I am in the process of ordering, after having a chat with Mike from FIGS, a set of caliper brackets that will allow me to mount my stock calipers further out, enabling me to run 323mm UK Spec Supra discs instead of the 296mm stock ones.
It really is a no brainer if you're thinking about a brake upgrade for an IS200/IS300/Altezza.
My reasons for going for this upgrade over doing the whole Supra caliper upgrade are as follows.
- No chopping bits off or removing the dust guard
- You don't have to remove or bleed the brake lines
- Useable stopping power is virtually identical to the Supra TT calipers, as the tyres become a limiting factor if you go any higher
- WAY cheaper to buy and maintain
- Better modulation/pedal feel while braking
Intallation is simple on these. It's only two steps more than changing your brake rotors during a normal brake job. (Three if you're adding SS lines when you do it.)
-Once your car is lifted securely with the wheels removed you will unbolt & remove the caliper just like when you're changing pads. *If you're doing brake lines now is the time to do it. *
-Remove pads & pad clips from the caliper bracket. You'll need the pad clips for the new bracket.
-Remove the 2-17mm bolts that hold the bracket & remove bracket.
-Remove stock rotor from hub
-Bend back top & bottom of dust sheild approx. 1/4 inch to clear TT rotor (I left these on as they aid in cooling)
-place Supra rotor on hub & check dust sheild clearance. Once ok procede.
-either remove slide pins from stock caliper bracket & press into new caliper bracket **or** press new slide pins into new caliper bracket (pay attention top & bottom are different)
-install new caliper bracket (pay attention to right & left sides)
-install pad clips & pads
-replace caliper & bleed brakes
-bed pads & enjoy.
And a small quote from a guy who has done his maths...
The force (torque) is directly proportional to the increase in size (radius.) t = F x R
So since the force is equal (same caliper, same piston cross section) the increase in torque is directly the increase in radius.
So 1" on top of 11.7" is an 8% increase in potential braking force. Add in the metalurgical differences of the alloyed rotors and the improved thermal charateristics and I would throw another 5-10% given my experience with the two peice rotors I am running.
I've already ordered the Supra discs and new front pads, and I've also decided to fit new rubber boots and slide pins while I'm at it.
Also just to note, Mike has done me a good deal on this set, as my intention is that once you guys see what a great upgrade this is, we can then organise a group buy with FIGS.
So just to summarise: Stock IS200 Calipers, Stock IS200 Pads, UK Supra Discs
These are not my pictures, but here are a few I found on an american forum to show the brackets, and how the Supra discs look with OEM 17" wheels fitted...