seems as good a place as any and i just took off my wheel to get some more pics and info.
brz, with me in it, < 3000 lbs
driven at intermediate level - i'm not slow, i'm not fast. i think i have poor braking habits and modulation that probably causes them to heat up more than they should.
i have 328 mm x 28 mm stoptech 2-piece rotors with st40 4-piston front calipers. rear is oem stuff i ignore.
i have this expensive as rs683 brake fluid in now although when i run out i'll use rbf 660, even though it would seem i'd be fine with rbf600 or super blue.
not sure why i can't find any pics anymore of when my brakes were beautiful and new. they don't look so great anymore. ho-hum. in any case i bought some temp stuff to use.
this is from my first time at blackhawk.
for some reason i can't find a pic of a later time at autobahn. i had a hard time finding it but did a few weeks ago though. i changed the 370 then, so the caliper got to at least 370 f. how hot does that mean the fluid was? i really don't know. doing some googling, per
http://publications.lib.chalmers.se/records/fulltext/162888.pdf maybe i can assume the caliper temp is a good proxy for fluid?
i was at gingerman this weekend. lots of pad life left. i also ziptied some porsche gt3 duct thingies to my control arms and used some tin snips to cut away part of the dust backing plate. a proper ducting kit would get air from the front and route it into the center of the rotor, i'm just blowing it at it. i put temp paint on before this weekend.
it's a year old but still feels thin. i thought i did a good job but after the weekend no white to be found at all, and not because i did anything toasty to it. the green is the low end, which did turn white. but that orange/red stuff did not. so my rotors are between 750 f and 1000 f.
per that paper it appears disc is more hot than pad as well.
so things might change if i go to a faster track like road america, but it seems i'm living well within my current compound of carbotech xp8s. i just ordered some again but the g-loc version. i do the same pads front and rear.
hawk has a more interesting graph although i have not used a pad of theirs in some time.
seems like a dtc-15 or black would feel most similar to me now. with a dtc-30 being safer temp wise, but with a higher coefficient of friction it would wear everything faster but not really give me any benefits it would seem.
given all this i wonder if i could even step down to ax6 pads? although carbotech's current site has mixed info from the chart above.
"A high torque brake compound delivering reliable and consistent performance over a very wide operating temperature range of 50°F to 1000°F + (10°C to 537°C+)."
i have no idea how far i am from the 1000 and the friction isn't much lower on the ax6 anyway though so i think i'm in the right spot i picked before i had all this info, that the xp8 compound (or g-loc r8) is the place for me to be.