LS 4-piston Brake setup for my SC4
#158
Driver School Candidate
Join Date: Mar 2006
Location: fl
Posts: 48
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
hey man, i p.m.'d you but just let me know about this because i am definitely doing the conversion but if you let me know the complications, if any i'd appreciate it, greatly. take care man
T
T
#160
Pole Position
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
i converted to ls400 calipers over a year ago. used the same sc300 brake lines w/ ebc green pads. it takes veyr little braking effort to stop the car compared with stock caliper. my brake feels very mushy/soft. I always thought this was normal being that these calipers came from an ls400 (old man's car). my buddy drove my car and thought that it should have a greater initial bite. anyone here using stock sc300 brake lines? how does your pedal feel?
#161
Lead Lap
iTrader: (2)
Join Date: Aug 2004
Location: Oregon
Posts: 550
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
I converted mine to TT brakes front and rear with ss lines, hawk pads, bled them out 2x after the initial install, and bled again a week later. Went through two GIANT cans of brake fluid in the process....and I still have the stupid mushy pedel feel.
I'm guessing the master cylinder has to be the problem???
I'm guessing the master cylinder has to be the problem???
![Sad](https://www.clublexus.com/forums/images/smilies/sad.gif)
#162
Driver School Candidate
Join Date: Nov 2006
Location: Ontario
Posts: 40
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
It's a common issue when upgrading to a more powerful braking system. The master cylinder isn't designed to provide that much fluid. You need a higher capacity master cylinder to get the brake feel back.
#165
Lexus Test Driver
Join Date: Apr 2003
Location: New York
Posts: 1,466
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
To get rid of that mushy feeling just get ss lines. Simple. No need for the master cylinder change. I have the full tt setup and it stops hard, a bit too hard sometimes. The ss lines changed the way the brakes felt, i'm not saying it helped in performance but it sure felt better.