Brandon "Don't call me Brandonna" A did a good job enough with the GV2T to make Tekin's homepage for winning X-Fest last year, and he seems even faster with the GV2 Buggy!
One of the reasons I picked up a few more of these buggies is that they take a really good beating, and my daughters are like there old man, squeeze the trigger through the remote!
As for servo torque and speed, I personally say minimum 80oz or torque and .15 sec transit time on a 2wd buggy.
Only things you will also want to look into for the buggy upon purchase I would say are:
- Carbide or some other hopup diff balls
- don't use stock diff grease
- do the long screw mod (basically, run 4 long screws through 4 present chassis spots, and put a locknut on each, simple)
If you did a truck, same as above plus:
- aluminum front bulkhead (or take out play between hingepins and chassis)
- RTR buggy hexes for stock wheels, or just use AE wheels in rear
Again, pretty simple stuff.
2wdMod also has some slick looking conversions on the way to turn the vehicles into a Mid Motor setup, even an Short Course Conversion for the truck.