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DS2500 Pad Failure or Normal Wear?

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Old Nov 17, 2008 | 08:04 AM
  #16  
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From: PA
Originally Posted by SoCal Rally
what type of track days/racing are you doing? What type of rotors, fluid and tires are you using? Any other factors that you can think of that can explain that amount of pad wear?
1) regular HPDE's (highest level running group), no racing.
2) Stock rotors
3) Motul fluid
4) just NT01's in 245 size
5) Other factors: The only other mods I have is a brake duct kit and a mail-in flash so I'm still well below 300whp. Car is all stock, I don't even have ss lines, or any suspension changes. Even still on stock street alignment of only -1 deg up front.

Other than the one inside pad (of the drivers side caliper on clockwise track), the wear of the other pads is fine. See pics of all 4 pads. They appear not to be glazed or have signs of overheating.

My theory is that it has to do with the suspension - just due to the amount of lean. I get crappy tire wear too (just the outside 1" is wearing) and the rest of the tire is like new. Pictures of car show massive lean and even positive camber is seen on some pics up front when things are all loaded up and bending.... Since I do trail brake into corners, I am sure this affects how the caliper gets aligned in relation to the disc when things in the suspension get all out of shape. For next year, I plan to get some swift Spec r springs, a roll center kit and camber plates (& run ~ -2.5 camber). I hope this may have an impact on the inside pad wear by keeping things more in line. If that does not help, I'll work on my braking style - try to be easier.

Another possibility is that there was air in the outside part of the caliper so the inside pad gets more pressure than outside? But if that were the case, I would have expected to see a different wear rate between the right and left side calipers - which is not the case.

I do not exclude my driving style either. Maybe I'm too hard on the brake pedal. I do not think so, since I do have more pressure left if I need it for emergency use, I have no brake fluid boiling issues, and it does not appear that I overheat the pads.

For fun, see pics of the rear pad wear - more wear on the top edge of the pad than the bottom (the wear makes sense since the pistons are not in the middle of the pad, but towards the top)...
Attached Thumbnails DS2500 Pad Failure or Normal Wear?-dsc05183-small-.jpg   DS2500 Pad Failure or Normal Wear?-dsc05184-small-.jpg   DS2500 Pad Failure or Normal Wear?-dsc05185-small-.jpg   DS2500 Pad Failure or Normal Wear?-dsc05186-small-.jpg  




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