Quote:
Originally Posted by Northwest86
So I'm on holidays doing a bunch of track days. I had upgraded to the Upper spec calipers (GTS/BRZ you probably don't have the lower spec in the USA) with DBA T3's and Project Mu NS400s. That was possibly a mistake. The rears didn't go over the 630 Degree Celcius Temp paint marking but the fronts did. The pads are only good for 400 Degrees Celcius so they were baked good and proper. The stock shims even started to change colours. My front rotor is posted below. Obviously I hit ABS a few times as a newer track person which certainly didn't help. The rough track leading into the corners probably didn't help. I'll fix that with seat time. (I live 1500 miles from the track and as such, get to go rarely)
Now to the question. Will Project mu HC800 Pads help with the rotor scoring to an extent. My temperature problems could mostly be solved through better technique I think, but I may be on the edge of BBK's.
That leads to my second question. The 08-15 STI Brembos are a kit that most shops around here stock for reasonable prices. Will there be major bias issues that could make problems worse or are they are perfectly acceptable upgrade. I'd look at AP sprint type kits but basically no-one stocks them in Aus and the import costs and our low dollar make them outrageously expensive for so little use.
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I'm not sure about the temperature range, but it sounds like you may be dragging the brakes too long. You want to get your braking done quickly and purposefully then get off them. The reason I suggest it's technique is, with a good set of pads, fluid and lines (the last being optional) our stock systems are very capable but due to air flow issues very prone to overcooking easily. Compound that with, if you haven't done the pedal dance, the EBD system could be applying the brakes excessively as well. You mentioned rough track leading to the corners. With the traction/stability just 'off', it can still engage if you traverse rough surfaces. So you could have a situation where you were 'done' braking but the system applies them a little longer making them slightly less effective for the next corner if you're on a short/technical track. This means you're braking earlier and longer for the next corner further heating the brakes. It's a snowball effect.
Also, you want to threshold brake. Try to brake right up to the point ABS is about to activate. Don't get in the habit of using ABS, you're actually losing some of the weight transfer you're trying to accomplish under braking.