bigbloodyturbo Posted May 14, 2009 Share Posted May 14, 2009 Just putting some pics of my LS400 caliper conversion up for those that asked for them. The only parts you'll need other that the calipers, pads and discs are the caliper bolts themselves as they differ in length to the standard supra bolts, the part number is 90105-12228 Quote Link to comment Share on other sites More sharing options...
Chris and Alana Posted May 14, 2009 Share Posted May 14, 2009 Do the rear calipers, disk's etc from a ls400 fit the supra? Quote Link to comment Share on other sites More sharing options...
bigbloodyturbo Posted May 14, 2009 Author Share Posted May 14, 2009 As far as I know the rears don't fit. I haven't actually tried it but the American guys who started doing this first tried it and it was a non-starter I think. Quote Link to comment Share on other sites More sharing options...
Wez Posted May 14, 2009 Share Posted May 14, 2009 Quote Link to comment Share on other sites More sharing options...
Chris and Alana Posted May 14, 2009 Share Posted May 14, 2009 Cool, thanks for the info I take it these will be just about on par with the 'UK' brakes as far as stopping power and resistantce to fade are concerned. Iv been looking for a more cost friendly way of upgrading the j-spec brakes for a while. The 'UK' brakes cost a fair bit, even second hand Will fitting these to the fronts and keeping the j-spec rears have any negitive effect? I know in an ideal world both should be upgraded at the same time but is it necessary? If my mind remembers correct did Jamie P run D2 8pots on the front with j-spec rears without any concerns? Quote Link to comment Share on other sites More sharing options...
bigbloodyturbo Posted May 14, 2009 Author Share Posted May 14, 2009 Some people have raised concerns about brake bias while keeping the rear jspecs, personally I haven't really felt any ill-effects. The other point raised was the master cylinder and its capability to supply the bigger caliper, again I haven't had any problems with this other than sometimes a slight pedal drop the first time you use them after the car has sat for a few days. As for comparison with UK's, I dont have much experience with them but the numbers add up to this. LS400 alloy 4 pot = 315mm disc and a 9lb caliper. UK/export Iron?4pot = 323mm disc with a 15lb caliper. The difference can't be that big but I would hazard a guess that the UK's are more powerful. I haven't managed to push mine into fade yet but then I may not be trying hard enough;) Quote Link to comment Share on other sites More sharing options...
Wez Posted May 14, 2009 Share Posted May 14, 2009 Would be interesting to find out what pads are available for them Quote Link to comment Share on other sites More sharing options...
bigbloodyturbo Posted May 14, 2009 Author Share Posted May 14, 2009 Would be interesting to find out what pads are available for them I intended on getting porterfields but it never happened. This is the main problem with this conversion, the pad selection is crap. I wouldn't mind trying to fit UK pads in but I don't know if they'd fit, I reckon it would be a longshot. Quote Link to comment Share on other sites More sharing options...
Wez Posted May 14, 2009 Share Posted May 14, 2009 Are the GS400 and LS400 4pot brakes the same? If so Performance Friction have pads available http://www.performancefriction.com/pages/application_lists/2040902_PFC_App_Cross_P3.pdf http://www.performancefriction.com/pages/application_lists/2040902_PFC_App_Cross_P2.pdf Quote Link to comment Share on other sites More sharing options...
bigbloodyturbo Posted May 14, 2009 Author Share Posted May 14, 2009 Are the GS400 and LS400 4pot brakes the same? If so Performance Friction have pads available http://www.performancefriction.com/pages/application_lists/2040902_PFC_App_Cross_P3.pdf http://www.performancefriction.com/pages/application_lists/2040902_PFC_App_Cross_P2.pdf The first link is interesting although it would suggest that 93-98 export supra pads are the same as GS400 pads which I'm not sure about, if they were it would be great as the selection would be huge. The second link is for the previous generation LS400 which used the same calipers as the jspec supra. The ones in the conversion are for 95+ LS400's. Quote Link to comment Share on other sites More sharing options...
Wez Posted May 14, 2009 Share Posted May 14, 2009 Ok. Quote Link to comment Share on other sites More sharing options...
bigbloodyturbo Posted May 14, 2009 Author Share Posted May 14, 2009 Checked on toyodiy and the GS400 brakes appear to be 2pot:( http://www.toyodiy.com/parts/p_U_1999_LEXUS_GS300~400~430_UZS160L-BEAQKA_4705.html Quote Link to comment Share on other sites More sharing options...
Wez Posted May 14, 2009 Share Posted May 14, 2009 I tried calling PF but no joy, will try again tomorrow. Quote Link to comment Share on other sites More sharing options...
garethr Posted May 14, 2009 Share Posted May 14, 2009 (edited) Do the rear calipers, discs etc from a LS400 fit the Supra?IIRC, the LS rears which match those fronts are solid discs and 2-pot opposed piston calipers. Checked on toyodiy and the GS400 brakes appear to be 2potThey are the same as "J-spec" Supra fronts. The GS cars didn't have decent front brakes until the 3rd generation. Edited May 14, 2009 by garethr (see edit history) Quote Link to comment Share on other sites More sharing options...
SIMON LC Posted May 14, 2009 Share Posted May 14, 2009 So let me get this right. If I manage to locate Front brake calipers and discs off a 95-onwards Lexus LS 400,they will fit straight onto my Supra as long as I got the longer caliper mounting bolts? Quote Link to comment Share on other sites More sharing options...
bigbloodyturbo Posted May 14, 2009 Author Share Posted May 14, 2009 So let me get this right. If I manage to locate Front brake calipers and discs off a 95-onwards Lexus LS 400,they will fit straight onto my Supra as long as I got the longer caliper mounting bolts? Yes, you may have to remove a small bit of material from the caliper (3rd picture) but it is a small amount and is easy to do in 2 mins, other than that your set. The caliper bolts are shorter I think as the stock supra bolts require standoffs to make them work, not recommended IMO. Quote Link to comment Share on other sites More sharing options...
SIMON LC Posted May 14, 2009 Share Posted May 14, 2009 Sounds great alternative to expensive UK spec upgrade.Looks like a weekend round my local breakers yards.Lol. Quote Link to comment Share on other sites More sharing options...
garethr Posted May 14, 2009 Share Posted May 14, 2009 FYI, the model code is UCF20. UCF10 is the earlier car with the small brakes and UCF30 is the LS430 with the big monobloc calipers which are not a straight fit on the Supra. Quote Link to comment Share on other sites More sharing options...
Brad88 Posted May 14, 2009 Share Posted May 14, 2009 could someone who has done this please measure the distance of the face of the calliper off the disc. Interested to see how much wheel clearance is required from the face of the front disc. Quote Link to comment Share on other sites More sharing options...
supramemole Posted May 15, 2009 Share Posted May 15, 2009 hey all. I fit US spec front TT calipers rotors and pads on my NA Jspec. I only had to trim the dust shield...my question for everyone here is what is the cost difference on them, meaning the LS brake setup VS the US or UK spec??? I know i bought brand new US spec TT front calipers, rotors and pads for 550 USD. which isnt very much considering. maybe i should start selling these to you guys overseas...LOL... Chris Quote Link to comment Share on other sites More sharing options...
bigbloodyturbo Posted May 15, 2009 Author Share Posted May 15, 2009 could someone who has done this please measure the distance of the face of the calliper off the disc. Interested to see how much wheel clearance is required from the face of the front disc. I'll measure it today at some point for you. You want the to know the distance from disc face to the caliper face or the hub section of the disc (bit with the holes in it) to the caliper face? hey all. I fit US spec front TT calipers rotors and pads on my NA Jspec. I only had to trim the dust shield...my question for everyone here is what is the cost difference on them, meaning the LS brake setup VS the US or UK spec??? I know i bought brand new US spec TT front calipers, rotors and pads for 550 USD. which isnt very much considering. maybe i should start selling these to you guys overseas...LOL... Chris Yes those prices are very good, that would probably get you the calipers on their own here:) Would hate to see how much the shipping would be though. @garethr: I was looking at LS430 calipers a while back and they are massive, all alloy like you say but they have a strange way of mounting, like a bolt goes straight through it. Do you know how those are mounted? Quote Link to comment Share on other sites More sharing options...
Brad88 Posted May 15, 2009 Share Posted May 15, 2009 (edited) I'll measure it today at some point for you. You want the to know the distance from disc face to the caliper face or the hub section of the disc (bit with the holes in it) to the caliper face? thanks mate, I need to know the minimum clearance for the rims, IE how far off the face of the disc to inside of the wheel. So if you put a tape measure perpendicular to the disc, what would be the additional width of the calliper if that makes sense... lol I'll see if I can find a picture.. Edit: The distance between the 2 Grey Lines at the top and also the distance from from the Black Line to the right Grey line, IE the back of the spoke of the rim and the face of the disc. http://img36.imageshack.us/img36/897/techwheelfit2.png Edited May 15, 2009 by Brad88 (see edit history) Quote Link to comment Share on other sites More sharing options...
garethr Posted May 15, 2009 Share Posted May 15, 2009 They need more or less the same clearance as the "UK" Supra calipers. 70mm IIRC. Quote Link to comment Share on other sites More sharing options...
bigbloodyturbo Posted May 15, 2009 Author Share Posted May 15, 2009 thanks mate, I need to know the minimum clearance for the rims, IE how far off the face of the disc to inside of the wheel. So if you put a tape measure perpendicular to the disc, what would be the additional width of the calliper if that makes sense... lol I'll see if I can find a picture.. Edit: The distance between the 2 Grey Lines at the top and also the distance from from the Black Line to the right Grey line, IE the back of the spoke of the rim and the face of the disc. http://img36.imageshack.us/img36/897/techwheelfit2.png The distance between the two grey lines(disc face to caliper outer face) is approx. 67.5mm. The other distance (from rear of spokes) I can't do as I have aftermarket rims so the measurement won't help you. The distance from the hub section of the disc to the disc surface is approx 24.5mm (they're only a month or so old so very little wear) I hope that helps, I can take the measurement of the caliper itself later but it would probably involve taking the wheel off. Quote Link to comment Share on other sites More sharing options...
Brad88 Posted May 15, 2009 Share Posted May 15, 2009 The distance between the two grey lines(disc face to caliper outer face) is approx. 67.5mm. The other distance (from rear of spokes) I can't do as I have aftermarket rims so the measurement won't help you. The distance from the hub section of the disc to the disc surface is approx 24.5mm (they're only a month or so old so very little wear) I hope that helps, I can take the measurement of the caliper itself later but it would probably involve taking the wheel off. Thanks mate, that's all I was after, just wanted to confirm the 70mm required clearance basicly. Off to the wreckers next week with a bit of luck! Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.