gearing for xxx4? im a noob with this vehicle, help

lol, i am going to run a lrp 6.5 in it, has the 94t spur installed, anyone know a good pinion tooth to start at?

[maxair45]

I'm running a 25 tooth pinion on a high traction carpet in my 13.5.
Heres a spur gear color code chart so you can play around with the gearing:

76 Black
78 White
82 Yellow
84 Purple
86 Red
88 Green
90 Orange
92 Blue
94 White

are you running the 94t spur? sounds like i could run a 21t or so with the 6.5

[maxair45]

90 but as you go higher you'll run into problems with meshing.

really? seems like there is a ton of room, but i dont have the motor in there yet, i never used this spin type meshing that this car has