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Old 06-28-2009, 01:24 AM   #1
Scooby Specialist
Member#: 81095
Join Date: Feb 2005
Chapter/Region: South East
Location: Left seat.
2005 WRX EJ205 weed-
whacker. OS self-tuned!

Question Question about brake pad life

I go through 2-3 sets of rear pads for every set of front pads, which doesn't seem normal, so I'm wondering what I'm doing wrong. Current setup:

Stoptech front BBK w/332mm rotors, Ferodo D2500 pads
H6 rear setup, Axxis Deluxe pads

In daily driver use, the wear pattern seems pretty even front to back, but a single track day will wear the rear pads down to the backing plates. I've tried different pads; OEM compound wore even faster (I was hoping the forward shift in brake bias might extend pad life), and the rear bias shift with Axxis ULT pads made the car a bit nervous under heavy braking (lasted the longest, though). Axxis Deluxe pads sit right in between the ULTs and OEM pads in life and performance, as one might expect.

Is the rearward bias of the Stoptech BBK combined with the increased torque of the H6 rotor just killing the pads? I'm not particularly attached to the H6 rotor setup; the only motivation was the increased heat capacity of the larger rotor. If I can return to a more sane pad wear pattern with the stock sized rotor, I'll happily throw them back on.

...or is this pattern of pad usage totally normal?
FromageTheDog is offline   Reply With Quote

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