First thoughts: Carbotech XP8 pads and slotted rotors - Page 3 - Toyota Yaris Forums

jkuchta · 12-18-2008, 12:50 AM

Update:

These pads rocked pretty hard at both the Autoclub Roval and the Streets of Willow. I experianced NO brake fade, and pedel feel was quite nice. Modulation was a snap, with really nice bite both cold and hot, though hot bite was phenominal!

One word of caution, though:

With the stock suspension and 500 treadwear tires (Yokohama Avid V4s), and running the XP8 compound up front and the 917 shoes in back, brake bias shifted to the rear to such an extent that moderate to hard braking while going anywhere but straight on the track resulted in a really light rear end (nearly got in trouble once going into the fast esses after the back straight at the Streets (clockwise). While the slight oversteer was very controllable, I still took notice (i.e. pucker factor). I have a feeling that a lot of this can be attributed to the overheated tires and pretty crazy forward weight transfer due to the soft OEM suspension. I'll soon be on coilovers and appropriate tires, so that should bring the braking behavior back more in line. Note though that trail-braking is still quite possible with the current setup, and I found it quite possible to "turn" the rear in very controlably in tighter turns (at the Streets). I'd caution against any trail-braking "exploring" on on/off ramps!

Thanks to all for the positive comments, and I'll keep everyone posted as to improvements and/or changes over the life of these pads.

ddongbap · 12-19-2008, 02:25 AM

Remember, your brakes will only be as good as your tires. As far as single runs. If you're already locking tires, or hitting ABS, then you need better tires.

But yes, the only real benefit beyond tires, is heat function.

12-18-2008, 12:50 AM	#1
jkuchta View User's Garage Drives: 2007 Yaris hatch (red) Join Date: Sep 2007 Location: L.A. Posts: 557	Update: These pads rocked pretty hard at both the Autoclub Roval and the Streets of Willow. I experianced NO brake fade, and pedel feel was quite nice. Modulation was a snap, with really nice bite both cold and hot, though hot bite was phenominal! One word of caution, though: With the stock suspension and 500 treadwear tires (Yokohama Avid V4s), and running the XP8 compound up front and the 917 shoes in back, brake bias shifted to the rear to such an extent that moderate to hard braking while going anywhere but straight on the track resulted in a really light rear end (nearly got in trouble once going into the fast esses after the back straight at the Streets (clockwise). While the slight oversteer was very controllable, I still took notice (i.e. pucker factor). I have a feeling that a lot of this can be attributed to the overheated tires and pretty crazy forward weight transfer due to the soft OEM suspension. I'll soon be on coilovers and appropriate tires, so that should bring the braking behavior back more in line. Note though that trail-braking is still quite possible with the current setup, and I found it quite possible to "turn" the rear in very controlably in tighter turns (at the Streets). I'd caution against any trail-braking "exploring" on on/off ramps! Thanks to all for the positive comments, and I'll keep everyone posted as to improvements and/or changes over the life of these pads. Last edited by jkuchta; 12-18-2008 at 04:52 AM.

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12-19-2008, 02:25 AM	#2
ddongbap Banned Drives: yw calls me douche and racist. Join Date: Aug 2007 Location: hay Posts: 2,183	Remember, your brakes will only be as good as your tires. As far as single runs. If you're already locking tires, or hitting ABS, then you need better tires. But yes, the only real benefit beyond tires, is heat function.