[MetalMan]

Update! (after a month and a half).

The Revo is operational, and about 96% complete. The other 4% includes minor details, like increasing the strength of the battery hold-downs. It's running 5s2p A123 cells with a Mamba Max and Feigao 540C 7XL with my custom "slipperential" on pre-3.3 extended chassis (aftermarket). So far, it runs very well. I have 30,000wt. oil in the center diff, but unfortunately it is leaking pretty badly (I gotta get a new case and o-rings for it). As it is, it will wheelie, lifting the front tires up a couple inches from a stand-still, and then it quickly sets them down and takes off as the front tires gain traction.

Unfortunately, I was having problems with the Mamba Max thermalling after a few minutes. Part of the reason may have been starting and stopping very quickly with Maxx Mashers in the street (HIGH traction). But that problem has been resolved by mounting a 40mm 5v fan over the heatsink of the MM (a screw threads into the fins of the heatsink). And now, the MM is running at something like 135-140 deg.
As for the motor, it has hit something like 150 at the highest. I would say that's pretty good, considering that the gearing on the Revo right now was an estimate from before I ever ran the truck. The gearing is 20t pinion/40t spur, and then for the "slipperential" it has an 18t pinion on a 44t spur. The estimated speed is at 38.5mph with the battery voltage at 2.8v/cell, and assuming no tire ballooning on 6" tires (they're duct-taped on the inside).

Pics should come soon :).