Quite the response...
Well guys, I expected most of these questions would come up.
First off, the gearing was a bit too tall for the setup (single speed). It caused the speedo to go into thermal protection under hard driving. It came with a fan which I left off for the time being (some of the still pics show the fan installed). I was only able to fit a pair of 4s 2200mah LiPo packs in parallel within the narrow confines of the chassis and top plate.
I'm not sure what the run times actually are yet because this was the first run at speed. I am anticipating 6 to 7 minutes with this pack. I will have better data from the next race.
I am hoping to keep advancing this project and ultimately produce a complete kit that will be very much at home on big nitro tracks all over.
If can drum up some factory intrest, maybe a car in kit form may become a reality sooner rather than later.
I'm sure that with the right combination of motor, speed control and batteries we could see a high speed class that can be run indoors and won't piss off the neighbors in those noise sensitive areas.
I have been hearing rumors of a high voltage motor system comming out from Castle Creations soon and that may be the ticket for these cars.
Thanks again for all the interest!