RE: official mini quake thread
The Mamba 25 ESC would be ok with the right motor for the MQ, but guys had a large problem with 'cogging' installing the Mamba motors in the MQ. The MQ has a 380 size motor. The Mamba offerings are 300/370 size cans. The larger armateur and motor of the 380 give good low end and help the MQ get going. I THINK the MQ would run with a Mamba setup IF geared properly, but would otherwise cog and be a dog to get going. I would not get a mamba only MQ, especially if you are inexperienced.
Ball diffs are far superior to gear diffs for tuning on Electric cars/trucks. These little trucks don't have sealed diffs for modding with gear oils, so there is really no way to tune them. Unsealed gear diffs can really only be tuned 2 ways- locked or open. If you put diff oil in an MQ diff, you will just have a mess on your hands.