roscodav Posted October 30, 2003 Share Posted October 30, 2003 After doing a lot of searching I was told that it is near impossble to get aftermarket replacement brake discs for the J spec (standard size). I have however stumbled across a new set that is being released in the next few weeks. They are EBC and are going for about £150 inc VAT for the pair and I believe they are drilled and grooved although no-one is really sure until the first batch are shipped. I have a set on order and will let you know if its worth the money Quote Link to comment Share on other sites More sharing options...
Gaz Walker Posted October 30, 2003 Share Posted October 30, 2003 Yeah, but I dont think EBC brakes are upto the job... Gaz. Quote Link to comment Share on other sites More sharing options...
ChrisR Posted October 30, 2003 Share Posted October 30, 2003 There are a few references in here for Black Diamond aftermarket discs -: http://www.mkivsupra.net/vbb/search.php?s=&action=showresults&searchid=103077&sortby=lastpost&sortorder=descending They are definately available from http://www.fensport.co.uk. Quote Link to comment Share on other sites More sharing options...
SkyJawa Posted October 30, 2003 Share Posted October 30, 2003 EBC are utter rubbish IMHO. Went through 3 sets of their turbogroove disks and greenstuff pads on my scoob. stopped ok, only the disks warped each time on my way home from having them fitted, and I was driving real easy. Then they fitted turbogroove with redstuff and they were the worst brakes I've ever used. Didn't work from cold, and once up to temp, 2 heavy stops and they'd faded - garbage! The supe weighs a lot more than my impreza, EBC haven't got a hope in hell of stopping that IMHO. Quote Link to comment Share on other sites More sharing options...
Wez Posted October 30, 2003 Share Posted October 30, 2003 On a car the weight of a Supra drilled disks are bad idea and could possibly crack easily. Quote Link to comment Share on other sites More sharing options...
Simon Posted October 30, 2003 Share Posted October 30, 2003 Wez, I have to disagree in part with your statement. PROPERLY drilled brakes (that is stress relieved around the drilled holes amongst other things) would not neccessarily be a bad choice. The danger lies in the disks not being made properly to take account of design. I think that CW/others made some technical observations on this a long time ago. It may still be available via a search. Quote Link to comment Share on other sites More sharing options...
SkyJawa Posted October 30, 2003 Share Posted October 30, 2003 As said - AFAIK its completely down to how the disk is made. Porsche use "drilled" discs (the movit stuff) but the discs are not actually drilled, they are cast with the holes in them. The weakness and stress comes from the cheaper disks where they cast the disk and then machine the holes into them, which can cause stress points around those holes. Quote Link to comment Share on other sites More sharing options...
GavinL Posted October 30, 2003 Share Posted October 30, 2003 I think you are missing the point, read this: http://mkiv.com/tmp/pulp_friction/ Quote Link to comment Share on other sites More sharing options...
Willson Posted October 30, 2003 Share Posted October 30, 2003 Nice one Gavin Is that on the tech articles menu ? (not seen it before) Quote Link to comment Share on other sites More sharing options...
GavinL Posted October 30, 2003 Share Posted October 30, 2003 Originally posted by Willson Nice one Gavin Is that on the tech articles menu ? (not seen it before) no its just in the /tmp directory on that server Quote Link to comment Share on other sites More sharing options...
lust2luv Posted October 30, 2003 Share Posted October 30, 2003 Originally posted by GavinL I think you are missing the point, read this: http://mkiv.com/tmp/pulp_friction/ Top article, interesting reading! Quote Link to comment Share on other sites More sharing options...
Patrick_Devlin Posted October 30, 2003 Share Posted October 30, 2003 Yep, thats a top article. Another load of things learnt on this forum. Time to go home and bore the cr*p out of the missus with my new knowledge on brake systems Quote Link to comment Share on other sites More sharing options...
Aerotop Dave Posted October 30, 2003 Share Posted October 30, 2003 Uh oh, Mr Non-Technical lurches into the thread: So if they are impossible to get, what are we meant to do when they need replacing? I'm confused. Quote Link to comment Share on other sites More sharing options...
SimonB Posted October 30, 2003 Share Posted October 30, 2003 I think he meant it's impossible to get non Toyota ones (uprated or whatever). You can get standard ones from Mr Toyota. Quote Link to comment Share on other sites More sharing options...
Scooter Posted October 30, 2003 Share Posted October 30, 2003 i'm pretty sure availability of 'standard' toyota disks is not an issue, just that aftermarket / uprated ones are not readily available, and even if they are, are not necessarily any better........ er yeh like Simon said Quote Link to comment Share on other sites More sharing options...
Dragonball Posted October 31, 2003 Share Posted October 31, 2003 Originally posted by ChrisR There are a few references in here for Black Diamond aftermarket discs -: http://www.mkivsupra.net/vbb/search.php?s=&action=showresults&searchid=103077&sortby=lastpost&sortorder=descending They are definately available from http://www.fensport.co.uk. have had black diamonds crosss drilled / grooved Time to replace soon after 30K!! Done the job very well:thumbs: Quote Link to comment Share on other sites More sharing options...
ChrisR Posted October 31, 2003 Share Posted October 31, 2003 Originally posted by Paul E have had black diamonds crosss drilled / grooved Time to replace soon after 30K!! Done the job very well:thumbs: I think the black diamond are good, i also had the cross drilled on my Celica GT, no problems and braking was very good. They are a bit pricey compared to stock. Just depends how good they are on a Supra i guess. Quote Link to comment Share on other sites More sharing options...
Thorin Posted October 31, 2003 Share Posted October 31, 2003 Can't comment on EBC discs cause I've never used them. Greenstuff pads are really for smaller lighter cars and a mate had them on his Renault Clio and said he prefered the OEM ones. Red stuff's I've had, they were crap from cold, faded like crazy after just a couple of hard stops and I eventually had them on fire before I replaced them. Appalling (or as I recently said on the GTR forum much to Mycroft's protesting, "shite"). I've seen the damage that can happen when a drilled brake disc destroyed itself, on a heavy car like the Supe I would not use drilled discs. Just get standard toyota OEM discs (they are cheap enough to consider disposable) and some good pads (CW or Porterfield). Quote Link to comment Share on other sites More sharing options...
Tony S Posted November 1, 2003 Share Posted November 1, 2003 This is interesting: I need new pads all round for a stock jap setup that is in good condition, and assumed that the Greenstuff was the answer! So - what pads should I get? I will be looking at big disks later, but for now I would apreciate advice to keep it all going sweetly! T Quote Link to comment Share on other sites More sharing options...
SkyJawa Posted November 1, 2003 Share Posted November 1, 2003 Tony, Avoid EBC like the plague! The CW (Chris Wilson on this BBS) Fast Road or Race spec pads are very highly regarded, as are the porterfield (????) pads. Failing that - UK brake calliper upgrade HTH - cheers! Quote Link to comment Share on other sites More sharing options...
Nick Posted November 1, 2003 Share Posted November 1, 2003 Even with the CW fast road pads and Castrol SRF fluid I find the jap brakes completely inadequate, brake fade comes in fast. Waiting on my new front wheels so I can make a much needed upgrade... UK brakes and CW pads are the way to go on a budget, AP/Brembo if you have the cash. I had black diamond on my old Escort RS turbo, shite IMO. Quote Link to comment Share on other sites More sharing options...
Terminator Posted November 1, 2003 Share Posted November 1, 2003 There is a list of top brakes on here somewhere but can't find the link. The UK's are up there with standard pads, from what I remember the only standard system above the MKIV was the Porka GT1. With better pads the the UK's were up with the best Brembo/Ap have to offer. UK's are a quality options at a very good price. If you want to be able to stop the car the UK's will do the job very well. Quote Link to comment Share on other sites More sharing options...
roscodav Posted November 1, 2003 Author Share Posted November 1, 2003 Thanks for this, I have learnt a lot and yes my reference was to the lack of options for upgrade discs of J-spec size. Last time I spoke to Toyota they were able to get standard replacement discs with no problems. (about a week wait) Quote Link to comment Share on other sites More sharing options...
Tony S Posted November 2, 2003 Share Posted November 2, 2003 Originally posted by HISUPE Tony, Avoid EBC like the plague! The CW (Chris Wilson on this BBS) Fast Road or Race spec pads are very highly regarded, as are the porterfield (????) pads. Failing that - UK brake calliper upgrade HTH - cheers! Quote Link to comment Share on other sites More sharing options...
Tony S Posted November 3, 2003 Share Posted November 3, 2003 OK, so where do i get UK brakes please? from Toyota - is it as simple as that? what parts do i need other than the obvious disks and calipers? Quote Link to comment Share on other sites More sharing options...
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