[jhautz]

2500mah seems really small to me. I wouldn't be worried about the run time if you were just going to run 5 minute qualifiers, but the current demend will be really tough on a pack that small. If you are looking to go small on the capacity due to short race lengths and you want a very light setup you are going to need to buy packs built with cells that have a very high discharge rating. I wouldnt personally even consider a 5s/2500mah pack in an 1/8 scale, and the 3300 would need to be built with cells rated for 30C continuous or better. Otherwise they may not last as long as you would like.

Yes you probably just fit the MM behind the battery tray. but its tight and I personally didnt like the way it handled with the battery weight that far forward. It made the back end too loose for my taste. I personally prefered it middle chassis which helped the back end feel more planted, but still allowed enough weight forward to get good turn in. I wound up with the speed controll over the rear driveshaft.

Tried fitting a losi tray at one point but it didnt work out to well. None of the holes really lined up with anything so the only way to mount it would have been to drill new holes in the chassis where the battery tray holes were. Mikes battery box is simple and works well IMO.