http://www.icare-rc.com/motor_controls_brushless.htm
There are also newer version rated for more amperage.
The Schultz seems to be the mack-daddy of all reliable esc's in the more stressful enviroment of the boating world. I don't understand why it doesn't hold up in cars... However, the Hydra HV240 is very nice and does come with Castle's legendary customer service.