Why does the size of the Brake Rotor matter in Coding?

Kabrich · 03-20-2017, 06:41 PM

Simple question.

Why does Brake Rotor size matter in coding?

While bigger may always be better, what actual difference could it possibly make in the coding?

Kabrich · 03-21-2017, 08:05 PM

Over a day and no response.

Best guess an European Performance shop gave me, which makes the best guess. / sense at this point is it might deal with how the ABS System works.

That's only a guess, but better than anything else I have heard - or that anyone has come up with for that matter.

hardparker · 03-21-2017, 08:46 PM

It could be used a few ways: to calculate brake torque, heat capacity/fade resistance, and may well be used to alter the hydraulic ratios in the ABS controller, which can effect pedal feel. At some point I want to try changing a bunch of the brake related coding to see what effect it may have, especially on brake feel and perceived performance.

03-20-2017, 06:41 PM	#1
Kabrich Banned 354 Rep 1,986 Posts Drives: '13 AH3 (335IH) 3F93 MSport Join Date: May 2013 Location: Florida iTrader: (6)	Why does the size of the Brake Rotor matter in Coding? Simple question. Why does Brake Rotor size matter in coding? While bigger may always be better, what actual difference could it possibly make in the coding? Last edited by Kabrich; 03-20-2017 at 11:26 PM..
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03-21-2017, 08:05 PM	#2
Kabrich Banned 354 Rep 1,986 Posts Drives: '13 AH3 (335IH) 3F93 MSport Join Date: May 2013 Location: Florida iTrader: (6)	Over a day and no response. Best guess an European Performance shop gave me, which makes the best guess. / sense at this point is it might deal with how the ABS System works. That's only a guess, but better than anything else I have heard - or that anyone has come up with for that matter.
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03-21-2017, 08:46 PM	#3
hardparker Father of Frankenfold 299 Rep 531 Posts Drives: Yo daddy's 2014 X3 M Sport Join Date: Jan 2017 Location: Albuquerque iTrader: (2) Garage List 2013 BMW X1 [0.00] 2014 BMW X3 [0.00]	It could be used a few ways: to calculate brake torque, heat capacity/fade resistance, and may well be used to alter the hydraulic ratios in the ABS controller, which can effect pedal feel. At some point I want to try changing a bunch of the brake related coding to see what effect it may have, especially on brake feel and perceived performance.
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