Brake temp after cool down lap at rotor and caliper

ValidusVentus

Anything new regarding this?

I know my front brakes get awfully hot even with the small Stillen ducting. Even the XP10s on the front were getting pretty thick visible deposit buildup on the rotor surface last weekend. After a while I could definitely feel the rough surface of the rotor in the brake pedal in a few brake zones. Didn't warp or significantly crack the rotors though. I did drive around the paddock for a few minutes after the cooldown lap and pushed my car back and forth a bit after I parked it. Thinking of hacksawing a shallow tangential groove (and filing the edges) into the middle of the XP10s since they dont have one (even though I do use slotted rotors) and they do have those 2 small holes which are maybe intended to perform the same function?

Actually, come to think of it I did quickly borrow an IR and hit my right front rotor last weekend. I think it was right up close to 600, obviously after the cooldown lap and parking it.

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Mods: Dedicated caged track car, lots of things. ||| Valkyrie Autosport |||

sig11

Unless I'm misunderstanding you I think that is a REALLY bad idea. :P Seems like it would give you a really good chance of the pad material disintegrating.

What would you hope to gain from that?

ValidusVentus

Which is why I haven't done it and mentioned it here . It used to be common practice with some race teams (cutting them), (don't know if its still done, I had assumed all race application pads now had them from the factory) in fact Carrol Smith talks about it in his book Tune to Win. The goal is to give the (new and old) brake dust somewhere to go rather than being pushed back into the rotor material by the rest of the pad. This way more of the pad is seeing a clean/clear surface when it makes contact with the rotor. It also helps somewhat with cooling the pad. It doesn't have anything to do with gassing, which is a thing of the past.

Also I don't believe there is anything special about the material at the front or back edge of the pads to begin with so how would adding another front and rear edge do anything bad?

I started a new thread on this so I wouldn't be jacking your thread OP as this was getting a little long:

Groove

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Mods: Dedicated caged track car, lots of things. ||| Valkyrie Autosport |||