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Old 04-27-2009, 07:59 PM   #6 (permalink)
The HACK
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Join Date: Apr 2009
Location: California
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Quote:
Originally Posted by ChrisSlicks View Post
Anyone else tried to use the stock pads at autocross? They seem to start off okay but turn to crap by the end of the run. Braking into the stop box the ABS was going into a kind of ice mode where the pedal was still firm but the ABS was pulsing and the car was barely slowing down. I slid through the stop box one time because the car just didn't want to stop, a rather disconcerting feeling!

Just from putting my hands over the brakes there was a big temperature difference front to rear. Do you think that the ABS system would get confused in this scenario and start activating prematurely?

I've ordered some Hawk HP+ pads so we'll see how those do compared to stock.
If your pedal was firm, and the ABS is pulsing, that means it's not the pads, since it's still got enough grip against the rotor to "lock-up" the rotors to cause the ABS sensor to release the pads. Sounds more like your tires are over-heated, and relatively little pressure from the pad was causing the tires to break traction.
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