rotors
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Tue, 09 March 2004 13:08
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Im pretty keen on upgrading my ae86 brakes without going thru the drama's of strut changes and other bits a pieces.
I have know idea of whats available but ill find out!
So im looking for people with the same thoughts.
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Location:
Gawler, SA
Registered:
August 2003
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Re: Group buy! dba ae86 rotors
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Tue, 09 March 2004 13:21
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To replace japspec or ozspec rotors? Calipers are *apparently* different after all.
Got an estimate in price?
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Location:
NSW, East Coast
Registered:
July 2003
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Location:
Gawler, SA
Registered:
August 2003
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Re: Group buy! dba ae86 rotors
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Tue, 09 March 2004 13:54
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According to the rotors on mine now (and the manual I have) it says the normal thickness is 12.5mm with a minimum of 11.5mm. The dba catalogue shows this is true and only offer a solid replacement rotor which isnt much of an upgrade.
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Location:
northern beaches
Registered:
August 2002
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Re: Group buy! dba ae86 rotors
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Wed, 10 March 2004 07:25
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could be interested if its a bolt on/off proposition!
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Location:
Gawler, SA
Registered:
August 2003
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Re: Group buy! dba ae86 rotors
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Wed, 10 March 2004 07:34
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It would be a direct swap over but japspec calipers might be easier as for ozspec it says they only offer standard rotors. A pair of Longlife gold rotors would be nice, but they dont offer them as a replacement for the ozspec ones. (according to the catalogue anyway) And custom would be big $$$$
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Location:
Brisvegas
Registered:
June 2003
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Re: Group buy! dba ae86 rotors
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Thu, 11 March 2004 03:02
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quick question...i picked up a set of protex vented ae86 rotors the other day...17mm thick with 13mm min. (I wouldnt mind upgrading the T series rears also)
i'm under the impression the aus spec caliper can be used with the only issue being the fact that you might need to shave a little off new brake pads to make them fit. I havent had my car for a while now so i havent been able to double check but does this sound right to you guys???
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Longlife gold rotors would be nice
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aren't they cross drilled? ie:not good for street use
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Location:
Gawler, SA
Registered:
August 2003
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Re: Group buy! dba ae86 rotors
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Thu, 11 March 2004 03:10
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Well I have japspec rotors and they are supposed to be 17mm min but its down to 15mm. Despite being slightly too small they still wont fit in properly as the solid rotors are like 12.5mm normal.
| NickAE86 wrote on Thu, 11 March 2004 13:32 |
aren't they cross drilled? ie:not good for street use
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They are, whats so bad about that exactly? The site says they are designed for street use only.
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I supported Toymods
Location:
Perth, WA
Registered:
May 2003
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Re: Group buy! dba ae86 rotors
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Thu, 11 March 2004 03:19
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Cross drilled rotors are prone to cracking
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Location:
Gawler, SA
Registered:
August 2003
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Re: Group buy! dba ae86 rotors
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Thu, 11 March 2004 03:27
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Yeh I read about that but this is what the site clearly states.
The weakest or most crack-prone part of the rotor is the outer edge, which in the normal course of expanding and contracting with heat, endures more movement than the centre of the disc, which is obviously smaller and is reinforced by the central hub or "hat". This is why DBA Longlife Gold road discs do not follow the practice of some racing rotors which have holes right at the outer edge or run slots off the edge of the disc.
Reports from a few owners confirm the occasional appearance of very small cracks around the holes. These were expected; they are caused by localised stresses and in no way detract from the reliability, durability or "stop-ability" of the disc. Some rotors have been returned with more serious structural cracking; however the number equates to a ratio of just 18 rotors in every 10,000 shipped.
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Location:
Brisvegas
Registered:
June 2003
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Re: Group buy! dba ae86 rotors
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Thu, 11 March 2004 03:51
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Despite being slightly too small they still wont fit in properly as the solid rotors are like 12.5mm normal.
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what exactly do you mean, diameter shouldn't change...the caliper wont fit properly?
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They are, whats so bad about that exactly? The site says they are designed for street use only
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exactly what ae95 said...due to the multiple heat cycles you endure on the street they simply arent as effective as slotted/vented rotors & are prone to cracking. But then again its whatever you prefer & how hard you brake 
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Location:
Gawler, SA
Registered:
August 2003
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Location:
Brisvegas
Registered:
June 2003
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Re: Group buy! dba ae86 rotors
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Thu, 11 March 2004 04:17
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ahh thats what i thought...i was told you could just shave your brake pads down a bit...yes you would go through them quicker but it'd help with the 24/7 braking prob  i'll soon find out
the dba catalogue shows you can get longlife slotted for ae86. a little tick in a box marked 's' indicates this...well, thats my interpretation anyway
but back on topic...FKN16V: are you looking at rotors for front & rear? how much do you think you can get them for? have you settled on aus spec or jdm?
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Location:
melbourne
Registered:
August 2003
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Re: Group buy! dba ae86 rotors
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Thu, 11 March 2004 23:58
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what's the best caliper you can bolt to an ae86 strut, ie:ra40,60etc. let organise a group buy through a wrecker for a whole bunch of these and then organise coustom big ass rotors from dba for all of us, there we go, instant bolt on upgrade.
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Location:
Redbank Plains,near Ipswi...
Registered:
May 2002
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Re: Group buy! dba ae86 rotors
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Fri, 12 March 2004 00:45
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guys, you can't fit a vented rotor onto an oz spec system designed for solid discs. shaving the pads is asking for troubles. we hate even doing this on race cars. there is no simple vented cvonversion that I know of and i dont know of a "bolt-on" caliper as the hole spacing is mongrel (to say the least). its not even stanrdard within toyota. we have made a few big brake kits for these cars, and they are not cheap. I can access good prices on DBA thru my trade account, but this in not the answer here. you can get a slotted solid disc, but better pads are what you want. we have successfully used bendix ultimates on road/sprint cars
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Location:
NSW, East Coast
Registered:
July 2003
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Location:
Tasmania
Registered:
May 2002
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Re: Group buy! dba ae86 rotors
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Fri, 12 March 2004 01:57
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Getting DBA brake rotors for your car is not a upgrade. You would do it simply to replace a worn out part (the disk). If the disk is worn thin, you get a new one. And it makes no difference if it is DBA brand or any other brand. If the new disk is slotted, maybe that would increase braking very slightly on a race track with lots of hard driving, but wear the pads quicker also.
Easiest to get higher temp brake pads, like the other guy said, if you are goiing to be driving hard.
For upgrade brakes, find the GT-Apex JDM vented brakes, or adapt a similar brake like on RA60 Celica, YR20 Tarago, MA61 supra etc.
Or do the HiLux 4spot thing with Corona struts.
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Location:
Blue mtns
Registered:
November 2003
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Re: Group buy! dba ae86 rotors
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Sat, 13 March 2004 13:19
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hey guys,
i work for repco, and it is confirmed that DBA do slotted rotors for the AE86's, but they are simply solid. you can't get vented rotors for the aus spec models.
but...
you might want to check out this website which is a japanese tuning place in japan, aichi prefecture or something (wherever the hell that is...)
www4.plala.or.jp/rs-kato/
(that "4" there isn't a mistake, it's supposed to be there)
anyway, if you use babel fish to translate, and head into the suspension part of the site, you'll see that they sell slotted AND vented rotors for the AE86. obviously it's the jap spec one, so finding some jap spec calipers or something to fit these rotors would help.
only problem is, they don't give any details as to the rotors specs... just a $100 price tag per rotor.
and you'd need someone in japan to get them for you. i'd offer to get them for everyone, but i ain't going over there again for a while.
they also happen to sell adapters and intake manifolds to give your 16V quad throttles!!
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Location:
NSW, East Coast
Registered:
July 2003
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Re: Group buy! dba ae86 rotors
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Tue, 16 March 2004 03:27
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This is what DBA said.
G,Morning Steve,
The upgrade you are looking for is a little hard to do as you can
appreciate to put a vented disc rotor in where a solid one comes from
requires a caliper change to accept the extra thickness of the vented rotor
the std disc being 12.5mm thick and an acceptable vented rotor being 25mm
thick,thats double the thickness,
We at Specialised brake and Clutch have done this model of vechile before
with a 315mm disc and also a 328mm disc with an aftermarket caliper,the
only draw back is rim size ,they require 16 + 17 inch wheels pending on
which kit you want to use,We would suggest to talk to the other interested
parties and see what meets your requirements and then we will quote on the
qtys of which kits you require.
All kits utilise DBA disc rotors vented and slotted with a pbr twin piston
caliper similar to the Group A commodore and come complete with hoses
(optional braided),pads and mounting hardware
Hope this has helped
Regards
Kevin Gavin
82 Glossop st
St Marys
02-9623-8070
Im over it, ill store it in the back of my head till im up too the challenge.
Sorry for wasting everybodies time, i was thinking out loud at the time.
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Location:
Gawler, SA
Registered:
August 2003
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Re: Group buy! dba ae86 rotors
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Tue, 16 March 2004 11:11
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Hrm 16" or 17" wheels, dont see that being too many parties here. Wouldnt go above 15" on a sprinter so its a little big :/
Meh probably cost big $$
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Location:
NSW, East Coast
Registered:
July 2003
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Re: Group buy! dba ae86 rotors
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Tue, 16 March 2004 11:23
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Thats why i decided to give them a miss.
I still have a few ideas thou.
But ive got a funny feeling that the article by Michael Seymour is about the easiest option.
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). The japspec one reads 17mm min on them but they are down to 15mm thickness so they legally cant be fitted. Since I am using the aus spec calipers (which usually take 12.5mm rotors) there is no space between the calipers and the japspec rotor surface, so its like driving around with the brakes on 24/7.
