# Cooler Brakes : How Tos?

**URL:** https://forums.speedlife.net/t/cooler-brakes-how-tos/2313
**Category:** NYSpeed Automotive
**Created:** [September 13, 2005, 8:49am UTC](https://forums.speedlife.net/t/cooler-brakes-how-tos/2313 "2005-09-13T08:49:59Z")
**Posts on this page:** 1
**Showing post:** 21

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### Author: ![jeeves744](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jeeves744/32/7619_2.png) [@jeeves744](https://forums.speedlife.net/u/jeeves744)
#### Post date: [September 15, 2005, 7:07pm UTC](https://forums.speedlife.net/t/cooler-brakes-how-tos/2313/21 "2005-09-15T19:07:25Z")

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> [@audios](#):
>
> past couple of days i have looked for research on this. do you know of anyplace i can read about this in more detail. i am not understanding how removing of material and transferring heat somehow creates more heat? if the heat is transferred to new material it is going away isnt it?

Well you are combining two idea into one, so i will explain each.

ok think of it this way. When you use your brakes, they produce X amount of heat. That heat is spread out over the entire rotor. For example say 30\* per cubic inch. Now cross drill and slot the rotors. Now you just reduced the amout of area the heat can spread. You are still producing the same amount of heat, but have less space to spread it out. So now you would have 40\* per cubic inch.

The second part is that the slots and holes cause more friction. Therefore more friction = more heat = hotter rotor temps.

I dont remeber where i picked up the info but i’ve read it a few different places.

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