There is a topic where you can discuss the future of this hobby.
http://www.rctech.net/forum/racing-f...ing-hobby.html

Athough I still think the 5min qualify is more a tactic play of how to get it with or without a fuel stop. I wonder if Rody is going along with the current 4min qualify, if he and other engine builders/modders can/will/shall make a 4min milage motor for more power.