So, I just got the new Mamba X and 3800KV Castle combo installed. Wow. She is crazy fast and gobs of torque. I was running standard Slash 4x4 gearing of 13/54. Decided to throw an 18T pinion in and do some speed runs down my street. Warp freak'n speed. 1/8 wheel adapters are on the way as well as GRP S4 1/8 road wheels and tires!