Steve W Posted March 30, 2006 Share Posted March 30, 2006 YES i KNOW it's asking the same old question, just didn't find a definitive answer in the other threads ! UK size front disc's (sorry, ROTORS !) Makes ? Toyota, 3G DBA ? ? ? ? ? Prices ??? Is the consensus that the Toyota disc's are relatively easy to warp ? Which of the others DEFINITELY DON'T WARP ! ! ?? [Any downsides to the 'other' make disc's ???] Thanks, Steve. Quote Link to comment Share on other sites More sharing options...
ChrisSZ Posted March 31, 2006 Share Posted March 31, 2006 I'd be interested in the answer to this one too as I've just scored myself a set of GT4 205 calipers. I'm inclined to go for the 3G GR-10 that Paul does - price is right LOL! Quote Link to comment Share on other sites More sharing options...
tDR Posted March 31, 2006 Share Posted March 31, 2006 I'd be interested in the answer to this one too as I've just scored myself a set of GT4 205 calipers. I'm inclined to go for the 3G GR-10 that Paul does - price is right LOL! Do the ST205 calipers bolt straight on in place of J spec brakes front and rear? Then just use Supra discs? Cheers, Brian. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted March 31, 2006 Share Posted March 31, 2006 On UK brakes the stock Toyota discs are as good as it gets until you go to separate bells with a lightweight race disc. On J-Spec brakes i again firmly believe that the stock discs are as good as it gets. The fancier the box, the more funny grooves, or the more bizarre the coating on the discs the more *rap they are, in my experience. Quote Link to comment Share on other sites More sharing options...
Todd Posted March 31, 2006 Share Posted March 31, 2006 Do the ST205 calipers bolt straight on in place of J spec brakes front and rear? Just pull them off your dads car and let us know he'll not mind Quote Link to comment Share on other sites More sharing options...
ChrisSZ Posted March 31, 2006 Share Posted March 31, 2006 Do the ST205 calipers bolt straight on in place of J spec brakes front and rear? Then just use Supra discs? Cheers, Brian. Fronts = yes. Rears = dunno??? :) Quote Link to comment Share on other sites More sharing options...
ChrisSZ Posted March 31, 2006 Share Posted March 31, 2006 On UK brakes the stock Toyota discs are as good as it gets until you go to separate bells with a lightweight race disc. On J-Spec brakes i again firmly believe that the stock discs are as good as it gets. The fancier the box, the more funny grooves, or the more bizarre the coating on the discs the more *rap they are, in my experience. Any actual justification for this opinion mate? Have you had fancy coated, multi-groved discs and found them to perform worse than standard??? Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted March 31, 2006 Share Posted March 31, 2006 Any actual justification for this opinion mate? Have you had fancy coated, multi-groved discs and found them to perform worse than standard??? Yes, most of them are based on Taiwanese or Chinese castings, that are soft as whatsit, out of balance, and poorly machined. The ones with holes nailed in them are even worse. A genuine Toyota disc has balance weights, if needed. El Cheapo ones are just finish machined and core shift in the (bad) castings means they can be wildly out of balance. Quote Link to comment Share on other sites More sharing options...
Steve W Posted March 31, 2006 Author Share Posted March 31, 2006 So, if the Toyota ones are best, and, i've warped 'em on an N/A doing fairly mundane speeds (these are UK brakes BTW), there's no better choice ?? Why would the Soop eat discs like that then ?? There are much heavier cars just as fast (as my N/A that is !) and our discs are pretty substantial....aren't they ?? No solution ?? [and it's not like they're even CHEAP ! ! !] Quote Link to comment Share on other sites More sharing options...
MKIVDreamer Posted March 31, 2006 Share Posted March 31, 2006 Am I right in thinking that one of the common reasons for warping is having the brakes applied onto hot disc. The cooling down of the disc is not uniform because the pads applied to the disc surface will affect the uniform heat disipation. This puts extra stresses on the disc around the affected area and results in warping...? *waits to be corrected * Quote Link to comment Share on other sites More sharing options...
Nic Posted March 31, 2006 Share Posted March 31, 2006 So, if the Toyota ones are best, and, i've warped 'em on an N/A doing fairly mundane speeds (these are UK brakes BTW), there's no better choice ?? Why would the Soop eat discs like that then ?? There are much heavier cars just as fast (as my N/A that is !) and our discs are pretty substantial....aren't they ?? No solution ?? [and it's not like they're even CHEAP ! ! !] Were the discs definitely genuine Toyota parts Steve? What pads were you using? Are you sure it is the discs that are warped and not a wheel bearing that is worn? You'll feel a vibration under braking if your bearing is shot, that could be mistaken for a warped disc. Quote Link to comment Share on other sites More sharing options...
Nic Posted March 31, 2006 Share Posted March 31, 2006 Any actual justification for this opinion mate? Have you had fancy coated, multi-groved discs and found them to perform worse than standard??? Question you CW the Jedi Master, you will? Much to learn young Padiwan he has Quote Link to comment Share on other sites More sharing options...
Jake Posted March 31, 2006 Share Posted March 31, 2006 Padiwan? Is that some kinda Irish network thing? Quote Link to comment Share on other sites More sharing options...
Nic Posted March 31, 2006 Share Posted March 31, 2006 Padiwan? Is that some kinda Irish network thing? Yes Quote Link to comment Share on other sites More sharing options...
Steve W Posted March 31, 2006 Author Share Posted March 31, 2006 Yes Nic. Toyota discs and pads (fronts AND rears) must admit do need to just check bearings but drives/cruises fine, it's only under braking (and not even very hard braking). Quote Link to comment Share on other sites More sharing options...
Nic Posted March 31, 2006 Share Posted March 31, 2006 Yes Nic. Toyota discs and pads (fronts AND rears) must admit do need to just check bearings but drives/cruises fine, it's only under braking (and not even very hard braking). It was only under braking that I got a vibration from the wheel bearing on mine, if it's coming from the nearside front, then could well be a bearing is shot as a result of kerbing. Quote Link to comment Share on other sites More sharing options...
Steve W Posted March 31, 2006 Author Share Posted March 31, 2006 KERBING !? !!? Don't you start swearing at ME ! ! Not US mate, but possibly previous owner, but it's been fine past ~5months (he may have 'started' it off though 'spose) Quote Link to comment Share on other sites More sharing options...
Nic Posted March 31, 2006 Share Posted March 31, 2006 KERBING !? !!? Don't you start swearing at ME ! ! Not US mate, but possibly previous owner, but it's been fine past ~5months (he may have 'started' it off though 'spose) krap that's 2 stupid spelling mistakes in the last few minutes, I need another Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted March 31, 2006 Share Posted March 31, 2006 I have never ever had to change a stock disc through waeping, they seem fine, if you buy some temperature paint from somewhere and get a reading about how hot the discs are getting i can give some meaningful advice. The stock pads are not suitable for other than normal road usage, there are other, far better, options if you are pushing the envelope with stock brakes. Quote Link to comment Share on other sites More sharing options...
ChrisSZ Posted March 31, 2006 Share Posted March 31, 2006 Yes, most of them are based on Taiwanese or Chinese castings, that are soft as whatsit, out of balance, and poorly machined. The ones with holes nailed in them are even worse. A genuine Toyota disc has balance weights, if needed. El Cheapo ones are just finish machined and core shift in the (bad) castings means they can be wildly out of balance. I can well understand the 'cheap' bit mate but not so sure on the 'fany' ones being crap as well - surely if you're paying a fair wedge then the discs should relflec this?? I personally would never use cheap discs but would like to know why I shouldn't use (more expensive) 'fancy' discs?? Quote Link to comment Share on other sites More sharing options...
Keith C Posted March 31, 2006 Share Posted March 31, 2006 More expensive does not always mean better... Quote Link to comment Share on other sites More sharing options...
ChrisSZ Posted April 1, 2006 Share Posted April 1, 2006 More expensive does not always mean better... Quite so, the question I am trying to get answered is "Why not?" What is the problem with other discs in their fancy boxes? What is it about their design that makes them perform worse than the stock Mr T discs? Quote Link to comment Share on other sites More sharing options...
bignum Posted April 1, 2006 Share Posted April 1, 2006 I cooked 2 lots of stock brakes on the track before switching to some red dot 20 groove discs and fast road pads, ive done at least 10 trackdays on these with no fade and no warping, so they work for me. Quote Link to comment Share on other sites More sharing options...
Thorin Posted April 1, 2006 Share Posted April 1, 2006 Padiwan? Is that some kinda Irish network thing? PMSL Quote Link to comment Share on other sites More sharing options...
Gaz Walker Posted April 1, 2006 Share Posted April 1, 2006 Never warped stock Toyota discs Chris?!!! Gaz. Quote Link to comment Share on other sites More sharing options...
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