LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

Big Brakes and 4 Piston Calipers

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Old 09-02-03, 08:17 AM
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JBrady
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Default Big Brakes and 4 Piston Calipers

Guys, thought I would post a couple pictures of the 1995-2000 LS400 brakes. These are essentially the SAME front brakes as on the 1993-1998 Supra Twin Turbo (rotors are just slightly smaller (2 tenths of an inch) to allow wheel clearance.

The stock front brakes are 12.4" vented rotors with huge 4 piston calipers.
Attached Thumbnails Big Brakes and 4 Piston Calipers-front-caliper.jpg  
Old 09-02-03, 08:20 AM
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JBrady
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The rear brakes are also pretty nice. 12.2" vented rotors with single piston calipers. None of the other Lexus sedans have vented rear disks and these are the largest.
Attached Thumbnails Big Brakes and 4 Piston Calipers-im000411.jpg  
Old 09-03-03, 11:57 PM
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RA40
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If I interpret this, the possibility to fit a big brake kit from the 4'th gen Supra is possible? I'd called Toysport about other parts interchangeability but few have experimented with the LS so far. Any word about wheel off-set?

The swapping/interchanging of parts from one model Toyota to another has been fascinating. At least as far as what is been done with the first and second gen Celicas.
Old 09-04-03, 08:10 PM
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JBrady
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Originally posted by RA40
If I interpret this, the possibility to fit a big brake kit from the 4'th gen Supra is possible? I'd called Toysport about other parts interchangeability but few have experimented with the LS so far. Any word about wheel off-set?
Also the any 95-2000 LS400 should be a viable donor car for a big brake upgrade on 90-94 LS400s and SC300/400s. You could even use the stock 95-2000 wheels. None of this has been confirmed but it does seem highly likely.
Old 09-04-03, 09:02 PM
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persian451
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can you fit 2nd gen rotors and brakes on the 1st gen?
Old 09-08-03, 01:53 PM
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Plz let us know!?

heh
Old 09-08-03, 05:48 PM
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Rhabryn
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anyone know of any lexus graveyards? i feel like digging and even though my city has alot of lex's, there are none gracing any of the junkyards. I hate the brakes on my 1990, and I would kill for some BIG brakes from a newer model ( i have 18 inch wheels so im good on clearance).
Old 09-09-03, 01:45 AM
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RA40
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This may be a question to run in the Toymods forum. There is a surprising amount of interchangeability among/between various Toyota's. However it takes time and money to find parts to measure and put on the car. Not to mention if this is your daily driver. I have a strong suspicion that GS parts will also work and there are plenty of hi-po upgrades available.

Next month when I install the springs, I'll see what differences there are for strut cartridges. The GS weighs about 300 less than the LS but that is minimal. The GS300/400/430 pretty much use the same cartridge. <shrug>

In the end it will likely come down to measuring and swapping to learn.
Old 10-07-03, 10:18 PM
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Lexkost
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Originally posted by persian451
can you fit 2nd gen rotors and brakes on the 1st gen?
Persian451 When we do your suspension and brakes this weekend we will see if a 2nd gen. could fit on a 1st gen.LS , by comparing them side by side.

Last edited by Lexkost; 10-07-03 at 10:19 PM.
Old 10-07-03, 11:14 PM
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persian451
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sure thing, but if it would fit, we need a master cylinder of a 93-94
Old 10-07-03, 11:17 PM
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Why's that? Are you saying that if I upgraded my breaks I would also need to get a new brake master cylindar? Thanks,

-Jason Elcan
Old 10-07-03, 11:20 PM
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persian451
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i think so
Old 10-08-03, 12:00 PM
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Pagong
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most likely yes, you will need the master cylinder from the newer donor car.

Im not sure if there is a difference in size or in the lines that the old master cylinder will probably not have enough pressure to clamp on the bigger calipers of the newer car. Everytime we swap brakes between a Civic and a Type R we always get the bigger master cylinder of the Integra in place of the Civic. We've also found out that swapping the NSX caliper in a Civic can get away with using the Integra master cylinder as well.

But as far as LS400's master cylinders I could be wrong and the bigger brakes from the newer car may work or you probably have to switch out to the newer master cylinders.

here's a junkyard for Toyotas and Lexus' here on our place www.Nix99.com check them out. They have a 95 LS that's been sitting there and may still be available.
Old 10-08-03, 12:14 PM
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Pagong
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Here you go parts from the 95 LS400:

Brakes Master Cylinder $90
Front Brakes $50
Rear Brakes $70
Calipers (4 total) from $65 - $70


Here;s the link

http://www.nix99.com/asp/vehicles/De...sp?id=85187304


If I calculated that right that is a big brake upgrade for the 90-94 LS for about $480 probably plus shipping too. Not bad huh.
Old 10-10-03, 09:31 AM
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HKGS300
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Can you post some more pics of the LS400 4-calipers? And do you have any information like size and weight?

I don't think these are the same calipers as the Supra calipers, but they look nice!


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