At the European finals we all got down to 5.07. This was with handout TZ motors and handout Tamiya Sanyo 3600 stickpacks.
The cars were balistic! It was a fast and open track tough. We did a set 20 laps in the finals wich came down to 6min 30 sec. Ambiant temp was 25c°. The motors held out all weekend without a problem. We did scim them after every run, but thats only normal at an event like that.