Braking problem - malfunctioning ABS

ChrisSlicks · 05-11-2010, 01:32 PM

Quote:

Originally Posted by daleks

StopTech has a great white paper on BBK's and their potential impact on ABS.

StopTech : Balanced Brake Upgrades

The problems of a misapplication of a BBK described in the article would apply to the braking system across the board however. The issue raised here is after time on the track (heat buildup in the rotor, caliper, pad, fluid, etc.) the ABS system seems to kick in early. The parameters of the ABS system may be so tightly constrained that when brake fade (due to heat buildup) sets in there is an immediate overreaction. When combined with a misapplied BBK, the overreaction is exacerbated.

Possibly. Maybe. Dunno.

It's a possibility. But in this case it would be the stock BBK (small BBK?) that was misapplied. Has anyone with base brakes experienced ice-mode?

I will say that the AP Racing kit goes for a longer period before the heat related ice-mode failure kicks in. The most notable difference besides the calipers is that the rear rotor is much smaller in comparison to stock, reducing the rear bias the stock setup has just slightly.

Hopefully I can get some decent measurements this weekend and we will see just how much heat auto-x can actually generate. Our auto-x courses are roughly twice the standard length, but even still there shouldn't be any way the brakes can overheat in those conditions, but we will see.

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