First photo is drivers, 2nd is passenger. Rears wear is about even. This is after 4 track days then 3 months of DD. DTC-60s. Standard 99 master with Trackspeed Brake Prop Valve Kit. Da **** is going on?

Driver side passages side

 

Maybe caused by the outside wheel in turns on the track spinning faster than the inside? That seems a little ridiculous considering the amount of trail/left foot braking that would be needed for that much turn based wear.

Do you have all factory hard lines? Maybe there's a kink in a line.

I need to go check mine now...

 

Does the car have ABS?

Maybe it's dragging on the passenger side a bit?

FWIW, I get a lot more brake dust a lot sooner on the passenger front, and it does seem to wear a bit faster than the driver side, but nothing as extreme as yours.

--Ian

Edit: Just noticed that the rotor on the passenger side is thinner than the driver one too. More rotor wear => less heat sink => higher brake temps => faster pad wear? Also, the rotor isn't as well centered in the caliper.

 

The right side is either stuck and dragging, or the left side is stuck and not applying similar pressure. Does it pull to one side under braking? Do both wheels spin freely?

 

Replace the passenger side caliper

 

I didn't notice that. I will check when I put the car up again. The caliper might be no centered. And no ABS

They spin freely and does not seem to be any high spots. I think codrus figured it out.

Already shopping for them.

 

Found one of the shims used is 2x to big and the correct size ones are warped. Replacing the .035 x2 with 1 .07 grade 8. Spent 30 minute at the hardware store measering washers to fine 4 that are exactly .07.

 

To avoid this in the future, be sure to clean the pistons with brake cleaner and a wipe of a rag etc before pushing the pistons back in for new / thicker pads, it will help prolong life of the seals