rorys esc links:  
http://vedder.se/2015/01/vesc-open-source-esc/
http://www.fightingrobots.co.uk/threads/13034-heavyweight-brushless-speed-controllers-vescs-for-sale-hi-amperage-version


random fra threads related 
http://www.fightingrobots.co.uk/threads/13392-weapon-esc

motor links 
https://hobbyking.com/en_us/turnigy-rotomax-50cc-size-brushless-outrunner-motor.html
https://hobbyking.com/en_us/turnigy-aerodrive-sk3-6374-192kv-brushless-outrunner-motor.html