A slightly different take on water cooled brakes from the book "Brake Handbook" by Fred Puhn
"One of the latest tricks for cooling brakes is water cooling. A device is used to spray water into the brake-cooling ducts. The water vaporizes in the duct and cools the incoming air. Squirting water directly on the rotor has been used for years with varying degrees of success. The idea with this new systems is not to squirt water directly on the brake. Steam formed will not cool the brake as efficiently as air. Also, it may cause the rotors to crack. Instead, the water is strictly an air cooler." "..... First, make sure the air ducting is sized and sealed correctly, and the inlets are in a high pressure area. Also, be sure the wheels are vented correctly. If all this is not enough, then try water cooling. Because the water-cooling system is meant to cool the air in the brake-cooling duct, the system only works well on hot, dry days. If the air is cool and damp, little extra cooling is done. On a hot, dry day, water cooling can make a considerable difference." © Fred Puhn, "Brake Handbook" (page 147)
10x loser (Arse-Freeze '11 - Vodden '15) 1x WINNER! Arse-Freeze '14 in the Watermelon Volvo Wagon
Swedish Knievel Skycycle('90 Volvo 740 Wagon)