I run a 1515/2y on mine, and with 8S of 1300mah lipo's, mech brakes with servo, and a receiver pack, I'm right at 6.5lbs. Which by the way is the weight of the new Losi without motor, electronics, servo's ect...
If I could only draw what I see in my head, then afford to build it, and finaly get to play with it...