raddys Posted January 26, 2016 Share Posted January 26, 2016 Ive already bought my ls400 front calipers and im just about to buy some uk spec rears, but would this really f up the brake bias and make my car snakey and twitchy under hard braking? any help appreciated Many thanks Quote Link to comment Share on other sites More sharing options...
inazone Posted January 26, 2016 Share Posted January 26, 2016 I'm curious too, how would one work out the brake bias? As I have D2 Front brakes and have been considering changing my jspec rears for UK spec. Quote Link to comment Share on other sites More sharing options...
j_jza80 Posted January 26, 2016 Share Posted January 26, 2016 There's a thread on here that DanDan made that lists the specs of the various brake calipers. It's beyond my knowledge, but I believe that because the LS400 calipers utilise the same size and numer of pistons as the UKs, and therefore (all other things being equal) create the same clamping force, brake bias *should* be the same. But don't quote me on that. That isn't to say the LS400 front brakes are comparable to UKs BTW, they are inferior. Quote Link to comment Share on other sites More sharing options...
Kendo11 Posted January 26, 2016 Share Posted January 26, 2016 There's a thread on here that DanDan made that lists the specs of the various brake calipers. It's beyond my knowledge, but I believe that because the LS400 calipers utilise the same size and numer of pistons as the UKs, and therefore (all other things being equal) create the same clamping force, brake bias *should* be the same. But don't quote me on that. That isn't to say the LS400 front brakes are comparable to UKs BTW, they are inferior. That. I think the LS ones are just equivalent to na ones. Quote Link to comment Share on other sites More sharing options...
jonc Posted January 26, 2016 Share Posted January 26, 2016 I have been running with ls400 callipers on front and jspecs on the back for years. Last year I fitted a new master cylinder and a stopper and my brakes stop the car on a dime. Even the MOT tester commented on the stopping force of the car at the last MOT. Quote Link to comment Share on other sites More sharing options...
inazone Posted January 26, 2016 Share Posted January 26, 2016 What makes the lexus calipers inferior to the UK specs? Is it size, material or design? Again just curious... Quote Link to comment Share on other sites More sharing options...
j_jza80 Posted January 26, 2016 Share Posted January 26, 2016 The calipers are physically smaller, limiting pad size. I also doubt they can dissipate heat like the UK's. The advantage of the LS400 calipers is they're lighter, although this is cancelled out by the discs. The discs for the uks are larger diameter, and importantly the UK's have directional venting and are a lot lighter. As the brake discs are rotating mass, the two setups have a roughly equivalent weight penalty. Of course, the LS400 setup is a great upgrade for not a lot of money, and for those who care, are probably a bit better looking Quote Link to comment Share on other sites More sharing options...
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