James Posted July 27, 2017 Share Posted July 27, 2017 Ksports definitely offer more clearance than UK calipers so if your current wheels fit with UKs you'll have no issues Whifbitz actually keep them in stock too, the only place that does and saves the 15+ week wait I love mine [emoji3] How much clearance was gained by changing to K-Sports? I have an issue with fouling the caliper slightly as it stands so would like to mitigate that. Changing wheels isn't an option Quote Link to comment Share on other sites More sharing options...
Cam27 Posted July 27, 2017 Share Posted July 27, 2017 Is anyone running the full set of K-sports? I've been thinking about going front and rear in one go. I have Ksports front and rear, 8 pot front and 4 pot rear. They were on the car already when I bought it, but if i were to start again i would prefer uk specs if i am honest. Also it's worth bearing in mind that with the 8 pot fronts you will have to run 19" wheels. Quote Link to comment Share on other sites More sharing options...
berg Posted July 27, 2017 Share Posted July 27, 2017 How much clearance was gained by changing to K-Sports? I have an issue with fouling the caliper slightly as it stands so would like to mitigate that. Changing wheels isn't an option I never fitted my UK spec brakes as i didnt want to run a spacer as big as required, i had no chance with my wheels I have read UK specs stick out around 23mm more than a jspec caliper, and ive worked out my Ksport is around 10/11mm more than a jspec caliper That figure is based on me having 8mm clearance from jspec caliper to the spoke, once ksports were fitted the wheel did bolt on fully but caught the top and bottom of the caliper very slightly while spinning, so add a few mm for definate clearance So if its clearance you need they do offer that over UK specs Quote Link to comment Share on other sites More sharing options...
berg Posted July 27, 2017 Share Posted July 27, 2017 I have Ksports front and rear, 8 pot front and 4 pot rear. They were on the car already when I bought it, but if i were to start again i would prefer uk specs if i am honest. Also it's worth bearing in mind that with the 8 pot fronts you will have to run 19" wheels. Only the 380mm kits need 19s, the 356mm 8 pots work under 18" wheels Quote Link to comment Share on other sites More sharing options...
el_bandido Posted July 27, 2017 Share Posted July 27, 2017 I have Ksports front and rear, 8 pot front and 4 pot rear. They were on the car already when I bought it, but if i were to start again i would prefer uk specs if i am honest. Also it's worth bearing in mind that with the 8 pot fronts you will have to run 19" wheels. I was looking at the 356mm discs to go with the kit, which is about 14". I'd expect that to fit under some 18" wheels, or would I have to have the 330mm kit? edit: didn't see the answer from Berg so ignore this. Quote Link to comment Share on other sites More sharing options...
ShawnPreece Posted July 27, 2017 Author Share Posted July 27, 2017 Put some Porterfield Race pads in, and Motul RBF600 or 660 brake fluid, and they will easily cope with anything you will throw at them, trust me Might well be this but my green supra only has j specs all round and as that will be running decent power I need to upgrade them really and as I have the rear UK's come off Sally (done that on purpose ) thought it made sense to use the fronts off her too for a complete set and get some new fronts for Sally (and an excuse to upgrade) You'll absolutely ruin your car, the read below from Chris Wilson Get the best pads you can on the rears, beef those up and get some good stuff on the front. You're only doing 1-2 stops so you'll be within the parameters of the setup. Very interesting read and totally get the point that as its an even pressure applied and the front will work better under less pressure that the rears wont work as well.... just thinking for my type of driving whether it will make as big a difference as it will be just general road use and a few straight line stops from high speeds... it might well make to much difference but thats just what im trying to work out now Another interesting video from motive dvd, it didn't upset that gtr atall. If you are doing it mainly for show shawn you will be fine. Its worth pointing out the amount of US Supra with large front/small rear brake setup for drag is high and has been done for years. If I was upgrading id be looking at fronts and rears leaning towards a set that was designed for the car, some like AP racing or Brembo but obviously that is ££££! Never liked oem Supra brake peddle feel either. Yeah im building it mainly as a show car just with a bit of go for an occasional bit of fun and maybe the odd drag or 2 so initial thoughts was that it would be ok but just gauging how unbalanced it would be from peoples opinions. Especially for my use I suppose I could do abit of trial and error and just try them out and if I dont like them I can switch back p.s. you still got the UK rears? haha I do but looking to put the whole UK setup on the green Supra This is a good little app https://www.blackartgraphics.com/pages/toyota-supra-brake-bias-app Thats a great read thanks for the link mate, I know for track use and "proper driving" Id need to fully take this into account but just gauging ow bad it would be from general driving as il admit now im a show queen and dont use it to anywhere near its potential I have read UK specs stick out around 23mm more than a jspec caliper, and ive worked out my Ksport is around 10/11mm more than a jspec caliper That figure is based on me having 8mm clearance from jspec caliper to the spoke, once ksports were fitted the wheel did bolt on fully but caught the top and bottom of the caliper very slightly while spinning, so add a few mm for definate clearance So if its clearance you need they do offer that over UK specs Thanks for the measurements mate that sounds perfect Thanks for the advice everyone much appreciated, I know for track use balance would be the law but just gauging what it will be like for me only really doing straight line stops other than general driving Quote Link to comment Share on other sites More sharing options...
Burna Posted July 27, 2017 Share Posted July 27, 2017 Might well be this but my green supra only has j specs all round and as that will be running decent power I need to upgrade them really and as I have the rear UK's come off Sally (done that on purpose ) thought it made sense to use the fronts off her too for a complete set and get some new fronts for Sally (and an excuse to upgrade) That now makes complete sense, go for K-Sports mate and put the UK's on the green one. A large pair of K-Sports would look right on the white one as a show car Quote Link to comment Share on other sites More sharing options...
ShawnPreece Posted July 27, 2017 Author Share Posted July 27, 2017 That now makes complete sense Not very often people say that phrase to me Quote Link to comment Share on other sites More sharing options...
robtup Posted July 27, 2017 Share Posted July 27, 2017 I had uk brakes front and rear tried different pads and fluid they was never great changed to ksport front and rear with porterfeild pads and there 100x better Quote Link to comment Share on other sites More sharing options...
Burna Posted July 27, 2017 Share Posted July 27, 2017 I had uk brakes front and rear tried different pads and fluid they was never great changed to ksport front and rear with porterfeild pads and there 100x better /QUOTE] Go Performance Friction with your K-Sports and they will be even better mate Quote Link to comment Share on other sites More sharing options...
robtup Posted July 27, 2017 Share Posted July 27, 2017 Go Performance Friction with your K-Sports and they will be even better mate My mistake don't know where I got porterfeild from i have the performance friction pads sorry Quote Link to comment Share on other sites More sharing options...
bignum Posted July 27, 2017 Share Posted July 27, 2017 That's the problem with UK fronts, no decent pads available, as bunra says get performance friction race pads, 09 or 10 compound, work from cold and minimal bedding in. Quote Link to comment Share on other sites More sharing options...
Ric Posted July 27, 2017 Share Posted July 27, 2017 I'd love a set of Ksports on mine or similar, the look of big brakes is lovely. Im never going to track my car etc so it would fully be for looks. Quote Link to comment Share on other sites More sharing options...
Burna Posted July 28, 2017 Share Posted July 28, 2017 That's the problem with UK fronts, no decent pads available, as bunra says get performance friction race pads, 09 or 10 compound, work from cold and minimal bedding in. Bunra knows his stuff Quote Link to comment Share on other sites More sharing options...
ShawnPreece Posted July 28, 2017 Author Share Posted July 28, 2017 That's the problem with UK fronts, no decent pads available, as bunra says get performance friction race pads, 09 or 10 compound, work from cold and minimal bedding in. Thanks mate yeah its looking like il be going down this route I'd love a set of Ksports on mine or similar, the look of big brakes is lovely. Im never going to track my car etc so it would fully be for looks. Yeah thats what I was thinking with mine really too, mainly just for looks but should still be good for straight line stopping Quote Link to comment Share on other sites More sharing options...
Dnk Posted July 28, 2017 Share Posted July 28, 2017 (edited) Never had any problems with the OE UK set up once i'd replaced the old brake fluid and fitted braided lines Edited July 28, 2017 by Dnk (see edit history) Quote Link to comment Share on other sites More sharing options...
ShawnPreece Posted July 28, 2017 Author Share Posted July 28, 2017 Never had any problems with the OE UK set up once i'd replaced the old brake fluid yeah UK's are brilliant the idea of uprating the fronts from UK isnt really performance related its mainly because my other Supra is still on J spec brakes and when complete should be running 650-700bhp at a guess so I need to uprate the brakes on that and on this Supra because iv had to downrate the rear brakes to J Spec I got the UK rears to go on my other Supra so it makes sense to move the whole UK setup onto that supra and get new bigger fronts for this one Quote Link to comment Share on other sites More sharing options...
Big Mark Posted July 28, 2017 Share Posted July 28, 2017 I've put these on the Front on my car https://en-gb.facebook.com/RBRaceRotors/ I did try for the SRT-8 conversion but wouldn't fit my 18 or 19" wheels so are sat in my spare room gathering dust. Quote Link to comment Share on other sites More sharing options...
supraleon Posted August 2, 2017 Share Posted August 2, 2017 Hi everyone. I went with 8 pot k Sport on the front with 356mm discs and 4 pot K Sport with 356mm discs on the rear with Ferodo 2500 pads all round and Motul 5.1 brake fluid and Cusco stopper and I think the difference is amazing. Now my supra looks great and has much better braking performance. Quote Link to comment Share on other sites More sharing options...
adam1983 Posted August 2, 2017 Share Posted August 2, 2017 That's the problem with UK fronts, no decent pads available, as bunra says get performance friction race pads, 09 or 10 compound, work from cold and minimal bedding in. I thought the CW pads were meant to be pretty good on UKs? Quote Link to comment Share on other sites More sharing options...
Burna Posted August 2, 2017 Share Posted August 2, 2017 I thought the CW pads were meant to be pretty good on UKs? Depends on how far you push your brakes, some don't, others do beyond what CW fast road pads can cope with. CW race pads use to be Performance Friction, but not for ages now, so no idea what they are currently. Quote Link to comment Share on other sites More sharing options...
adam1983 Posted August 2, 2017 Share Posted August 2, 2017 Depends on how far you push your brakes, some don't, others do beyond what CW fast road pads can cope with. CW race pads use to be Performance Friction, but not for ages now, so no idea what they are currently. I suppose it depends mainly on what the use is I guess. The race pads I'm assuming will need to be warmed up to get decent braking. Not something you would be wanting for drag racing. Quote Link to comment Share on other sites More sharing options...
Burna Posted August 3, 2017 Share Posted August 3, 2017 I suppose it depends mainly on what the use is I guess. The race pads I'm assuming will need to be warmed up to get decent braking. Not something you would be wanting for drag racing. Not really, my Porterfield Race pads are better with heat in them, but you still get plenty of stopping power from cold, but they are very dusty! :/ Quote Link to comment Share on other sites More sharing options...
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